MC74F640N 查看數據表（PDF） - Motorola => Freescale
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MC74F640N Datasheet PDF : 4 Pages
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MC74F640
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
TA
IOH
IOH
IOL
IOL
DC Supply Voltage
74
4.5
5.0
5.5
V
Operating Ambient Temperature Range
74
0
25
70
°C
Output Current — High
Output Current — High
Output Current — Low
Output Current — Low
An Outputs
74
Bn Outputs
74
An Outputs
74
Bn Outputs
74
–3.0
mA
–15
mA
24
mA
64
mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Symbol
Parameter
Limits
Min Typ Max Unit
Test Conditions1
VIH
Input HIGH Voltage
VIL
Input LOW Voltage
VIK
Input Clamp Diode Voltage
74
An
74
VOH
Output HIGH Voltage
74
Bn
74
74
VOL
VOL
IOZH + IIH
IOZL + IIL
Output LOW Voltage
Output LOW Voltage
Output Off Current HIGH
Output Off Current LOW
An
74
Bn
74
OE, T/R
IIH
Input HIGH Current
OE, T/R
Others
IIL
Input LOW Current
OE, T/R
IOS
Output Short Circuit Current2 A0 – A7
B0 – B7
ICCH
2.0
0.8
–1.2
2.4
3.3
2.7
3.3
2.4
3.4
2.7
3.4
2.0
0.35 0.5
0.55
70
– 70
40
100
1.0
– 40
– 60
–150
–100
– 225
85
V
Guaranteed as a HIGH Signal
V
Guaranteed as a LOW Signal
V
VCC = MIN, IIN = –18 mA
V
IOH = –3.0 mA VCC = 4.5 V
V
IOH = –3.0 mA VCC = 4.75 V
V
IOH = –3.0 mA VCC = 4.5 V
V
IOH = –3.0 mA VCC = 4.75 V
V
IOH = –15 mA VCC = 4.5 V
V
IOL = 24 mA VCC = MIN
V
IOL = 64 mA VCC = MIN
µA
VCC = MAX
VOUT = 2.7 V
µA
VCC = MAX
VOUT = 0.5 V
µA
VCC = MAX, VIN = 2.7 V
µA
VCC = 0 V, VIN = 7.0 V
mA VCC = MAX, VIN = 5.5 V
µA
VCC = MAX, VIN = 0.5 V
mA VCC = MAX, VOUT = GND
Vout = HIGH
T/R = 4.5 V
ICC
Power Supply Current
ICCL
120
mA
Vout = LOW
T/R = 0 V
VCC = MAX
ICCZ
100
OE = 4.5 V
Vout = HIGH Z
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
FAST AND LS TTL DATA
4-239
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