IS62C256-70U

Memory IC Overview

The IS62C256-70U is a low power, 32K x 8 CMOS static RAM fabricated using high-performance technology. It features a 70 ns access time and operates on a single 5V power supply with a tolerance of ±10%. The device supports commercial temperature ranges from 0°C to +70°C. It utilizes active LOW Chip Select (CS), Output Enable (OE), and Write Enable (WE) inputs for control. The component is housed in a 28-pin plastic SOP package.

Memory IC Feature Summary

• Fully static operation requiring no clock or refresh cycles
• TTL compatible inputs and outputs for direct interface with logic systems
• Low standby power consumption in both CMOS and TTL modes
• Pin compatible with other 32K x 8 SRAMs in plastic SOP packages

Memory IC Applications

• Microcontroller external data memory expansion
• Industrial equipment local temporary storage
• Battery backup systems utilizing retention voltage capabilities
• Embedded systems requiring simple asynchronous control logic

Memory IC Procurement Notes

Verify the specific suffix 'U' confirms the Plastic SOP package type rather than TSOP. Confirm the absence of an 'I' suffix indicates the Commercial temperature range (0°C to +70°C) instead of Industrial (-40°C to +85°C). Ensure the datasheet revision matches the required timing specifications for your system design.

Memory IC Selection Notes

Select this component when a 70 ns access speed is sufficient for the application. It is suitable for designs strictly operating at 5V without needing lower voltage options. Consider pin compatibility if replacing existing 32K x 8 SRAMs in SOP packages. Verify that the commercial temperature range meets the environmental requirements of the target deployment.

Memory IC Part Context

This part belongs to the IS62C256 family of low power CMOS static random-access memories. The series offers various speed grades and packaging options including TSOP and SOP variants. It represents a standard solution for general-purpose volatile memory applications where simple asynchronous control and 5V operation are preferred over higher density or lower voltage alternatives.

Memory IC Replacement Considerations

IS62C256-70UI serves as the industrial temperature version of this component. Other 32K x 8 SRAMs in plastic SOP packages may be pin compatible but require verification of electrical parameters.