参数资料
型号: 74LCX138BQX
厂商: Fairchild Semiconductor
文件页数: 5/12页
文件大小: 0K
描述: DECODER/DEMUX 1-OF-8 LV 16DQFN
标准包装: 1
系列: 74LCX
类型: 解码器/多路分解器
电路: 1 x 3:8
独立电路: 1
输出电流高,低: 24mA,24mA
电压电源: 单电源
电源电压: 2 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WQFN 裸露焊盘,16-DQFN
供应商设备封装: 16-DQFN
包装: 标准包装
其它名称: 74LCX138BQXFSDKR
www.fairchildsemi.com
2
74LCX138
Connection Diagrams
Pin Assignments for SOIC, SOP, and TSSOP
Pad Assignments for DQFN
(Top Through View)
Pin Descriptions
Functional Description
The LCX138 high-speed 1-of-8 decoder/demultiplexer
accepts three binary weighted inputs (A0, A1, A2) and,
when enabled, provides eight mutually exclusive active-
LOW outputs (O0–O7). The LCX138 features three Enable
inputs, two active-LOW (E1, E2) and one active-HIGH (E3).
All outputs will be HIGH unless E1 and E2 are LOW and E3
is HIGH. The LCX138 can be used as an 8-output demulti-
plexer by using one of the active LOW Enable inputs as the
data input and the other Enable inputs as strobes. The
Enable inputs which are not used must be permanently tied
to their appropriate active-HIGH or active-LOW state.
Truth Table
H
= HIGH Voltage Level
L
= LOW Voltage Level
X
= Immaterial
Pin Names
Description
A0–A2
Address Inputs
E1–E2
Enable Inputs
E3
Enable Input
O0–O7
Outputs
Inputs
Outputs
E1
E2
E3
A0
A1
A2
O0
O1
O2
O3
O4
O5
O6
O7
H
X
HHH
HH
X
H
X
HHH
HH
X
L
X
HHH
HH
LL
H
LLL
L
H
L
H
L
H
L
H
HHH
HH
L
H
L
H
L
HH
L
HHH
HH
L
HH
H
L
H
L
H
HH
H
L
H
L
H
HHH
H
L
H
L
H
L
H
HHH
HH
L
H
L
H
L
HH
HHH
L
H
L
H
HHH
H
L
(Bottom View)
DAP
No Connect
Note: DAP (Die Attach Pad)
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相关代理商/技术参数
参数描述
74LCX138BQXDQFN 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Low Voltage 1-of-8 Decoder/Demultiplexer with 5V Tolerant Inputs
74LCX138M 功能描述:编码器、解码器、复用器和解复用器 1-of-8 Decode/Demult RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量(输入/输出):2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray
74LCX138M 制造商:Fairchild Semiconductor Corporation 功能描述:74LCX CMOS SMD 74LCX138 SOIC16
74LCX138M_Q 功能描述:编码器、解码器、复用器和解复用器 1-of-8 Decode/Demult RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量(输入/输出):2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray
74LCX138MTC 功能描述:编码器、解码器、复用器和解复用器 1-of-8 Decode/Demult RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量(输入/输出):2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray