AS6C4008A-55TIN

Overview

The AS6C4008A-55TIN is a 4 Mbit (512K x 8) asynchronous static random-access memory manufactured by Alliance Memory. It operates within a voltage range of 2.7 V to 5.5 V and features a maximum access time of 55 ns. The device utilizes a parallel interface and is housed in a 32-pin TSOP package for surface-mount installation. It supports single data rate operation and functions across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Asynchronous parallel interface for direct microcontroller integration
• Wide supply voltage compatibility supporting 2.7V to 5.5V systems
• Industrial-grade thermal stability for harsh environments

Applications

• Embedded system data buffering
• Industrial control logic storage
• Consumer electronics memory expansion

Procurement Notes

Verify component authenticity through authorized distributors or the manufacturer directly. Confirm RoHS compliance status and humidity sensitivity handling requirements prior to assembly. Review the official datasheet for specific electrical characteristics and pin configurations to ensure design compatibility.

Selection Notes

Select this component when a wide voltage range including 5V logic levels is required alongside low-cost SRAM solutions. The 55 ns speed suits moderate-speed applications where high-frequency synchronous memory is unnecessary. Ensure the PCB layout accommodates the 32-pin TSOP form factor.

Part Context

This part belongs to the AS6C4008 series of asynchronous SRAMs. It offers a density of 4 Mbits organized as 512K words by 8 bits. The 'A' suffix typically denotes a revision update, while '55' indicates the 55 ns access speed class within the product family.

Replacement Considerations

Check for exact pin-compatible alternatives with identical voltage and timing specifications. Verify if newer revisions of the AS6C4008 series offer improved availability or updated packaging options.