AS7C256A-15JCN

Overview

The AS7C256A-15JCN is a 256 Kbit (32K x 8) static random-access memory manufactured by Alliance Memory. It operates with a maximum access time of 15 ns and supports parallel interface communication. The device functions within a supply voltage range of 4.5 V to 5.5 V, with a maximum power consumption of 65 mA. It is housed in a 28-pin TSOP II surface-mount package and is rated for commercial temperature operation between 0°C and +70°C.

Feature Summary

• Provides non-volatile data retention characteristics typical of SRAM technology without requiring refresh cycles.
• Supports standard parallel interface protocols for direct connection to microprocessors and controllers.
• Designed for surface-mount assembly using a compact 28-pin TSOP II form factor.

Applications

• Embedded systems requiring fast local data storage
• Industrial control units needing reliable buffer memory
• Consumer electronics utilizing standard 5V logic interfaces

Procurement Notes

Verify the specific suffix JCN corresponds to the TSOP-II package and commercial temperature grade as documented. Confirm RoHS compliance status through official manufacturer declarations prior to integration. Ensure supply chain sources provide valid traceability documentation matching the Alliance Memory part number to avoid counterfeit components.

Selection Notes

Select this component when a 32K x 8 organization is required with 15 ns speed performance. It is suitable for designs constrained to 5V logic levels and commercial operating temperatures. Consider alternative packages if higher density or industrial temperature ranges are necessary for the target application environment.

Part Context

This part belongs to the AS7C256A series of asynchronous SRAMs from Alliance Memory. It shares architectural similarities with other members like the AS7C256A-15TCN but differs in package type and thermal rating. The series targets general-purpose memory applications requiring fast read/write capabilities within standard voltage constraints.

Replacement Considerations

Direct substitutes include AS7C256A-15TCN for TSOP-II packaging differences and AS7C256C-15PCN for PDIP alternatives. Verify pin compatibility and electrical specifications before swapping to ensure system integrity.