PI5C162861C Просмотр технического описания (PDF) - Pericom Semiconductor

Номер в каталоге

Компоненты Описание

Список матч

PI5C162861C

20-Bit, 2-Port Bus Switch

Pericom Semiconductor 

PI5C16861C

PI5C162861C

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890122304-5B67i8t9,0122-3P45o67r8t9B01u21s23S45w67i8t9c0h12

Power Supply Characteristics

Parameters

Description

Test Conditions(1)

Min. Typ.(2) Max. Units

ICC

∆ICC

Quiescent Power

Supply Current

Quiescent Power

Input @ TTL HIGH

VCC = Max.

VCC = Max.

VIN = GND or VCC

VIN = 3.4V(3)

105 200 µA

2.5 mA

ICCD

Supply Current per VCC = Max., A and B Pin Open

Input per MHz(4) BEx = 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.

PI5C16861 Switching Characteristics over Operating Range

Parameters

Description

Conditions(1)

tPLH

Propagation Delay(2,3)

tPHL

Ax to Bx, Bx to Ax

tPZH

Bus Enable Time

tPZL

BEx to Ax or Bx

tPHZ

Bus Disable Time

tPLZ

BEx to Ax or Bx

CL = 50pF

RL = 500Ω

PI5C16861C

Com.

Min.

Max.

0.25

1.5

6.5

1.5

5.5

Units

ns

PI5C162861 Switching Characteristics over Operating Range

PI5C162861C

Parameters

Description

Conditions(1)

Com.

Units

tPLH

Propagation Delay(2,3)

tPHL

Ax to Bx, Bx to Ax

Min.

Max.

1.25

tPZH

Bus Enable Time

tPZL

BEx to Ax or Bx

CL = 50pF

RL = 500Ω

1.5

6.5

ns

tPHZ

Bus Disable Time

tPLZ

BEx to Ax or Bx

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

PS8357D 05 /10/01

Share Link: