7143SA25G

Overview

The Renesas Electronics Corporation 7143SA25G is a high-speed, 32Kb (2K x 16) dual-port static random-access memory. It features asynchronous parallel interface with a maximum access time of 25 ns. The device operates on a single 5V power supply within a voltage range of 4.5V to 5.5V and supports a maximum supply current of 300 mA. Designed for through-hole mounting, it utilizes a 68-pin PGA package measuring 29.46x29.46 mm. The component functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• True dual-ported memory cells enable simultaneous independent access to the same memory location from both ports without conflict.
• On-chip port arbitration logic manages bus contention automatically, eliminating the need for external discrete logic in master/slave configurations.
• Separate write control signals for the upper and lower bytes of each port allow flexible data bus expansion to 32 bits or wider.
• Supports battery backup operation with 2V data retention capability while maintaining TTL-compatible single 5V power supply requirements.

Applications

• High-speed real-time engine applications requiring concurrent data processing
• Industrial equipment systems utilizing 32-bit microcontrollers
• Master/Slave dual-port RAM architectures for error-free full-speed operation

Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm that the specific package variant matches the required PCB footprint. Check for end-of-life status implications regarding long-term availability. Ensure environmental compliance requirements are met as RoHS status may vary by production batch. Validate thermal specifications against the intended operational environment constraints.

Selection Notes

Select this component when simultaneous bidirectional access to shared memory is critical for system performance. The 25 ns access speed suits applications demanding rapid data exchange between processors. Consider the 68-pin PGA package for through-hole assembly needs. Evaluate the 5V supply requirement against existing system voltage rails. Assess the industrial temperature range suitability for the deployment environment.

Part Context

The 7143SA series belongs to Renesas' high-speed dual-port SRAM family, designed for complex memory systems. These devices implement the IDT Master/Slave Dual-Port RAM approach to facilitate seamless integration into wider memory architectures. The series offers various access speeds and packaging options to accommodate different performance and physical layout requirements in embedded systems.

Replacement Considerations

Public confirmed substitute part numbers: None identified.