7133LA55G

Overview

The Renesas Electronics Corporation 7133LA55G is a high-speed, 32-kbit (2K x 16) CMOS dual-port static random-access memory. It features fully asynchronous operation with a maximum access time of 55 ns and operates on a single 5V power supply ranging from 4.5V to 5.5V. The device utilizes a 68-pin PGA package designed for through-hole mounting. It supports independent control of the lower and upper bytes for each port, facilitating easy expansion of data bus widths. The component is currently classified as obsolete.

Feature Summary

• True dual-ported architecture allowing simultaneous independent access to the same memory location by two separate ports.
• On-chip arbitration logic manages conflicts between ports, providing a BUSY output flag to indicate resource availability.
• Low-power LA variant design enables battery backup operations with minimal current consumption during retention mode.
• TTL-compatible interface allows direct connection to standard digital logic without additional level shifting.

Applications

• Stand-alone 16-bit dual-port memory systems
• Master dual-port RAM configurations in 32-bit or wider word width systems
• Battery-backed volatile memory applications requiring low standby power

Procurement Notes

Verify component obsolescence status prior to integration, as this part is discontinued. Confirm package authenticity and pin compatibility if sourcing from secondary markets. Review datasheet specifications for electrical limits to ensure system reliability. Check for RoHS compliance variations across manufacturing lots. Validate replacement options if long-term supply assurance is required.

Selection Notes

Select this component when simultaneous bidirectional data access is required within a single memory block. The LA designation indicates low-power characteristics suitable for battery backup scenarios. Ensure the application environment supports the commercial temperature range. Verify that the 68-pin PGA footprint matches the target PCB layout constraints.

Part Context

This device belongs to the 7133 series of high-speed dual-port SRAMs manufactured by Renesas Electronics. It serves as a versatile memory solution for embedded systems requiring concurrent read/write operations. The series includes variants with different access speeds and packaging options to suit various industrial and commercial requirements.

Replacement Considerations

IDT7133SA55G is a documented equivalent part number for this component.