AS7C256B-15PINTR

Overview

The AS7C256B-15PINTR is a static random-access memory (SRAM) integrated circuit manufactured by Alliance Memory, Inc. It provides a storage capacity of 256 kilobits organized as 32K words by 8 bits. The device features a parallel interface with an access time of 15 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports surface-mount installation in a 28-pin TSOP I package. The component is designed for commercial temperature applications.

Feature Summary

• Asynchronous SRAM technology providing non-volatile data retention during power loss
• Parallel interface architecture supporting standard digital logic connections
• Surface-mount packaging suitable for automated assembly processes

Applications

• Embedded systems requiring fast local data storage
• Industrial control units needing reliable volatile memory
• Consumer electronics utilizing standard 5V logic interfaces

Procurement Notes

Verify the specific suffix PINTR against official datasheets to confirm the tape-and-reel packaging configuration. Ensure the 15ns speed grade matches system timing requirements. Confirm RoHS compliance status through manufacturer documentation before integration into regulated assemblies.

Selection Notes

Select this component when a 256Kbit capacity with 15ns access speed is required in a 28-pin TSOP I form factor. Compare against the AS7C256A series for potential pin-compatible alternatives with different speed grades or voltage ranges. Validate that the commercial temperature range meets the operational environment specifications.

Part Context

This part belongs to the AS7C256B family of asynchronous SRAMs from Alliance Memory. It shares architectural similarities with the AS7C256A series but may feature updated manufacturing processes or minor electrical characteristic variations. The B-series designation typically indicates a specific generation within the company's high-density SRAM portfolio.

Replacement Considerations

AS7C256A-15PINTR