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參數(shù)資料
| 型號： | 74FCT16245 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 16-bIT TRANSCEI |
| 中文描述： | 16位TRANSCEI |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 70K |
| 代理商： | 74FCT16245 |
CY74FCT16245T
CY74FCT162245T
CY74FCT162H245T
4
Power Supply Characteristics
Parameter
I
CC
Description
Test Conditions
Typ.
[5]
5
Max.
500
Unit
μ
A
Quiescent Power Supply Current V
CC
=Max.
V
IN
<0.2V,
V
IN
>V
CC
-0.2V
V
IN
=3.4V
[10]
I
CC
Quiescent Power Supply Current
(TTL inputs HIGH)
Dynamic Power Supply
Current
[11]
V
CC
=Max.
0.5
1.5
mA
I
CCD
V
CC
=Max., One Input Toggling,
50%DutyCycle,OutputsOpen,
OE=DIR=GND
V
CC
=Max., f
1
=10 MHz,
50%DutyCycle,OutputsOpen,
One Bit Toggling,
OE=DIR=GND
V
IN
=V
CC
or
V
IN
=GND
60
100
μ
A/MHz
I
C
Total Power Supply Current
[12]
V
IN
=V
CC
or
V
IN
=GND
V
IN
=3.4V or
V
IN
=GND
V
IN
=V
CC
or
V
IN
=GND
V
IN
=3.4V or
V
IN
=GND
0.6
1.5
mA
0.9
2.3
mA
V
CC
=Max., f
1
=2.5 MHz, 50%
Duty Cycle, Outputs Open,
Sixteen Bits Toggling,
OE=DIR=GND
2.4
4.5
[13]
mA
6.4
16.5
[13]
mA
Notes:
10. Per TTL driven input (V
=3.4V); all other inputs at V
or GND.
11. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
12. I
C
= I
QUIESCENT
+ I
INPUTS
+ I
I
C
= I
D
N
(f
/2 + f
N
)
I
CC
= Quiescent Current with CMOS input levels
I
CC
= Power Supply Current for a TTL HIGH input (V
IN
=3.4V)
D
H
= Duty Cycle for TTL inputs HIGH
N
T
= Number of TTL inputs at D
I
CCD
= Dynamic Current caused by an input transition pair (HLH or LHL)
f
0
= Clock frequency for registered devices, otherwise zero
f
1
= Input signal frequency
N
= Number of inputs changing at f
All currents are in milliamps and all frequencies are in megahertz.
13. Values for these conditions are examples of the I
CC
formula. These limits are specified but not tested.
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