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AT24C128C-XHM-T

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Microchip Tech EEPROM, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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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 (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