參數(shù)資料
型號: 74LVC823A
廠商: NXP Semiconductors N.V.
英文描述: 9-bit D-type flip-flop with 5-volt tolerant inputs/outputs;positive-edge trigger(3-State)(帶5V輸入/輸出容限的上升沿觸發(fā)的9位D觸發(fā)器(三態(tài)))
中文描述: 9位D型觸發(fā)器5伏容限輸入/輸出;積極邊緣觸發(fā)(3態(tài))(帶5V的輸入/輸出容限的上升沿觸發(fā)的9位?觸發(fā)器(三態(tài)))
文件頁數(shù): 3/12頁
文件大?。?/td> 106K
代理商: 74LVC823A
Philips Semiconductors
Product specification
74LVC823A
9-bit D-type flip-flop with 5-volt tolerant
inputs/outputs; positive-edge trigger (3-State)
1998 Sep 24
3
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
1
OE
Output enable input
(active LOW)
2, 3, 4, 5, 6,
7, 8, 9, 10
D
0
to D
8
Data inputs
11
MR
Master reset (active LOW)
12
GND
Ground (0 V)
13
CP
Clock pulse (active rising)
14
CE
Clock enable (active LOW)
23, 22, 21, 20,
19, 18, 17, 16,
15
Q
0
to Q
8
3-State flip-flop outputs
24
V
CC
Positive supply voltage
FUNCTION TABLE
OPERATING MODES
INPUTS
INTERNAL FLIP FLOPS
INTERNAL FLIP-FLOPS
OUTPUTS
OE
MR
CE
CP
D
n
Q
0
to Q
8
Clear
L
L
X
X
X
L
L
Load and read register
L
L
H
H
L
L
l
h
L
H
L
H
Load register and disable outputs
H
H
H
H
L
L
X
X
l
h
L
H
Z
Z
Hold
L
H
H
NC
X
NC
NC
H = HIGH voltage level
h
= HIGH voltage level one set-up time prior to the LOW-to-HIGH
CP transition
L
= LOW voltage level
l
= LOW voltage level one set-up time prior to the LOW-to-HIGH
CP transition
Z = high impedance OFF-state
= LOW–to–HIGH clock transition
NC= no change
PIN CONFIGURATION
D0
D1
D2
D3
D4
D5
D6
GND
D7
D8
MR
Q0
Q1
Q2
Q3
Q4
VCC
Q5
Q6
Q7
Q8
CE
CP
1
2
3
4
5
6
7
8
9
10
11
12
20
21
22
23
24
19
18
17
16
15
14
13
OE
SA00418
LOGIC SYMBOL
MR
11
Q7
Q8
2
D0
Q0
19
20
21
22
23
9
10
D7
D8
8
D6
Q6
7
D5
Q5
6
D4
Q4
15
5
D3
Q3
16
4
D2
Q2
17
3
D1
Q1
18
13
14
1
CP
CE
OE
SA00419
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