SN74AHC594PW TI Shift Register | 16-TSSOP | 8-Bit, Serial-In/Parallel-Out

Product Overview

The SN74AHC594PW from Texas Instruments is an 8-bit shift register with output latches and 3-state outputs. It features a serial input (SER), a shift clock (SRCLK), a storage register clock (RCLK), and an output enable (OE). Data is shifted into the register on the rising edge of SRCLK and transferred to the storage register on the rising edge of RCLK. The 3-state outputs are controlled by OE. The device operates over a wide voltage range of 2 V to 5.5 V, making it suitable for interfacing with both 3.3 V and 5 V systems. Housed in a compact 16-TSSOP package, it is ideal for space-constrained applications.

Detailed Technical Specifications

Key Features

• 8-bit serial-in, parallel-out shift register with storage register
• 3-state outputs for bus-oriented applications
• Wide operating voltage range: 2 V to 5.5 V
• High noise immunity: VNIH = VNIL = 28% of VCC
• Low power consumption: ICC = 4 µA max at 25°C
• Output drive capability: ±8 mA at 5 V
• Inputs are overvoltage tolerant up to 5.5 V
• ESD protection exceeds JESD 22 (2000-V HBM, 1000-V CDM)

Target Applications

The SN74AHC594PW is ideal for use in a variety of applications including:

• 5G base stations: for control and status monitoring of RF modules
• Automotive dashboard displays: for driving LED indicators and segment displays
• Industrial automation: for expanding GPIO in PLCs and remote I/O modules
• Consumer electronics: for keypad scanning and LED matrix control
• Medical devices: for data acquisition and control in portable monitors

Global Supply Chain & Wholesale Solutions

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• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

SN74AHC594PW 是德州儀器（TI）推出的一款帶輸出鎖存器和三態輸出的8位移位寄存器。它具有串行輸入（SER）、移位時鐘（SRCLK）、存儲寄存器時鐘（RCLK）和輸出使能（OE）。數據在SRCLK的上升沿移入寄存器，並在RCLK的上升沿傳輸到存儲寄存器。三態輸出由OE控制。該器件的工作電壓範圍為2 V至5.5 V，適合與3.3 V和5 V系統接口。採用緊湊的16-TSSOP封裝，適用於空間受限的應用。

詳細技術參數

核心特性

• 8位串行輸入、並行輸出移位寄存器，帶存儲寄存器
• 三態輸出，適用於總線應用
• 寬工作電壓範圍：2 V 至 5.5 V
• 高抗噪能力：VNIH = VNIL = 28% VCC
• 低功耗：ICC = 4 µA 最大值 (25°C)
• 輸出驅動能力：±8 mA (5 V)
• 輸入過壓耐受能力高達5.5 V
• ESD保護超過JESD 22 (2000-V HBM, 1000-V CDM)

典型應用場景

SN74AHC594PW 適用於多種應用，包括：

• 5G基站：用於射頻模塊的控制和狀態監控
• 汽車儀表盤顯示：用於驅動LED指示燈和段碼顯示
• 工業自動化：用於PLC和遠程I/O模塊的GPIO擴展
• 消費電子：用於鍵盤掃描和LED矩陣控制
• 醫療設備：用於便攜式監護儀的數據採集和控制

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