BL34TS04A – 4K-bit DDR4 SPD EEPROM with Temperature Sensor, 1.7~3.6V, UDFN8, 34TS04

The BL EEPROM & Serial Memory Series is a comprehensive range of non-volatile memory devices supporting I²C (Two-Wire Serial), SPI, Microwire, and DDR SPD interfaces. Capacities range from 1K bits to 2048K bits, covering standard EEPROM, high-density serial Flash-compatible EEPROM, and DDR4/DDR5 SPD EEPROMs with temperature sensing.

These devices are designed for low power consumption, high reliability, and wide voltage operation, and are available in ultra-small packages including WLCSP and UDFN, making them ideal for space-constrained and high-performance systems.

Key Specifications (Series)

• Memory Type: EEPROM / Serial Memory

• Interfaces:

  • Two-Wire Serial (I²C)

  • SPI (Serial Peripheral Interface)

  • Microwire

  • DDR4 / DDR5 SPD

• Capacity Range: 1K bits ~ 2048K bits

• Operating Voltage: 1.2V ~ 5.5V (device dependent)

• Packages: DIP8, SOP8, TSSOP8, UDFN8, WLCSP4, WLCSP8

• Compatibility: 24Cxx / 25Cxx / 93Cxx / SPD standards

Applications

• Consumer electronics

• Smart meters & energy meters

• DDR4 / DDR5 memory modules

• Industrial control systems

• IoT & embedded systems

• Portable and wearable devices

Features

• Non-volatile data storage

• Multiple serial interface options

• Ultra-low standby power

• Wide operating voltage range

• High integration in chip-scale packages

• Industry-standard pin and protocol compatibility