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CD54HCT390 Datasheet(Fiches technique) 2 Page - Texas Instruments

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Numéro de pièce CD54HCT390
Description  High-Speed CMOS Logic Dual Decade Ripple Counter
Télécharger  13 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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 2 page
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2
Functional Diagram
4 (12)
5 (11)
7 (9)
nQ3
nQ1
nCP1
÷ 5
nCP0
2 (14)
1 (15)
3 (13)
nQ0
nMR
÷ 2
COUNTER
COUNTER
6 (10)
nQ2
GND = 8
VCC = 16
TRUTH TABLE
INPUTS
ACTION
CP
MR
L
No Change
L
Count
X
H
All Qs Low
H = High Voltage Level, L = Low Voltage Level, X = Don’t Care,
↑ = Transition from Low to High Level, ↓ = Transition from High to Low.
BCD COUNT SEQUENCE FOR 1/2 THE 390
COUNT
OUTPUTS
Q0
Q1
Q2
Q3
0LLLL
1
H
LLL
2L
H
L
L
3H
HL
L
4LL
H
L
5HLHL
6L
H
H
L
7
HHH
L
8LLL
H
9HL
L
H
Output nQ0 connected to nCP1 with counter input on nCP0.
B-QUINARY COUNT SEQUENCE FOR 1/2 THE 390
COUNT
OUTPUTS
Q0
Q1
Q2
Q3
0LLLL
1L
H
L
L
2LL
H
L
3L
H
H
L
4LLL
H
5
H
LLL
6
HHH
L
7HLHL
8
HHH
L
9HL
L
H
Output nQ3 connected to nCP0 with counter input on nCP1.
CD74HC390, CD54HCT390, CD74HCT390




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Numéro de composants électroniques

Numéro de pièceDescription des composantsHtml ViewFabricant
CD74HC390High Speed CMOS Logic Dual Decade Ripple Counter 1 2 3 4 5 MoreTexas Instruments
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CD54HC123High-Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Resets 1 2 3 4 5 MoreTexas Instruments
CD74HC4017High Speed CMOS Logic Decade Counter/Divider with 10 Decoded Outputs 1 2 3 4 5 MoreTexas Instruments
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CD54HC4002High-Speed CMOS Logic Dual 4-Input NOR Gate 1 2 3 4 5 MoreTexas Instruments
CD54HCT4538High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator 1 2 3 4 5 MoreTexas Instruments
CD54HC21High-Speed CMOS Logic Dual 4-Input AND Gate 1 2 3 4 5 MoreTexas Instruments

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