component
KSZ8795CLXIC
Public Made by Adomby adom
Microchip Tech Ethernet ICs, LQFP-80(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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KSZ8795CLXIC
Microchip Tech · Ethernet ICs · LQFP-80(10x10)
KSZ8795CLXIC 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; needs an external pull-up resistor when in use. |
| 24 | LED3_1 | bidirectional | Port 3 LED indicator 1 (input with pull-up during reset); strap selects Port 5 GMAC5 mode with LED3_0: 00 MII, 01 RMII, 10 GMII, 11 RGMII (default). |
| 25 | LED3_0 | bidirectional | Port 3 LED indicator 0 (input with pull-up during reset); strap bit with LED3_1 for Port 5 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 (input with pull-up during reset, output otherwise). |
| 29 | TXEN5/TXD5_CTL | input | Port 5 transmit enable in GMII/MII/RMII; transmit data control in RGMII (internal pull-down). |
| 30 | TXD5_0 | input | Port 5 switch transmit bit 0 in GMII/RGMII/MII/RMII (internal pull-down). |
| 31 | LED4_0 | bidirectional | Port 4 LED indicator 0 (input with pull-up during reset, output otherwise). |
| 32 | TXD5_1 | input | Port 5 switch transmit bit 1 in 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 in GMII/RGMII/MII; no connection in RMII. |
| 36 | TXD5_3 | input | Port 5 switch transmit bit 3 in GMII/RGMII/MII; no connection in RMII. |
| 37 | TXER5 | input | Port 5 switch transmit error in GMII/MII; no connection in RGMII/RMII. |
| 38 | TXD5_4 | input | Port 5 switch transmit bit 4 in GMII; no connection in RGMII/MII/RMII. |
| 39 | TXD5_5 | input | Port 5 switch transmit bit 5 in GMII; no connection in RGMII/MII/RMII. |
| 40 | TXD5_6 | input | Port 5 switch transmit bit 6 in GMII; no connection in RGMII/MII/RMII. |
| 41 | TXD5_7 | input | Port 5 switch transmit bit 7 in GMII; 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 reference output, GMII/RGMII 125 MHz receive clock output. |
| 45 | RXD5_0 | bidirectional | Port 5 switch receive bit 0 in GMII/RGMII/MII/RMII (pull-down input during reset, output otherwise). |
| 46 | RXD5_1 | bidirectional | Port 5 switch receive bit 1 in GMII/RGMII/MII/RMII (pull-down input 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 in GMII/RGMII/MII; no connection in RMII. |
| 50 | RXD5_3 | bidirectional | Port 5 switch receive bit 3 in GMII/RGMII/MII; no connection in RMII. |
| 51 | RXDV5/CRSDV5/RXD5_CTL | bidirectional | Port 5 receive data valid (GMII/MII), carrier sense/receive data valid (RMII), or receive data control (RGMII). |
| 52 | RXER5 | bidirectional | Port 5 switch receive error in GMII/MII; no connection in RGMII/RMII. |
| 53 | CRS5 | bidirectional | Port 5 carrier sense in GMII/MII; no connection in RGMII/RMII. |
| 54 | COL5 | bidirectional | Port 5 collision detect in GMII/MII; no connection in RGMII/RMII. |
| 55 | REFCLKO | bidirectional | 25 MHz clock output option, controlled by strap pin LED2_0 and Global Register 11 bit 1; enabled by default, better disabled if unused. |
| 56 | PME_N | bidirectional | Power management event signal indicating a Wake-on-LAN event; polarity programmable, default active-low. |
| 57 | RXD5_4 | bidirectional | Port 5 switch receive bit 4 in GMII; no connection in RGMII/MII/RMII. |
| 58 | RXD5_5 | bidirectional | Port 5 switch receive bit 5 in GMII; no connection in RGMII/MII/RMII. |
| 59 | RXD5_6 | bidirectional | Port 5 switch receive bit 6 in GMII; no connection in RGMII/MII/RMII. |
| 60 | RXD5_7 | bidirectional | Port 5 switch receive bit 7 in GMII; 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 (PU, default) or PHY (PD) mode, and RMII clock mode (PU) or normal mode (PD). |
| 63 | LED2_0 | bidirectional | Port 2 LED indicator 0; strap enables REFCLKO 25 MHz output (PU, default) or disables it (PD). |
| 64 | LED1_1 | bidirectional | Port 1 LED indicator 1; strap selects PLL clock source: PU uses 25 MHz XI/XO, PD uses external TXC5 clock in Port 5 RMII normal mode. |
| 65 | LED1_0 | bidirectional | Port 1 LED indicator 0; strap selects 1Gbps (PU, default) or 10/100Mbps (PD) in GMII/RGMII. |
| 66 | SPIQ | bidirectional | SPI serial data output in slave mode; strap selects SPI slave mode (PD) or MDC/MDIO mode (PU), external resistor required. |
| 67 | SCL_MDC | input | Clock input for SPI (up to 50 MHz) or MDC/MDIO interface (up to 25 MHz). |
| 68 | SDA_MDIO | bidirectional | Serial data input in SPI slave mode, or MDC/MDIO data input/output. |
| 69 | SPIS_N | input | Active-low SPI slave 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. |
| 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 | Transmit output current set; connect to GND through a 12.4 kΩ 1% resistor. |
| 78 | GNDA | power_in | Analog ground. |
| 79 | XI | input | Crystal/oscillator input for 25 MHz crystal or 3.3V oscillator, tolerance ±50 ppm. |
| 80 | XO | output | Crystal clock output, connected to one end of the 25 MHz crystal. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | LQFP-80(10x10) |
| Category | Interface ICs |
| 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 (abs max) | -0.5 | 1.8 | V | 112 | |||
| Supply Voltage VDDAT, VDDIO (abs max) | -0.5 | 4 | V | 112 | |||
| Input Voltage (abs max) | -0.5 | 4 | V | 112 | |||
| Output Voltage (abs max) | -0.5 | 4 | V | 112 | |||
| Lead Temperature | 260 | °C | soldering, 10s | 112 | |||
| Storage Temperature | TS | -55 | 150 | °C | 112 | ||
| Maximum Junction Temperature | 125 | °C | 112 | ||||
| ESD Rating | 5 | kV | 112 | ||||
| Supply Voltage VDD12A, VDD12D | 1.14 | 1.26 | V | 112 | |||
| Supply Voltage VDDAT | 3.135 | 3.465 | V | VDDAT @ 3.3V | 112 | ||
| Supply Voltage VDDAT | 2.375 | 2.625 | V | VDDAT @ 2.5V | 112 | ||
| Supply Voltage VDDIO | 3.135 | 3.465 | V | VDDIO @ 3.3V | 112 | ||
| Supply Voltage VDDIO | 2.375 | 2.625 | V | VDDIO @ 2.5V | 112 | ||
| Supply Voltage VDDIO | 1.71 | 1.89 | V | VDDIO @ 1.8V | 112 | ||
| Ambient Temperature Commercial | TA | 0 | 70 | °C | Commercial | 112 | |
| Ambient Temperature Industrial | TA | -40 | 85 | °C | Industrial | 112 | |
| Package Thermal Resistance | ΘJA | 55.05 | °C/W | No heat spreader, air velocity 0m/s | 112 | ||
| Package Thermal Resistance | ΘJC | 25.06 | °C/W | No heat spreader, air velocity 0m/s | 112 | ||
| Input High Voltage | VIH | 2 | V | VDDIO = 3.3V | 113 | ||
| Input High Voltage | VIH | 1.8 | V | VDDIO = 2.5V | 113 | ||
| Input High Voltage | VIH | 1.3 | V | VDDIO = 1.8V | 113 | ||
| Input Low Voltage | VIL | 0.8 | V | VDDIO = 3.3V | 113 | ||
| Input Low Voltage | VIL | 0.7 | V | VDDIO = 2.5V | 113 | ||
| Input Low Voltage | VIL | 0.5 | V | VDDIO = 1.8V | 113 | ||
| Input Current (Excluding Pull-Up/Pull-Down) | IIN | 10 | µA | VIN = GND ~ VDDIO | 113 | ||
| Output High Voltage | VOH | 2.4 | V | VDDIO = 3.3V | 113 | ||
| Output High Voltage | VOH | 2 | V | VDDIO = 2.5V | 113 | ||
| Output High Voltage | VOH | 1.5 | V | VDDIO = 1.8V | 113 | ||
| Output Low Voltage | VOL | 0.4 | V | VDDIO = 3.3V | 114 | ||
| Output Low Voltage | VOL | 0.3 | V | VDDIO = 1.8V | 114 | ||
| Output Tri-State Leakage | IOZ | 10 | µA | VIN = GND ~ VDDIO | 114 | ||
| 100BASE-TX Peak Differential Output Voltage | VO | 0.95 | 1.05 | V | 100Ω termination on the differential output | 114 | |
| 100BASE-TX Output Voltage Imbalance | VIMB | 2 | % | 100Ω termination on the differential output | 114 | ||
| 100BASE-TX Rise/Fall Time | tr/tf | 3 | 5 | ns | 114 | ||
| 100BASE-TX Rise/Fall Time Imbalance | 0 | 0.5 | ns | 114 | |||
| 100BASE-TX Duty Cycle Distortion | 0.5 | ns | printed as ±0.5 | 114 | |||
| 100BASE-TX Overshoot | 5 | % | 114 | ||||
| 100BASE-TX Output Jitters | 0 | 0.75 | 1.4 | ns | Peak-to-Peak | 114 | |
| 10BASE-T Squelch Threshold | VSQ | 300 | 400 | 585 | mV | 5 MHz square wave | 114 |
| 10BASE-T Peak Differential Output Voltage | VP | 2.2 | 2.5 | 2.8 | V | 100Ω termination on the differential output; VDDAT = 3.3V | 114 |
| 10BASE-T Output Jitters | 1.4 | 3.5 | ns | Peak-to-Peak; VDDAT = 3.3V | 114 | ||
| 10BASE-T Rise/Fall Times | 28 | 30 | ns | VDDAT = 3.3V | 114 | ||
| I/O Pin Effective Pull-Up Resistance | R1.8PU | 75 | 95 | 135 | kΩ | VDDIO = 1.8V | 114 |
| I/O Pin Effective Pull-Down Resistance | R1.8PD | 53 | 68 | 120 | kΩ | VDDIO = 1.8V | 114 |
| I/O Pin Effective Pull-Up Resistance | R2.5PU | 46 | 60 | 93 | kΩ | VDDIO = 2.5V | 114 |
| I/O Pin Effective Pull-Down Resistance | R2.5PD | 46 | 59 | 103 | kΩ | VDDIO = 2.5V | 114 |
| I/O Pin Effective Pull-Up Resistance | R3.3PU | 35 | 45 | 65 | kΩ | VDDIO = 3.3V | 114 |
| I/O Pin Effective Pull-Down Resistance | R3.3PD | 37 | 46 | 74 | kΩ | VDDIO = 3.3V | 114 |
| GMII Set-Up Time | tIS | 1.2 | ns | 115 | |||
| GMII Hold Time | tIH | 1.2 | ns | 115 | |||
| GMII Output Delay Respect to Clock Falling Edge | tOD | 1 | ns | 115 | |||
| GMII Clock Cycle | 8 | ns | 115 | ||||
| 100BASE-TX Transmitter 3.3V Analog Current | IDX | 142 | mA | 100BASE-TX, all ports 100% utilization; VDDAT | 113 | ||
| 100BASE-TX 1.2V Current | ID12 | 35 | mA | 100BASE-TX, all ports 100% utilization; VDD12A + VDD12D | 113 | ||
| 100BASE-TX Digital IO 3.3V Current | IDDIO | 15 | mA | 100BASE-TX, all ports 100% utilization; VDDIO | 113 | ||
| Soft Power-Down Mode 3.3V Current | ISPDM1 | 0.07 | mA | VDDAT + VDDIO | 113 |
CAD (KiCad official)
- Symbol:
KSZ8795CLXIC - Footprint:
Package_QFP:LQFP-80_10x10mm_P0.4mm - 3D model: LQFP-80(10x10) (KiCad packages3D, STEP)
- 3D model files:
ksz8795clxic-etched.step/ksz8795clxic-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ksz8795clxic.step/ksz8795clxic.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (132 pp, sha256
b0e475469d5538b8, retrieved 2026-10-23, 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).