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参数资料
| 型号： | PI5C34X245BE |
| 厂商： | Pericom Semiconductor Corp. |
| 英文描述： | 32-Bit, 2-Port Bus Switch |
| 中文描述： | 32位，2端口总线开关 |
| 文件页数： | 3/5页 |
| 文件大小： | 344K |
| 代理商： | PI5C34X245BE |
PI5C34X245
32-
Bit, 2-Port Bus
S
witch
PS7058F 08/2/04
3
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
3.0
μA
I
CC
Supply Current per Input @ TTL
HIGH
V
CC
= Max.
V
IN
= 3.4V
(3)
––
––
2.5
mA
I
CCD
Supply Current per Input per MHz
(4)
V
CC
= Max.,
A & B Pins Open
BEn = GND,
Control Input Toggling
50% Duty Cycle
––
––
0.25
mA/
MHz
Power Supply Characteristics
Notes:
1.
2.
3.
4.
For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
Typical values are at V
CC
= 5.0V, +25°C ambient.
Per TTL driven input (
V
IN
= 3.4V,
control inputs only); A and B pins do not contribute to I
CC
.
This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The
A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.
Notes:
1.
2.
3.
See test circuit and waveforms.
This parameter is guaranteed but not tested on Propagation Delays.
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.
Parameter
Description
Conditions
(1)
PI5C34X245
Com.
Min.
Units
Max.
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation Delay
(2,3)
AX to Bx, Bx to Ax
C
L
= 50pF
R
L
= 500
0.25
ns
Bus Enable Time BEx to Ax or Bx
1.5
5.6
Bus Disable Time BEx to Ax or Bx
1.5
5.2
Switching Characteristics over Operating Range
Capacitance
(
T
A
= 25°C, f = 1 MHz)
Paramaters
(5)
C
IN
C
OFF
C
ON
Notes:
1.
2.
3.
4.
For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
Typical values are at V
CC
= 5.0V,
T
A
= 25°C ambient and maximum loading.
Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
Measured by the voltage drop between A and B pin at indicated current through the switch. On-Resistance is determined by the lower of the
voltages on the two (A,B) pins.
This parameter is determined by device characterization but is not production tested.
5.
Description
Input Capacitance
A/B Capacitance, Switch OFF
A/B Capacitance, Switch ON
Test Conditions
Max.
6
6
12
Units
V
IN
= 0V
pF
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PI5C34X245BEX | 功能描述:数字总线开关 IC 32B Bus Switch RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
| PI5C34X245BX | 制造商:Pericom Semiconductor Corporation 功能描述:Bus Switch 4-Element CMOS 32-IN 80-Pin BQSOP T/R |
| PI5C34X245ZA | 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:32-Bit, 2-Port Bus Switch |
| PI5C34X245ZAE | 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:32-Bit, 2-Port Bus Switch |
| PI5C34X2484N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Bus Switch |
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