PI5C3309 Ver la hoja de datos (PDF) - Pericom Semiconductor Corporation
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PI5C3309 Datasheet PDF : 4 Pages
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PI5C3309
3:1 Mux/DeMux Bus Switch
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)
Test Conditions(1)
VCC = Max.
VCC = Max.,
I and Y pins open
Control Input Tog-
gling 50% Duty
Cycle
Min.
VIN = GND or VCC
VIN = 3.4V(3)
Typ.(2) Max. Units
0.1
3.0 µA
2.5 mA
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); I and Y 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 I
and Y inputs generate no significant AC or DC currents as they transition. The parameter is not tested, but is guaranteed by design.
Switching Characteristics over Operating Range
PI5C3309
Parameters
tIY
Description
Propogation Delay(1,2) IN to YN
Conditions
Com
Min.
Max.
0.25
Units
tSY
Bus Select Time SN to YN
0.5
6.6
tPZH
tPZL
Bus Enable Time SN to YN
CL = 50pF
0.5
6.0
RL = 500Ω
ns
tPHZ
tPLZ
Bus Disable Time SN to YN
0.5
6.0
Notes:
1. This parameter is guaranteed but not tested on Propagation Delays.
2. 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 de-
lay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interac-
tion with the load on the driven side.
12-0242
3
www.pericom.com
P-0.1
08/03/12
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