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参数资料
| 型号： | PI74FCT2244TS |
| 厂商： | Pericom Semiconductor Corp. |
| 英文描述： | Fast CMOS Octal Buffer/Line Drivers |
| 中文描述： | 快速CMOS八路缓冲器/线路驱动器 |
| 文件页数： | 4/7页 |
| 文件大小： | 434K |
| 代理商： | PI74FCT2244TS |
4
PS2011D 09/22/04
PI74FCT244T/2244T
PI74FCT541T/2541T
Octal Buffer/Line Drivers
Power Supply Characteristics
Parameters
Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
I
CC
Quiescent Power
Supply Current
Supply Current per
Input @ TTL HIGH
V
CC
=
Max
.
V
IN
= GND
or
V
CC
0.1
500
μA
Δ
I
CC
V
CC
= Max.
V
IN
= 3.4V
(3)
0.5
2.5
mA
I
CCD
Supply Current per
Input per MHz
(4)
V
CC
= Max.,
Outputs Open
OE
A
= OE
B
= GND or
OE
A
= GND, OE
B
= V
CC
One Bit Toggling
50% Duty Cycle
V
CC
= Max.,
Outputs Open
f
I
= 10 MH
Z
50%
Duty Cycle
OE
A
= OE
B
= GND or
OE
A
= GND, OE
B
= V
CC
One Bit Toggling
V
CC
= Max.,
Outputs Open
f
I
= 2.5 MH
Z
50%
Duty Cycle
OE
A
= OE
B
= GND or
OE
A
= GND, OE
B
= V
CC
Eight Bits Toggling
V
IN
= V
CC
V
IN
= GND
0.15
0.25
mA/
MHz
I
C
Total Power Supply
Current
(6)
V
IN
= V
CC
V
IN
= GND
1.5
3.5
(5)
mA
V
IN
= 3.4V
V
IN
= GND
1.8
4.5
(5)
V
IN
= V
CC
V
IN
= GND
3.0
6.0
(5)
V
IN
= 3.4V
V
IN
= GND
5.0
14.0
(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 = 5.0V, +25°C ambient.
3. Per TTL driven input (
V
IN
= 3.4V); 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
+
Δ
I
CC
D
H
N
T
+ I
CCD
(
f
CP
/2 +
f
I
N
I
)
I
CC
=
Quiescent Current
Δ
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
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)
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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