SN74LV594ADR TI Shift Register | 16-SOIC | 8-bit, Serial-In Parallel-Out

Product Overview

The SN74LV594ADR from Texas Instruments is an 8-bit shift register with output latches and 3-state outputs. It operates from 2 V to 5.5 V, making it suitable for low-voltage 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 8-bit 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.

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 = 0.7 × VCC, VNIL = 0.3 × VCC
• Low power consumption: ICC = 20 μA max at 5.5 V
• Output drive: ±12 mA at 5 V
• ESD protection exceeds JESD 22
• Latch-up performance exceeds 250 mA per JESD 78

Target Applications

The SN74LV594ADR is ideal for applications requiring serial-to-parallel data conversion with output latching. Specific examples include:

• 5G base station control logic for antenna array configuration
• Automotive dashboard display drivers for LED indicators
• Industrial programmable logic controllers (PLC) for I/O expansion
• Consumer electronics like smart home hubs for GPIO expansion
• Medical devices such as patient monitoring systems for data acquisition

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

SN74LV594ADR 是德州儀器 (TI) 的一款 8 位移位寄存器，帶有輸出鎖存器和三態輸出。工作電壓範圍為 2 V 至 5.5 V，適用於低電壓應用。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 8 位移位寄存器，並在 RCLK 上升沿傳輸到存儲寄存器。三態輸出由 OE 控制。

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
• 高抗噪性：VNIH = 0.7 × VCC, VNIL = 0.3 × VCC
• 低功耗：ICC 最大 20 μA (5.5 V 時)
• 輸出驅動能力：±12 mA (5 V 時)
• ESD 保護符合 JESD 22 標準
• 閂鎖性能超過 250 mA (JESD 78)

典型應用場景

SN74LV594ADR 適用於需要串行轉並行數據轉換並帶輸出鎖存的應用。具體實例包括：

• 5G 基站天線陣列配置的控制邏輯
• 汽車儀表盤 LED 指示燈的顯示驅動
• 工業可編程邏輯控制器 (PLC) 的 I/O 擴展
• 消費電子如智能家居中心的 GPIO 擴展
• 醫療設備如病人監護系統的數據採集

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