71V3578S150PFG

Overview

The IDT71V3578S150PFI is a synchronous single data rate (SDR) static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 4.5 megabits, organized as 256 kilowords by 18 bits. The device operates with a parallel interface and supports a maximum clock frequency of 150 MHz, achieving a typical access time of 3.8 nanoseconds. It functions within a supply voltage range of 3.135 volts to 3.465 volts and is rated for an operating temperature range from -40°C to +85°C. The component is housed in a 100-lead Thin Quad Flatpack (TQFP) package measuring 14x14 millimeters.

Feature Summary

• Supports high-speed parallel data transfer via synchronous SDR architecture
• Provides non-volatile data retention capabilities when powered
• Designed for surface-mount installation on printed circuit boards

Applications

• High-performance embedded systems requiring fast data buffering
• Industrial control units needing reliable volatile memory storage
• Telecommunications equipment utilizing parallel bus interfaces

Procurement Notes

Verify the exact suffix designation, as official documentation lists IDT71V3578S150PFI. Confirm RoHS compliance status, as specific listings indicate non-compliance. Check current production status, as some sources classify this part as obsolete or end-of-life. Ensure the 100-TQFP package dimensions match your PCB footprint requirements before ordering.

Selection Notes

Select this component when a 4.5Mb synchronous SRAM with a 150MHz clock speed is required. The 18-bit word width suits applications needing wide data paths without external multiplexing. Consider the industrial temperature range if the environment exceeds standard commercial limits. Verify that the 3.3V logic levels are compatible with the host processor's I/O specifications.

Part Context

This device belongs to the 71V3578 family of synchronous SRAMs from Renesas. Similar variants include the 71V3578S133PFGI, which offers a lower 133MHz clock speed, and the 71V3579S85PFG8, which operates at 87MHz. These parts share the same memory organization and package type but differ in performance characteristics and timing parameters.

Replacement Considerations

The IS61LPS25618A-200TQLI from Integrated Silicon Solution Inc is listed as a similar alternative. Verify pin compatibility and electrical specifications before substitution.