SN74AHCT157DBR TI Multiplexer | 16-SSOP | 4-Channel, 2-Input

Product Overview

The SN74AHCT157DBR from Texas Instruments is a high-speed CMOS quad 2-input multiplexer designed for digital signal routing. It operates with a supply voltage range of 4.5V to 5.5V, making it ideal for 5V systems. The device features four independent multiplexer channels, each with two data inputs (A and B) and a common output (Y). The select input (S) determines which data input is routed to the output. An active-low output enable (OE) allows the outputs to be placed in a high-impedance state for bus-oriented applications. The SN74AHCT157DBR is offered in a compact 16-SSOP package, suitable for space-constrained designs.

Detailed Technical Specifications

Key Features

• Quad 2-input multiplexer with common select and enable
• High-speed CMOS technology with propagation delay of 7.5 ns max
• Low power consumption: ICC of 40 µA max
• Outputs can be placed in high-impedance state for bus sharing
• Inputs are TTL-compatible for easy interfacing
• ESD protection exceeds 2000V per MIL-STD-883
• Available in 16-SSOP package for space-saving designs

Target Applications

• 5G base station control logic: signal routing for antenna array calibration
• Automotive dashboard display: selecting between different sensor data streams
• Industrial PLC: multiplexing input signals from multiple sensors
• Consumer electronics: audio/video source selection in set-top boxes
• Medical devices: data acquisition system channel selection

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

SN74AHCT157DBR 是德州儀器（TI）生產的高速 CMOS 四路 2 輸入多路復用器，專為數字信號路由設計。工作電源電壓範圍為 4.5V 至 5.5V，非常適合 5V 系統。該器件具有四個獨立的多路復用通道，每個通道有兩個數據輸入（A 和 B）和一個公共輸出（Y）。選擇輸入（S）決定哪個數據輸入被路由到輸出。低電平有效的輸出使能（OE）允許輸出置於高阻抗狀態，適用於總線應用。SN74AHCT157DBR 採用緊湊的 16-SSOP 封裝，適合空間受限的設計。

詳細技術參數

核心特性

• 四路 2 輸入多路復用器，帶公共選擇和使能
• 高速 CMOS 技術，傳播延遲最大 7.5 ns
• 低功耗：ICC 最大 40 µA
• 輸出可置於高阻抗狀態，便於總線共享
• 輸入兼容 TTL，易於接口
• ESD 保護超過 2000V（MIL-STD-883）
• 採用 16-SSOP 封裝，節省空間

典型應用場景

• 5G 基站控制邏輯：天線陣列校準的信號路由
• 汽車儀表盤顯示：選擇不同傳感器數據流
• 工業 PLC：多路傳感器輸入信號復用
• 消費電子：機頂盒中的音視頻源選擇
• 醫療設備：數據採集系統通道選擇

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