74LS ON Semiconductor, 74LS Datasheet - Page 3

• Manufacturer Part Number: 74LS
• Description: SYNCHRONOUS 4-BIT UP/DOWN COUNTER
• Manufacturer: ON Semiconductor

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
AC SETUP REQUIREMENTS
V IH
V IL
V IL
V IK
V OH
V OH
V OL
V OL
I
I IH
I IH
I IL
I IL
I OS
I CC
f MAX
t PLH
t PHL
t PLH
t PHL
t PLH
t PHL
t PLH
t PHL
t W
t s
t s
t s
t s
t h
S
Symbol
S
Symbol
S
Symbol
b l
b l
b l
Input HIGH Voltage
Input LOW Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH Voltage
Output HIGH Voltage
Output LOW Voltage
Output LOW Voltage
I
Input HIGH Current
Input HIGH Current
Input LOW Current
Input LOW Current
Short Circuit Current (Note 1)
Power Supply Current
Maximum Clock Frequency
Propagation Delay,
Clock to RCO
Propagation Delay,
Clock to Any Q
Enable to RCO
U/D to RCO
Clock Pulse Width
Data Setup Time
Enable Setup Time
Load Setup Time
U/D Setup Time
Hold Time, Any Input
HIGH C
(T A = 25 C, V CC = 5.0 V)
P
Parameter
P
Parameter
P
Parameter
(T A = 25 C)
Others
Enable T
Others
Enable T
Others
Enable T
54, 74
54
74
54
74
74
FAST AND LS TTL DATA
SN54/74LS669
Min
Min
25
20
20
35
25
30
0
Min
– 20
2.0
2.5
2.7
Limits
Limits
Limits
Typ
Typ
– 0.65
5-3
32
26
40
18
18
11
29
22
26
0.25
0.35
Typ
3.5
3.5
Max
Max
– 100
40
60
27
27
17
45
35
40
Max
– 1.5
–0.4
–0.8
0.7
0.8
0.4
0.5
0.1
0.2
20
40
34
(unless otherwise specified)
U i
Unit
MHz
U i
Unit
U i
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
mA
mA
mA
mA
mA
mA
V
V
V
V
V
V
V
V
A
A
Guaranteed Input HIGH Voltage for
All Inputs
Guaranteed Input LOW Voltage for
All Inputs
V CC = MIN, I IN = – 18 mA
V CC = MIN, I OH = MAX, V IN = V IH
or V IL per Truth Table
I OL = 4.0 mA
I OL = 8.0 mA
V CC = MAX V IN = 2 7 V
V CC = MAX, V IN = 2.7 V
V CC = MAX V IN = 7 0 V
V CC = MAX, V IN = 7.0 V
V CC = MAX V IN = 0 4 V
V CC = MAX, V IN = 0.4 V
V CC = MAX
V CC = MAX
CC
, OH
T
Test Conditions
T
Test Conditions
T
Test Conditions
p
V
V
V CC = 5 0 V
V CC = 5.0 V
C
C
C L = 15 pF
C
C
C
V CC = V CC MIN,
V IN = V IL or V IH
V IN = V IL or V IH
per Truth Table
15 F
15 F
di i
di i
5 0 V
5 0 V
di i
, IN
g
IH