The Microchip Technology Inc. 34AA04 is a 4 Kbit Electrically Erasable PROM which utilizes the I2C serial interface and is capable of operation across a broad voltage range (1.7V to 3.6V). This device is JEDEC JC42.4 (EE1004-v) Serial Presence Detect (SPD) compliant and is designed to be compatible with DDR4 SDRAM modules. The 34AA04 includes reversible software write protection for each of four independent 128 x 8-bit blocks and supports an SMBus compatible bus time out. The device features a page write capability of up to 16 bytes of data. Address pins allow up to eight devices on the same bus. The 34AA04 is available in the 8-lead PDIP, SOIC, TSSOP, TDFN, and UDFN packages.

• 4 Kbit I2C EEPROM
• Internally organized as two 256 x 8-bit banks
• Byte or page writes (up to 16 bytes)
• Byte or sequential reads within a single bank
• JEDEC® JC42.4 (EE1004-v) Serial Presence Detect (SPD) compliant for DRAM (DDR4) modules
• Industry standard 1 MHz, 400 kHz, and 100 kHz
• SMBus-compatible bus time out
• Cascadable up to eight devices
• Reversible software write protection for four individual 128-byte blocks
• Voltage range: 1.7V to 3.6V
• Write current: 1.5 mA at 3.6V
• Read current: 200 μA at 3.6V, 400 kHz
• Standby current: 1 μA at 3.6V
• More than one million erase/write cycles
• Data retention: > 200 years
• 8-lead PDIP, SOIC, TSSOP, TDFN, and UDFN Packages
• Industrial (I): -40°C to +85°C
• Automotive (E): -40°C to +125°C