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參數(shù)資料
| 型號(hào)： | PI74FCT3245 |
| 廠商： | Pericom Semiconductor Corp. |
| 英文描述： | Fast CMOS 3.3V 8-Bit Bidirectional Transceiver |
| 中文描述： | 快速CMOS 3.3V的8位雙向收發(fā)器 |
| 文件頁(yè)數(shù)： | 3/4頁(yè) |
| 文件大?。?/td> | 44K |
| 代理商： | PI74FCT3245 |
3
PI74FCT3245
3.3V 8-BIT BIDIRECTIONAL TRANSCEIVER
PS7068C 8/22/97
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Power Supply Characteristics
Parameters Description
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Units
I
CC
I
CC
Quiescent Power Supply Current
V
CC
= Max.
V
IN
= GND or V
CC
0.1
10
μA
Quiescent Power Supply Current
TTL Inputs HIGH
V
CC
= Max.
V
IN
= V
CC
– 0.6V
(3)
2.0
30
μA
I
CCD
Dynamic Power Supply
(4)
V
CC
= Max.,
Outputs Open
OE = GND
One Bit Toggling
50% Duty Cycle
V
IN
= V
CC
V
IN
= GND
95
100
μA/
MHz
I
C
Total Power Supply
Current
(6)
V
CC
= Max.,
Outputs Open
f
I
= 10 MH
Z
50% Duty Cycle
OE = GND
One Bit Toggling
V
IN
= V
CC
– 0.6V
V
IN
= GND
0.97
2.3
mA
V
CC
= Max.,
Outputs Open
f
I
= 2.5 MH
Z
50% Duty Cycle
OE = GND
8 Bits Toggling
V
IN
= V
CC
– 0.6V
V
IN
= GND
1.9
4.7
(5)
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 3.3V, +25°C ambient.
3. Per TTL driven input; all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. I
C
=I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
I
CC
D
H
N
T
+ I
CCD
(f
CP
/2 + f
I
N
I
)
I
CC
= Quiescent Current (I
CCL
, I
CCH
and I
CCZ
)
I
CC
= Power Supply Current for a TTL High Input
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
N
CP
= Number of Clock Inputs at f
CP
f
I
= Input Frequency
N
I
= Number of Inputs at f
I
All currents are in milliamps and all frequencies are in megahertz.
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