AS7C1025B-10TJCN

Overview

The AS7C1025B-10TJCN is a 1 Mbit (128K x 8) asynchronous static random-access memory manufactured by Alliance Memory. It operates within a voltage range of 4.5 V to 5.5 V and features a maximum access time of 10 ns. The device utilizes a parallel interface and is housed in a 32-pin Small Outline J-Lead (SOJ) package designed for surface-mount technology. It supports single data rate operation and functions reliably across a commercial temperature range from 0°C to +70°C, with a maximum supply current of 100 mA.

Feature Summary

• Provides 1 Mbit storage capacity organized as 128K words by 8 bits
• Features fast 10 ns asynchronous access time for rapid data retrieval
• Operates on standard 5V power supply with low standby characteristics
• Utilizes SOJ-32 surface mount package for compact board integration

Applications

• Embedded systems requiring non-volatile-like speed without retention
• Industrial control units needing reliable buffer memory
• Consumer electronics utilizing 5V logic interfaces
• Automotive infotainment systems operating in commercial temperature ranges

Procurement Notes

Verify the specific suffix TJCN corresponds to the SOJ-32 package and tube packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to implementation. Ensure design compatibility with 5V logic levels and check for any moisture sensitivity labeling requirements during storage and handling procedures.

Selection Notes

Select this component when a 10 ns access speed is required for 1 Mbit SRAM applications. It is suitable for designs strictly operating at 5V logic levels. Consider alternative models if industrial temperature ratings or lower voltage operation are necessary. Verify pinout compatibility with existing PCB layouts before finalizing the bill of materials.

Part Context

This part belongs to the AS7C1025B series of high-speed asynchronous SRAMs. It shares architectural similarities with other variants in the family but differs in access speed and package type. The 10 ns variant offers faster performance compared to slower counterparts like the -12 or -15 versions, making it appropriate for higher-frequency bus applications within the 5V domain.

Replacement Considerations

Direct replacements include AS7C1025B-10JIN for TSOP II packages or AS7C1025B-12TJCN for slower 12 ns timing requirements. Cross-reference pinouts carefully as package variations may differ. Verify electrical specifications match exactly before substituting.