AS7C31025B-20JCNTR

Overview

The AS7C31025B-20JCNTR is a 1 Mbit (128K x 8) asynchronous static random access memory manufactured by Alliance Memory. It operates within a voltage range of 3 V to 3.6 V and features a maximum access time of 20 ns. The device utilizes a parallel interface and is housed in a 32-pin SOJ package designed for surface mount technology. It supports single data rate operations with a maximum supply current of 65 mA. The component functions reliably across a commercial temperature range from 0°C to +70°C.

Feature Summary

• Asynchronous operation for simple interfacing without clock synchronization requirements
• CMOS technology ensuring low power consumption during active and standby modes
• Surface mount packaging optimized for automated assembly processes

Applications

• Industrial control systems requiring fast data access
• Communication equipment buffer memory
• Embedded system data storage

Procurement Notes

Verify the specific suffix JCNTR against the manufacturer's official datasheet to confirm pinout compatibility and package dimensions. Ensure the procurement channel provides RoHS compliance documentation as indicated in product specifications. Confirm that the reel packaging format matches your automated placement equipment requirements before finalizing orders.

Selection Notes

Select this component when a 1 Mbit capacity with 20 ns access speed is required for commercial temperature environments. Compare against other SRAM families if lower power or wider operating temperatures are necessary. Verify that the 3.3 V logic levels align with the target system's I/O standards to ensure signal integrity without additional level shifting circuitry.

Part Context

This part belongs to the AS7C31025B series of fast asynchronous SRAMs from Alliance Memory. The series is designed for applications needing high-speed data retrieval with minimal interface complexity. It serves as a legacy replacement for older SRAM technologies in established industrial and communication designs.

Replacement Considerations

Check for direct pin-compatible alternatives within the same Alliance Memory family, such as different speed grades or package variants. Verify electrical parameters against potential substitutes from other manufacturers to ensure functional equivalence in timing and voltage specifications.