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參數資料
| 型號： | MC74HC251D |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-Input Data Selector/Multiplexer with 3-State Outputs |
| 中文描述： | HC/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SOIC-16 |
| 文件頁數： | 2/7頁 |
| 文件大小： | 213K |
| 代理商： | MC74HC251D |
MOTOROLA
High–Speed CMOS Logic Data
DL129 — Rev 6
2
Power Dissipation in Still Air,Plastic or Ceramic DIP
±
75
mA
750
mW
* Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
Derating — Plastic DIP: – 10 mW/ C from 65 to 125 C
Ceramic DIP: – 10 mW/ C from 100 to 125 C
SOIC Package: – 7 mW/ C from 65 to 125 C
For high frequency or heavy load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
(Ceramic DIP)
300
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Vin, Vout
TA
tr, tf
Parameter
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
Min
2.0
0
Max
6.0
VCC
+ 125
Unit
V
V
Operating Temperature, All Package Types
– 55
C
Input Rise and Fall Time
0
0
1000
400
ns
VCC = 2.0 V
VCC = 6.0 V
Voltage
20
A
– 55 to
25 C
85 C
3.15
3.15
4.5
3.15
4.5
6.0
0.9
1.2
0.9
1.2
0.9
1.2
6.0
4.0 mA
5.9
3.98
5.9
3.84
5.9
3.70
Vin = VIH or VIL
4.5
Voltage
|Iout|
20
μ
A
|Iout|
4.5
5.2 mA
0.1
0.26
0.1
0.33
0.1
0.40
6.0
Iin
Maximum Input Leakage Current
Vin = VCC or GND
Vout = VCC or GND
Vin = VCC or GND
|Iout|
6.0
±
0.1
±
1.0
±
1.0
μ
A
ICC
Maximum Quiescent Supply
6.0
8
160
A
80
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high–impedance cir-
cuit. For proper operation, Vin and
Vout should be constrained to the
range GND (Vin or Vout)
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
VCC.
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