PI5C162245(2000) Просмотр технического описания (PDF) - Pericom Semiconductor

Номер в каталоге

Компоненты Описание

Список матч

PI5C162245
(Rev.:2000)

16-Bit, 2-Port Bus Switch

Pericom Semiconductor 

PI5C16245/162245

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890112364-5B67i8t9,0212-3P45o6r78t9B01u21s23S4w567i8t9c0h12

Power Supply Characteristics

Parameters Description

Test Conditions(1)

Min. Typ(2) Max. Units

ICC

∆ICC

Quiescent Power

Supply Current

Supply Current per

Input @ TTL HIGH

VCC = Max.

VCC = Max.

VIN = GND or VCC

—

0.1

3.0 µA

VIN = 3.4V(3)

— — 2.5 mA

ICCD

Supply Current per

Input per MHz(4)

VCC = Max.,

A and B Pins Open

nBE = GND

Control Input Toggling

50% Duty Cycle

— — 0.25 mA/

MHz

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 (VIN = 3.4V, control inputs only); A and B pins do not contribute to ICC.

4. 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.

PI5C16245 Switching Characteristics over Operating Range

PI5C16245

Com.

Parameters

Description

Conditions

tPLH

Propagation Delay (2,3) CL = 50pF

tPHL

xAx to xBx, xBx to xAx, RL = 500Ω

tPZH

Bus Enable TIme

tPZL

xBE to xAx or xBx,

tPHZ

Bus Disable TIme

tPLZ

xBE to xAx or xBx,

Min.

–

1.5

1.5

Max.

0.25

6.5

5.5

Units

ns

PI5C162245 Switching Characteristics over Operating Range

PI5C162245

Com.

Parameters

Description

Conditions Min.

Max.

Units

tPLH

tPHL

Propagation Delay (2,3) CL = 50pF

xAx to xBx, xBx to xAx, RL = 500Ω

–

1.25

tPZH

Bus Enable TIme

tPZL

xBE to xAx or xBx,

1.5

6.5

ns

tPHZ

Bus Disable TIme

tPLZ

xBE to xAx or xBx,

1.5

5.5

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.

3

PS7025B 06/21/00

Share Link: