25CS640T-I/MS

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Microchip Technology

64KB SPI SERIAL EEPROM W/ECC, 8-MSOP T&R, 85C 8 MSOP 3X3MM T/R ROHS COMPLIANT: YES

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25CS640T-I/MS

Active

Microchip Technology

64KB SPI SERIAL EEPROM W/ECC, 8-MSOP T&R, 85C 8 MSOP 3X3MM T/R ROHS COMPLIANT: YES

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Description Specifications Series Pricing CAD Documents

Description

General part information

25CS640 Series

The 25CS640 is a 64 Kbit (8 Kbytes) Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus.

Microchip's 25CS SPI Serial EEPROM Family offers additional features such as Built-in Error Correction Code (ECC) logic, Undervoltage Lockout (UVLO) detection, 128-bit Serial Number and Enhanced Write Protection to optimized for use in consumer electronics, industrial, medical, and automotive applications where reliable and dependable nonvolatile memory storage is essential. The EEPROM is available in a variety of space-saving packaging options.

Technical Specifications

Parameters and characteristics for this part

Specification	25CS640T-I/MS

Clock Frequency	20 MHz
Memory Depth	8 K
Memory Format	EEPROM
Memory Interface (Type)	SPI
Memory Size	8 KB
Memory Width	8 bit

25CS640 Series

Part	Access Time	Clock Frequency	Memory Size	Technology	Write Cycle Time - Page	Write Cycle Time - Word	Memory Interface (Type)	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Memory Format	Memory Type	Memory Depth	Memory Width	Operating Temperature (Max)	Operating Temperature (Min)	Package Length	Package Name	Package Width	Mounting Type	Qualification	Grade	Package / Case
Microchip Technology 25CS640T-E/MWF36KVAO	20 ns	20 MHz	8 KB	EEPROM	4 ms	4 ms	SPI	5.5 V	1.8 V	EEPROM	Non-Volatile	8 K	8 bit	125 °C	-40 °C
Microchip Technology 25CS640-I/ST		20 MHz	8 KB				SPI			EEPROM		8 K	8 bit
Microchip Technology 25CS640T-I/MS		20 MHz	8 KB				SPI			EEPROM		8 K	8 bit
Microchip Technology 25CS640T-H/SN	40 ns	10 MHz	8 KB	EEPROM	4 ms	4 ms	SPI	5.5 V	2.5 V	EEPROM	Non-Volatile	8 K	8 bit	150 °C	-40 °C	0.154 in	8-SOIC	3.9 mm	Surface Mount
Microchip Technology 25CS640T-E/MS36KVAO	20 ns	20 MHz	8 KB	EEPROM	4 ms	4 ms	SPI	5.5 V	1.8 V	EEPROM	Non-Volatile	8 K	8 bit	125 °C	-40 °C	0.118 in	8-MSOP 8-TSSOP 8-MSOP	3 mm	Surface Mount	AEC-Q100	Automotive
Microchip Technology 25CS640T-E/Q4B	20 ns	20 MHz	8 KB	EEPROM	4 ms	4 ms	SPI	5.5 V	1.8 V	EEPROM	Non-Volatile	8 K	8 bit	125 °C	-40 °C	2 mm	8-UDFN	3 mm	Surface Mount			8-UFDFN Exposed Pad
Microchip Technology 25CS640T-I/SN		20 MHz	8 KB				SPI			EEPROM		8 K	8 bit
Microchip Technology 25CS640T-E/SN36KVAO	20 ns	20 MHz	8 KB	EEPROM	4 ms	4 ms	SPI	5.5 V	1.8 V	EEPROM	Non-Volatile	8 K	8 bit	125 °C	-40 °C	0.154 in	8-SOIC	3.9 mm	Surface Mount	AEC-Q100	Automotive
Microchip Technology 25CS640-I/SN		20 MHz	8 KB				SPI			EEPROM		8 K	8 bit
Microchip Technology 25CS640T-E/ST36KVAO	20 ns	20 MHz	8 KB	EEPROM	4 ms	4 ms	SPI	5.5 V	1.8 V	EEPROM	Non-Volatile	8 K	8 bit	125 °C	-40 °C	0.173 in	8-TSSOP	4.4 mm	Surface Mount	AEC-Q100	Automotive

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

25CS640T-I/MS | Datasheet

AN3451 - Enhanced Write Protection for SPI EEPROM Devices

25CS640 - 64-Kbit SPI Serial EEPROM with 128-Bit Serial Number and Enhanced Write Protection

AN3377 - Using the Undervoltage Lockout Feature on SPI Serial EEPROMs