AS7C1024B-15TJINTR

Overview

The AS7C1024B-15TJINTR is a 1-Mbit (128K x 8) asynchronous static random-access memory (SRAM) manufactured by Alliance Memory, Inc. It operates with a single 5V power supply and features a maximum access time of 15ns. The device utilizes a parallel interface and is housed in a 32-pin Small Outline J-Lead (SOJ) package designed for surface-mount technology. It supports commercial temperature ranges and includes standard SRAM control signals such as chip select, output enable, and write enable.

Feature Summary

• Asynchronous operation with fast 15ns access times for efficient data retrieval
• Single 5V voltage supply compatibility for standard logic integration
• Surface-mount 32-pin SOJ package design for compact circuit board layouts

Applications

• General-purpose volatile memory storage in embedded systems
• Cache memory buffers in microcontroller-based applications
• Data buffering in industrial control equipment

Procurement Notes

Verify the specific suffix TJINTR to confirm the tape-and-reel packaging format and moisture sensitivity level prior to ordering. Ensure the procurement channel provides valid RoHS compliance documentation. Confirm that the component meets the required commercial temperature specifications for the intended operational environment. Check for any end-of-life notices or obsolescence warnings from the manufacturer before finalizing supply agreements.

Selection Notes

Select this component when a 1-Mbit capacity with 128K x 8 organization is required. Choose this part if a 15ns access speed is sufficient for the system timing constraints. Opt for this model if a 32-pin SOJ surface-mount package is mandated by the PCB layout. Ensure the design supports a single 5V power rail without requiring additional level shifting.

Part Context

This part belongs to the AS7C1024B series of high-speed asynchronous SRAMs. It shares architectural similarities with other members of the family but differs in package type and operating voltage. The SOJ variant offers a distinct footprint compared to TSOP or PLCC packages found in other series members, influencing mechanical design decisions.

Replacement Considerations

Direct pin-to-pin replacements may include other AS7C1024B variants with different suffixes indicating alternative packages or speeds. Verify electrical compatibility regarding voltage levels and access times when substituting. Cross-reference with equivalent parts from other manufacturers only after confirming parameter alignment.