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參數(shù)資料
| 型號： | P13C3244Q |
| 廠商： | Pericom Semiconductor Corp. |
| 英文描述： | 2.5V/3.3V, High Bandwidth, Hot Insertion, 8-Bit, 2-Port Bus Switch |
| 中文描述： | 2.5V/3.3V的，高帶寬，熱插入，8位，2端口總線開關 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 203K |
| 代理商： | P13C3244Q |
PI3C3244
2.5V/3.3V, High Bandwidth,
Hot Insertion, 8-Bit, 2-Port Bus Switch
3
PS8149B 12/10/99
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PI3C3244
Com.
Min.
Parameters Description
Conditions
(1)
Max. Units
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation Delay
(2,3)
Ax to Bx
Bus Enable Time
BE to Ax or Bx
Bus Disable Time
BE to Ax or Bx
C
L
= 50 pF,
R
L
= 500
0.25
1.5
6.5
ns
C
L
= 50 pF,
R
L
= 500
,
R = 500
1.5
5.5
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
260
500
I
CC
Supply Current per
Input HIGH
V
CC
= Max.
V
IN
= 3.0V
(3)
750
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
3. Per driven input (control input only); A and B pins do not contribute to
I
CC
.
Switching Characteristics over 3.3V Operating Range
μA
PI3C3244
Com.
Min.
Parameters
Description
Propagation Delay
(2,3)
C
L
= 50 pF,
Ax to Bx
Bus Enable Time
BE to Ax or Bx
Bus Disable Time
BE to Ax or Bx
Conditions
(1)
Max. Units
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
0.25
R
L
= 500
1.5
9.8
ns
C
L
= 50 pF,
R
L
= 500
,
R = 500
1.5
8.3
Switching Characteristics over 2.5V Operating Range
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load
capacitance. The time constant for the switch alone is of the order of 0.25ns for 50pF load. Since this time constant is much smaller
than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the
bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the
load on the driven side.
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