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參數(shù)資料
| 型號： | MC74F85N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-BIT MAGNITUDE COMPARATOR FAST SCHOTTKY TTL |
| 中文描述： | F/FAST SERIES, 4-BIT MAGNITUDE COMPARATOR, TRUE OUTPUT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大小： | 90K |
| 代理商： | MC74F85N |
4-37
FAST AND LS TTL DATA
MC54/74F85
FUNCTION TABLE
Comparing Inputs
Expansion Inputs
Outputs
A3, B3
A2, B2
A1, B1
A0, B0
IA > B
IA < B
IA = B
A > B
A < B
A = B
A3 > B3
X
X
X
X
X
X
H
L
L
A3 < B3
X
X
X
X
X
X
L
H
L
A3 = B3
A2 > B2
X
X
X
X
X
H
L
L
A3 = B3
A2 < B2
X
X
X
X
X
L
H
L
A3 = B3
A2 = B2
A1 > B1
X
X
X
X
H
L
L
A3 = B3
A2 = B2
A1 < B1
X
X
X
X
L
H
L
A3 = B3
A2 = B2
A1 = B1
A0 > B0
X
X
X
H
L
L
A3 = B3
A2 = B2
A1 = B1
A0 < B0
X
X
X
L
H
L
A3 = B3
A2 = B2
A1 = B1
A0 = B0
H
L
L
H
L
L
A3 = B3
A2 = B2
A1 = B1
A0 = B0
L
H
L
L
H
L
A3 = B3
A2 = B2
A1 = B1
A0 = B0
L
L
H
L
L
H
A3 = B3
A2 = B2
A1 = B1
A0 = B0
X
X
H
L
L
H
A3 = B3
A2 = B2
A1 = B1
A0 = B0
H
H
L
L
L
L
A3 = B3
A2 = B2
A1 = B1
A0 = B0
L
L
L
H
H
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
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
VIL
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage
VIK
Input Clamp Diode Voltage
–1.2
V
VCC = MIN, IIN = –18 mA
VOH
Output HIGH Voltage
54, 74
2.5
V
IOH = –1.0 mA
VCC = 4.50 V
74
2.7
VCC = 4.75 V
VOL
Output LOW Voltage
0.5
V
IOL = 20 mA, VCC = MIN
IIH
Input HIGH Current
20
μ
A
VCC = MAX, VIN = 2.7 V
0.1
mA
VCC = 0 V, VIN = 7.0 V
IIL
Input LOW Current
–20
μ
A
VCC = MAX, VIN = 0.5 V
IOS
Output Short Circuit Current (Note 2)
–60
–150
mA
VCC = MAX, VOUT = 0 V
Total Supply Current
mA
VCC = MAX
ICC
HIGH VIN = HIGH
50
LOW An = Bn = IA-B = GND: IA>B = IA<B = 4.5 V
54
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.
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