AS6C6264A-70SIN

Overview

The AS6C6264A-70SIN is an asynchronous CMOS SRAM with a memory organization of 8K x 8 bits, providing a total capacity of 64 Kbit. It features a typical access time of 70 ns and operates within a supply voltage range of 4.5 V to 5.5 V. The device utilizes a 28-pin Small Outline Package (SOP) with a 330 mil body width. It supports TTL/CMOS-compatible inputs and outputs, includes three-state outputs for bus driving, and offers automatic power reduction during long read or write cycles.

Feature Summary

• Low power consumption with typical operating current of 10 mA and standby current below 2 µA at temperatures up to 70 °C
• TTL and CMOS compatible logic levels for broad interface compatibility
• Automatic power dissipation reduction mechanism during extended read or write operations
• High ESD protection exceeding 2000 V according to MIL STD 883C M3015.7 standards

Applications

• General-purpose static RAM applications requiring low power operation
• Embedded systems utilizing TTL or CMOS logic families
• Battery-powered devices benefiting from low standby current characteristics

Procurement Notes

Verify the specific suffix 'SIN' corresponds to the SOP-28 package and industrial/commercial temperature grade as defined in the official Alliance Memory datasheet. Confirm that the 4.5V to 5.5V supply voltage requirement aligns with your system design, as this variant differs from lower-voltage options. Ensure component authenticity through authorized distributors to avoid counterfeit risks associated with legacy memory parts.

Selection Notes

Select this component when a 64 Kbit capacity with 70 ns speed is required in a surface-mount SOP-28 package. It is suitable for designs needing 5V logic compatibility and low standby power. Compare against the AS6C6264-55 series if faster 55 ns access times are necessary, noting potential differences in power consumption and package availability across the product line.

Part Context

This part belongs to the AS6C6264 family of low-power CMOS SRAMs manufactured by Alliance Memory. The family offers various access speeds and packaging options, including PDIP and TSOP variants. The AS6C6264A designation indicates an enhanced version of the original AS6C6264, typically featuring improved reliability and standardized pinouts compatible with industry equivalents.

Replacement Considerations

Direct replacements include the AS6C6264-70SCNTR for reel-packaged SOP-28 units. For through-hole requirements, consider the AS6C6264-70PIN in a PDIP-28 package. Verify electrical parameters such as supply voltage and access time match before substituting.