SN74LV594ABQBR TI Shift Register | 16-WQFN (2.5X3.5) | 8-bit, Serial-In Parallel-Out

Product Overview

The SN74LV594ABQBR from Texas Instruments is a low-voltage 8-bit shift register with output latches and 3-state outputs. It operates from 2V to 5.5V, making it ideal for battery-powered and low-power applications. The device features a serial input (SER), a shift register clock (SRCLK), a storage register clock (RCLK), and an output enable (OE). Data is shifted into the shift 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 package is a 16-pin WQFN (2.5x3.5 mm) for space-constrained designs.

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: 2V to 5.5V
• Low power consumption: ICC max 20 µA at 5.5V
• High drive capability: ±8 mA at 4.5V
• Fast propagation delay: 10 ns typical at 5V
• Input hysteresis for noise immunity
• Available in small WQFN package for space-saving

Target Applications

• 5G base station control logic: used for expanding GPIOs in remote radio units
• Automotive dashboard display: driving segment LEDs or indicator lamps
• Industrial automation: PLC output expansion for solenoid valves
• Consumer electronics: LED matrix control in smart home devices
• Medical devices: patient monitoring system data latching

Global Supply Chain & Wholesale Solutions

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產品概述

SN74LV594ABQBR 是德州儀器推出的低電壓8位移位寄存器，帶輸出鎖存器和三態輸出。工作電壓範圍為2V至5.5V，非常適合電池供電和低功耗應用。該器件具有串行輸入（SER）、移位寄存器時鐘（SRCLK）、存儲寄存器時鐘（RCLK）和輸出使能（OE）。數據在SRCLK上升沿移入移位寄存器，並在RCLK上升沿傳輸到存儲寄存器。三態輸出由OE控制。封裝為16引腳WQFN（2.5x3.5 mm），適用於空間受限的設計。

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：2V 至 5.5V
• 低功耗：ICC 最大20 µA (5.5V)
• 高驅動能力：±8 mA (4.5V)
• 快速傳播延遲：典型10 ns (5V)
• 輸入滯回，提高噪聲抗擾度
• 小型WQFN封裝，節省空間

典型應用場景

• 5G基站控制邏輯：用於擴展遠程射頻單元的GPIO
• 汽車儀表盤顯示：驅動段式LED或指示燈
• 工業自動化：PLC輸出擴展，控制電磁閥
• 消費電子：智能家居設備中的LED矩陣控制
• 醫療設備：病人監護系統的數據鎖存

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