AS7C1024B-12JCNTR

Overview

The AS7C1024B-12JCNTR 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 with a maximum current consumption of 100 mA. The device features a 12 ns access time and utilizes a parallel interface. It is housed in a 32-pin SOJ package designed for surface mount technology. The component supports single data rate operations and is moisture sensitive. It is supplied in a reel format, suitable for automated assembly processes.

Feature Summary

• Asynchronous operation with fast 12 ns access time
• CMOS SRAM technology for high reliability
• Surface mount packaging for automated processing

Applications

• Data buffering in embedded systems
• Cache memory in microcontroller applications
• Industrial control system storage

Procurement Notes

Verify the specific suffix JCNTR indicates reel packaging rather than tube configuration. Confirm RoHS compliance status through official documentation as indicated in specifications. Check for humidity sensitivity handling requirements during storage and assembly. Ensure the 12 ns speed grade matches system timing constraints. Validate that the 5V logic levels are compatible with the target circuit design.

Selection Notes

Select this part when a 128K x 8 organization is required with 12 ns performance. Choose the reel variant for high-volume automated manufacturing lines. Consider the 5V operating voltage requirement against available power rails. Evaluate the SOJ-32 footprint compatibility with existing PCB layouts. Compare against other speed grades if faster access times are necessary.

Part Context

This component belongs to the AS7C1024B series of 1 Mbit CMOS SRAMs from Alliance Memory. The series offers various speed grades and packaging options including tubes and reels. The JCNTR designation specifically denotes the commercial temperature range and reel packaging format. It serves as a direct replacement for older 5V SRAM devices requiring similar density and speed characteristics.

Replacement Considerations

Check for EOL notifications as some variants in this series may be discontinued. Verify pinout compatibility with alternative suppliers offering equivalent 1Mbit SRAMs. Ensure voltage tolerance ranges match between original and substitute components.