7142SA100P

Overview

The 7142SA100P is a high-speed, 16K-bit (2K x 8) dual-port static random-access memory (SRAM) manufactured by Renesas Electronics Corporation. It operates asynchronously with a maximum access time of 100 ns and supports parallel data interfaces. The device functions as a slave dual-port RAM when paired with the 7132 master dual-port RAM in HD64F7144F50V microcontroller systems. It requires a supply voltage between 4.5 V and 5.5 V and operates within a temperature range of 0°C to 70°C. The component is housed in a 48-pin plastic dual in-line package (PDIP) designed for through-hole mounting.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate processors or bus masters
• Asynchronous operation allowing flexible timing integration without strict clock synchronization requirements
• Designed specifically for use as a slave memory unit in conjunction with designated master dual-port SRAM devices

Applications

• Slave memory expansion in HD64F7144F50V SuperH microcontroller-based embedded systems
• High-speed data buffering in asynchronous communication interfaces
• Shared memory storage in multi-processor architectures requiring independent port access

Procurement Notes

Verify RoHS compliance status carefully, as this specific part number may not meet current environmental directives. Confirm package integrity upon receipt, as PDIP components are susceptible to pin bending during handling. Check manufacturing date codes against project lifecycle requirements due to potential end-of-life status. Ensure supply chain sources provide authentic Renesas Electronics products to avoid counterfeit risks associated with legacy memory components.

Selection Notes

Select this component only when a 48-pin DIP form factor is mandatory for the target hardware design. Verify that the system power supply strictly maintains the 4.5 V to 5.5 V operating range to ensure reliable performance. Consider the 100 ns access speed limitations compared to modern high-speed SRAM alternatives if latency is critical. Confirm compatibility with the intended master dual-port controller before finalizing the bill of materials.

Part Context

This component belongs to the 7142 series of dual-port SRAMs, which are engineered for high-performance embedded applications. It serves as a complementary memory solution to the 7132 series master devices, facilitating complex data exchange protocols in industrial and automotive control systems. The 7142SA100P represents a legacy technology node optimized for through-hole assembly processes prevalent in earlier generation electronic designs.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific component are not available in the provided documentation. Due to the discontinued status and specialized dual-port interface requirements, direct pin-to-pin replacements may not exist. Evaluate newer dual-port SRAM families from Renesas or other manufacturers, ensuring functional compatibility with the host master controller.