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參數(shù)資料
| 型號(hào)： | MC74F258A |
| 廠商： | Motorola, Inc. |
| 英文描述： | QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS |
| 中文描述： | 四2輸入多路復(fù)用器與三態(tài)輸出 |
| 文件頁(yè)數(shù)： | 2/3頁(yè) |
| 文件大?。?/td> | 76K |
| 代理商： | MC74F258A |
4-131
FAST AND LS TTL DATA
MC74F258A
FUNCTION TABLE
Output
Enable
Select
Input
Data
Inputs
Output
OE
S
I0
X
I1
X
Z
H
X
Z
L
H
X
L
H
L
H
X
H
L
L
L
L
X
H
L
L
H
X
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High Impedance
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
TA
IOH
IOL
Supply Voltage
74
4.5
5.0
5.5
V
Operating Ambient Temperature Range
74
0
25
70
°
C
Output Current — High
74
–3.0
mA
Output Current — Low
74
24
mA
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
IIN = –18 mA
VCC = MIN
VOH
Output HIGH Voltage
74
2.7
3.3
V
IOH = –3.0 mA
VCC = 4.75 V
74
2.4
VCC = MIN
VOL
Output LOW Voltage
0.35
0.5
V
IOL = 24 mA
VCC = MIN
IOZH
Output OFF Current — HIGH
50
μ
A
VOUT = 2.7 V
VCC = MAX
IOZL
Output OFF Current — LOW
–50
μ
A
VOUT = 0.5 V
VCC = MAX
IIH
Input HIGH Current
20
μ
A
VIN = 2.7 V
VCC = MAX
100
μ
A
VIN = 7.0 V
IIL
Input LOW Current
–0.6
mA
VIN = 0.5 V
VCC = MAX
IOS
Output Short Circuit Current (Note 2)
–60
–150
mA
VOUT = 0 V
VCC = MAX
ICCH
6.2
9.5
S, I1x = 4.5 V
OE, I0x = GND
ICCL
Power Supply Current
15.1
23
mA
I1x = 4.5 V
VCC = MAX
OE, I0x, S = GND
ICCZ
11.3
17
S, I0x = GND
OE, I1x = 4.5 V
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under guaranteed operating ranges.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
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