7143LA25PF8

Overview

The Renesas Electronics Corporation 7143LA25PF8 is a high-speed, 32-kbit (2K x 16) dual-port static random-access memory (SRAM). It operates asynchronously with a maximum access time of 25 ns and supports a single 5V power supply within the 4.5V to 5.5V range. The device features true dual-ported memory cells allowing simultaneous independent access to the same location from either port. It includes on-chip arbitration logic and BUSY inputs for seamless integration in multi-master systems without external discrete logic. The component is housed in a 100-pin TQFP surface-mount package.

Feature Summary

• True dual-ported architecture enabling simultaneous independent read/write operations from both ports
• On-chip port arbitration logic with BUSY input signals for master/slave system configurations
• Separate write control for lower and upper bytes to facilitate data bus expansion
• TTL-compatible single 5V power supply operation

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Network switch and router packet storage applications
• Industrial control systems requiring fast asynchronous data exchange

Procurement Notes

Verify the specific suffix 'PF8' against the official Renesas datasheet to confirm the exact package variant and temperature grade. Ensure compatibility with existing PCB footprints for the 100-pin TQFP configuration. Check for moisture sensitivity levels and reflow soldering profile requirements prior to assembly. Confirm availability status as this series may have limited production runs or obsolescence notices.

Selection Notes

Select this component when a 32-kbit capacity with independent dual-port access is required for 5V logic systems. It is suitable for designs needing 25 ns performance without complex external arbitration circuitry. Consider alternative packages if pin count constraints exist, or lower speed variants if power consumption is critical. Verify that the industrial temperature range meets environmental specifications.

Part Context

This part belongs to the IDT/Renesas 7143LA series of high-speed dual-port SRAMs. These devices are designed to simplify system design by integrating arbitration logic directly onto the chip. They are commonly used in applications where two processors need to share memory resources efficiently. The 7143LA series offers various speed grades and package options to suit different performance and form factor requirements.

Replacement Considerations

Check for direct replacements such as the 7143SA25 series for similar specifications. Verify pinout compatibility before substituting with other dual-port SRAM families. Consult Renesas documentation for any updated equivalents or recommended upgrades.