HD74HC173
4-bit D-type Register (with 3-state Outputs)
Description
The four D type Flip-Flops operate synchronously from a common clock. The 3-state outputs allow the
device to be used in bus organized systems. The outputs are placed in the 3-stage mode when either of the
output disable pins are in the logic high level.
The input disable allows the flip-flops to remain in their present states without having to disrupt the clock.
If either of the 2 input disables are taken to a logic high level, the Q outputs are fed back to the inputs,
forcing the flip-flops to remain in the same state. Clearing is enabled by taking the clear input to a logic
high level. The data outputs change state on the positive going edge of the clock.
Features
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High Speed Operation: t
pd
(Clock to Q) = 14 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 碌A(chǔ) max
Low Quiescent Supply Current: I
CC
(static) = 4 碌A(chǔ) max (Ta = 25擄C)
Function Table
Inputs
Data Enable
Clear
H
L
L
L
L
L
Clock
X
L
G
1
X
X
H
X
L
L
G
2
X
X
X
H
L
L
Data D
X
X
X
X
L
H
Output Q
L
Q
0
Q
0
Q
0
L
H
Note: When either M or N (or both) is (are) high the output is disabled to the high-impedance state;
however sequential operation of the flip-flops is not affected.
74173相關(guān)型號(hào)PDF文件下載
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英文版
4 X 4 REGISTER FILE (With Open-Collector Output)
ETC
-
英文版
4 X 4 REGISTER FILE (With Open-Collector Output)
ETC [ETC]
-
英文版
4-bit D-type Register (with 3-state Outputs)
HITACHI
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英文版
Quad D-type flip-flop; positive-edge trigger; 3-state
PHILIPS
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英文版
Quad 3-State D Flip-Flop with Common Clock and Reset
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英文版
Quad D-type flip-flop; positive-edge trigger; 3-state
PHILIPS [P...
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英文版
Quad 3-State D Flip-Flop with Common Clock and Reset
MOTOROLA [...
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英文版
4-bit D-type Register (with 3-state Outputs)
HITACHI [H...
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英文版
Hex/Quad D-Type Flip-Flop with Clear
FAIRCHILD
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英文版
Hex/Quad D-Type Flip-Flop with Clear
FAIRCHILD ...
-
英文版
4-BIT SHIFT REGISTER
ETC
-
英文版
4-BIT SHIFT REGISTER
ETC [ETC]
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英文版
Hex Buffer
ETC
-
英文版
Hex Buffer
-
英文版
Hex Buffer
ETC
-
英文版
Hex Buffer
-
英文版
4 X 4 REGISTER FILE (With Open-Collector Output)
ETC
-
英文版
4 X 4 REGISTER FILE (With Open-Collector Output)
ETC [ETC]
-
英文版
4 X 4 REGISTER FILE (With Open-Collector Output)
ETC
-
英文版
4 X 4 REGISTER FILE (With Open-Collector Output)
ETC [ETC]
1
2
3
4
5
6
7
8
9
