component
AT24C128C-XHM-T
Public Made by Adomby adom
Microchip Tech EEPROM, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
AT24C128C-XHM-T
Microchip Tech · EEPROM · TSSOP-8
AT24C128C-XHM-T 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 to GND, and Microchip recommends tying it to a known state with a pull-up 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 to GND, and Microchip recommends tying it to a known state with a pull-up 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 to GND, and Microchip recommends tying it to a known state with a pull-up 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: SDA data is latched on the rising edge of SCL and clocked out on the falling edge, and SCL must be forced high when the bus is idle or pulled high with an external resistor. |
| 7 | WP | input | Write-protect input: connected to GND allows normal write operations, connected to VCC inhibits writes to the full array, and it is internally pulled down to GND if left floating. |
| 8 | VCC | power_in | Device power supply pin; operation at invalid VCC voltages may produce spurious results and should not be attempted. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TSSOP-8 |
| Category | Memory |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
AT24C128C-XHM-T - Footprint:
Package_SO:TSSOP-8_3x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
at24c128c-xhm-t-etched.step/at24c128c-xhm-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at24c128c-xhm-t.step/at24c128c-xhm-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (39 pp, sha256
d583c8741b257ee2, retrieved 2026-10-09, tier: lcsc) - 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).
# AT24C128C-XHM-T
**Microchip Tech** · EEPROM · TSSOP-8
AT24C128C-XHM-T 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 to GND, and Microchip recommends tying it to a known state with a pull-up 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 to GND, and Microchip recommends tying it to a known state with a pull-up 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 to GND, and Microchip recommends tying it to a known state with a pull-up 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: SDA data is latched on the rising edge of SCL and clocked out on the falling edge, and SCL must be forced high when the bus is idle or pulled high with an external resistor. |
| 7 | WP | input | Write-protect input: connected to GND allows normal write operations, connected to VCC inhibits writes to the full array, and it is internally pulled down to GND if left floating. |
| 8 | VCC | power_in | Device power supply pin; operation at invalid VCC voltages may produce spurious results and should not be attempted. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TSSOP-8 |
| Category | Memory |
| Pins | 8 |
## CAD (KiCad official)
- Symbol: `AT24C128C-XHM-T`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `at24c128c-xhm-t-etched.step` / `at24c128c-xhm-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `at24c128c-xhm-t.step` / `at24c128c-xhm-t.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918500878929920) (39 pp, sha256 `d583c8741b257ee2`, retrieved 2026-10-09, tier: lcsc)
- **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/at24c128c-xhm-t-datasheet.pdf)