AT24C32D-SSHM-T from Microchip, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	A0	input	Device address input bit 0. Hardwired high or low to set the lower bit of the 3-bit hardware slave address, allowing up to eight AT24C32D devices on the same 2-wire bus. Internally pulled to GND if left floating and VCC-plane coupling is <3 pF; Atmel recommends tying to GND when coupling is >3 pF.
2	A1	input	Device address input bit 1. Hardwired to set the middle bit of the slave address. Same floating-behavior notes as A0 (internal pull-down to GND when board-VCC coupling is <3 pF).
3	A2	input	Device address input bit 2. Hardwired to set the upper bit of the slave address. Same floating-behavior notes as A0/A1.
4	GND	power_in	Ground reference (0 V) for supply and all logic signals.
5	SDA	bidirectional	Serial data line for the 2-wire (I2C-compatible) interface. Open-drain output; requires an external pull-up resistor to VCC and may be wire-ORed with other open-drain devices. Input capacitance up to 8 pF.
6	SCL	input	Serial clock input for the 2-wire interface. Positive edges clock data into the device and negative edges clock data out. Supports up to 400 kHz at 1.7V VCC and up to 1 MHz at 5.0V VCC; Schmitt-trigger and noise-filtered input.
7	WP	input	Write Protect input. Tie to GND for normal write operation; tie to VCC to inhibit all writes to the EEPROM array (hardware write protection). Internally pulled to GND if left floating and board-VCC coupling is <3 pF; Atmel recommends tying to GND when coupling is >3 pF.
8	VCC	power_in	Positive supply, 1.7 V to 5.5 V. Standby current 1.0 uA typ @1.7V (6.0 uA @5.5V); read current 0.4 mA typ and write current 2.0 mA typ at VCC=5.0V, 400 kHz.

Key specifications

Parameter	Value
Manufacturer	Microchip
Package	SOIC-8
Category	Memory
Pins	8

Ordering variants

AT24C32D-SSHM-T
AT24C32D-SSHM-TSSHM-B
AT24C32D-SSHM-TXHM-T
AT24C32D-SSHM-TXHM-B
AT24C32D-SSHM-TMAHM-T
AT24C32D-SSHM-TMEHM-T
AT24C32D-SSHM-TSTUM-T
AT24C32D-SSHM-TCUM-T

CAD (KiCad official)

Symbol: AT24C32D-SSHM-T
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`at24c32d-sshm-t.step`	122 KB	You want the bare part, or you mark your own boards.
`at24c32d-sshm-t-etched.step`	2.6 MB	You want the part with `AT24C32D-SSHM-T` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 645 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Microchip datasheet (26 pp, sha256 76d3077e3392f9ed, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF