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74AC257M PDF预览

74AC257M

更新时间: 2024-02-01 13:54:42
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 解复用器逻辑集成电路光电二极管
页数 文件大小 规格书
12页 203K
描述
QUAD 2 CHANNEL MULTIPLEXER 3-STATE

74AC257M 技术参数

生命周期:Contact Manufacturer包装说明:TSSOP,
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.63Is Samacsys:N
系列:ACJESD-30 代码:R-PDSO-G16
长度:5 mm逻辑集成电路类型:MULTIPLEXER
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:-55 °C
输出特性:3-STATE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
传播延迟(tpd):9 ns座面最大高度:1.2 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):3.3 V表面贴装:YES
技术:CMOS温度等级:MILITARY
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL宽度:4.4 mm
Base Number Matches:1

74AC257M 数据手册

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74AC257  
QUAD 2 CHANNEL MULTIPLEXER (3-STATE)  
HIGH SPEED: t = 4.5ns (TYP.) at V = 5V  
PD CC  
LOW POWER DISSIPATION:  
I
= 4µA(MAX.) at T =25°C  
CC  
A
HIGH NOISE IMMUNITY:  
= V = 28 % V (MIN.)  
50TRANSMISSION LINE DRIVING  
V
NIH  
NIL  
CC  
DIP  
SOP  
TSSOP  
T & R  
CAPABILITY  
SYMMETRICAL OUTPUT IMPEDANCE:  
|I | = I = 24mA (MIN)  
OH  
OL  
BALANCED PROPAGATION DELAYS:  
ORDER CODES  
PACKAGE  
t
t
PLH  
PHL  
TUBE  
OPERATING VOLTAGE RANGE:  
(OPR) = 2V to 6V  
DIP  
SOP  
74AC257B  
74AC257M  
V
CC  
74AC257MTR  
74AC257TTR  
PIN AND FUNCTION COMPATIBLE WITH  
74 SERIES 257  
IMPROVED LATCH-UP IMMUNITY  
TSSOP  
high impedance state. If SELECT input is held  
LOW, "A" data is selected, when SELECT input is  
held HIGH, "B" data is chosen.  
All inputs and outputs are equipped with  
protection circuits against static discharge, giving  
them 2KV ESD immunity and transient excess  
voltage.  
DESCRIPTION  
The 74AC257 is an advanced high-speed CMOS  
QUAD 2-CHANNEL MULTIPLEXER (3-STATE)  
fabricated with sub-micron silicon gate and  
2
double-layer metal wiring C MOS tecnology.  
It is composed of four independent 2-channel  
multiplexer with common SELECT and ENABLE  
(OE) inputs. It is a non-inverting multiplexer. When  
the OE input is held HIGH,all the output become in  
PIN CONNECTION AND IEC LOGIC SYMBOLS  
April 2001  
1/11  

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