Integrated Circuits (ICs)

25LC640AT-E/SN

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Microchip Technology

8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 3.90 MM, LEAD FREE, PLASTIC, SOIC-8

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Integrated Circuits (ICs)

25LC640AT-E/SN

Active

Microchip Technology

8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 3.90 MM, LEAD FREE, PLASTIC, SOIC-8

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	25LC640AT-E/SN

Clock Frequency	10 MHz
Memory Format	EEPROM
Memory Interface	SPI
Memory Organization	8 K
Memory Size	64 Kbit
Memory Type	Non-Volatile
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Technology	EEPROM
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.5 V
Write Cycle Time - Word, Page	5 ms

25LC640AX Series

64Kb 2.5V SPI Serial EEPROM

Part	Memory Interface	Write Cycle Time - Word, Page	Technology	Memory Format	Memory Type	Operating Temperature [Max]	Operating Temperature [Min]	Memory Size	Memory Organization	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Package / Case	Clock Frequency	Mounting Type	Package / Case [y]	Package / Case [x]	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case [custom]	Package / Case [custom]	Package / Case	Package / Case
Microchip Technology 25LC640AT-I/MNY	SPI	5 ms	EEPROM	EEPROM	Non-Volatile	85 °C	-40 °C	64 Kbit	8 K	2.5 V	5.5 V	8-TDFN (2x3)	8-WFDFN Exposed Pad	10 MHz	Surface Mount
Microchip Technology 25LC640A-M/SN	SPI	5 ms	EEPROM	EEPROM	Non-Volatile			64 Kbit	8 K	2.5 V	5.5 V	8-SOIC	8-SOIC	10 MHz	Surface Mount	3.9 mm	0.154 in	125 °C	-55 °C
Microchip Technology 25LC640A-E/ST	SPI	5 ms	EEPROM	EEPROM	Non-Volatile	125 °C	-40 °C	64 Kbit	8 K	2.5 V	5.5 V	8-TSSOP	8-TSSOP	10 MHz	Surface Mount					0.173 "	4.4 mm
Microchip Technology 25LC640AT-E/SN	SPI	5 ms	EEPROM	EEPROM	Non-Volatile	125 °C	-40 °C	64 Kbit	8 K	2.5 V	5.5 V	8-SOIC	8-SOIC	10 MHz	Surface Mount	3.9 mm	0.154 in
Microchip Technology 25LC640A-I/SN	SPI	5 ms	EEPROM	EEPROM	Non-Volatile	85 °C	-40 °C	64 Kbit	8 K	2.5 V	5.5 V	8-SOIC	8-SOIC	10 MHz	Surface Mount	3.9 mm	0.154 in
Microchip Technology 25LC640-I/P	SPI	5 ms	EEPROM	EEPROM	Non-Volatile	85 °C	-40 °C	64 Kbit	8 K	2.5 V	5.5 V	8-PDIP	8-DIP	2 MHz	Through Hole							0.3 in	7.62 mm
Microchip Technology 25LC640AXT-I/ST	SPI	5 ms	EEPROM	EEPROM	Non-Volatile	85 °C	-40 °C	64 Kbit	8 K	2.5 V	5.5 V	8-TSSOP	8-TSSOP	10 MHz	Surface Mount					0.173 "	4.4 mm
Microchip Technology 25LC640/WF	SPI	5 ms	EEPROM	EEPROM	Non-Volatile	70 °C	0 °C	64 Kbit	8 K	2.5 V	5.5 V	Die	Die	2 MHz	Surface Mount
Microchip Technology 25LC640AT-H/SN	SPI		EEPROM	EEPROM	Non-Volatile	150 °C	-40 °C	64 Kbit	8 K	2.5 V	5.5 V	8-SOIC	8-SOIC	5 MHz	Surface Mount	3.9 mm	0.154 in
Microchip Technology 25LC640/W	SPI	5 ms	EEPROM	EEPROM	Non-Volatile	70 °C	0 °C	64 Kbit	8 K	2.5 V	5.5 V	Die	Die	2 MHz	Surface Mount

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.85
		25	$ 0.82
		100	$ 0.79
	Digi-Reel®	1	$ 0.85
		25	$ 0.82
		100	$ 0.79
	Tape & Reel (TR)	3300	$ 0.79
Newark	Each (Supplied on Full Reel)	1	$ 1.26

Description

General part information

25LC640AX Series

The Microchip 25LC640A 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,

Documents

Technical documentation and resources