PI3C32X245BE datasheet(3/5 Pages) PERICOM

Part #	PI3C32X245BE

Description	2.5V/3.3V, High Bandwidth, Hot Insertion 16-Bit, 2-Port, Bus Switch

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Manufacturer	PERICOM [Pericom Semiconductor Corporation]

Direct Link	http://www.pericom.com

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PS8401E

01/11/11

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PI3C32X245

2.5V/3.3V, High Bandwidth,

Hot Insertion, 16-Bit, 2-Port, Bus Switch

Power Supply Characteristics

Parameters Description

Test Conditions(1)

Min

Typ (2)

Max

Units

ICC

Quiescent Power

Supply Current

VCC = Max.

VIN = GND or VCC

0.5

1.0

mA

ΔICC

Supply Current

per Input HIGH

VCC = Max.

VIN = 3.0V(3)

2.5

Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.

2. Typical values are at VCC = 3.3V, +25°C ambient.

3. Per TTL driven input (control input only); A and B pins do not contribute to ΔICC.

Switching Characteristics over 3.3V Operating Range

Parameters Description

Test Conditions

P13C32X245

Units

Com.

Min

Max

tPLH

tPHL

Propagation Delay(2,3)

Ax to Bx

CL = 50 pF

RL = 500Ω

0.25

ns

tPZH

tPZL

Bus Enable Time

BE to Ax or Bx

CL = 50 pF

RL = 500Ω

R = 500Ω

1.5

6.5

tPHZ

tPLZ

Bus Disable Time

BE to Ax or Bx

1.5

5.5

Switching Characteristics over 2.5V Operating Range

Parameters Description

Test Conditions

P13C32X245

Units

Com.

Min

Max

tPLH

tPHL

Propagation Delay(2,3)

Ax to Bx

CL = 50 pF

RL = 500Ω

0.25

ns

tPZH

tPZL

Bus Enable Time

BE to Ax or Bx

CL = 50 pF

RL = 500Ω

R = 500Ω

1.5

9.8

tPHZ

tPLZ

Bus Disable Time

BE to Ax or Bx

1.5

8.3

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 ca-

pacitance. The time constant for the switch alone is of the order of 0.25 ns for 50 pF 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.

11-0008

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