7134SA45P

Overview

The Renesas Electronics Corporation 7134SA45P is a high-speed 4K x 8 Dual-Port Static RAM designed for systems requiring simultaneous access without on-chip hardware arbitration. It features fully asynchronous operation from either port and supports battery backup with 2V data retention. The device operates on a single 5V power supply (±10%) and includes an automatic power-down feature controlled by CE to minimize standby power. It is housed in a 48-PDIP package.

Feature Summary

• True dual-ported memory cells allow simultaneous access of the same memory location
• Fully asynchronous operation from either port eliminates wait states
• Automatic power down feature controlled by CE enables low standby power mode
• TTL-compatible single 5V power supply simplifies system design

Applications

• Systems requiring external arbitration for simultaneous dual-port access
• Applications intolerant of wait states during memory operations
• Battery-backed memory systems requiring 2V data retention capability

Procurement Notes

Verify component authenticity through authorized channels as this part is discontinued. Confirm RoHS compliance status, which may be non-compliant depending on manufacturing date. Check datasheet revisions for any pinout or electrical parameter updates prior to integration into new designs.

Selection Notes

Select this component when true dual-port functionality with asynchronous access is required. Ensure the system can handle potential contention if both ports access the same location simultaneously. Verify that the 48-PDIP package fits the target PCB layout and that the 5V logic levels match the interface requirements.

Part Context

This part belongs to the 7134SA series of high-speed dual-port SRAMs. It shares architectural similarities with other variants in the family but differs in access speed and packaging. The SA suffix typically denotes specific speed grades and commercial temperature ranges compared to industrial or military grade alternatives.

Replacement Considerations

IDT7134SA45P is listed as an alias for this component. No distinct substitute part numbers are confirmed in public documentation.