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74HC257N,652 PDF预览

74HC257N,652

更新时间: 2024-01-23 09:17:51
品牌 Logo 应用领域
恩智浦 - NXP 光电二极管逻辑集成电路
页数 文件大小 规格书
18页 208K
描述
74HC(T)257 - Quad 2-input multiplexer; 3-state DIP 16-Pin

74HC257N,652 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:DIP包装说明:DIP, DIP16,.3
针数:16Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:8.38
系列:HC/UHJESD-30 代码:R-PDIP-T16
JESD-609代码:e4长度:21.6 mm
负载电容(CL):50 pF逻辑集成电路类型:MULTIPLEXER
最大I(ol):0.006 A功能数量:4
输入次数:2输出次数:1
端子数量:16最高工作温度:125 °C
最低工作温度:-40 °C输出特性:3-STATE
输出极性:TRUE封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP16,.3
封装形状:RECTANGULAR封装形式:IN-LINE
包装方法:TUBE峰值回流温度(摄氏度):260
电源:2/6 VProp。Delay @ Nom-Sup:33 ns
传播延迟(tpd):165 ns认证状态:Not Qualified
座面最大高度:4.7 mm子类别:Multiplexer/Demultiplexers
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:NO
技术:CMOS温度等级:AUTOMOTIVE
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:7.62 mm
Base Number Matches:1

74HC257N,652 数据手册

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74HC257; 74HCT257  
Quad 2-input multiplexer; 3-state  
Rev. 6 — 26 January 2015  
Product data sheet  
1. General description  
The 74HC257; 74HCT257 are high-speed Si-gate CMOS devices and are pin compatible  
with Low-power Schottky TTL (LSTTL).  
The 74HC257 and 74HCT257 have four identical 2-input multiplexers with 3-state outputs,  
which select 4 bits of data from two sources and are controlled by a common data select  
input (S).  
The data inputs from source 0 (1I0 to 4I0) are selected when input S is LOW and the data  
inputs from source 1 (1I1 to 4I1) are selected when S is HIGH. Data appears at the  
outputs (1Y to 4Y) in true (non-inverting) form from the selected inputs.  
The 74HC257 and 74HCT257 are the logic implementation of a 4-pole, 2-position switch,  
where the position of the switch is determined by the logic levels applied to S. The outputs  
are forced to a high-impedance OFF-state when OE is HIGH.  
The logic equations for the outputs are:  
1Y = OE  1I1 S 1I0 S  
2Y = OE  2I1 S 2I0 S  
3Y = OE  3I1 S 3I0 S  
4Y = OE  4I1 S 4I0 S  
Except for their non-inverting (true) outputs the 74HC257; 74HCT257 are identical to the  
74HC258.  
2. Features and benefits  
Non-inverting data path  
3-state outputs interface directly with system bus  
Complies with JEDEC standard no. 7A  
ESD protection:  
HBM JESD22-A114F exceeds 2000 V  
MM JESD22-A115-A exceeds 200 V  
Multiple package options  
Specified from 40 C to +85 C and from 40 C to +125 C  
 
 

74HC257N,652 替代型号

型号 品牌 替代类型 描述 数据表
74HC257N NXP

完全替代

Quad 2-input multiplexer 3-state
SN74HC257N TI

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QUAD 2-LINE TO 1-LINE DATA SE;ECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
CD74HC257E TI

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High Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs

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