7143SA25PF

Overview

The Renesas Electronics Corporation 7143SA25PF is a high-speed, 32Kb (2K x 16) dual-port static random-access memory (SRAM). It features asynchronous parallel interface operation with a maximum access time of 25 nanoseconds. The device operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. It is housed in a 100-pin Thin Quad Flat Package (TQFP) with dimensions of 14x14 mm. The component supports an industrial operating temperature range from 0°C to +70°C.

Feature Summary

• True dual-ported memory cells allow simultaneous independent access to the same memory location by both ports without conflict.
• On-chip port arbitration logic manages bus contention, providing BUSY inputs and supporting MASTER/SLAVE configurations for wider data buses.
• Separate write control for lower and upper bytes enables flexible expansion of data bus width to 32 bits or more.

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data storage in industrial automation controllers

Procurement Notes

Verify component authenticity through authorized distributors as this part may be discontinued. Confirm package integrity and pin alignment against the 100-TQFP specification. Check RoHS compliance status relative to specific regional regulations. Ensure replacement parts match electrical parameters if sourcing alternatives due to end-of-life status.

Selection Notes

Select this component when simultaneous bidirectional data access is required for system efficiency. The 25ns speed suits applications needing rapid read/write cycles. Verify that the 100-pin TQFP footprint fits the PCB layout constraints. Ensure the design accommodates the 5V logic levels and TTL-compatible I/O requirements.

Part Context

This device belongs to the 7143SA series of dual-port SRAMs from Renesas. It shares architectural similarities with other members like the 7143SA20PF and 7143SA35PF, differing primarily in access speed and package options. The series utilizes IDT's MASTER/SLAVE approach for error-free operation in 32-bit systems.

Replacement Considerations

Consider the 7143SA20PF for faster access times or the 7143SA35PF for relaxed timing requirements. Verify pin compatibility and electrical specifications before substitution. Check for updated packaging or lead-free variants if environmental compliance is mandatory.