71342SA20PF

Overview

The Renesas Electronics Corporation 71342SA20PF is a high-speed, fully asynchronous dual-port static random-access memory (SRAM) with a storage capacity of 32 kbit. The device features a 4K x 8 organization and supports parallel interface access. It operates within a supply voltage range of 4.5 V to 5.5 V and offers an access time of 20 ns. Designed for surface-mount applications, the component is housed in a 64-pin TQFP package. It functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• True dual-ported memory cells enabling simultaneous independent access from either port without wait states.
• Integrated on-chip hardware semaphore logic block for automatic arbitration between ports.
• Automatic power-down feature controlled by chip enable and semaphore signals for low standby power.

Applications

• Systems requiring simultaneous data exchange between two independent processors or controllers.
• High-speed buffering applications where contention must be managed via hardware flags.
• Real-time industrial equipment control systems utilizing asynchronous communication protocols.

Procurement Notes

Verify the specific suffix 'PFG' against official Renesas documentation to confirm pinout compatibility and package dimensions, as variations exist within the series. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into the assembly process. Ensure the selected variant matches the required operating temperature range for the target environment.

Selection Notes

Select this component when true dual-port functionality with hardware arbitration is required for 4K x 8 memory configurations. The 20 ns access speed suits high-throughput asynchronous interfaces. Consider the 64-pin TQFP package constraints for PCB layout. Verify that the system design can accommodate the TTL-compatible 5V logic levels and the specified power supply tolerances.

Part Context

This part belongs to the Renesas 71342LA/SA series of dual-port SRAMs. The 'SA' designation typically indicates standard commercial grade specifications, while the 'LA' variant often includes battery backup capabilities. These devices are engineered for applications demanding conflict-free concurrent access through built-in semaphore mechanisms, distinguishing them from single-port or externally arbitrated memory solutions.

Replacement Considerations

Publicly confirmed substitute part numbers for the 71342SA20PF were not identified in the provided source material. Cross-referencing with legacy IDT part numbers may require verification of electrical parameter equivalence and pinout compatibility through official manufacturer datasheets.