AT34C04 Series

4Kb I2C compatible Serial Present Detect (SPD) Serial EEPROM for DDR4 DIMM modules

Catalog

4Kb I2C compatible Serial Present Detect (SPD) Serial EEPROM for DDR4 DIMM modules

Part	Mounting Type	Memory Format	Memory Type	Technology	Memory Organization [custom]	Memory Organization [custom]	Memory Interface	Memory Size	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply [Max]	Voltage - Supply [Min]	Write Cycle Time - Word, Page	Package / Case	Package / Case [y]	Package / Case [x]	Supplier Device Package	Package / Case [custom]	Package / Case [custom]
Microchip Technology AT34C04-SS5M-B	Surface Mount	EEPROM	Non-Volatile	EEPROM	512	8	I2C	4 Kbit	-20 °C	125 °C	3.6 V	1.7 V	5 ms	8-SOIC	3.9 mm	0.154 in	8-SOIC
Microchip Technology AT34C04-X5M-T	Surface Mount	EEPROM	Non-Volatile	EEPROM	512	8	I2C	4 Kbit	-20 °C	125 °C	3.6 V	1.7 V	5 ms	8-TSSOP			8-TSSOP	0.173 "	4.4 mm
Microchip Technology AT34C04-SS5M-T	Surface Mount	EEPROM	Non-Volatile	EEPROM	512	8	I2C	4 Kbit	-20 °C	125 °C	3.6 V	1.7 V	5 ms	8-SOIC	3.9 mm	0.154 in	8-SOIC
Microchip Technology AT34C04-MA5M-T	Surface Mount	EEPROM	Non-Volatile	EEPROM	512	8	I2C	4 Kbit	-20 °C	125 °C	3.6 V	1.7 V	5 ms	8-UFDFN Exposed Pad			8-UDFN (2x3)

Catalog

4Kb I2C compatible Serial Present Detect (SPD) Serial EEPROM for DDR4 DIMM modules

Key Features

• + 512 x 8 (4 Kbit)

• + 400 kHz and 1 MHz clock compatibility

• + Supports up to 8 devices on the bus

• + JEDEC JC42.4 (EE1004-v) Serial Presence Detect (SPD) Compliant

• + Individually reversible software write protection on all four 128-byte quadrants

• + Software procedure to verify each quadrant’s write protection status

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

• + Read current 0.4 mA (Typ), 1 mA (Max)

• + Write current 1.5 mA (Typ), 3 mA (Max)

• + Standby current 4 uA (Max)

• + Hardware Write-Protect Pin

• + More than 1 million erase/write cycles

• + Data retention > 100 years

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

Description

The Microchip AT34C04 is a 4 Kb Serial EEPROM utilizing an I2C (2-wire) serial interface. The device is organized as one block of 512 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 with an operating range of 1.7 to 3.6V. The AT34C04 is tailored specifically for DRAM memory modules with Serial Presence Detect (SPD). The device incorporates a Reversible Software Write Protection (RSWP) feature enabling the capability to selectively write protect any or all of the four 128-byte quadrants.