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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206

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M95640-DRDW3TP

STMicroelectronics · EEPROM · TSSOP-8

M95640-DRDW3TP from STMicroelectronics, in a TSSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	S	input	Chip Select: driving S low selects the device and driving it high deselects it and puts Q in high impedance; after power-up the device is not selected until a falling edge is detected on S.
2	Q	tri_state	Serial data output: data is shifted out on the falling edge of C, MSB first, and Q is high impedance at all other times; Q voltage is limited to -0.50 V to VCC+0.6 V and DC output current to 5 mA (IOL and IOH).
3	W	input	Write Protect: used together with the SRWD bit to write-protect the Status Register, and must be driven high or low as appropriate; if SRWD is 1 and W is low, the Status Register cannot be written.
4	VSS	power_in	Ground: the reference for all signals, including the VCC supply voltage.
5	D	input	Serial data input: receives instructions, addresses and data to be written, latched on the rising edge of C, MSB first; input voltage range is -0.50 V to 6.5 V.
6	C	input	Serial clock: synchronizes the serial interface, with D latched on its rising edge and Q changing after its falling edge; maximum clock frequency is 20 MHz for VCC of 4.5 V or higher.
7	HOLD	input	Hold: pauses serial communication without deselecting the device; Hold mode starts when HOLD is driven low while C is low and ends when HOLD is driven high and C is or becomes low.
8	VCC	power_in	Supply voltage: for voltage range R the operating range is 1.7 V to 5.5 V, and a decoupling capacitor of about 10 nF to 100 nF should be placed close to the VCC/VSS pins.

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	TSSOP-8
Category	Memory
Pins	8

CAD (KiCad official)

Symbol: M95640-DRDW3TP
Footprint: Package_SO:TSSOP-8_3x3mm_P0.65mm
3D model: TSSOP-8 (KiCad packages3D, STEP)
3D model files: m95640-drdw3tp-etched.step / m95640-drdw3tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); m95640-drdw3tp.step / m95640-drdw3tp.glb are the bare package body.

Provenance

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

Datasheet: STMicroelectronics datasheet (44 pp, sha256 61948cd2b79f9222, retrieved 2026-10-08, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF