AS7C1026B-12TCNTR

Overview

The AS7C1026B-12TCNTR is a 1-Mbit (64K x 16) asynchronous static random-access memory manufactured by Alliance Memory. It operates within a supply voltage range of 4.5 V to 5.5 V and features a maximum access time of 12 ns. The device utilizes a single data rate parallel interface and is housed in a 44-pin TSOP-II surface-mount package. It supports commercial operating temperatures from 0°C to +70°C with a maximum power consumption of 100 mA.

Feature Summary

• Asynchronous operation with 12 ns access speed for rapid data retrieval
• High-density 1 Mbit storage organized as 64K words by 16 bits
• Standard 5V CMOS technology compatible with general logic families

Applications

• Industrial control systems requiring fast local data buffering
• Embedded computing architectures needing high-speed volatile memory
• Telecommunications equipment utilizing standard 5V logic interfaces

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging rather than tray distribution, as this affects handling procedures. Confirm that the 12 ns speed grade matches system timing requirements. Ensure the 44-pin TSOP-II footprint aligns with existing PCB layouts. Check RoHS compliance status for environmental regulations.

Selection Notes

Select this component when a 16-bit data bus width is required for 1 Mbit capacity. The 12 ns speed suits applications needing moderate-to-high performance without complex synchronous controllers. The TSOP-II package offers a compact solution for space-constrained designs compared to larger leaded packages.

Part Context

This part belongs to the AS7C1026B series of low-power CMOS SRAMs. It serves as a non-volatile-free memory solution for temporary data storage in microprocessor-based systems. The TR suffix typically denotes reel packaging for automated assembly processes.

Replacement Considerations

Check for AS7C1026B-12TCN if tray packaging is acceptable. Verify pinout compatibility with other 44-pin TSOP-II SRAMs before substitution.