Datasheet > 74HC138-Q100

74HC138-Q100

更新时间： 2025-09-20 12:36:51

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
18页	241K
描述
3-to-8 line decoder/demultiplexer; inverting

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74HC138-Q100 数据手册

74HC138-Q100; 74HCT138-Q100

3-to-8 line decoder/demultiplexer; inverting

Rev. 1 — 16 July 2012

Product data sheet

1. General description

The 74HC138-Q100; 74HCT138-Q100 is a high-speed Si-gate CMOS device and is pin

compatible with Low-power Schottky TTL (LSTTL).

The 74HC138-Q100; 74HCT138-Q100 decoder accepts three binary weighted address

inputs (A0, A1 and A3) and when enabled, provides 8 mutually exclusive active LOW

outputs (Y0 to Y7).

The 74HC138-Q100; 74HCT138-Q100 features three enable inputs: two active LOW

(E1 and E2) and one active HIGH (E3). Every output will be HIGH unless E1 and E2 are

LOW and E3 is HIGH.

This multiple enable function allows easy parallel expansion of the 74HC138-Q100;

74HCT138-Q100 to a 1-of-32 (5 lines to 32 lines) decoder with just four 74HC138-Q100;

74HCT138-Q100 ICs and one inverter.

The 74HC138-Q100; 74HCT138-Q100 can be used as an eight output demultiplexer by

using one of the active LOW enable inputs as the data input and the remaining enable

inputs as strobes. Not used enable inputs must be permanently tied to their appropriate

active HIGH- or LOW-state.

This product has been qualified to the Automotive Electronics Council (AEC) standard

Q100 (Grade 1) and is suitable for use in automotive applications.

2. Features and benefits

 Automotive product qualification in accordance with AEC-Q100 (Grade 1)

 Specified from 40 C to +85 C and from 40 C to +125 C

 Demultiplexing capability

 Multiple input enable for easy expansion

 Complies with JEDEC standard no. 7A

 Ideal for memory chip select decoding

 Active LOW mutually exclusive outputs

 ESD protection:

 MIL-STD-883, method 3015 exceeds 2000 V

 HBM JESD22-A114F exceeds 2000 V

 MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 )

 Multiple package options

12 3 4 5 6 7...18

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