7140LA100P

Overview

The Renesas Electronics Corporation 7140LA100PDG is an asynchronous dual-port static random-access memory (SRAM) IC. It provides a storage capacity of 8 kilobits, organized as 1K words by 8 bits. The device features a parallel interface with a maximum access time of 100 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports through-hole mounting in a 48-pin dual in-line package (DIP). The component is designed for industrial temperature ranges from 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling simultaneous independent access by two processors
• Asynchronous operation without requiring a system clock signal
• Parallel data interface for direct connection to microprocessors

Applications

• High-speed data buffering between processing units
• Cache memory implementation in embedded systems
• Real-time data logging applications

Procurement Notes

This specific part number is officially discontinued by the manufacturer. Verification of availability requires checking authorized distributors for remaining stock or obsolete inventory. Ensure that any sourced units are genuine components from verified suppliers to avoid counterfeit risks associated with end-of-life products.

Selection Notes

Select this component when a dual-port SRAM with a 100ns access speed is required for legacy designs. The 48-PDIP package is suitable for through-hole prototyping or manufacturing. Verify that the system voltage aligns with the 4.5V to 5.5V operating range and that the 1Kx8 organization meets the memory requirements.

Part Context

The 7140LA series belongs to Renesas' high-performance CMOS dual-port SRAM family. This series offers various speed grades and packaging options. The 'LA' suffix typically denotes specific speed and package variations within the broader product line, providing flexibility for different application timing constraints.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status, alternative solutions may require redesigning the circuit board to accommodate different pinouts or package types.