AS7C256A-12TCNTR

Overview

The AS7C256A-12TCNTR is a 256Kbit (32K x 8) asynchronous static random-access memory (SRAM) manufactured by Alliance Memory, Inc. It operates with a maximum access time of 12ns and supports parallel interface communication. The device functions within a supply voltage range of 3.0V to 3.6V, drawing a maximum current of 45mA. It is housed in a 28-pin TSOP I surface-mount package and is designed for commercial temperature applications ranging from 0°C to +70°C.

Feature Summary

• Asynchronous SRAM architecture providing fast data access
• Single 3.3V power supply operation
• Surface-mount TSOP I packaging for compact integration

Applications

• Embedded systems requiring non-volatile-like temporary storage
• Industrial control units
• Consumer electronics devices

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging rather than tray. Confirm the voltage range matches system requirements. Check RoHS compliance status. Ensure the commercial temperature grade suits the operating environment. Validate pinout compatibility with existing PCB layouts.

Selection Notes

Select this component when a 32K x 8 organization is required. Choose the 12ns speed grade for moderate performance needs. Opt for the TSOP I package if space constraints dictate a slim profile. Consider the 3.3V logic level compatibility with modern microcontrollers.

Part Context

This part belongs to the AS7C256A series of asynchronous SRAMs. It shares the same core memory array as the AS7C256A-12TCN but differs in packaging format. The TR suffix specifically denotes reel packaging for automated assembly processes.

Replacement Considerations

AS7C256A-12TCN offers identical electrical specifications but uses tray packaging instead of tape-and-reel.