74lv161db NXP Semiconductors, 74lv161db Datasheet - Page 3

• Manufacturer Part Number: 74lv161db
• Description: Presettable Synchronous 4-bit Binary Counter; Asynchronous Reset
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PIN CONFIGURATION
PIN DESCRIPTION
LOGIC SYMBOL (IEEE/IEC)
1997 May 15
1
2
3, 4, 5, 6
7
8
9
10
14, 13, 12,
11
15
16
NUMBER
Presettable synchronous 4-bit binary counter;
asynchronous reset
PIN
SYMBOL
MR
CP
D
CEP
GND
PE
CET
Q
TC
V
CC
0
0
10
GND
CEP
1
9
7
2
3
4
5
6
to D
to Q
MR
CP
D
D
D
D
0
1
2
3
3
3
R
M1
G3
G4
1, 2D
2
3
4
5
6
7
8
1
C2/1,3,4+
Asynchronous master reset (active LOW)
Clock input
(LOW-to-HIGH, edge-triggered)
Data inputs
Count enable inputs
Ground (0 V)
Parallel enable input (active LOW)
Count enable carry input
Flip-flop outputs
Terminal count output
Positive supply voltage
CTR4
4CT = 15
FUNCTION
16
15
14
11
10
12
13
9
V
TC
Q
Q
Q
Q
CET
PE
CC
0
1
2
3
14
13
12
11
15
SV00569
SV00571
3
LOGIC SYMBOL
FUNCTIONAL DIAGRAM
10
9
7
2
1
3
4
5
6
9
PE
CET
CEP
CP
MR
PE
D
D
D
D
0
1
2
3
CEP
7
PARALLEL LOAD
CET
Q
3
D
14
CIRCUITRY
COUNTER
0
0
BINARY
10
TC
4
Q
13
D
1
1
15
CP
Q
5
D
12
2
2
2
6
D
Q
11
MR
3
3
1
Q
Q
Q
Q
0
1
2
3
Product specification
74LV161
TC
14
13
12
11
15
SV00570
SV00572