AS6C6264A-70SCN

Overview

The AS6C6264A-70SCN is an asynchronous static random-access memory (SRAM) manufactured by Alliance Memory. It provides a storage capacity of 64 kbit, organized as 8K x 8 bits. The device features a 70 ns access time and operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes a CMOS process technology for low power consumption, with typical operating current of 10 mA and standby current below 2 μA at temperatures up to 70 °C. The component supports TTL/CMOS-compatible logic levels and includes three-state outputs for bus driving.

Feature Summary

• Low power CMOS construction with automatic power dissipation reduction during long read or write cycles
• Common data inputs and outputs with three-state output capability
• High ESD protection exceeding 2000 V and latch-up immunity greater than 100 mA

Applications

• Embedded systems requiring non-volatile-like retention characteristics
• Industrial control units operating within standard temperature ranges
• Consumer electronics utilizing 5V logic interfaces

Procurement Notes

Verify the specific suffix 'SCN' against official datasheets to confirm package type and tape-and-reel configuration. Ensure compatibility with 5V logic families. Check RoHS compliance status for environmental regulations. Confirm availability as this series may have discontinuation notices. Validate operating temperature range requirements against industrial specifications.

Selection Notes

Select this component when a 64 kbit SRAM with 70 ns speed is required in a surface-mount SOP-28 package. It is suitable for designs needing low standby current and wide ESD protection. Compare against AS6C6264 variants if different access times or voltage ranges are needed. Ensure the system operates within the 4.5V to 5.5V supply constraint.

Part Context

This part belongs to the AS6C6264A family of low-power CMOS SRAMs from Alliance Memory. It shares architectural similarities with other members like AS6C6264A-55SCN but offers a slower 70 ns access time compared to faster variants. The family is designed for general-purpose memory applications where power efficiency and robustness are prioritized over high-speed performance.

Replacement Considerations

AS6C6264A-55SCN offers faster 55 ns access time in the same package. AS6C6264-55PINTR provides similar functionality in a PDIP package with reel packaging. Verify pinout compatibility before substitution.