74LVC821A PHILIPS [NXP Semiconductors], 74LVC821A Datasheet - Page 3

• Manufacturer Part Number: 74LVC821A
• Description: 10-bit D-type flip-flop with 5-volt tolerant inputs/outputs; positive-edge trigger 3-State
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
PIN DESCRIPTION
FUNCTION TABLE
H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH
L = LOW voltage level
l
Z = high impedance OFF-state
NC= no change
PIN CONFIGURATION
1998 Sep 25
1
2, 3, 4, 5, 6,
7, 8, 9, 10, 11
23, 22, 21, 20,
19, 18, 17, 16,
15, 14
12
13
24
PIN NUMBER
10-bit D-type flip-flop with 5-volt tolerant
inputs/outputs; positive-edge trigger (3-State)
= LOW voltage level one set-up time prior to the LOW-to-HIGH
= LOW–to–HIGH clock transition
CP transition
CP transition
Load register and disable outputs
Load and read register
OPERATING MODES
OPERATING MODES
GND
OE
D
D
D
D
D
D
D
D
D
D
SYMBOL
0
1
2
3
4
5
6
7
8
9
D
Q
0
0
GND
V
OE
CP
Hold
10
12
to D
to Q
11
CC
2
3
4
5
6
7
8
9
1
9
9
Output enable input
(active LOW)
Data inputs
3-State flip-flop outputs
Ground (0 V)
Clock input (LOW-to-HIGH,
edge-triggered)
Positive supply voltage
SA00413
NAME AND FUNCTION
17
16
13
24
23
22
21
20
19
18
15
14
V
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q9
CP
CC
0
1
2
3
4
5
6
7
8
OE
H
H
L
L
L
INPUTS
H or L
3
CP
LOGIC SYMBOL
D
X
h
h
l
l
n
10
11
2
3
4
5
6
7
8
9
INTERNAL FLIP FLOPS
INTERNAL FLIP-FLOPS
D 0
D 1
D 2
D 3
D 4
D 5
D 6
D 7
D 8
D 9
CP
13
OE
1
NC
H
H
L
L
Q 0
Q 1
Q 2
Q 3
Q 4
Q 5
Q 6
Q 7
Q 8
Q 9
SA00414
74LVC821A
14
23
22
21
20
19
18
17
16
15
Product specification
OUTPUTS
Q
0
NC
to Q
H
L
Z
Z
9