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74HC238BQ PDF预览

74HC238BQ

更新时间: 2024-01-31 01:12:22
品牌 Logo 应用领域
恩智浦 - NXP /
页数 文件大小 规格书
18页 113K
描述
3-to-8 line decoder/demultiplexer

74HC238BQ 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:TSSOP,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.3系列:HC/UH
输入调节:STANDARDJESD-30 代码:R-PDSO-G16
长度:5 mm逻辑集成电路类型:OTHER DECODER/DRIVER
功能数量:1端子数量:16
最高工作温度:125 °C最低工作温度:-40 °C
输出极性:TRUE封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):NOT SPECIFIED
传播延迟(tpd):225 ns座面最大高度:1.1 mm
最大供电电压 (Vsup):6 V最小供电电压 (Vsup):2 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:AUTOMOTIVE
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:4.4 mm

74HC238BQ 数据手册

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74HC238; 74HCT238  
3-to-8 line decoder/demultiplexer  
Rev. 03 — 16 July 2007  
Product data sheet  
1. General description  
74HC238 and 74HCT238 are high-speed Si-gate CMOS devices and are pin compatible  
with Low-Power Schottky TTL (LSTTL).  
The 74HC238/74HCT238 decoders accept three binary weighted address inputs (A0, A1,  
A2) and when enabled, provide 8 mutually exclusive active HIGH outputs (Y0 to Y7). The  
74HC238/74HCT238 features three enable inputs: two active LOW (E1 and E2) and one  
active HIGH (E3). Every output will be LOW unless E1 and E2 are LOW and E3 is HIGH.  
This multiple enable function allows easy parallel expansion of the “238” to a 1-to-32 (5  
lines to 32 lines) decoder with just four “238” ICs and one inverter. The “238” 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. Unused enable inputs must be  
permanently tied to their appropriate active HIGH or LOW state.  
The 74HC238/74HCT238 is similar to the 74HC138/74HCT138 but has non-inverting  
outputs.  
2. Features  
I Demultiplexing capability  
I Multiple input enable for easy expansion  
I Ideal for memory chip select decoding  
I Active HIGH mutually exclusive outputs  
I Multiple package options  
I Complies with JEDEC standard no. 7A  
I ESD protection:  
N HBM JESD22-A114E exceeds 2000 V  
N MM JESD22-A115-A exceeds 200 V  
I Specified from 40 °C to +85 °C and from 40 °C to +125 °C  

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