25CSM04 Series

4Mb SPI Serial EEPROM

Catalog

4Mb SPI Serial EEPROM

Part	Memory Organization	Mounting Type	Memory Size	Write Cycle Time - Word, Page	Memory Format	Clock Frequency	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Technology	Voltage - Supply [Min]	Voltage - Supply [Max]	Memory Type	Memory Interface
Microchip Technology 25CSM04T-I/MF	512 K	Surface Mount	512 kb	5 ms	EEPROM	8 MHz	8-WDFN Exposed Pad	85 °C	-40 °C	8-WDFN (5x6)	EEPROM	2.5 V	5.5 V	Non-Volatile	SPI
Microchip Technology 25CSM04T-I/CS0668	512 K	Surface Mount	512 kb	5 ms	EEPROM	8 MHz	8-XFBGA WLCSP	85 °C	-40 °C	8-WLCSP	EEPROM	2.5 V	5.5 V	Non-Volatile	SPI

Catalog

4Mb SPI Serial EEPROM

Key Features

• * 524,288 x 8 bit; page size of 256 bytes

• * Byte or sequential reads; byte or page writes

• * Self-timed write cycle (5 ms maximum)

• * Security register featuring preprogrammed 128-bit serial number and 256-byte user-programmable lockable ID page

• * Built-in Error Correction Code (ECC) Logic with ECC Status bit via the STATUS register

• * JEDEC(R) SPI Manufacturer Read ID Support

• * High-Speed Clock Frequency of 8MHz at Vcc > 3.0V; 5MHz at Vcc >2.5V

• * Legacy Write Protection Mode with a quarter, half, or entire array protection

• * Enhanced Software Write Protection Mode with user-definable partitions and each partition settable with unique protection behavior

• * Write current: 3.0mA at 5V; Read current: 3.0mA at 5V, 8MHz, Standby Current 1.0uA at 2.5V

• * More than one million erase/write cycles

• * Data Retention > 100 years

• * ESD Protection > 4000V

• * Industrial Temp Range

Description

The Microchip 25CSM04 is a 4 Mb Serial EEPROM with a Serial Peripheral Interface (SPI) capable of operation across a broad voltage range (2.5V to 5.5V). The device is organized as one block of 524,288 bytes of 8-bits each (512 KByte). It includes a security register with a 128-bit unique serial number and a 256-byte (2048-bit) user-programmable lockable ID page, built in ECC, and a configurable write protection scheme for all bytes. The 25CSM04 is optimized for use in consumer electronics, industrial, and medical applications where reliable and dependable nonvolatile memory storage is essential, and is packaged in SOIC, DFN, and WLCSP purchase options.