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参数资料
| 型号： | PI3B3244QE |
| 厂商： | Pericom Semiconductor Corp. |
| 英文描述： | 3.3V, Hot Insertion, 8-Bit, 2-Port NanoSwitch |
| 中文描述： | 3.3，热插入，8位，2端口NanoSwitch |
| 文件页数： | 3/5页 |
| 文件大小： | 186K |
| 代理商： | PI3B3244QE |
PI3B3244
3.3V, Hot Insertion
8-Bit, 2-Port
NanoSwitch
3
PS8149F 08/25/04
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PI3B3244
Com.
Min.
Parameters Description
Conditions
(1)
Max.
Units
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
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
0.25
ns
R
L
= 500
C
L
= 50 pF,
R
L
= 500
,
R
L
= 500
1.0
4.0
ns
1.0
4.5
ns
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
3.0
μA
I
CC
Supply Current per
Input @ TTL HIGH
V
CC
= Max.
V
IN
= 3.0V
(3)
750
μA
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 TTL driven input (control inputs only); A and B pins do not contribute to I
CC
.
Switching Characteristics over 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.
Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6 regardless of the supply voltage. For example, given a + 3.3V supply, IN may be
driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail minimizes power consumption.
Power-Supply Sequencing and Hot-Plug Information
Proper power-supply sequencing is recommended for all CMOS devices. Always apply V
CC
and GND before applying signals to
input/output or control pins.
Rail-to-Rail is a registeredtrademark of Nippon Motorola, Ltd
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PI3B3244QEX | 功能描述:数字总线开关 IC 3.3V 8B 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 |
| PI3B3244QX | 制造商:Pericom Semiconductor Corporation 功能描述:Bus Switch 2-Element CMOS 8-IN 20-Pin QSOP T/R |
| PI3B3245 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital Switch | 3.3V 8-Bit Bus Switch (FCT245 Pinout) |
| PI3B3245L | 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:3.3V, Hot Insertion 8-Bit, 2-Port, NanoSwitch |
| PI3B3245LE | 功能描述:数字总线开关 IC 3.3V 8B 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 |
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