PI3B16861 View Datasheet(PDF) - Pericom Semiconductor Corporation
Part Name
Description
MFG CO.
'PI3B16861' PDF : 5 Pages View PDF
PI3B16861
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Switching Characteristics over Operating Range
PI3B16861
Com.
Parameters
Description
Conditions(1)
Min.
Max.
Units
tPLH
Propagation Delay(2,3)
CL = 50pF
tPHL
Ax to Bx, Bx to Ax
RL = 500 ohms
0.25
tPZH
Bus Enable Time
tPZL
BEx to Ax or Bx
tPHZ
Bus Disable Time
tPLZ
BEx to Ax or Bx
CL = 50pF,
RL = 500 ohms,
R = 500 ohms
1
4.5
ns
1
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.
Power Supply Characteristics
Parameters
Description
ICC
Quiescent Power
Supply Current
∆ICC
Supply Current per
Input @ TTL HIGH
ICCD
Supply Current per
Input per MHz(4)
Conditions(1)
VCC = Max.
VCC = Max.
VCC = Max.,
A and B Pins Open
BE = GND
Control Input Toggling
50% Duty Cycle
VIN = GND or VCC
VIN = 3.0V(3)
Min.
—
—
Type(2)
—
Max.
10
—
750
Units
µA
—
—
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 = 3.3V, +25°C ambient.
3. Per TTL driven input (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.
3
PS8175E 09/23/04
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