AS7C31024B-20TJCN

Overview

The AS7C31024B-20TJCN is a 1 Mbit (128K x 8) asynchronous static random access memory manufactured by Alliance Memory. It operates within a supply voltage range of 3.0 V to 3.6 V and features a maximum access time of 20 ns. The device utilizes a parallel interface and is housed in a 32-pin SOJ surface-mount package. It supports single data rate operation and functions reliably across a commercial temperature range from 0°C to +70°C.

Feature Summary

• Provides high-speed asynchronous data access with a 20 ns cycle time for efficient system integration.
• Operates on a standard 3.3 V power supply, ensuring compatibility with common logic families.
• Utilizes CMOS technology to deliver reliable performance in compact surface-mount configurations.

Applications

• Embedded systems requiring fast local data storage
• Industrial control units needing reliable volatile memory
• Consumer electronics utilizing 3.3 V logic interfaces

Procurement Notes

Verify the specific suffix TJCN against official datasheets to confirm the 32-pin SOJ package and lead-free status. Ensure the design accommodates the 0°C to +70°C operating temperature range. Confirm that the 20 ns access time meets the target system's timing requirements before finalizing procurement.

Selection Notes

Select this component when a 128K x 8 organization is required with a 20 ns speed grade. It is suitable for designs constrained by the SOJ-32 footprint. Compare against faster variants like the 12 ns or 10 ns models if higher throughput is needed, or slower variants if power consumption is the primary constraint.

Part Context

This part belongs to the AS7C31024B series of fast asynchronous SRAMs. It shares the same memory density and pinout as other speed grades in the family, such as the AS7C31024B-12JCN. The B-series designation typically indicates standard commercial-grade specifications and CMOS construction.

Replacement Considerations

Direct substitutes include other speed grades within the same package, such as AS7C31024B-12JCN. Cross-referencing with similar 1Mbit 3.3V SOJ-32 SRAMs from other manufacturers requires careful verification of pin compatibility and electrical characteristics.