CY62256LL-55SNI

Memory IC Overview

The CY62256LL-55SNI is a high-performance CMOS static RAM organized as 32,768 words by 8 bits. It operates within a voltage range of 4.5V to 5.5V and features an access time of 55 ns. The device supports low active power consumption with a maximum of 275 mW and low standby power with a maximum of 28 µW. It includes TTL-compatible inputs and outputs, automatic power-down when deselected, and CE/OE features for easy memory expansion.

Memory IC Feature Summary

• Low power operation with reduced active and standby current consumption
• TTL-compatible inputs and outputs for direct interface compatibility
• Automatic power-down mode activated when chip select is deselected
• CMOS technology optimized for speed and power efficiency

Memory IC Applications

• General-purpose static random-access memory storage
• Embedded systems requiring low-power volatile memory
• Industrial control applications with TTL logic interfaces

Memory IC Procurement Notes

Verify the specific suffix 'N' against official Cypress/Infineon documentation to confirm package type and lead-free status. Confirm end-of-life or obsolescence status through manufacturer channels before procurement planning. Ensure supply chain sources provide valid traceability for this discontinued component series.

Memory IC Selection Notes

Select this component for designs requiring 256Kbit capacity with 55 ns access speed. Verify that the 4.5V to 5.5V operating voltage aligns with system power rails. Consider the low standby power specification for battery-operated or energy-sensitive applications requiring automatic power-down capabilities.

Memory IC Part Context

This part belongs to the CY62256 family of 256K (32K x 8) Static RAM devices manufactured by Cypress Semiconductor. The LL variant specifically denotes low-power characteristics compared to standard versions. The device utilizes CMOS technology to balance performance with power efficiency in parallel memory architectures.

Memory IC Replacement Considerations

Direct substitutes include CY62256LL-55SNXI and CY62256LL-70ZRXIT from the same manufacturer family. Cross-reference pinouts and electrical specifications carefully when considering alternatives from other vendors such as Infineon or Rochester Electronics.