Specification	25LC040AT-E/OT16KVAO

Clock Frequency	10 MHz
Grade	Automotive
Memory Format	EEPROM
Memory Interface	SPI
Memory Organization [custom]	512
Memory Organization [custom]	8
Memory Size	4 Kbit
Memory Type	Non-Volatile
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	SOT-23-6
Qualification	AEC-Q100
Supplier Device Package	SOT-23-6
Technology	EEPROM
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.5 V
Write Cycle Time - Word, Page	5 ms

25LC040A Series

4Kb 2.5V SPI Serial EEPROM

Part	Write Cycle Time - Word, Page	Mounting Type	Package / Case	Package / Case	Package / Case	Technology	Memory Interface	Operating Temperature [Max]	Operating Temperature [Min]	Memory Format	Clock Frequency	Memory Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Memory Size	Memory Organization [custom]	Memory Organization [custom]	Supplier Device Package	Qualification	Grade	Package / Case [custom]	Package / Case [custom]	Package / Case [y]	Package / Case [x]	Operating Temperature [Max]	Operating Temperature [Min]
Microchip Technology 25LC040/P	5 ms	Through Hole	0.3 in	8-DIP	7.62 mm	EEPROM	SPI	70 °C	0 °C	EEPROM	2 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	8-PDIP
Microchip Technology 25LC040AT-E/OT16KVAO	5 ms	Surface Mount		SOT-23-6		EEPROM	SPI	125 °C	-40 °C	EEPROM	10 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	SOT-23-6	AEC-Q100	Automotive
Microchip Technology 25LC040A-I/P	5 ms	Through Hole	0.3 in	8-DIP	7.62 mm	EEPROM	SPI	85 °C	-40 °C	EEPROM	10 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	8-PDIP
Microchip Technology 25LC040AT-E/ST	5 ms	Surface Mount		8-TSSOP		EEPROM	SPI	125 °C	-40 °C	EEPROM	10 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	8-TSSOP			0.173 "	4.4 mm
Microchip Technology 25LC040XT/ST	5 ms	Surface Mount		8-TSSOP		EEPROM	SPI	70 °C	0 °C	EEPROM	2 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	8-TSSOP			0.173 "	4.4 mm
Microchip Technology 25LC040AT-I/ST	5 ms	Surface Mount		8-TSSOP		EEPROM	SPI	85 °C	-40 °C	EEPROM	10 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	8-TSSOP			0.173 "	4.4 mm
Microchip Technology 25LC040A-M/SN	5 ms	Surface Mount		8-SOIC		EEPROM	SPI			EEPROM	10 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	8-SOIC					3.9 mm	0.154 in	125 °C	-55 °C
Microchip Technology 25LC040A-I/ST	5 ms	Surface Mount		8-TSSOP		EEPROM	SPI	85 °C	-40 °C	EEPROM	10 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	8-TSSOP			0.173 "	4.4 mm
Microchip Technology 25LC040AX-I/ST	5 ms	Surface Mount		8-TSSOP		EEPROM	SPI	85 °C	-40 °C	EEPROM	10 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	8-TSSOP			0.173 "	4.4 mm
Microchip Technology 25LC040T/SN	5 ms	Surface Mount		8-SOIC		EEPROM	SPI	70 °C	0 °C	EEPROM	2 MHz	Non-Volatile	2.5 V	5.5 V	4 Kbit	512	8	8-SOIC					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	$

Microchip Direct	T/R	1	$ 0.70
		25	$ 0.67
		100	$ 0.64
		1000	$ 0.61
		5000	$ 0.58

Description

General part information

25LC040A Series

The Microchip 25LC040A is a 4 Kb Serial EEPROM utilizing the

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

device is organized as one block of 512 x 8-bit and is optimized for use in consumer electronics, industrial, medical,

Documents

Technical documentation and resources

Datasheet

25LC010A/25LC020A/25LC040A 1-Kbit to 4-Kbit Serial EEPROM High Temp Family Data Sheet

Data Sheets

Interfacing SPI? Serial EEPROMs to PIC16 Devices

Application Notes

25AA040A/25LC040A 4-Kbit SPI Bus Serial EEPROM

Data Sheets

Using the C18 Compiler and the MSSP to Interface SPI? EEPROMs with PIC18 Devices

Application Notes

Using the MSSP Module to Interface SPI? Serial EEPROMs with PIC18 Devices

Application Notes

Interfacing SPI? Serial EEPROMs to Microchip PICmicro® Microcontrollers

Application Notes