CY7C194-20VC

Memory IC Overview

The CY7C194-20VC is a standard asynchronous Static RAM (SRAM) manufactured by Cypress Semiconductor Corp. It features a memory organization of 64K x 4, providing a total storage capacity of 256 kilobits. The device supports an access time of 20 nanoseconds and operates within a voltage supply range of 4.5V to 5.5V. It utilizes CMOS technology and is housed in a 28-pin Plastic Small Outline J-Lead (SOJ) package with a width of 0.300 inches.

Memory IC Feature Summary

• Asynchronous parallel interface for standard SRAM operations
• CMOS technology ensuring low power consumption
• Automatic power-down capability to reduce energy usage during idle states

Memory IC Applications

• General-purpose data buffering in embedded systems
• Cache memory implementation in microprocessor-based designs
• Temporary storage in industrial control applications

Memory IC Procurement Notes

Verify the specific suffix 'VC' against official Cypress documentation to confirm the exact package type and temperature rating. Ensure compatibility with existing board layouts regarding the SOJ footprint. Confirm RoHS compliance status as historical Cypress parts may vary in regulatory adherence depending on the manufacturing batch and current distributor sourcing.

Memory IC Selection Notes

Select this component when a 64K x 4 configuration is required with a 20ns speed grade. Compare against the CY7C194-25VC if slower speeds are acceptable for cost reduction. Consider the CY7C194-10VC if faster access times are necessary for high-performance applications. Evaluate package availability as SOJ packages may have limited long-term supply compared to surface-mount alternatives.

Memory IC Part Context

This part belongs to the CY7C194 family of asynchronous SRAMs from Cypress Semiconductor. The family includes variants with different access speeds such as 10ns, 15ns, and 25ns. These devices are designed for general-purpose memory applications requiring non-volatile-like retention without the complexity of flash programming. The CY7C194 series is widely used in legacy and industrial systems.

Memory IC Replacement Considerations

Direct pin-compatible substitutes include other CY7C194 variants with different speed grades, such as CY7C194-10VC or CY7C194-25VC. Cross-manufacturer replacements require verification of pinout, voltage levels, and timing parameters. Rochester Electronics may offer recycled or new old stock versions of this part number.