CD74HC573M TI Latches | 20-SOIC | 8-Bit, Non-Inverting, 3-State

Product Overview

The CD74HC573M from Texas Instruments is a high-speed CMOS octal transparent latch with 3-state outputs. It is designed for use in memory address latching, I/O port expansion, and bus driving applications. The device features eight D-type latches with a common latch enable (LE) and output enable (OE) control. When LE is high, the outputs follow the data inputs; when LE goes low, the data is latched. The OE input controls the 3-state outputs, allowing connection to a common bus. The CD74HC573M is offered in a 20-pin SOIC package, providing a compact solution for space-constrained designs.

Detailed Technical Specifications

Key Features

• 8-bit transparent latch with 3-state outputs
• Wide operating voltage range: 2V to 6V
• High noise immunity: typical VNIH = VNIL = 28% VCC
• Low power consumption: 80µA max ICC
• Balanced propagation delays: tPLH ≈ tPHL
• Inputs accept voltages up to VCC
• Outputs can drive up to 10 LSTTL loads
• Industrial temperature range: -55°C to +125°C
• Pb-free and RoHS compliant

Target Applications

• Memory address latching in 5G base station controllers
• I/O port expansion for automotive dashboard displays
• Bus interface for industrial PLCs
• Data buffering in networking equipment like routers and switches
• Register storage in FPGA configuration circuits

Global Supply Chain & Wholesale Solutions

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• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

CD74HC573M 是德州儀器 (TI) 生產的高速 CMOS 八路透明鎖存器，具有三態輸出。該器件適用於存儲器地址鎖存、I/O 端口擴展和總線驅動等應用。它包含八個 D 型鎖存器，帶有公共鎖存使能 (LE) 和輸出使能 (OE) 控制。當 LE 為高電平時，輸出跟隨數據輸入；當 LE 變為低電平時，數據被鎖存。OE 輸入控制三態輸出，允許連接到公共總線。CD74HC573M 採用 20 引腳 SOIC 封裝，為空間受限的設計提供了緊湊的解決方案。

詳細技術參數

核心特性

• 八路透明鎖存器，帶三態輸出
• 寬工作電壓範圍：2V 至 6V
• 高抗噪能力：典型 VNIH = VNIL = 28% VCC
• 低功耗：最大 ICC 80µA
• 平衡傳播延遲：tPLH ≈ tPHL
• 輸入可接受高達 VCC 的電壓
• 輸出可驅動多達 10 個 LSTTL 負載
• 工業溫度範圍：-55°C 至 +125°C
• 無鉛且符合 RoHS 標準

典型應用場景

• 5G 基站控制器中的存儲器地址鎖存
• 汽車儀表盤顯示的 I/O 端口擴展
• 工業 PLC 的總線接口
• 路由器、交換機等網絡設備的數據緩衝
• FPGA 配置電路中的寄存器存儲

環球供應鏈與批發合作夥伴方案

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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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