74LV163 データシートの表示（PDF） - Philips Electronics
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74LV163 Datasheet PDF : 14 Pages
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Philips Semiconductors
Presettable synchronous 4-bit binary counter;
synchronous reset
Product specification
74LV163
PIN CONFIGURATION
MR 1
CP 2
D0 3
D1 4
D2 5
D3 6
CEP 7
GND 8
16 VCC
15 TC
14 Q0
13 Q1
12 Q2
11 Q3
10 CET
9 PE
SV00569
PIN DESCRIPTION
PIN NUMBER SYMBOL
FUNCTION
1
MR
Asynchronous master reset
(active LOW)
2
CP
Clock input
(LOW-to-HIGH, edge-triggered)
3, 4, 5, 6
7
D0 to D3
CEP
Data inputs
Count enable inputs
8
GND
Ground (0 V)
9
PE
Parallel enable input (active LOW)
10
CET
Count enable carry input
14, 13, 12, 11 Q0 to Q3 Flip-flop outputs
15
TC
Terminal count output
16
VCC
Positive supply voltage
LOGIC SYMBOL (IEEE/IEC)
1
R
CTR4
9
M1
7
G3
10
G4
2
C2/1,3,4+
3
14
1, 2D
4
13
5
12
6
11
15
4CT = 15
SV00571
LOGIC SYMBOL
3
D0
4
D1
5
D2
6
D3
15
TC
Q0
14
Q1
13
Q2
12
Q3
11
9
PE
CEP CET CP MR
7
10 2
1
SV00570
FUNCTIONAL DIAGRAM
9 PE
10 CET
7 CEP
2 CP
1 MR
3456
D0 D1 D2 D3
PARALLEL LOAD
CIRCUITRY
BINARY
COUNTER
Q0 Q1 Q2 Q3
14 13 12 11
TC 15
SV00572
1998 Apr 30
3
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