EEPROM Serial-SPI 64K-bit 8K x 8 2.5V/3.3V/5V 8-Pin PDIP

Integrated Circuits (ICs)

25AA640-I/P

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Microchip Technology

EEPROM SERIAL-SPI 64K-BIT 8K X 8 2.5V/3.3V/5V 8-PIN PDIP

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DocumentsDatasheet Product Change Notice EN

Integrated Circuits (ICs)

25AA640-I/P

Active

Microchip Technology

EEPROM SERIAL-SPI 64K-BIT 8K X 8 2.5V/3.3V/5V 8-PIN PDIP

Deep-Dive with AI

DocumentsDatasheet Product Change Notice EN

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	25AA640-I/P

Memory Format	EEPROM
Memory Interface	SPI
Memory Organization	8 K
Memory Size	64 Kbit
Memory Type	Non-Volatile
Mounting Type	Through Hole
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	0.3 in
Package / Case	8-DIP
Package / Case	7.62 mm
Supplier Device Package	8-PDIP
Technology	EEPROM
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	1.8 V
Write Cycle Time - Word, Page	5 ms

25AA640AX Series

64Kb 1.8V SPI Serial EEPROM

Part	Memory Interface	Technology	Mounting Type	Memory Organization	Memory Type	Clock Frequency	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Memory Format	Write Cycle Time - Word, Page	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Package / Case [custom]	Package / Case [custom]	Memory Size	Package / Case	Grade	Qualification	Package / Case	Package / Case [y]	Package / Case [x]
Microchip Technology 25AA640AX-I/ST	SPI	EEPROM	Surface Mount	8 K	Non-Volatile	10 MHz	8-TSSOP	85 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-TSSOP	0.173 "	4.4 mm	64 Kbit
Microchip Technology 25AA640AT-I/ST	SPI	EEPROM	Surface Mount	8 K	Non-Volatile	10 MHz	8-TSSOP	85 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-TSSOP	0.173 "	4.4 mm	64 Kbit
Microchip Technology 25AA640AT-E/ST	SPI	EEPROM	Surface Mount	8 K	Non-Volatile	10 MHz	8-TSSOP	125 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-TSSOP	0.173 "	4.4 mm	64 Kbit
Microchip Technology 25AA640AXT-I/ST	SPI	EEPROM	Surface Mount	8 K	Non-Volatile	10 MHz	8-TSSOP	85 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-TSSOP	0.173 "	4.4 mm	64 Kbit
Microchip Technology 25AA640AT-I/MS16KVAO	SPI	EEPROM	Surface Mount	8 K	Non-Volatile	10 MHz	8-MSOP	85 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-MSOP 8-TSSOP	0.118 in		64 Kbit	3 mm	Automotive	AEC-Q100
Microchip Technology 25AA640A-I/MS	SPI	EEPROM	Surface Mount	8 K	Non-Volatile	10 MHz	8-MSOP	85 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-MSOP 8-TSSOP	0.118 in		64 Kbit	3 mm
Microchip Technology 25AA640-I/P	SPI	EEPROM	Through Hole	8 K	Non-Volatile		8-PDIP	85 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-DIP			64 Kbit	0.3 in			7.62 mm
Microchip Technology 25AA640A-I/SN	SPI	EEPROM	Surface Mount	8 K	Non-Volatile	10 MHz	8-SOIC	85 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-SOIC			64 Kbit					3.9 mm	0.154 in
Microchip Technology 25AA640AT-E/MNY	SPI	EEPROM	Surface Mount	8 K	Non-Volatile	10 MHz	8-TDFN (2x3)	125 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-WFDFN Exposed Pad			64 Kbit
Microchip Technology 25AA640-I/SN	SPI	EEPROM	Surface Mount	8 K	Non-Volatile		8-SOIC	85 °C	-40 °C	EEPROM	5 ms	1.8 V	5.5 V	8-SOIC			64 Kbit					3.9 mm	0.154 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.08
		25	$ 1.04
		100	$ 1.00
Newark	Each	120	$ 1.02
		540	$ 1.01

Description

General part information

25AA640AX Series

The Microchip 25AA640A is a 64 Kb Serial EEPROM utilizing the

industry standard Serial Peripheral Interface (SPI) compatible serial bus. The

device is organized as one block of 8192 x 8-bit and is optimized for use in consumer electronics, industrial, medical,