component
AT24C64D-XHM-B
Public Made by Adomby adom
Microchip Tech Pre-ordered Chips, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AT24C64D-XHM-B
Microchip Tech · Pre-ordered Chips · TSSOP-8
AT24C64D-XHM-B from Microchip Tech, in a TSSOP-8. 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 | A0 | input | Device address input hard-wired to GND or VCC; if left floating it is internally pulled down, and Microchip recommends connecting it to a known state with any pull-up resistor of 10 kΩ or less. |
| 2 | A1 | input | Device address input hard-wired to GND or VCC; if left floating it is internally pulled down, and Microchip recommends connecting it to a known state with any pull-up resistor of 10 kΩ or less. |
| 3 | A2 | input | Device address input hard-wired to GND or VCC; if left floating it is internally pulled down, and Microchip recommends connecting it to a known state with any pull-up resistor of 10 kΩ or less. |
| 4 | GND | power_in | Ground reference for the power supply, which should be connected to the system ground. |
| 5 | SDA | bidirectional | Open-drain serial data input/output that must be pulled high with an external pull-up resistor not exceeding 10 kΩ and may be wire-ORed with other open-drain devices on the bus. |
| 6 | SCL | input | Serial clock input that latches SDA input data on its rising edge and clocks SDA output data on its falling edge, and must be forced high or pulled high when the bus is idle. |
| 7 | WP | input | Write-protect input: connected to GND allows normal writes, connected to VCC inhibits writes to the full array, and if left floating it is internally pulled down to GND. |
| 8 | VCC | power_in | Device power supply pin; operation at invalid VCC voltages may produce spurious results and should not be attempted, with the device specified from 1.7V to 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TSSOP-8 |
| Category | Interface ICs |
| Pins | 8 |
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 | VCC1 | 1.7 | 5.5 | V | 9 | ||
| VCC Power Supply, Low-Voltage Grade | VCC | 1.7 | 5.5 | V | 9 | ||
| Operating Temperature (Case), Industrial Range | -40 | 85 | °C | 9 | |||
| Supply Current, Read | ICC1 | 0.4 | 1 | mA | VCC = 5.0V, Read at 400 kHz | 9 | |
| Supply Current, Write | ICC2 | 2 | 3 | mA | VCC = 5.0V, Write at 400 kHz | 9 | |
| Standby Current | ISB1 | 1 | μA | VCC = 1.7V, VIN = VCC or GND | 9 | ||
| Standby Current | ISB1 | 6 | μA | VCC = 5.0V, VIN = VCC or GND | 9 | ||
| Input Leakage Current | ILI | 0.1 | 3 | μA | VIN = VCC or GND; VCC = 5.0V | 9 | |
| Output Leakage Current | ILO | 0.05 | 3 | μA | VOUT = VCC or GND; VCC = 5.0V | 9 | |
| Input Low Level | VIL | -0.6 | V | 9 | |||
| Output Low Level | VOL1 | 0.2 | V | VCC = 1.7V, IOL = 0.15 mA | 9 | ||
| Output Low Level | VOL2 | 0.4 | V | VCC = 3.0V, IOL = 2.1 mA | 9 | ||
| Clock Frequency, SCL | fSCL | 400 | kHz | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Clock Pulse Width Low | tLOW | 1300 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Clock Pulse Width High | tHIGH | 600 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Noise Suppression Time | tI | 100 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Clock Low to Data Out Valid | tAA | 50 | 900 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | |
| Bus Free Time between Stop and Start | tBUF | 1300 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Start Hold Time | tHD.STA | 600 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Start Set-up Time | tSU.STA | 600 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Data In Hold Time | tHD.DAT | 0 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Data In Set-up Time | tSU.DAT | 100 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Inputs Rise Time | tR | 300 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Inputs Fall Time | tF | 300 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Stop Set-up Time | tSU.STO | 600 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Data Out Hold Time | tDH | 50 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Write Cycle Time | tWR | 5 | ms | Fast Mode, Vcc = 1.7V to 5.5V | 10 | ||
| Time required after VCC is stable before the device can accept commands | tPUP | 100 | µs | 11 | |||
| Power-on Reset Threshold Voltage | VPOR | 1.5 | V | 11 | |||
| Minimum time at VCC = 0V between power cycles | tPOFF | 500 | ms | 11 | |||
| Input/Output Capacitance (SDA) | CI/O | 8 | pF | VI/O = 0V | 11 | ||
| Input Capacitance (A0, A1, A2 and SCL) | CIN | 6 | pF | VIN = 0V | 12 | ||
| Write Endurance | 1e+06 | Write Cycles | TA = 25°C, VCC = 3.3V, Page Write mode | 12 | |||
| Data Retention | 100 | Years | TA = 55°C | 12 | |||
| Temperature under bias | -55 | 125 | °C | 9 | |||
| Storage temperature | -65 | 150 | °C | 9 | |||
| VCC | VCC | 6.25 | V | 9 | |||
| Voltage on any pin with respect to ground | -1 | 7 | V | 9 | |||
| DC output current | 5 | mA | 9 | ||||
| ESD protection | 4 | kV | 9 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | 8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC] © 2020 Microchip Technology Inc. | 24 |
CAD (KiCad official)
- Symbol:
AT24C64D-XHM-B - Footprint:
Package_SO:TSSOP-8_4.4x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
at24c64d-xhm-b-etched.step/at24c64d-xhm-b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at24c64d-xhm-b.step/at24c64d-xhm-b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (39 pp, sha256
d9d32bb1ea089470, retrieved 2026-11-06, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).
# AT24C64D-XHM-B
**Microchip Tech** · Pre-ordered Chips · TSSOP-8
AT24C64D-XHM-B from Microchip Tech, in a TSSOP-8. 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 | A0 | input | Device address input hard-wired to GND or VCC; if left floating it is internally pulled down, and Microchip recommends connecting it to a known state with any pull-up resistor of 10 kΩ or less. |
| 2 | A1 | input | Device address input hard-wired to GND or VCC; if left floating it is internally pulled down, and Microchip recommends connecting it to a known state with any pull-up resistor of 10 kΩ or less. |
| 3 | A2 | input | Device address input hard-wired to GND or VCC; if left floating it is internally pulled down, and Microchip recommends connecting it to a known state with any pull-up resistor of 10 kΩ or less. |
| 4 | GND | power_in | Ground reference for the power supply, which should be connected to the system ground. |
| 5 | SDA | bidirectional | Open-drain serial data input/output that must be pulled high with an external pull-up resistor not exceeding 10 kΩ and may be wire-ORed with other open-drain devices on the bus. |
| 6 | SCL | input | Serial clock input that latches SDA input data on its rising edge and clocks SDA output data on its falling edge, and must be forced high or pulled high when the bus is idle. |
| 7 | WP | input | Write-protect input: connected to GND allows normal writes, connected to VCC inhibits writes to the full array, and if left floating it is internally pulled down to GND. |
| 8 | VCC | power_in | Device power supply pin; operation at invalid VCC voltages may produce spurious results and should not be attempted, with the device specified from 1.7V to 5.5V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TSSOP-8 |
| Category | Interface ICs |
| Pins | 8 |
## 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 | VCC1 | 1.7 | | 5.5 | V | | 9 |
| VCC Power Supply, Low-Voltage Grade | VCC | 1.7 | | 5.5 | V | | 9 |
| Operating Temperature (Case), Industrial Range | | -40 | | 85 | °C | | 9 |
| Supply Current, Read | ICC1 | | 0.4 | 1 | mA | VCC = 5.0V, Read at 400 kHz | 9 |
| Supply Current, Write | ICC2 | | 2 | 3 | mA | VCC = 5.0V, Write at 400 kHz | 9 |
| Standby Current | ISB1 | | | 1 | μA | VCC = 1.7V, VIN = VCC or GND | 9 |
| Standby Current | ISB1 | | | 6 | μA | VCC = 5.0V, VIN = VCC or GND | 9 |
| Input Leakage Current | ILI | | 0.1 | 3 | μA | VIN = VCC or GND; VCC = 5.0V | 9 |
| Output Leakage Current | ILO | | 0.05 | 3 | μA | VOUT = VCC or GND; VCC = 5.0V | 9 |
| Input Low Level | VIL | -0.6 | | | V | | 9 |
| Output Low Level | VOL1 | | | 0.2 | V | VCC = 1.7V, IOL = 0.15 mA | 9 |
| Output Low Level | VOL2 | | | 0.4 | V | VCC = 3.0V, IOL = 2.1 mA | 9 |
| Clock Frequency, SCL | fSCL | | | 400 | kHz | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Clock Pulse Width Low | tLOW | 1300 | | | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Clock Pulse Width High | tHIGH | 600 | | | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Noise Suppression Time | tI | | | 100 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Clock Low to Data Out Valid | tAA | 50 | | 900 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Bus Free Time between Stop and Start | tBUF | 1300 | | | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Start Hold Time | tHD.STA | 600 | | | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Start Set-up Time | tSU.STA | 600 | | | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Data In Hold Time | tHD.DAT | 0 | | | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Data In Set-up Time | tSU.DAT | 100 | | | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Inputs Rise Time | tR | | | 300 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Inputs Fall Time | tF | | | 300 | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Stop Set-up Time | tSU.STO | 600 | | | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Data Out Hold Time | tDH | 50 | | | ns | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Write Cycle Time | tWR | | | 5 | ms | Fast Mode, Vcc = 1.7V to 5.5V | 10 |
| Time required after VCC is stable before the device can accept commands | tPUP | 100 | | | µs | | 11 |
| Power-on Reset Threshold Voltage | VPOR | | | 1.5 | V | | 11 |
| Minimum time at VCC = 0V between power cycles | tPOFF | 500 | | | ms | | 11 |
| Input/Output Capacitance (SDA) | CI/O | | | 8 | pF | VI/O = 0V | 11 |
| Input Capacitance (A0, A1, A2 and SCL) | CIN | | | 6 | pF | VIN = 0V | 12 |
| Write Endurance | | 1e+06 | | | Write Cycles | TA = 25°C, VCC = 3.3V, Page Write mode | 12 |
| Data Retention | | 100 | | | Years | TA = 55°C | 12 |
| Temperature under bias | | -55 | | 125 | °C | | 9 |
| Storage temperature | | -65 | | 150 | °C | | 9 |
| VCC | VCC | | | 6.25 | V | | 9 |
| Voltage on any pin with respect to ground | | -1 | | 7 | V | | 9 |
| DC output current | | | | 5 | mA | | 9 |
| ESD protection | | 4 | | | kV | | 9 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | 8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC] © 2020 Microchip Technology Inc. | 24 |
## CAD (KiCad official)
- Symbol: `AT24C64D-XHM-B`
- Footprint: `Package_SO:TSSOP-8_4.4x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `at24c64d-xhm-b-etched.step` / `at24c64d-xhm-b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `at24c64d-xhm-b.step` / `at24c64d-xhm-b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](docs/at24c64d-xhm-b-datasheet.pdf) (39 pp, sha256 `d9d32bb1ea089470`, retrieved 2026-11-06, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/at24c64d-xhm-b-datasheet.pdf)