71V3577S85PFG

Product Overview

The 71V3577S85PFG from IDT, Integrated Device Technology Inc is a synchronous SDR SRAM device with 4.5 Mbit of volatile memory, organized as 128K x 36. It uses a parallel interface and is specified for operation at a clock frequency of 87 MHz, with an access time of 8.5 ns. The device operates from a 3.135 V to 3.465 V supply and is packaged in a surface-mount 100-LQFP package, with a 100-TQFP (14 x 14) footprint. The operating temperature range is 0°C to 70°C (TA), supporting board-level designs that require a synchronous SRAM device with a fixed parallel data organization.

Key Features

• 4.5 Mbit volatile SRAM with 128K x 36 memory organization.
• Synchronous SDR technology with an 87 MHz clock frequency.
• Parallel memory interface and 8.5 ns access time.
• 3.135 V to 3.465 V supply voltage range.
• 100-LQFP surface-mount package with a 100-TQFP (14 x 14) footprint.
• 0°C to 70°C (TA) operating temperature range.

Applications

• Embedded controller systems that need local volatile working memory for temporary data and lookup tables.
• Digital signal processing hardware that requires a parallel synchronous SRAM buffer between a processor and other system memory.
• Communications equipment designs where a 36-bit memory organization supports data buffering in a board-level system.

Design & Procurement Notes

Designers should verify that the host controller can drive the parallel interface, match the 87 MHz synchronous timing, and manage the 128K x 36 address and data organization. The 3.135 V to 3.465 V supply window and 0°C to 70°C ambient range should be checked against the board power and thermal budget. The 100-TQFP (14 x 14) surface-mount package requires pad layout and routing for a 100-pin memory device, and the 8.5 ns access time should be considered when planning memory access timing in the memory subsystem. Procurement should consider the 100-LQFP package and 100-TQFP (14 x 14) footprint when planning PCB assembly.