AT24C08C-SSHM-T from Microchip Tech, 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	NC	unconnected	No connect. Pin is not internally bonded and may be left floating or tied to any potential within the absolute maximum ratings.
2	NC	unconnected	No connect on the AT24C08C. This pin is the device address input A1 on the sibling AT24C04C but is not used on the AT24C08C (device addressing uses page-select bits from the memory address instead).
3	A2	input	Device address input. Hard-wire to GND or VCC to set slave-address bit A2 so up to two AT24C08C devices can share one I2C bus. If left floating the pin is weakly pulled to GND internally; Microchip recommends driving it to a known state. External pull-up should be <=10 kOhm.
4	GND	power_in	Ground reference for the power supply. Connect to the system ground.
5	SDA	bidirectional	I2C serial data. Open-drain bidirectional line used to transfer data to and from the device. Requires an external pull-up resistor (<=10 kOhm) to VCC and may be wire-ORed with other open-drain devices on the same bus.
6	SCL	input	I2C serial clock input. Provides the clock to the device: SDA is latched on the rising edge and output data is clocked out on the falling edge. Must be forced high when the bus is idle or pulled high through an external pull-up resistor.
7	WP	input	Write-Protect input. Tie to GND for normal write operation; tie to VCC to inhibit all write operations to the full memory array. Internally pulled weakly to GND if left floating; Microchip recommends driving to a known state with a pull-up <=10 kOhm if used.
8	VCC	power_in	Device power supply, 1.7V to 5.5V (absolute maximum 6.25V). Bypass locally with a decoupling capacitor to GND.

Key specifications

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

Ordering variants

AT24C08C-SSHM-T
AT24C08C-SSHM-TPU
AT24C08C-SSHM-TXHM-T
AT24C08C-SSHM-TMAHM-T
AT24C08C-SSHM-TDHM-T
AT24C08C-SSHM-TCS-B

CAD (KiCad official)

Symbol: AT24C08C-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
`at24c08c-sshm-t.step`	122 KB	You want the bare part, or you mark your own boards.
`at24c08c-sshm-t-etched.step`	2.7 MB	You want the part with `AT24C08C-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: 670 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 Tech datasheet (46 pp, sha256 3f7bf35466fd0295, 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