PI5C33X257

12 Channel, 2:1 Mux/DeMux Bus Switch

3

PS8114C

11/03/06

Power Supply Characteristics

Parameters Description

Min.

Units

Quiescent Power

0.1

3.0

µA

Supply Current

Supply Current per

2.5

mA

Input @ TTL HIGH

Supply Current per

0.25

mA/

I and Y Pins Open

MHz

BE = GND

Control Input Toggling

50% Duty Cycle

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.

4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified

frequency. The I and Y inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is

guaranteed by design.

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.

Switching Characteristics over Operating Range

PI5C33X257

Com.

Parameters Description

Min.

Max.

Unit

0.25

ns

In to Yn

Bus Select Time

0.5

5.2

ns

Sn to Yn

Bus Disable Time

0.5

4.8

ns

E to Yn

Bus Disable Time

0.5

5.0

ns

E to Yn

06-0237