7133LA35G

Overview

The Renesas Electronics Corporation 7133LA35G is a high-speed, 32Kb (2K x 16) dual-port static random-access memory. It features asynchronous parallel interface operation with a maximum access time of 35ns. The device operates on a single 4.5V to 5.5V power supply and supports TTL-compatible logic levels. It utilizes low-power CMOS technology designed for battery backup applications, offering data retention at 2V. The component is housed in a 68-pin ceramic PGA package suitable for through-hole mounting.

Feature Summary

• True dual-ported memory cells allow simultaneous independent access to the same memory location from either port without conflict.
• Low-power LA series design enables battery backup operation with typical standby consumption of 200μW per port at 2V retention voltage.
• Integrated on-chip port arbitration logic manages bus contention automatically when both ports attempt to write simultaneously.

Applications

• Stand-alone 16-bit dual-port RAM systems requiring asynchronous data exchange
• Master/Slave configurations expanding data bus width to 32 bits or more using companion slave devices
• Industrial control systems requiring reliable data retention during primary power loss

Procurement Notes

Verify current availability status as lead times may vary significantly due to manufacturing lifecycle stages. Confirm RoHS compliance and lead finish specifications against project requirements, noting that specific tin-lead finishes may be subject to end-of-life processes. Ensure the 68-pin PGA package dimensions match the target PCB footprint before finalizing procurement orders.

Selection Notes

Select this component when true simultaneous dual-port access is required for 16-bit data paths. The LA designation indicates low-power characteristics suitable for battery-backed environments. Verify that the 35ns access speed meets system timing constraints. Consider the 68-pin PGA package if through-hole assembly is mandated by mechanical or reliability standards.

Part Context

This part belongs to the IDT/Renesas 7133SA/LA family of high-speed dual-port SRAMs. The 'LA' suffix denotes the low-power variant optimized for reduced active and standby currents compared to standard SA versions. The family supports various access speeds and packages, with this specific model providing a balance of moderate speed and low power consumption in a ceramic PGA form factor.

Replacement Considerations

Direct functional substitutes include other 7133LA series variants with compatible pinouts and electrical characteristics. Verify package compatibility when considering alternatives, as the 68-pin PGA footprint differs from PLCC or TQFP options within the same family.