M74HC173TTR データシートの表示（PDF） - STMicroelectronics
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M74HC173TTR Datasheet PDF : 12 Pages
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M74HC173
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
CLEAR
CLOCK
X
X
X
X
H
X
L
L
L
L
L
X : Don’t Care
Z : High Impedance
DATA ENABLE
G1
G2
X
X
X
X
X
X
X
X
H
X
X
H
L
L
L
L
PIN DESCRIPTION
PIN No
1, 2
3, 4, 5, 6
7
9, 10
14, 13, 12,
11
15
8
16
SYMBOL
M, N
1Q to 4Q
CLOCK
G1, G2
1D to 4D
NAME AND FUNCTION
Output Enable Input
(Active Low)
3-State Flip-Flop Outputs
Clock Input (Low to HIGH,
Edge-triggered)
Data Enable Inputs
(Active Low)
Data Inputs
CLEAR
GND
VCC
Asynchronous Master
Reset (Active High)
Ground (0V)
Positive Supply Voltage
OUTPUT CONTROL
Dn
Qn
M
N
X
H
X
Z
X
X
H
Z
X
L
L
L
X
L
L
Q0
X
L
L
Q0
X
L
L
Q0
H
L
L
H
L
L
L
L
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