24AA64T-I 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	Chip address input bit 0. Compared with the corresponding bit in the slave address to select the device. Must be hard-wired to VCC or VSS (logic 0 or 1). Allows up to 8 devices on the same bus.
2	A1	input	Chip address input bit 1. Compared with the corresponding bit in the slave address to select the device. Must be tied to VCC or VSS.
3	A2	input	Chip address input bit 2. Compared with the corresponding bit in the slave address to select the device. Must be tied to VCC or VSS.
4	VSS	power_in	Ground reference (0 V) for the device.
5	SDA	bidirectional	Serial address/data bidirectional line for the I2C interface. Open-drain output; requires an external pull-up to VCC (typical 10 kOhm at 100 kHz, 2 kOhm at 400 kHz). Data changes only during SCL low.
6	SCL	input	Serial clock input used to synchronize data transfer to and from the device. Supports 100 kHz and 400 kHz (400 kHz for VCC >= 2.5V, 100 kHz for VCC < 2.5V).
7	WP	input	Hardware write-protect input. Tie to VSS to enable writes; tie to VCC to inhibit write operations (reads are unaffected).
8	VCC	power_in	Positive supply voltage, +1.7V to +5.5V. Absolute maximum 6.5V. Operating current 3 mA max (write), standby 1 uA typical.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

24AA64T-IP
24AA64T-ISN
24AA64T-ISM
24AA64T-IST
24AA64T-IMS
24AA64T-IMNY
24AA64T-IMUY
24AA64T-IX/ST
24AA64T-IOT

CAD (KiCad official)

Symbol: 24AA64T-I
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Microchip datasheet (44 pp, sha256 dc1dcd92e1d528e6, 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