IDT71256SA12YGI

Memory IC Overview

The IDT71256SA12YGI is a 32K x 8 asynchronous static random access memory (SRAM) manufactured by Renesas Electronics Corporation. It features a parallel interface with a maximum access time of 12 ns. The device operates on a single 4.5V to 5.5V power supply and supports an industrial temperature range from -40°C to +85°C. It is housed in a 28-pin small outline junction (SOJ) package with a width of 0.300 inches (7.62 mm). The component utilizes fully static CMOS circuitry, requiring no clocks or refresh cycles for operation.

Memory IC Feature Summary

• Fully static asynchronous architecture eliminates the need for clock signals or periodic refresh operations.
• Low standby current mode significantly reduces system power consumption and cooling requirements.
• Input and output pins are directly compatible with TTL logic levels.

Memory IC Applications

• High-speed data buffering in embedded systems
• Secondary cache memory for microprocessors
• Industrial control system storage

Memory IC Procurement Notes

Verify component authenticity through authorized channels as this part may be obsolete. Confirm package dimensions and pinout compatibility with existing PCB layouts. Check for lead-free status if RoHS compliance is required for the target assembly. Ensure voltage levels match the 4.5V to 5.5V specification to prevent damage.

Memory IC Selection Notes

Select this component when a 12 ns access speed is required within the 32K x 8 capacity range. It is suitable for designs needing industrial temperature stability and TTL-compatible I/O. Consider alternative packages if surface mount space is limited, as this model uses a specific SOJ form factor.

Memory IC Part Context

This part belongs to the IDT71256 family of 5V CMOS SRAMs. It shares architectural similarities with other variants in the series but is distinguished by its specific 12 ns speed grade and industrial temperature rating. The 'YGI' suffix typically denotes the SOJ package and industrial temperature range.

Memory IC Replacement Considerations

Check for direct pin-to-pin replacements from manufacturers such as Cypress or Alliance Memory. Verify that any substitute maintains the 12 ns access time and 5V operating voltage. Ensure the replacement package matches the 28-SOJ footprint.