AT93C46DN-SH-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	CS	input	Chip Select. Active high. When CS is high the device is selected; when low, DI is ignored and DO is high-impedance. Also used to end an instruction and (after being brought high following a write) to poll Ready/Busy on DO.
2	SK	input	Serial Data Clock. Synchronizes communication between the master and the EEPROM. Instructions, addresses and data on DI are latched on the rising edge of SK; DO is also clocked out on the rising edge of SK.
3	DI	input	Serial Data Input. Receives instructions, addresses and data into the device. Data is latched on the rising edge of SK.
4	DO	tri_state	Serial Data Output. Shifts read data out on the rising edge of SK following a read command. Also outputs the Ready/Busy status of the part when CS is brought high after being low for at least tCS during an erase/write cycle. High-impedance when device is not selected.
5	GND	power_in	Ground reference for the power supply. Connect to system ground.
6	ORG	input	Internal Organization select. Tie to VCC for x16 organization (64 words of 16 bits); tie to GND for x8 organization (128 words of 8 bits). If left floating an internal 1 MOhm pull-up selects x16.
7	NC	unconnected	No Connect. Leave floating or tie as convenient; no internal function.
8	VCC	power_in	Device power supply, 1.8V to 5.5V. Operating outside this range may produce spurious behavior.

Key specifications

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

Ordering variants

AT93C46DN-SH-T
AT93C46DN-SH-TN
AT93C46DN-SH-TP
AT93C46DN-SH-TY
AT93C46DN-SH-TMA
AT93C46DN-SH-TU

CAD (KiCad official)

Symbol: AT93C46DN-SH-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
`at93c46dn-sh-t.step`	122 KB	You want the bare part, or you mark your own boards.
`at93c46dn-sh-t-etched.step`	2.4 MB	You want the part with `AT93C46DN-SH-T` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 598 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 (36 pp, sha256 a48a4419bbd78dbb, 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