AT24C04C-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	NC	unconnected	No Connect. On the AT24C04C the A0 line is not used for addressing; this pin is a no-connect and may be tied to GND.
2	A1	input	Hardware address input A1 (used on AT24C04C only, allows up to four 4K devices on one I2C bus). Static CMOS input; tie to VCC or GND. On the AT24C08C variant this pin is a no-connect.
3	A2	input	Hardware address input A2. Static CMOS input, tied to VCC or GND to set the slave address of the device for multi-device bus systems.
4	GND	power_in	Ground reference for the device (0 V).
5	SDA	bidirectional	I2C serial data. Bidirectional, open-drain; requires an external pull-up resistor. May be wire-ORed with other open-drain/open-collector devices on the bus.
6	SCL	input	I2C serial clock input. Positive edge clocks data into and negative edge clocks data out of the device. Up to 400 kHz at 1.7 V, up to 1 MHz at 2.5/2.7/5.0 V.
7	WP	input	Write Protect. Active-high hardware write protect: tie to VCC to protect the entire array, tie to GND for normal read/write operations.
8	VCC	power_in	Power supply input, 1.7 V to 5.5 V. Typical ICC = 0.4 mA read / 2.0 mA write at 5.0 V, 100 kHz; standby currents 1.0 uA (1.7 V) / 6.0 uA (5.5 V).

Key specifications

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

Ordering variants

AT24C04C-SSHM-T
AT24C04C-SSHM-TPU
AT24C04C-SSHM-TXHM
AT24C04C-SSHM-TMAHM
AT24C04C-SSHM-TDW
AT24C04C-SSHM-TCM

CAD (KiCad official)

Symbol: AT24C04C-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
`at24c04c-sshm-t.step`	122 KB	You want the bare part, or you mark your own boards.
`at24c04c-sshm-t-etched.step`	2.5 MB	You want the part with `AT24C04C-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: 633 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 (24 pp, sha256 fddea59c963fc82a, 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