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What is HD74HC147?

This electronic component, produced by the manufacturer "Hitachi Semiconductor", performs the same function as "10-to-4-line Priority Encoder".


HD74HC147 Datasheet PDF - Hitachi Semiconductor

Part Number HD74HC147
Description 10-to-4-line Priority Encoder
Manufacturers Hitachi Semiconductor 
Logo Hitachi Semiconductor Logo 


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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: tpd = 14.5 ns typ (CL = 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Function Table
Inputs
Outputs
12 3 4 5 6 7 8 9 D C B A
HH H H H H H H H H H H H
XX X X X X X X L L H H L
XX X X X X X L H L H H H
XX X X X X L H H H L L L
XX X X X L H H H H L L H
XX X X L H H H H H L H L
XX X L H H H H H H L H H
XX L H H H H H H H H L L
XL H H H H H H H H H L H
LH H H H H H H H H H H L

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HD74HC147 equivalent
19.20
20.00 Max
16
9
1
1.3
1.11 Max
8
Unit: mm
7.62
2.54 ± 0.25
0.48 ± 0.10
0.25
+
0.13
0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
DP-16
Conforms
Conforms
1.07 g


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On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HD74HC147 electronic component.


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HD74HC147 datasheet


1. PDF - 10-to-4-line Priority Encoder

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HD74HC147The function is 10-to-4-line Priority Encoder. Hitachi SemiconductorHitachi Semiconductor

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