71V3578S150PFG

Overview

The IDT71V3578S150PFG is a high-speed Synchronous ZBT SRAM organized as 256K x 18. It operates with a 3.3V core power supply and supports clock frequencies up to 150 MHz, providing a 3.8 ns clock access time. The device features pipelined outputs, a burst counter, and single-cycle deselect capabilities. It is packaged in a JEDEC standard 100-pin plastic thin quad flatpack (TQFP).

Feature Summary

• Supports high system speed with 150 MHz clock frequency and 3.8 ns access time.
• Features self-timed write cycles with global write control and byte write enables.
• Includes LBO input for selecting interleaved or linear burst modes.
• Offers optional Boundary Scan JTAG interface compliant with IEEE 1149.1.

Applications

• High-performance cache memory systems
• Network infrastructure equipment
• Telecommunications hardware

Procurement Notes

Verify the specific suffix 'PFG' against the manufacturer's official datasheet to confirm the package type and RoHS compliance status. Ensure the operating temperature range matches the application requirements, as commercial variants typically cover 0°C to 70°C. Cross-reference the part number with current Renesas Electronics documentation, as IDT assets have been acquired.

Selection Notes

Select this component when a 256K x 18 synchronous SRAM configuration is required for high-speed data buffering. The 3.3V I/O level must be compatible with the host processor or FPGA voltage domains. Consider the 100-pin TQFP package constraints regarding PCB space and thermal dissipation compared to BGA alternatives within the same family.

Part Context

This part belongs to the IDT 71V3578/76 series of 3.3V Synchronous SRAMs. These devices are designed to provide high bandwidth through pipelined architectures and burst mode operations. The series supports both interleaved and linear burst sequences, making them suitable for applications requiring efficient data transfer rates without dead cycles between read and write operations.

Replacement Considerations

The IDT71V3578S150BQG is a verified pin-compatible alternative in a 165-ball BGA package offering identical electrical specifications. Other members of the 71V3578 family may serve as substitutes if package form factor changes are acceptable.