CD74HCT154M TI Decoder/Demultiplexer | 24-SOIC | 4-to-16 Line, High-Speed CMOS

Product Overview

The CD74HCT154M is a high-speed CMOS 4-to-16 line decoder/demultiplexer from Texas Instruments. It is designed for memory decoding and data routing applications where low power dissipation and high noise immunity are required. The device features four address inputs (A0-A3), two enable inputs (E1 and E2), and 16 mutually exclusive outputs (Y0-Y15). When both enables are low, the selected output is low; otherwise, all outputs are high. The CD74HCT154M is fabricated with silicon gate technology, combining the low power consumption of CMOS with the speed of LSTTL. It is available in a 24-pin SOIC package, making it suitable for space-constrained designs.

Detailed Technical Specifications

Key Features

• High-speed CMOS technology with typical propagation delay of 18ns
• Low power consumption: 80µA (max) ICC
• 4-to-16 line decoder/demultiplexer with two enable inputs
• Mutually exclusive outputs: only one output low at a time
• Inputs are TTL voltage compatible
• Wide operating temperature range: -55°C to +125°C
• Industry-standard 24-SOIC package

Target Applications

The CD74HCT154M is ideal for use in memory decoding (e.g., SRAM/ROM selection in embedded systems), data routing in communication equipment (e.g., 5G base station control boards), and address decoding in industrial automation (e.g., PLC I/O modules). It is also suitable for automotive infotainment systems (e.g., dashboard display controllers) and test equipment (e.g., logic analyzers).

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產品概述

CD74HCT154M 是德州儀器 (TI) 的一款高速 CMOS 4 線至 16 線解碼器/多路分配器。它專為需要低功耗和高抗噪能力的存儲器解碼和數據路由應用而設計。該器件具有四個地址輸入 (A0-A3)、兩個使能輸入 (E1 和 E2) 以及 16 個互斥輸出 (Y0-Y15)。當兩個使能均為低電平時，選中的輸出為低電平；否則所有輸出均為高電平。CD74HCT154M 採用硅柵極技術製造，兼具 CMOS 的低功耗和 LSTTL 的速度。它採用 24 引腳 SOIC 封裝，適合空間受限的設計。

詳細技術參數

核心特性

• 高速 CMOS 技術，典型傳播延遲為 18ns
• 低功耗：最大 ICC 為 80µA
• 4 線至 16 線解碼器/多路分配器，帶兩個使能輸入
• 互斥輸出：一次只有一個輸出為低電平
• 輸入與 TTL 電壓兼容
• 寬工作溫度範圍：-55°C 至 +125°C
• 行業標準 24-SOIC 封裝

典型應用場景

CD74HCT154M 非常適合用於存儲器解碼（例如嵌入式系統中的 SRAM/ROM 選擇）、通信設備中的數據路由（例如 5G 基站控制板）以及工業自動化中的地址解碼（例如 PLC I/O 模塊）。它還適用於汽車信息娛樂系統（例如儀表盤顯示控制器）和測試設備（例如邏輯分析儀）。

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