AS7C1024B-20JCN

Overview

The AS7C1024B-20JCN is a 1 Mbit (128K x 8) asynchronous static random-access memory manufactured by Alliance Memory. It operates within a supply voltage range of 4.5 V to 5.5 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 suitable for surface mount technology. It supports single data rate storage and functions within a commercial temperature range of 0°C to +70°C, with a maximum power consumption of 100 mA.

Feature Summary

• Asynchronous operation with fast access times for general-purpose memory applications
• Single data rate architecture supporting standard parallel interface protocols
• Commercial temperature range operation ensuring reliability in standard environments

Applications

• General-purpose data buffering in embedded systems
• Cache memory implementation in microcontroller-based designs
• Industrial control system data storage

Procurement Notes

Verify the specific suffix JCN confirms the SOJ-32 package and commercial temperature grade against official datasheets. Confirm RoHS compliance status through manufacturer documentation prior to integration. Ensure voltage levels match the 4.5V to 5.5V requirement for stable operation.

Selection Notes

Select this component when a 128K x 8 organization is required with 20 ns speed at 5V logic levels. Compare against the -12 variant for faster access or other packages like TSOP if board space constraints differ. Validate humidity sensitivity handling during assembly processes.

Part Context

This part belongs to the AS7C1024B series of 1 Mbit SRAMs from Alliance Memory. It shares architectural similarities with other variants differing primarily in access speed and packaging options. The series provides non-volatile-like retention characteristics typical of SRAM technology for volatile data storage needs.

Replacement Considerations

Check for direct pin-compatible alternatives within the same series such as AS7C1024B-12JCN for faster performance. Verify equivalent 1Mbit capacity and 5V operation requirements before substituting with parts from other manufacturers.