AS7C256A-10TCN

Overview

The AS7C256A-10TCN is a 256K-bit (32K x 8) asynchronous static random-access memory manufactured by Alliance Memory. It operates within a voltage range of 4.5V to 5.5V and features a maximum access time of 10ns. The device utilizes a parallel interface and is housed in a 28-pin TSOP I surface-mount package. Designed for commercial temperature applications, it functions between 0°C and +70°C with a maximum supply current of 70mA.

Feature Summary

• Asynchronous parallel SRAM architecture
• Surface-mount TSOP I packaging
• Commercial temperature operation

Applications

• General-purpose data storage
• Embedded system memory buffers
• Industrial control systems

Procurement Notes

Verify the specific suffix 'TCN' against official datasheets to confirm pinout compatibility and voltage specifications. Ensure the selected variant matches the required operating temperature range and package dimensions for the target PCB design. Cross-reference manufacturer documentation for moisture sensitivity levels and handling requirements prior to assembly.

Selection Notes

Select this component when a 256K-bit capacity with 10ns speed is required in a 28-pin TSOP I form factor. Confirm that the system power supply aligns with the 4.5V to 5.5V operational range. Evaluate thermal constraints to ensure the commercial temperature rating meets environmental demands.

Part Context

This part belongs to the AS7C256A series of standard SRAMs from Alliance Memory. It shares architectural similarities with other variants in the family but differs in package type and speed grade. The TSOP I package distinguishes it from SOJ or PDIP alternatives within the same memory density class.

Replacement Considerations

AS7C256A-10TIN is an officially documented substitute offering identical electrical characteristics in a compatible TSOP I package.