參數(shù)資料
型號(hào): 74HC173
廠商: NXP Semiconductors N.V.
英文描述: Quad D-type flip-flop; positive-edge trigger; 3-state
中文描述: 四D型觸發(fā)器;積極邊緣觸發(fā);三態(tài)
文件頁數(shù): 4/10頁
文件大?。?/td> 69K
代理商: 74HC173
December 1990
4
Philips Semiconductors
Product specification
Quad D-type flip-flop; positive-edge trigger; 3-state
74HC/HCT173
FUNCTION TABLE
Notes
1.
H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition
L = LOW voltage level
I = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition
q = lower case letters indicate the state of the referenced input (or output)
one set-up time prior to the LOW-to-HIGH CP transition
X = don’t care
Z = high impedance OFF-state
= LOW-to-HIGH CP transition
REGISTER OPERATING MODES
INPUTS
OUTPUTS
MR
CP
E
1
X
l
l
h
X
E
2
X
l
l
X
h
D
n
X
l
h
X
X
Q
n
(register)
L
L
H
q
n
q
n
reset (clear)
H
L
L
L
L
X
X
X
parallel load
hold (no change)
3-STATE BUFFER OPERATING MODES
INPUTS
OUTPUTS
Q
n
(register)
L
H
X
X
OE
1
L
L
H
X
OE
2
L
L
X
H
Q
0
L
H
Z
Z
Q
1
L
H
Z
Z
Q
2
L
H
Z
Z
Q
3
L
H
Z
Z
read
disabled
Fig.4 Functional diagram.
相關(guān)PDF資料
PDF描述
74173 4-bit D-type Register (with 3-state Outputs)
74173 Quad 3-State D Flip-Flop with Common Clock and Reset
74HCT175 Quad D-type flip-flop with reset;positive-edge trigger(帶復(fù)位的四D觸發(fā)器;上升沿觸發(fā);)
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