SN74LS74AD データシートの表示（PDF） - Motorola => Freescale
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SN74LS74AD Datasheet PDF : 3 Pages
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SN54 / 74LS74A
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA
Operating Ambient Temperature Range
IOH
Output Current — High
IOL
Output Current — Low
Min
Typ
Max
Unit
54
4.5
5.0
5.5
V
74
4.75
5.0
5.25
54
– 55
25
125
°C
74
0
25
70
54, 74
– 0.4
mA
54
4.0
mA
74
8.0
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
VIK
VOH
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH Voltage
54
0.7
74
0.8
– 0.65 – 1.5
54
2.5 3.5
74
2.7 3.5
VOL
Output LOW Voltage
54, 74
74
0.25 0.4
0.35 0.5
Input High Current
Data, Clock
20
IIH
Set, Clear
40
Data, Clock
0.1
Set, Clear
0.2
Input LOW Current
IIL
Data, Clock
Set, Clear
– 0.4
– 0.8
IOS
Output Short Circuit Current (Note 1)
– 20
ICC
Power Supply Current
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (TA = 25°C, VCC = 5.0 V)
Limits
–100
8.0
Symbol
fMAX
tPLH
tPHL
Parameter
Maximum Clock Frequency
Clock, Clear, Set to Output
Min Typ Max
25
33
13
25
25
40
V
V
V
V
V
V
µA
mA
mA
mA
mA
Unit
MHz
ns
ns
Guaranteed Input LOW Voltage for
All Inputs
VCC = MIN, IIN = – 18 mA
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
IOL = 4.0 mA
IOL = 8.0 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
VCC = MAX, VIN = 0.4 V
VCC = MAX
VCC = MAX
Test Conditions
Figure 1
Figure 1
VCC = 5.0 V
CL = 15 pF
AC SETUP REQUIREMENTS (TA = 25°C)
Symbol
tW (H)
tW (L)
ts
th
Clock
Clear, Set
Parameter
Data Setup Time — HIGH
Data Setup Time — LOW
Hold Time
Limits
Min Typ Max Unit
25
ns
25
ns
20
ns
20
ns
5.0
ns
Test Conditions
Figure 1
Figure 2
Figure 1
VCC = 5.0 V
Figure 1
FAST AND LS TTL DATA
5-73
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