AS7C256A-10JCN

Overview

The AS7C256A-10JCN is a 256K-bit (32K x 8) asynchronous static random-access memory manufactured by Alliance Memory. It operates within a voltage range of 4.5V to 5.5V with a maximum supply current of 70mA. The component features a 10ns access time and utilizes a parallel interface. It is housed in a 28-pin Small Outline J-Lead (SOJ) package designed for surface-mount technology. The device supports single data rate operations and functions reliably across a commercial temperature range from 0°C to +70°C.

Feature Summary

• Asynchronous parallel SRAM architecture providing fast read/write cycles
• Surface-mount SOJ-28 package optimized for compact PCB layouts
• Single voltage operation compatible with standard 5V logic systems

Applications

• Embedded memory storage in industrial control systems
• Data buffering in consumer electronics devices
• Cache memory solutions for microcontroller-based applications

Procurement Notes

Verify the specific suffix 'JCN' against official datasheets to confirm the SOJ-28 package and commercial temperature grade. Ensure voltage requirements align with system design, as this part requires 4.5V to 5.5V. Check humidity sensitivity levels for proper handling during assembly processes.

Selection Notes

Select this component when a 256K-bit capacity with 10ns speed is required in a surface-mount form factor. Compare against TSOP or DIP variants if pin compatibility differs. Confirm that the 5V operating voltage matches the target system's power rails before integration.

Part Context

This part belongs to the AS7C256A series of high-speed SRAMs. It shares architectural similarities with other members like the AS7C256A-12JCN but offers faster access times. The series is designed for general-purpose memory applications requiring non-volatile-like retention without the complexity of flash programming.

Replacement Considerations

AS7C256A-12JCN serves as a slower alternative within the same package. Verify electrical compatibility before substitution.