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IDT7201LA35SO Asynchronous FIFO

Updated: 2026-08-05

Overview

The IDT7201LA35SO is a high-performance CMOS FIFO (First-In-First-Out) memory integrated circuit designed for data buffering applications. This device features a 1024 x 9 memory configuration, making it suitable for temporary data storage in various digital systems. As a member of IDT's 7200 series FIFO family, this component is particularly valued in industrial and communication applications where reliable data transfer between asynchronous systems is required. The 'LA35' designation indicates its speed grade and operating characteristics.

Structure and Working Principle

EDI8808CA55CB 电子元器件 NA 规格书 数据手册 资料深圳市瑞祥辉半导体有限公司

The IDT7201LA35SO consists of a 9-bit wide memory array organized as 1024 words deep. It operates on the FIFO principle where the first data written is the first to be read out. The device includes separate read and write pointers that automatically increment after each operation. Key internal components include the memory array, control logic, and flag generation circuitry. The chip features independent read and write clocks (asynchronous operation), allowing it to bridge systems operating at different frequencies. Status flags (Empty, Full, Half-Full) provide system control signals.

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Key Features

The IDT7201LA35SO offers several notable features including a 35ns access time, making it suitable for high-speed applications. Its CMOS technology ensures low power consumption while maintaining robust performance. The device operates on a single 5V power supply, simplifying system integration. Additional features include three-state outputs for bus compatibility, retransmit capability for data recovery, and expandable depth and width configurations. The component is designed for industrial temperature range operation (-40°C to +85°C), ensuring reliability in demanding environments.

Application Areas

This FIFO memory chip finds extensive use in data communication systems, particularly in buffering applications between devices with different data rates. Common applications include network equipment, telecommunications systems, and industrial automation controls. In digital signal processing systems, the IDT7201LA35SO serves as an effective data buffer between processors and peripherals. It's also used in medical imaging equipment, military systems, and other applications requiring reliable asynchronous data transfer with status monitoring capabilities.

Maintenance and Precautions

IDT7201LA35SO 电子元器件 RENESAS瑞萨 封装SOP-28 批号25+深圳市永芯易科技有限公司

Proper handling of the IDT7201LA35SO requires ESD (electrostatic discharge) precautions during installation and maintenance. Always use grounded wrist straps and work on ESD-safe surfaces when handling the component. The device should be stored in anti-static packaging when not in use. System designers should ensure power supply decoupling near the device to prevent noise issues. Avoid exceeding the absolute maximum ratings for voltage and current specified in the datasheet. Thermal considerations are generally minimal due to the CMOS technology's low power characteristics.

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B2B Procurement Guide

When procuring IDT7201LA35SO chips, verify the manufacturer's part number and revision to ensure compatibility with existing designs. Consider purchasing from authorized distributors to guarantee authenticity, as counterfeit semiconductors can be a concern in the market. Evaluate lead times carefully, as some older CMOS devices may have extended delivery periods. For high-volume purchases, negotiate pricing based on quantity tiers. Always request manufacturer's certification and lot traceability documentation for quality assurance purposes.

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