AS7C256A-10TCNTR

Overview

The AS7C256A-10TCNTR is a 256 Kbit (32K x 8) asynchronous static random-access memory (SRAM) manufactured by Alliance Memory. It operates with a maximum access time of 10 ns and supports a parallel interface. The device functions within a supply voltage range of 3 V to 3.6 V, with a maximum power current of 50 mA. It is designed for surface-mount installation in a 28-pin TSOP I package. The component supports single data rate (SDR) storage and is rated for commercial temperature operation between 0°C and +70°C.

Feature Summary

• Asynchronous SRAM architecture providing fast random access capabilities
• Low-voltage operation compatible with 3.3V systems
• Surface-mount TSOP I packaging for compact board integration

Applications

• Embedded system data buffering
• Cache memory implementation in microcontroller units
• Industrial control logic storage

Procurement Notes

Verify the specific suffix 'TCNTR' against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration and moisture sensitivity level. Ensure the ordering documentation explicitly matches the 28-pin TSOP I form factor and the 10 ns speed grade. Cross-reference the RoHS compliance status and lead times directly with authorized distributors or the manufacturer before finalizing procurement orders.

Selection Notes

Select this component when a 32K x 8 organization is required for low-latency data retention in space-constrained designs. The 10 ns access time suits applications needing rapid read/write cycles without complex timing controllers. Compare against the AS7C256A-10TIN variant if through-hole mounting is preferred, or consider higher density options like the AS7C34098A series if larger memory footprints are necessary.

Part Context

This part belongs to the AS7C256A family of asynchronous SRAMs from Alliance Memory. It shares architectural similarities with other members like the AS7C256C-15PCN but differs in voltage requirements and package type. The family targets general-purpose memory needs where non-volatile alternatives are unsuitable due to write endurance or speed constraints.

Replacement Considerations

AS7C256A-10TIN offers identical electrical specifications but utilizes a 28-TSOP I tray package instead of tape-and-reel.