AT24CS64 Series

64Kb I2C compatible 2-wire Serial EEPROM with Pre-programmed Serial Number

Catalog

64Kb I2C compatible 2-wire Serial EEPROM with Pre-programmed Serial Number

Part	Memory Format	Memory Organization	Write Cycle Time - Word, Page	Package / Case	Package / Case [custom]	Package / Case [custom]	Memory Size	Mounting Type	Supplier Device Package	Memory Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Access Time	Operating Temperature [Max]	Operating Temperature [Min]	Technology	Memory Interface	Package / Case [y]	Package / Case [x]
Microchip Technology AT24CS64-XHM-B	EEPROM	8 K	5 ms	8-TSSOP	0.173 "	4.4 mm	64 Kbit	Surface Mount	8-TSSOP	Non-Volatile	5.5 V	1.7 V	550 ns	85 °C	-40 °C	EEPROM	I2C
Microchip Technology AT24CS64-XHM-T	EEPROM	8 K	5 ms	8-TSSOP	0.173 "	4.4 mm	64 Kbit	Surface Mount	8-TSSOP	Non-Volatile	5.5 V	1.7 V	550 ns	85 °C	-40 °C	EEPROM	I2C
Microchip Technology AT24CS64-MAHM-T	EEPROM	8 K	5 ms	8-UFDFN Exposed Pad			64 Kbit	Surface Mount	8-UDFN (2x3)	Non-Volatile	5.5 V	1.7 V	550 ns	85 °C	-40 °C	EEPROM	I2C
Microchip Technology AT24CS64-SSHM-B	EEPROM	8 K	5 ms	8-SOIC			64 Kbit	Surface Mount	8-SOIC	Non-Volatile	5.5 V	1.7 V	550 ns	85 °C	-40 °C	EEPROM	I2C	3.9 mm	0.154 in
Microchip Technology AT24CS64-SSHM-T	EEPROM	8 K	5 ms	8-SOIC			64 Kbit	Surface Mount	8-SOIC	Non-Volatile	5.5 V	1.7 V	550 ns	85 °C	-40 °C	EEPROM	I2C	3.9 mm	0.154 in

Catalog

64Kb I2C compatible 2-wire Serial EEPROM with Pre-programmed Serial Number

Key Features

• + 8K x 8 (64 Kbit)

• + 400 kHz (1.7V) and 1 MHz (>2.5V) clock compatibility

• + Self-Timed Erase and Write Cycles (5 ms max.)

• + Read current 0.4 mA (Typ), 1.0 mA (Max)

• + Write current 2 mA (Typ), 3 mA (Max)

• + Standby current 6 uA (Max)

• + Hardware Write-Protect Pin

• + More than 1 million erase/write cycles

• + Data retention > 100 years

• + Factory Programming Available

• + Available in 8-lead JEDEC SOIC, 8-lead TSSOP, and 8-pad UDFN

Description

The Microchip AT24CS64 is a 64 Kb Serial EEPROM utilizing an I2C (2-wire) serial interface. The device is organized as one block of 8K x 8 and is optimized for use in consumer and industrial applications where reliable and dependable nonvolatile memory storage is essential. The EEPROM is available in a variety of space-saving packaging options. The AT24CS64 features a 128-bit serial number that is programmed and permanently write protected during the Microchip manufacturing process. This unique identifier is separate from the main 64Kb memory array and eliminates the time consuming step of performing and ensuring serialization of a product on a manufacturing line. The 128 bit serial number is guaranteed unique across the entire CS series of Serial EEPROM products.