AS7C31024B-15TCN

Overview

The AS7C31024B-15TCN 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 15 ns. The device utilizes a parallel interface and is housed in a 32-pin TSOP I surface-mount package. It supports single data rate operation and functions reliably across a commercial temperature range from 0°C to +70°C, with a maximum supply current of 70 mA.

Feature Summary

• Asynchronous parallel interface for direct system integration
• Single data rate operation with fast 15 ns access speed
• Surface-mount TSOP I packaging for compact board design

Applications

• Embedded systems requiring non-volatile-like temporary storage
• Industrial control units operating in commercial environments
• Consumer electronics utilizing 3.3V logic levels

Procurement Notes

Verify the specific suffix TCN confirms the TSOP I package variant rather than other package types like SOJ or TSOP II. Confirm RoHS compliance status through official documentation before procurement. Ensure the 15 ns speed grade matches system timing requirements. Validate humidity sensitivity handling procedures during assembly.

Selection Notes

Select this component when a 128K x 8 organization is required instead of wider bus configurations. Choose the TSOP I package if footprint constraints differ from standard TSOP II layouts. Verify that the 3.3V operating voltage aligns with the target system's power rails. Consider the 15 ns access time against system clock speeds.

Part Context

This part belongs to the AS7C31024B series of 1 Mbit SRAM devices. It shares architectural similarities with other members but differs in pin count and physical dimensions due to its 8-bit width configuration. The TSOP I package distinguishes it from the more common TSOP II variants found in the same family.

Replacement Considerations

Direct replacements include AS7C31024B-10TCN for faster 10 ns performance in the same package. Other Alliance Memory parts with identical pinouts and electrical characteristics may serve as substitutes if speed grades are compatible.