7134LA70P

Overview

The Renesas Electronics Corporation 7134LA70P is a high-speed 4K x 8 Dual-Port Static Random Access Memory (SRAM) designed for systems requiring simultaneous access to the same memory location without on-chip hardware arbitration. This asynchronous component features parallel interface technology and operates within a voltage range of 4.5V to 5.5V. It supports a maximum access time of 70 ns and includes an automatic power-down feature controlled by chip enable signals. The device is housed in a 48-pin PDIP package and is rated for commercial operating temperatures between 0°C and +70°C.

Feature Summary

• True dual-ported memory cells enabling simultaneous independent access to identical memory locations from both ports.
• Fully asynchronous operation allowing flexible timing control without external clock synchronization requirements.
• Automatic low standby power mode activated via chip enable inputs to reduce overall system energy consumption.

Applications

• Systems requiring external arbitration for simultaneous dual-port memory access
• Applications intolerant of wait states during memory operations
• Hardware designs capable of withstanding contention when both sides access the same location

Procurement Notes

Verify component authenticity through authorized channels as this part is discontinued. Confirm RoHS compliance status, which is listed as non-compliant in available records. Check for moisture sensitivity level requirements during handling. Ensure replacement strategies account for end-of-life status and potential supply chain limitations for legacy components.

Selection Notes

Select this component only if true dual-port architecture with external arbitration is required. Verify that the 70 ns access speed meets system timing constraints. Ensure the 48-pin DIP package fits the target PCB layout. Consider the commercial temperature range limits for environmental suitability. Evaluate alternative packages like PLCC or LCC if surface mount technology is preferred over through-hole installation.

Part Context

The 7134 series represents a family of high-speed dual-port SRAMs manufactured by Renesas Electronics. These devices are engineered for applications where concurrent read/write operations from two independent ports are necessary. The LA variant specifically denotes standard logic levels compatible with TTL interfaces. This series supports battery backup operations for data retention in specific configurations.

Replacement Considerations

IDT7134LA70P is a documented alias for this component. Other variants in the 7134LA70 family include 7134LA70J and 7134LA70JI8, offering different packaging options such as PLCC. Verify pin compatibility and electrical specifications before substituting with these alternatives.