7140SA55P

Overview

The Renesas Electronics Corporation 7140SA55P is an asynchronous dual-port static random access memory (SRAM) device. It features a storage capacity of 8 kbit organized as 1K x 8 bits. The component utilizes a parallel interface with a maximum access time of 55 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and has a maximum power supply current of 110 mA. The device supports through-hole installation in a 48-PDIP package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports.

Applications

• Asynchronous data buffering in embedded systems.

Procurement Notes

Verify the component status, as official sources indicate this part number is discontinued. Confirm RoHS compliance requirements, as documentation lists it as non-compliant. Check for valid substitute part numbers from the manufacturer before finalizing procurement plans due to limited availability.

Selection Notes

Select this component only if legacy support for the 48-PDIP through-hole package is required. Ensure the design accommodates the specific 4.5V to 5.5V voltage range and 55 ns timing constraints. Verify that the discontinuation status does not conflict with long-term production lifecycle requirements.

Part Context

This SRAM belongs to the 7140SA series, which provides dual-port memory solutions. The 7140SA55P specifically denotes the 55 ns speed grade variant within this family, offering 8 kbit capacity in a standard DIP format for industrial applications requiring reliable asynchronous memory access.

Replacement Considerations

Official datasheets list IDT7140SA55P as an alias for this component. No other distinct replacement part numbers are confirmed in the provided documentation.