參數(shù)資料
型號： HD74HC147
廠商： Hitachi,Ltd.
英文描述： Dual 4-Input Positive-NAND Gates 14-CDIP -55 to 125
中文描述： 10到4線優(yōu)先編碼器
文件頁數(shù)： 1/8頁
文件大?。?/td> 43K
代理商： HD74HC147
HD74HC147
10-to-4-line Priority Encoder
Description
The HD74HC147 features priority encoding of the inputs to ensure that only the highest order data line is
encoded. Nine input lines are encoded to a four line BCD output. The implied decimal zero codition
requires no input condition as zero is encoded when all nine data lines are at a high logic level. All data
inputs and outputs are active at the low logic level.
Features
High Speed Operation: t
pd
= 14.5 ns typ (C
L
= 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: V
CC
= 2 to 6 V
Low Input Current: 1 μA max
Low Quiescent Supply Current: I
CC
(static) = 4 μA max (Ta = 25°C)
Function Table
Inputs
Outputs
1
2
3
4
5
6
7
8
9
D
C
B
A
H
H
H
H
H
H
H
H
H
H
H
H
H
X
X
X
X
X
X
X
X
L
L
H
H
L
X
X
X
X
X
X
X
L
H
L
H
H
H
X
X
X
X
X
X
L
H
H
H
L
L
L
X
X
X
X
X
L
H
H
H
H
L
L
H
X
X
X
X
L
H
H
H
H
H
L
H
L
X
X
X
L
H
H
H
H
H
H
L
H
H
X
X
L
H
H
H
H
H
H
H
H
L
L
X
L
H
H
H
H
H
H
H
H
H
L
H
L
H
H
H
H
H
H
H
H
H
H
H
L
相關(guān)PDF資料
PDF描述
HD74HC148 Dual 4-Input Positive-NAND Gates 20-LCCC -55 to 125
HD74HC149 Dual 4-Input Positive-NAND Gates 14-CDIP -55 to 125
HD74HC14FH Hex Schmitt-trigger Inverters
HD74HC14 Hex Schmitt-trigger Inverters
HD74HC151 Dual 4-Input Positive-NAND Gates 14-CFP -55 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD74HC148FP(E) 制造商:Renesas Electronics 功能描述:74HC 8-to-3 Line Priority Encoder Bulk
HD74HC14FP-E 制造商:Renesas Electronics 功能描述:74HC Hex Schmitt Inverter 制造商:Renesas Electronics 功能描述:74HC Hex Schmitt Inverter Bulk 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-14
HD74HC14P-E 制造商:Renesas Electronics 功能描述:74HC Hex Schmitt Inverter
HD74HC14T(ELL-E) 制造商:Renesas Electronics 功能描述:74HC Hex Schmitt Inverter Cut Tape
HD74HC154P 制造商:Renesas Electronics 功能描述:74HC 4-to-16 Line Decoder Bulk
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