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PI5C162214

12-Bit, 3-To-1 Bus-Select Switch

Pericom Semiconductor 

PI5C16214/162214

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Power Supply Characteristics

Parameters Description

Test Conditions(1)

Min. Typ(2) Max. Units

ICC

Quiescent Power

Supply Current

∆ICC

Supply Current per

Input @ TTL HIGH

VCC = Max.

VCC = Max.

VIN = GND or VCC

VIN = 3.4V(3)

0.1 10 µA

2.5 mA

ICCD

Supply Current per

Input per MHz(4)

VCC = Max.,

A and B Pins Open

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.

PI5C16214 Switching Characteristics over Operating Range

Parameters Description

Conditions(1)

PI5C16214

Vcc = 5V ±0.5V

Min.

Max.

tPLH

Propagation Delay(2,3)

CL = 50pF

tPHL

Ax to Bx, Bx to Ax

RL = 500Ω

tPZH

Bus Enable Time

tPZL

XOE to Ax or Bx

tPHZ

Bus Disable Time

tPLZ

XOE to Ax or Bx

0.25

1.5

6.5

1.5

5.5

Units

ns

PI5C162214 Switching Characteristics over Operating Range

PI5C162214

Vcc = 5V ±0.5V

Parameters Description

Conditions(1)

Min.

Max.

Units

tPLH

Propagation Delay(2,3)

CL = 50pF

tPHL

Ax to Bx, Bx to Ax

RL = 500Ω

tPZH

Bus Enable Time

tPZL

XOE to Ax or Bx

tPHZ

Bus Disable Time

tPLZ

XOE to Ax or Bx

1.25

1.5

6.5

ns

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.

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com

3

PS7040A 04/23/99

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