DS1230Y-150+ 256Kb Non-Volatile SRAM

The DS1230Y-150+ is a 256-kilobit non-volatile SRAM (NVSRAM) manufactured by Maxim Integrated. Organized as 32K words by 8 bits, this memory device combines the functionality of high-speed static RAM with non-volatile data retention, ensuring that critical information is preserved during power interruptions.

Non-Volatile Operation

Unlike conventional SRAM, the DS1230Y-150+ incorporates an internal lithium power source and control circuitry that automatically write-protects the memory and switches to battery backup when VCC levels fall below a specified threshold. This ensures that stored data remains intact for an extended period without requiring external power. A freshness seal feature preserves battery life during storage until the device is first powered on in the application.

Performance Characteristics

The device supports unlimited write cycles, distinguishing it from flash-based memories that have finite endurance. It allows individual byte read and write operations without the need for block erasures. The DS1230Y-150+ operates over a commercial temperature range of 0°C to 70°C, with industrial temperature variants available for extended conditions.

• Memory Size: 256Kb (32K x 8)

• Access Time: 150 ns

• Interface: Parallel

• Supply Voltage: 4.5V to 5.5V

• Operating Current: 85 mA (typical)

• Package Type: 28-pin DIP Module (600 mil)

• Data Retention: Minimum 10 years

Reliability and Applications

The DS1230Y-150+ is recognized by Underwriters Laboratories (UL) under file E99151, confirming its safety standards. This NVSRAM is ideal for applications requiring high-speed, read/write capability with non-volatile storage, such as digital communication equipment, industrial controllers, and embedded systems where configuration data, calibration constants, or critical logs must be preserved without power.