component
KSZ8795CLXCC
Public Made by Adomby adom
Microchip Tech Interface - Specialized, LQFP-80(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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KSZ8795CLXCC
Microchip Tech · Interface - Specialized · LQFP-80(10x10)
KSZ8795CLXCC from Microchip Tech, in a LQFP-80(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD12A | power_in | 1.2V core power. |
| 2 | VDDAT | power_in | 3.3V or 2.5V analog power. |
| 3 | GNDA | power_in | Analog ground. |
| 4 | RXP1 | input | Port 1 physical receive signal + (differential). |
| 5 | RXM1 | input | Port 1 physical receive signal - (differential). |
| 6 | TXP1 | output | Port 1 physical transmit signal + (differential). |
| 7 | TXM1 | output | Port 1 physical transmit signal - (differential). |
| 8 | RXP2 | input | Port 2 physical receive signal + (differential). |
| 9 | RXM2 | input | Port 2 physical receive signal - (differential). |
| 10 | TXP2 | output | Port 2 physical transmit signal + (differential). |
| 11 | TXM2 | output | Port 2 physical transmit signal - (differential). |
| 12 | VDDAT | power_in | 3.3V or 2.5V analog power. |
| 13 | RXP3 | input | Port 3 physical receive signal + (differential). |
| 14 | RXM3 | input | Port 3 physical receive signal - (differential). |
| 15 | TXP3 | output | Port 3 physical transmit signal + (differential). |
| 16 | TXM3 | output | Port 3 physical transmit signal - (differential). |
| 17 | RXP4 | input | Port 4 physical receive signal + (differential). |
| 18 | RXM4 | input | Port 4 physical receive signal - (differential). |
| 19 | TXP4 | output | Port 4 physical transmit signal + (differential). |
| 20 | TXM4 | output | Port 4 physical transmit signal - (differential). |
| 21 | GNDA | power_in | Analog ground. |
| 22 | NC | unconnected | No connect. |
| 23 | INTR_N | output | Active-low open-drain interrupt output; an external pull-up resistor is needed when in use. |
| 24 | LED3_1 | bidirectional | Port 3 LED indicator 1 (internal pull-up during reset); strap with LED3_0 selects Port 5 GMAC5 mode: 00 MII, 01 RMII, 10 GMII, 11 RGMII (default). |
| 25 | LED3_0 | bidirectional | Port 3 LED indicator 0 (internal pull-up during reset); strap option with LED3_1 for GMAC5 interface mode select. |
| 26 | VDD12D | power_in | 1.2V core power. |
| 27 | GNDD | power_in | Digital ground. |
| 28 | LED4_1 | bidirectional | Port 4 LED indicator 1 (internal pull-up during reset, output otherwise). |
| 29 | TXEN5/TXD5_CTL | input | Port 5 switch transmit enable in GMII/MII/RMII, or transmit data control in RGMII; internal pull-down. |
| 30 | TXD5_0 | input | Port 5 switch transmit bit 0 for GMII/RGMII/MII/RMII; internal pull-down. |
| 31 | LED4_0 | bidirectional | Port 4 LED indicator 0 (internal pull-up during reset, output otherwise). |
| 32 | TXD5_1 | input | Port 5 switch transmit bit 1 for GMII/RGMII/MII/RMII; internal pull-down. |
| 33 | GNDD | power_in | Digital ground. |
| 34 | VDDIO | power_in | 3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry. |
| 35 | TXD5_2 | input | Port 5 switch transmit bit 2 for GMII/RGMII/MII; no connection in RMII. |
| 36 | TXD5_3 | input | Port 5 switch transmit bit 3 for GMII/RGMII/MII; no connection in RMII. |
| 37 | TXER5 | input | Port 5 switch transmit error for GMII/MII; no connection in RGMII/RMII. |
| 38 | TXD5_4 | input | Port 5 switch transmit bit 4 in GMII only; no connection in RGMII/MII/RMII. |
| 39 | TXD5_5 | input | Port 5 switch transmit bit 5 in GMII only; no connection in RGMII/MII/RMII. |
| 40 | TXD5_6 | input | Port 5 switch transmit bit 6 in GMII only; no connection in RGMII/MII/RMII. |
| 41 | TXD5_7 | input | Port 5 switch transmit bit 7 in GMII only; no connection in RGMII/MII/RMII. |
| 42 | VDD12D | power_in | 1.2V core power. |
| 43 | TXC5/REFCLKI/GTXC5 | bidirectional | Port 5 GMAC5 clock: MII 2.5/25 MHz (output in PHY mode, input in MAC mode), RMII 50 MHz input, GMII/RGMII 125 MHz transmit clock input. |
| 44 | RXC5/GRXC5 | bidirectional | Port 5 GMAC5 clock: MII 2.5/25 MHz (output in PHY mode, input in MAC mode), RMII 50 MHz output, GMII/RGMII 125 MHz receive clock output. |
| 45 | RXD5_0 | bidirectional | Port 5 switch receive bit 0 for GMII/RGMII/MII/RMII; input with pull-down during reset, output otherwise. |
| 46 | RXD5_1 | bidirectional | Port 5 switch receive bit 1 for GMII/RGMII/MII/RMII; input with pull-down during reset, output otherwise. |
| 47 | GNDD | power_in | Digital ground. |
| 48 | VDDIO | power_in | 3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry. |
| 49 | RXD5_2 | bidirectional | Port 5 switch receive bit 2 for GMII/RGMII/MII; no connection in RMII. |
| 50 | RXD5_3 | bidirectional | Port 5 switch receive bit 3 for GMII/RGMII/MII; no connection in RMII. |
| 51 | RXDV5/CRSDV5/RXD5_CTL | bidirectional | Receive data valid in GMII/MII, CRSDV5 in RMII, or receive data control in RGMII. |
| 52 | RXER5 | bidirectional | Port 5 switch receive error for GMII/MII; no connection in RGMII/RMII. |
| 53 | CRS5 | bidirectional | Port 5 carrier sense for GMII/MII; no connection in RGMII/RMII. |
| 54 | COL5 | bidirectional | Port 5 collision detect for GMII/MII; no connection in RGMII/RMII. |
| 55 | REFCLKO | bidirectional | 25 MHz clock output option, controlled by strap LED2_0 and Global Register 11 bit 1; default enabled, better disabled if unused. |
| 56 | PME_N | bidirectional | Power management event signal indicating a WoL wake-up frame was detected; polarity programmable, default active-low. |
| 57 | RXD5_4 | bidirectional | Port 5 switch receive bit 4 in GMII only; no connection in RGMII/MII/RMII. |
| 58 | RXD5_5 | bidirectional | Port 5 switch receive bit 5 in GMII only; no connection in RGMII/MII/RMII. |
| 59 | RXD5_6 | bidirectional | Port 5 switch receive bit 6 in GMII only; no connection in RGMII/MII/RMII. |
| 60 | RXD5_7 | bidirectional | Port 5 switch receive bit 7 in GMII only; no connection in RGMII/MII/RMII. |
| 61 | GNDD | power_in | Digital ground. |
| 62 | LED2_1 | bidirectional | Port 2 LED indicator 1; strap selects Port 5 GMII/MII MAC/PHY mode (PU MAC default, PD PHY) and RMII clock mode (PU clock mode, PD normal mode). |
| 63 | LED2_0 | bidirectional | Port 2 LED indicator 0; strap enables REFCLKO 25 MHz output (PU enabled default, PD disabled). |
| 64 | LED1_1 | bidirectional | Port 1 LED indicator 1; strap selects PLL clock source (PU use 25 MHz XI/XO, PD use external clock from TXC5 in RMII normal mode). |
| 65 | LED1_0 | bidirectional | Port 1 LED indicator 0; strap selects GMII/RGMII speed (PU 1Gbps default, PD 10/100Mbps). |
| 66 | SPIQ | bidirectional | SPI serial data output in SPI client mode; strap selects serial bus (PD SPI client mode, PU MDC/MDIO mode), external pull-up or pull-down required. |
| 67 | SCL_MDC | input | Clock input for SPI or MDC/MDIO interface, up to 25 MHz. |
| 68 | SDA_MDIO | bidirectional | Serial data input in SPI client mode, or MDC/MDIO data input/output. |
| 69 | SPIS_N | input | Active-low SPI client mode chip select; when high the device is deselected and SPIQ is high impedance. |
| 70 | VDDIO | power_in | 3.3V, 2.5V or 1.8V digital VDD for digital I/O circuitry. |
| 71 | GNDD | power_in | Digital ground. |
| 72 | RST_N | input | Active-low hardware reset input with internal pull-up. |
| 73 | VDD12D | power_in | 1.2V core power. |
| 74 | NC | unconnected | No connect. |
| 75 | ATST | unconnected | No connect; factory test pin. |
| 76 | VDDAT | power_in | 3.3V or 2.5V analog power. |
| 77 | ISET | passive | Sets physical transmit output current; connect to GND through a 12.4 kOhm 1% resistor. |
| 78 | GNDA | power_in | Analog ground. |
| 79 | XI | input | Crystal/oscillator input; 25 MHz crystal or 3.3V oscillator with ±50 ppm tolerance. |
| 80 | XO | output | Crystal clock output; connects to one end of the 25 MHz crystal. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | LQFP-80(10x10) |
| Category | Communication Interface Chip/UART/485/232 |
| Pins | 80 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage VDD12A, VDD12D | -0.5 | 1.8 | V | 115 | |||
| Supply Voltage VDDAT, VDDIO | -0.5 | 4 | V | 115 | |||
| Input Voltage | -0.5 | 4 | V | 115 | |||
| Output Voltage | -0.5 | 4 | V | 115 | |||
| Lead Temperature | 260 | °C | soldering, 10s | 115 | |||
| Storage Temperature | TS | -55 | 150 | °C | 115 | ||
| Maximum Junction Temperature | 125 | °C | 115 | ||||
| ESD Rating | 5 | kV | 115 | ||||
| Supply Voltage VDD12A, VDD12D | 1.14 | 1.26 | V | 115 | |||
| Supply Voltage VDDAT | VDDAT | 3.135 | 3.465 | V | VDDAT @ 3.3V | 115 | |
| Supply Voltage VDDAT | VDDAT | 2.375 | 2.625 | V | VDDAT @ 2.5V | 115 | |
| Supply Voltage VDDIO | VDDIO | 3.135 | 3.465 | V | VDDIO @ 3.3V | 115 | |
| Supply Voltage VDDIO | VDDIO | 2.375 | 2.625 | V | VDDIO @ 2.5V | 115 | |
| Supply Voltage VDDIO | VDDIO | 1.71 | 1.89 | V | VDDIO @ 1.8V | 115 | |
| Ambient Temperature (Commercial) | TA | 0 | 70 | °C | Commercial | 115 | |
| Package Thermal Resistance | ΘJA | 55.05 | °C/W | No heat spreader, air velocity 0m/s | 115 | ||
| Package Thermal Resistance | ΘJC | 25.06 | °C/W | No heat spreader, air velocity 0m/s | 115 | ||
| Input High Voltage | VIH | 2 | V | VDDIO = 3.3V | 116 | ||
| Input High Voltage | VIH | 1.8 | V | VDDIO = 2.5V | 116 | ||
| Input High Voltage | VIH | 1.3 | V | VDDIO = 1.8V | 116 | ||
| Input Low Voltage | VIL | 0.8 | V | VDDIO = 3.3V | 116 | ||
| Input Low Voltage | VIL | 0.7 | V | VDDIO = 2.5V | 116 | ||
| Input Low Voltage | VIL | 0.5 | V | VDDIO = 1.8V | 116 | ||
| Input Current (Excluding Pull-Up/Pull-Down) | IIN | 10 | µA | VIN = GND ~ VDDIO | 116 | ||
| Output High Voltage | VOH | 2.4 | V | VDDIO = 3.3V | 116 | ||
| Output High Voltage | VOH | 2 | V | VDDIO = 2.5V | 116 | ||
| Output High Voltage | VOH | 1.5 | V | VDDIO = 1.8V | 116 | ||
| Output Low Voltage | VOL | 0.4 | V | VDDIO = 3.3V | 117 | ||
| Output Low Voltage | VOL | 0.3 | V | VDDIO = 1.8V | 117 | ||
| Output Tri-State Leakage | IOZ | 10 | µA | VIN = GND ~ VDDIO | 117 | ||
| 100BASE-TX Peak Differential Output Voltage | VO | 0.95 | 1.05 | V | 100Ω termination on the differential output | 117 | |
| 100BASE-TX Output Voltage Imbalance | VIMB | 2 | % | 100Ω termination on the differential output | 117 | ||
| 100BASE-TX Rise/Fall Time | tr/tf | 3 | 5 | ns | 117 | ||
| 100BASE-TX Rise/Fall Time Imbalance | 0 | 0.5 | ns | 117 | |||
| 100BASE-TX Duty Cycle Distortion | -0.5 | 0.5 | ns | 117 | |||
| 100BASE-TX Overshoot | 5 | % | 117 | ||||
| 100BASE-TX Output Jitters | 0 | 0.75 | 1.4 | ns | Peak-to-Peak | 117 | |
| 10BASE-T Receive Squelch Threshold | VSQ | 300 | 400 | 585 | mV | 5 MHz square wave | 117 |
| 10BASE-T Peak Differential Output Voltage | VP | 2.2 | 2.5 | 2.8 | V | 100Ω termination on the differential output; VDDAT = 3.3V | 117 |
| 10BASE-T Output Jitters | 1.4 | 3.5 | ns | Peak-to-Peak; VDDAT = 3.3V | 117 | ||
| 10BASE-T Rise/Fall Times | 28 | 30 | ns | VDDAT = 3.3V | 117 | ||
| I/O Pin Effective Pull-Up Resistance | R1.8PU | 75 | 95 | 135 | kΩ | VDDIO = 1.8V | 117 |
| I/O Pin Effective Pull-Down Resistance | R1.8PD | 53 | 68 | 120 | kΩ | VDDIO = 1.8V | 117 |
| I/O Pin Effective Pull-Up Resistance | R2.5PU | 46 | 60 | 93 | kΩ | VDDIO = 2.5V | 117 |
| I/O Pin Effective Pull-Down Resistance | R2.5PD | 46 | 59 | 103 | kΩ | VDDIO = 2.5V | 117 |
| I/O Pin Effective Pull-Up Resistance | R3.3PU | 35 | 45 | 65 | kΩ | VDDIO = 3.3V | 117 |
| I/O Pin Effective Pull-Down Resistance | R3.3PD | 37 | 46 | 74 | kΩ | VDDIO = 3.3V | 117 |
| GMII Set-Up Time | tIS | 1.2 | ns | 118 | |||
| GMII Hold Time | tIH | 1.2 | ns | 118 | |||
| GMII Output Delay Respect to Clock Falling Edge | tOD | 1 | ns | 118 | |||
| GMII Clock Cycle | 8 | ns | 118 | ||||
| 100BASE-TX Transmitter 3.3V Analog Current | IDX | 142 | mA | VDDAT; all ports 100% utilization | 116 | ||
| 100BASE-TX 1.2V Current | ID12 | 35 | mA | VDD12A + VDD12D; all ports 100% utilization | 116 | ||
| 100BASE-TX Digital IO 3.3V Current | IDDIO | 15 | mA | VDDIO; all ports 100% utilization | 116 | ||
| 10BASE-T Transmitter 3.3V Analog Current | IDX | 135 | mA | VDDAT; all ports 100% utilization | 116 | ||
| 10BASE-T 1.2V Current | ID12 | 30 | mA | VDD12A + VDD12D; all ports 100% utilization | 116 | ||
| Soft Power-Down Mode 3.3V Current | ISPDM1 | 0.07 | mA | VDDAT + VDDIO | 116 | ||
| Soft Power-Down Mode 1.2V Current | ISPDM2 | 0.2 | mA | VDD12A + VDD12D | 116 | ||
| Energy Detect Mode (EDPD) 3.3V Current | IEDM1 | 21 | mA | VDDAT + VDDIO | 116 | ||
| 100BT EEE Mode at Idle 3.3V Current | IEEE1 | 22.5 | mA | VDDAT + VDDIO | 116 |
CAD (KiCad official)
- Symbol:
KSZ8795CLXCC - Footprint:
Package_QFP:LQFP-80_10x10mm_P0.4mm - 3D model: LQFP-80(10x10) (KiCad packages3D, STEP)
- 3D model files:
ksz8795clxcc-etched.step/ksz8795clxcc-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ksz8795clxcc.step/ksz8795clxcc.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (135 pp, sha256
d02372cc17b71e8b, retrieved 2026-10-31, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# KSZ8795CLXCC
**Microchip Tech** · Interface - Specialized · LQFP-80(10x10)
KSZ8795CLXCC from Microchip Tech, in a LQFP-80(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD12A | power_in | 1.2V core power. |
| 2 | VDDAT | power_in | 3.3V or 2.5V analog power. |
| 3 | GNDA | power_in | Analog ground. |
| 4 | RXP1 | input | Port 1 physical receive signal + (differential). |
| 5 | RXM1 | input | Port 1 physical receive signal - (differential). |
| 6 | TXP1 | output | Port 1 physical transmit signal + (differential). |
| 7 | TXM1 | output | Port 1 physical transmit signal - (differential). |
| 8 | RXP2 | input | Port 2 physical receive signal + (differential). |
| 9 | RXM2 | input | Port 2 physical receive signal - (differential). |
| 10 | TXP2 | output | Port 2 physical transmit signal + (differential). |
| 11 | TXM2 | output | Port 2 physical transmit signal - (differential). |
| 12 | VDDAT | power_in | 3.3V or 2.5V analog power. |
| 13 | RXP3 | input | Port 3 physical receive signal + (differential). |
| 14 | RXM3 | input | Port 3 physical receive signal - (differential). |
| 15 | TXP3 | output | Port 3 physical transmit signal + (differential). |
| 16 | TXM3 | output | Port 3 physical transmit signal - (differential). |
| 17 | RXP4 | input | Port 4 physical receive signal + (differential). |
| 18 | RXM4 | input | Port 4 physical receive signal - (differential). |
| 19 | TXP4 | output | Port 4 physical transmit signal + (differential). |
| 20 | TXM4 | output | Port 4 physical transmit signal - (differential). |
| 21 | GNDA | power_in | Analog ground. |
| 22 | NC | unconnected | No connect. |
| 23 | INTR_N | output | Active-low open-drain interrupt output; an external pull-up resistor is needed when in use. |
| 24 | LED3_1 | bidirectional | Port 3 LED indicator 1 (internal pull-up during reset); strap with LED3_0 selects Port 5 GMAC5 mode: 00 MII, 01 RMII, 10 GMII, 11 RGMII (default). |
| 25 | LED3_0 | bidirectional | Port 3 LED indicator 0 (internal pull-up during reset); strap option with LED3_1 for GMAC5 interface mode select. |
| 26 | VDD12D | power_in | 1.2V core power. |
| 27 | GNDD | power_in | Digital ground. |
| 28 | LED4_1 | bidirectional | Port 4 LED indicator 1 (internal pull-up during reset, output otherwise). |
| 29 | TXEN5/TXD5_CTL | input | Port 5 switch transmit enable in GMII/MII/RMII, or transmit data control in RGMII; internal pull-down. |
| 30 | TXD5_0 | input | Port 5 switch transmit bit 0 for GMII/RGMII/MII/RMII; internal pull-down. |
| 31 | LED4_0 | bidirectional | Port 4 LED indicator 0 (internal pull-up during reset, output otherwise). |
| 32 | TXD5_1 | input | Port 5 switch transmit bit 1 for GMII/RGMII/MII/RMII; internal pull-down. |
| 33 | GNDD | power_in | Digital ground. |
| 34 | VDDIO | power_in | 3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry. |
| 35 | TXD5_2 | input | Port 5 switch transmit bit 2 for GMII/RGMII/MII; no connection in RMII. |
| 36 | TXD5_3 | input | Port 5 switch transmit bit 3 for GMII/RGMII/MII; no connection in RMII. |
| 37 | TXER5 | input | Port 5 switch transmit error for GMII/MII; no connection in RGMII/RMII. |
| 38 | TXD5_4 | input | Port 5 switch transmit bit 4 in GMII only; no connection in RGMII/MII/RMII. |
| 39 | TXD5_5 | input | Port 5 switch transmit bit 5 in GMII only; no connection in RGMII/MII/RMII. |
| 40 | TXD5_6 | input | Port 5 switch transmit bit 6 in GMII only; no connection in RGMII/MII/RMII. |
| 41 | TXD5_7 | input | Port 5 switch transmit bit 7 in GMII only; no connection in RGMII/MII/RMII. |
| 42 | VDD12D | power_in | 1.2V core power. |
| 43 | TXC5/REFCLKI/GTXC5 | bidirectional | Port 5 GMAC5 clock: MII 2.5/25 MHz (output in PHY mode, input in MAC mode), RMII 50 MHz input, GMII/RGMII 125 MHz transmit clock input. |
| 44 | RXC5/GRXC5 | bidirectional | Port 5 GMAC5 clock: MII 2.5/25 MHz (output in PHY mode, input in MAC mode), RMII 50 MHz output, GMII/RGMII 125 MHz receive clock output. |
| 45 | RXD5_0 | bidirectional | Port 5 switch receive bit 0 for GMII/RGMII/MII/RMII; input with pull-down during reset, output otherwise. |
| 46 | RXD5_1 | bidirectional | Port 5 switch receive bit 1 for GMII/RGMII/MII/RMII; input with pull-down during reset, output otherwise. |
| 47 | GNDD | power_in | Digital ground. |
| 48 | VDDIO | power_in | 3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry. |
| 49 | RXD5_2 | bidirectional | Port 5 switch receive bit 2 for GMII/RGMII/MII; no connection in RMII. |
| 50 | RXD5_3 | bidirectional | Port 5 switch receive bit 3 for GMII/RGMII/MII; no connection in RMII. |
| 51 | RXDV5/CRSDV5/RXD5_CTL | bidirectional | Receive data valid in GMII/MII, CRSDV5 in RMII, or receive data control in RGMII. |
| 52 | RXER5 | bidirectional | Port 5 switch receive error for GMII/MII; no connection in RGMII/RMII. |
| 53 | CRS5 | bidirectional | Port 5 carrier sense for GMII/MII; no connection in RGMII/RMII. |
| 54 | COL5 | bidirectional | Port 5 collision detect for GMII/MII; no connection in RGMII/RMII. |
| 55 | REFCLKO | bidirectional | 25 MHz clock output option, controlled by strap LED2_0 and Global Register 11 bit 1; default enabled, better disabled if unused. |
| 56 | PME_N | bidirectional | Power management event signal indicating a WoL wake-up frame was detected; polarity programmable, default active-low. |
| 57 | RXD5_4 | bidirectional | Port 5 switch receive bit 4 in GMII only; no connection in RGMII/MII/RMII. |
| 58 | RXD5_5 | bidirectional | Port 5 switch receive bit 5 in GMII only; no connection in RGMII/MII/RMII. |
| 59 | RXD5_6 | bidirectional | Port 5 switch receive bit 6 in GMII only; no connection in RGMII/MII/RMII. |
| 60 | RXD5_7 | bidirectional | Port 5 switch receive bit 7 in GMII only; no connection in RGMII/MII/RMII. |
| 61 | GNDD | power_in | Digital ground. |
| 62 | LED2_1 | bidirectional | Port 2 LED indicator 1; strap selects Port 5 GMII/MII MAC/PHY mode (PU MAC default, PD PHY) and RMII clock mode (PU clock mode, PD normal mode). |
| 63 | LED2_0 | bidirectional | Port 2 LED indicator 0; strap enables REFCLKO 25 MHz output (PU enabled default, PD disabled). |
| 64 | LED1_1 | bidirectional | Port 1 LED indicator 1; strap selects PLL clock source (PU use 25 MHz XI/XO, PD use external clock from TXC5 in RMII normal mode). |
| 65 | LED1_0 | bidirectional | Port 1 LED indicator 0; strap selects GMII/RGMII speed (PU 1Gbps default, PD 10/100Mbps). |
| 66 | SPIQ | bidirectional | SPI serial data output in SPI client mode; strap selects serial bus (PD SPI client mode, PU MDC/MDIO mode), external pull-up or pull-down required. |
| 67 | SCL_MDC | input | Clock input for SPI or MDC/MDIO interface, up to 25 MHz. |
| 68 | SDA_MDIO | bidirectional | Serial data input in SPI client mode, or MDC/MDIO data input/output. |
| 69 | SPIS_N | input | Active-low SPI client mode chip select; when high the device is deselected and SPIQ is high impedance. |
| 70 | VDDIO | power_in | 3.3V, 2.5V or 1.8V digital VDD for digital I/O circuitry. |
| 71 | GNDD | power_in | Digital ground. |
| 72 | RST_N | input | Active-low hardware reset input with internal pull-up. |
| 73 | VDD12D | power_in | 1.2V core power. |
| 74 | NC | unconnected | No connect. |
| 75 | ATST | unconnected | No connect; factory test pin. |
| 76 | VDDAT | power_in | 3.3V or 2.5V analog power. |
| 77 | ISET | passive | Sets physical transmit output current; connect to GND through a 12.4 kOhm 1% resistor. |
| 78 | GNDA | power_in | Analog ground. |
| 79 | XI | input | Crystal/oscillator input; 25 MHz crystal or 3.3V oscillator with ±50 ppm tolerance. |
| 80 | XO | output | Crystal clock output; connects to one end of the 25 MHz crystal. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | LQFP-80(10x10) |
| Category | Communication Interface Chip/UART/485/232 |
| Pins | 80 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage VDD12A, VDD12D | | -0.5 | | 1.8 | V | | 115 |
| Supply Voltage VDDAT, VDDIO | | -0.5 | | 4 | V | | 115 |
| Input Voltage | | -0.5 | | 4 | V | | 115 |
| Output Voltage | | -0.5 | | 4 | V | | 115 |
| Lead Temperature | | | | 260 | °C | soldering, 10s | 115 |
| Storage Temperature | TS | -55 | | 150 | °C | | 115 |
| Maximum Junction Temperature | | | | 125 | °C | | 115 |
| ESD Rating | | | | 5 | kV | | 115 |
| Supply Voltage VDD12A, VDD12D | | 1.14 | | 1.26 | V | | 115 |
| Supply Voltage VDDAT | VDDAT | 3.135 | | 3.465 | V | VDDAT @ 3.3V | 115 |
| Supply Voltage VDDAT | VDDAT | 2.375 | | 2.625 | V | VDDAT @ 2.5V | 115 |
| Supply Voltage VDDIO | VDDIO | 3.135 | | 3.465 | V | VDDIO @ 3.3V | 115 |
| Supply Voltage VDDIO | VDDIO | 2.375 | | 2.625 | V | VDDIO @ 2.5V | 115 |
| Supply Voltage VDDIO | VDDIO | 1.71 | | 1.89 | V | VDDIO @ 1.8V | 115 |
| Ambient Temperature (Commercial) | TA | 0 | | 70 | °C | Commercial | 115 |
| Package Thermal Resistance | ΘJA | | 55.05 | | °C/W | No heat spreader, air velocity 0m/s | 115 |
| Package Thermal Resistance | ΘJC | | 25.06 | | °C/W | No heat spreader, air velocity 0m/s | 115 |
| Input High Voltage | VIH | 2 | | | V | VDDIO = 3.3V | 116 |
| Input High Voltage | VIH | 1.8 | | | V | VDDIO = 2.5V | 116 |
| Input High Voltage | VIH | 1.3 | | | V | VDDIO = 1.8V | 116 |
| Input Low Voltage | VIL | | | 0.8 | V | VDDIO = 3.3V | 116 |
| Input Low Voltage | VIL | | | 0.7 | V | VDDIO = 2.5V | 116 |
| Input Low Voltage | VIL | | | 0.5 | V | VDDIO = 1.8V | 116 |
| Input Current (Excluding Pull-Up/Pull-Down) | IIN | | | 10 | µA | VIN = GND ~ VDDIO | 116 |
| Output High Voltage | VOH | 2.4 | | | V | VDDIO = 3.3V | 116 |
| Output High Voltage | VOH | 2 | | | V | VDDIO = 2.5V | 116 |
| Output High Voltage | VOH | 1.5 | | | V | VDDIO = 1.8V | 116 |
| Output Low Voltage | VOL | | | 0.4 | V | VDDIO = 3.3V | 117 |
| Output Low Voltage | VOL | | | 0.3 | V | VDDIO = 1.8V | 117 |
| Output Tri-State Leakage | IOZ | | | 10 | µA | VIN = GND ~ VDDIO | 117 |
| 100BASE-TX Peak Differential Output Voltage | VO | 0.95 | | 1.05 | V | 100Ω termination on the differential output | 117 |
| 100BASE-TX Output Voltage Imbalance | VIMB | | | 2 | % | 100Ω termination on the differential output | 117 |
| 100BASE-TX Rise/Fall Time | tr/tf | 3 | | 5 | ns | | 117 |
| 100BASE-TX Rise/Fall Time Imbalance | | 0 | | 0.5 | ns | | 117 |
| 100BASE-TX Duty Cycle Distortion | | -0.5 | | 0.5 | ns | | 117 |
| 100BASE-TX Overshoot | | | | 5 | % | | 117 |
| 100BASE-TX Output Jitters | | 0 | 0.75 | 1.4 | ns | Peak-to-Peak | 117 |
| 10BASE-T Receive Squelch Threshold | VSQ | 300 | 400 | 585 | mV | 5 MHz square wave | 117 |
| 10BASE-T Peak Differential Output Voltage | VP | 2.2 | 2.5 | 2.8 | V | 100Ω termination on the differential output; VDDAT = 3.3V | 117 |
| 10BASE-T Output Jitters | | | 1.4 | 3.5 | ns | Peak-to-Peak; VDDAT = 3.3V | 117 |
| 10BASE-T Rise/Fall Times | | | 28 | 30 | ns | VDDAT = 3.3V | 117 |
| I/O Pin Effective Pull-Up Resistance | R1.8PU | 75 | 95 | 135 | kΩ | VDDIO = 1.8V | 117 |
| I/O Pin Effective Pull-Down Resistance | R1.8PD | 53 | 68 | 120 | kΩ | VDDIO = 1.8V | 117 |
| I/O Pin Effective Pull-Up Resistance | R2.5PU | 46 | 60 | 93 | kΩ | VDDIO = 2.5V | 117 |
| I/O Pin Effective Pull-Down Resistance | R2.5PD | 46 | 59 | 103 | kΩ | VDDIO = 2.5V | 117 |
| I/O Pin Effective Pull-Up Resistance | R3.3PU | 35 | 45 | 65 | kΩ | VDDIO = 3.3V | 117 |
| I/O Pin Effective Pull-Down Resistance | R3.3PD | 37 | 46 | 74 | kΩ | VDDIO = 3.3V | 117 |
| GMII Set-Up Time | tIS | 1.2 | | | ns | | 118 |
| GMII Hold Time | tIH | 1.2 | | | ns | | 118 |
| GMII Output Delay Respect to Clock Falling Edge | tOD | | | 1 | ns | | 118 |
| GMII Clock Cycle | | | 8 | | ns | | 118 |
| 100BASE-TX Transmitter 3.3V Analog Current | IDX | | 142 | | mA | VDDAT; all ports 100% utilization | 116 |
| 100BASE-TX 1.2V Current | ID12 | | 35 | | mA | VDD12A + VDD12D; all ports 100% utilization | 116 |
| 100BASE-TX Digital IO 3.3V Current | IDDIO | | 15 | | mA | VDDIO; all ports 100% utilization | 116 |
| 10BASE-T Transmitter 3.3V Analog Current | IDX | | 135 | | mA | VDDAT; all ports 100% utilization | 116 |
| 10BASE-T 1.2V Current | ID12 | | 30 | | mA | VDD12A + VDD12D; all ports 100% utilization | 116 |
| Soft Power-Down Mode 3.3V Current | ISPDM1 | | 0.07 | | mA | VDDAT + VDDIO | 116 |
| Soft Power-Down Mode 1.2V Current | ISPDM2 | | 0.2 | | mA | VDD12A + VDD12D | 116 |
| Energy Detect Mode (EDPD) 3.3V Current | IEDM1 | | 21 | | mA | VDDAT + VDDIO | 116 |
| 100BT EEE Mode at Idle 3.3V Current | IEEE1 | | 22.5 | | mA | VDDAT + VDDIO | 116 |
## CAD (KiCad official)
- Symbol: `KSZ8795CLXCC`
- Footprint: `Package_QFP:LQFP-80_10x10mm_P0.4mm`
- 3D model: LQFP-80(10x10) (KiCad packages3D, STEP)
- 3D model files: `ksz8795clxcc-etched.step` / `ksz8795clxcc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ksz8795clxcc.step` / `ksz8795clxcc.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](docs/ksz8795clxcc-datasheet.pdf) (135 pp, sha256 `d02372cc17b71e8b`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/ksz8795clxcc-datasheet.pdf)