AS7C1024B-15TCN

Overview

The AS7C1024B-15TCN 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 15 ns. The device utilizes a parallel interface and is housed in a 32-pin TSOP-II 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 power supply current of 90 mA.

Feature Summary

• Asynchronous SRAM architecture providing fast read access times for system memory applications
• Single data rate operation compatible with standard parallel bus interfaces
• Surface-mount TSOP-II packaging designed for automated assembly processes

Applications

• Embedded systems requiring non-volatile-like speed without retention
• Industrial control units operating within commercial temperature limits
• Consumer electronics utilizing 5V logic families

Procurement Notes

Verify the specific suffix TCN against official datasheets to confirm the TSOP-II package type and commercial temperature rating. Ensure compatibility with 5V logic levels and check humidity sensitivity handling requirements during storage and reflow soldering processes prior to integration.

Selection Notes

Select this component when a 128K x 8 organization is required with 15 ns performance at 5V. Compare against other series members like the AS7C1026B for different word widths or the AS7C31024B for 3.3V operation. Confirm that the TSOP-II footprint matches the target PCB layout constraints.

Part Context

This part belongs to the AS7C1024B family of high-speed asynchronous SRAMs. It shares core electrical specifications with variants differing primarily in package style, such as SOJ or DIP options, and temperature grades. The TCN suffix specifically denotes the thin small-outline package variant intended for surface-mount technology applications.

Replacement Considerations

Direct pin-compatible substitutes include other Alliance Memory parts within the same AS7C1024B series offering identical 128K x 8 density and 15 ns speed but in alternative packages like SOJ-32.