Specification	AT25040B-XPD-T

Clock Frequency	5 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	8-TSSOP
Package / Case [custom]	0.173 "
Package / Case [custom]	4.4 mm
Qualification	AEC-Q100
Supplier Device Package	8-TSSOP
Technology	EEPROM
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.5 V
Write Cycle Time - Word, Page	5 ms

AT25040B Series

4Kb SPI Serial EEPROM

Part	Technology	Memory Size	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	Memory Organization [custom]	Memory Organization [custom]	Mounting Type	Memory Type	Memory Interface	Write Cycle Time - Word, Page	Clock Frequency	Package / Case	Memory Format	Supplier Device Package	Package / Case [y]	Package / Case [x]	Package / Case	Package / Case	Package / Case [custom]	Package / Case [custom]	Qualification	Grade
Microchip Technology AT25040AY1-10YI-1.8	EEPROM	4 Kbit	85 °C	-40 °C	1.8 V	5.5 V	512	8	Surface Mount	Non-Volatile	SPI	5 ms	20 MHz	8-VDFN Exposed Pad	EEPROM	8-MAP (3x4.9)
Microchip Technology AT25040AN-10SU-1.8	EEPROM	4 Kbit	85 °C	-40 °C	1.8 V	5.5 V	512	8	Surface Mount	Non-Volatile	SPI	5 ms	20 MHz	8-SOIC	EEPROM	8-SOIC	3.9 mm	0.154 in
Microchip Technology AT25040-10PI-2.7	EEPROM	4 Kbit	85 °C	-40 °C	2.7 V	5.5 V	512	8	Through Hole	Non-Volatile	SPI	5 ms	3 MHz	8-DIP	EEPROM	8-PDIP			0.3 in	7.62 mm
Microchip Technology AT25040A-10PI-1.8	EEPROM	4 Kbit	85 °C	-40 °C	1.8 V	5.5 V	512	8	Through Hole	Non-Volatile	SPI	5 ms	20 MHz	8-DIP	EEPROM	8-PDIP			0.3 in	7.62 mm
Microchip Technology AT25040B-SSHL-B	EEPROM	4 Kbit	85 °C	-40 °C	1.8 V	5.5 V	512	8	Surface Mount	Non-Volatile	SPI	5 ms	20 MHz	8-SOIC	EEPROM	8-SOIC	3.9 mm	0.154 in
Microchip Technology AT25040AY6-10YH-1.8	EEPROM	4 Kbit	85 °C	-40 °C	1.8 V	5.5 V	512	8	Surface Mount	Non-Volatile	SPI	5 ms	20 MHz	8-UFDFN Exposed Pad	EEPROM	8-Mini Map (2x3)
Microchip Technology AT25040A-10TI-1.8	EEPROM	4 Kbit	85 °C	-40 °C	1.8 V	5.5 V	512	8	Surface Mount	Non-Volatile	SPI	5 ms	20 MHz	8-TSSOP	EEPROM	8-TSSOP					0.173 "	4.4 mm
Microchip Technology AT25040B-XPD-T	EEPROM	4 Kbit	125 °C	-40 °C	2.5 V	5.5 V	512	8	Surface Mount	Non-Volatile	SPI	5 ms	5 MHz	8-TSSOP	EEPROM	8-TSSOP					0.173 "	4.4 mm	AEC-Q100	Automotive
Microchip Technology AT25040AN-10SU-1.8-T	EEPROM	4 Kbit	85 °C	-40 °C	1.8 V	5.5 V	512	8	Surface Mount	Non-Volatile	SPI	5 ms	20 MHz	8-SOIC	EEPROM	8-SOIC	3.9 mm	0.154 in
Microchip Technology AT25040AN-10SU-2.7	EEPROM	4 Kbit	85 °C	-40 °C	2.7 V	5.5 V	512	8	Surface Mount	Non-Volatile	SPI	5 ms	20 MHz	8-SOIC	EEPROM	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	$ 0.43
		25	$ 0.42
		100	$ 0.41
		1000	$ 0.37
		5000	$ 0.35

Description

General part information

AT25040B Series

The Microchip AT25040B 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

Support for Third Party Memory Devices Programmer Sources

Application Notes

PCB Mounting Guidelines for Surface Mount Packages

Application Notes

AT25010B/AT25020B/AT25040B - 1/2/4-Kbit SPI Serial EEPROM, Industrial Grade Data Sheet

Data Sheets

Using C and a Hardware Module to Interface Texas Instruments' MSP430XXXX MCUs with SPI Serial EEPROMs

Application Notes

Using C to Interface Texas Instruments' MSP430XXXX MCUs with SPI Serial EEPROMs

Application Notes

AT25010B/AT25020B/AT25040B - 1/2/4-Kbit SPI Serial EEPROM, Automotive Grade Data Sheet

Data Sheets