71V2546S133BG

Overview

The 71V2546S133BG is a 4.5 Mbit synchronous static random access memory (SRAM) organized as 128K x 36. It operates with a 3.3V power supply and supports a maximum clock frequency of 133 MHz. The device features a parallel interface with an access time of 4.2 ns. It is housed in a 119-pin plastic ball grid array (PBGA) package measuring 14x22 mm.

Feature Summary

• Zero Bus Turnaround (ZBT) technology eliminates dead cycles between read and write operations.
• Single Read/Write control pin simplifies interface logic by removing the need for separate output enable control.
• Positive clock-edge triggered registers for address, data, and control signals support fully pipelined applications.

Applications

• High-performance processor secondary cache systems
• Network routing and switching equipment
• Telecommunications infrastructure hardware

Procurement Notes

This component has reached end-of-life status. Renesas Electronics issued a product discontinuance notification effective January 3, 2024. Availability is restricted, and manufacturers will cease production. Verify current stock levels and last-time-buy options through authorized channels before finalizing design implementations.

Selection Notes

Select this part for designs requiring high-speed synchronous SRAM with ZBT capabilities. Ensure the system supports 3.3V logic levels and utilizes a 119-pin PBGA footprint. Consider alternative components if long-term supply continuity is required due to the discontinued status.

Part Context

The 71V2546S133BG belongs to the 71V2546 series of Zero Bus Turnaround synchronous SRAMs. This family is designed to maximize bus efficiency in high-speed digital systems by minimizing turnaround latency between data transfer directions.

Replacement Considerations

IDT71V2546S133BG