71V321L25TFG8

Overview

The 71V321L25TFG8 is a 16-kbit dual-port static random-access memory organized as 2K x 8. It features asynchronous parallel access with a maximum access time of 25 ns. The device operates on a single 3.0 V to 3.6 V power supply and draws a maximum current of 100 mA. It supports an operating temperature range from 0°C to +70°C and is housed in a 64-pin TQFP package.

Feature Summary

• True dual-ported architecture enabling simultaneous independent access to the same memory location by both ports.
• On-chip port arbitration logic manages bus conflicts during concurrent read/write operations.
• Interrupt flags facilitate direct communication between the two ports for status signaling.

Applications

• High-speed data buffering in telecommunications equipment
• FIFO buffer applications in digital signal processing systems
• Dual-processor cache memory architectures

Procurement Notes

Verify RoHS compliance status through official Renesas documentation, as historical records indicate variations across manufacturing sites. Confirm moisture sensitivity level (MSL 3) handling requirements prior to assembly. Ensure the specific suffix matches the required packaging format, as reel versus tray options may affect availability and storage conditions.

Selection Notes

Select this component when simultaneous bidirectional data transfer is required without external arbitration hardware. Compare against the 71V321L25TFG variant if industrial temperature ranges (-40°C to +85°C) are necessary instead of commercial grades. Verify that the 25 ns speed meets system timing constraints compared to slower 35 ns or 55 ns alternatives.

Part Context

This part belongs to the Renesas 71V321L series of high-speed dual-port SRAMs. It shares architectural similarities with other members like the 71V321L35 but differs in access speed and temperature rating. The series is designed for applications requiring low-latency data exchange between independent processors or buses.

Replacement Considerations

The 71V321L25TFGI is listed as a similar alternative. Verify pinout compatibility and electrical specifications before substitution. Note that suffix changes may indicate differences in packaging or environmental ratings rather than functional equivalence.