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参数资料
| 型号： | PI74FCT280BT |
| 厂商： | Pericom Semiconductor Corp. |
| 英文描述： | Fast CMOS 9-Bit Parity Generator/Checker |
| 中文描述： | 快速CMOS 9位奇偶发生器/检查 |
| 文件页数： | 4/4页 |
| 文件大小： | 39K |
| 代理商： | PI74FCT280BT |
PI74FCT280T
9-BIT PARITY GENERATOR/CHECKER
4
PS2014A 03/11/96
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Power Supply Characteristics
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
I
CC
Quiescent Power
Supply Current
V
CC
= Max.
V
IN
= GND
or V
CC
0.1
500
μA
I
CC
Supply Current per
Input @ TTL HIGH
V
CC
= Max.
V
IN
= 3.4V
(3)
2.0
mA
I
CCD
Supply Current per
Input per MHz
(4)
V
CC
= Max.,
Outputs Open
One Input Toggling
50% Duty Cycle
V
IN
= V
CC
V
IN
= GND
0.25
mA/
MHz
I
C
Total Power Supply
Current
(6)
V
CC
= Max.,
Outputs Open
f
CP
= 10 MH
Z
50% Duty Cycle
f
I
= 5 MH
Z
One Bit Toggling
V
CC
= Max.,
Outputs Open
f
CP
= 10 MH
Z
50% Duty Cycle
Nine Bits Toggling
f
I
= 2.5 MH
Z
50% Duty Cycle
V
IN
= V
CC
V
IN
= GND
1.7
4.0
(5)
mA
V
IN
= 3.4V
V
IN
= GND
2.2
6.0
(5)
V
IN
= V
CC
V
IN
= GND
4.0
7.8
(5)
V
IN
= 3.4V
V
IN
= GND
6.2
16.8
(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
+
I
CC
D
H
N
T
+ I
CCD
(f
CP
/2 + f
I
N
I
)
I
CC
= Quiescent Current
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.
Pericom Semiconductor Corporation
2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com
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