PI5C16212VE Ver la hoja de datos (PDF) - Pericom Semiconductor
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PI5C16212VE Datasheet PDF : 5 Pages
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PI5C16212
24-Bit Bus-Exchange Switch
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Power Supply Characteristics
Parameters
Description
Test Conditions(1)
Min. Typ.(2) Max. Units
ICC
Quiescent Power Supply Current
VCC = Max. VIN = GND or VCC —
0.1
3.0 µA
∆ICC(3) Supply Current per Input @ TTL HIGH
VCC = 5.5V
VIN = 3.4V(4)
—
—
0.2 mA
ICCD
Supply Current per Input per MHz(5)
SN = GND, Control Input Toggling
50% Duty Cycle
VCC = Max.,
A & B Pins Open
—
—
0.25
mA/
MHz
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for applicable device.
2. Typical values are at VCC = 5.0V, +25°C ambient.
3. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
4. Per TTL driven input (VIN = 2.7V, control inputs only); A and B pins do not contribute to ICC.
5. 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.
PI5C16212 Switching Characteristics over Operating Range
Parameters
Description
Conditions(1)
PI5C16212
Com.
Min. Max. Units
tPLH
tPHL
Propagation Delay(2,3), xAx to xBx, xBx to xAx
—
0.25
tPLH
tPHL
Propagation Delay, S to Ax or Bx
tPZH
tPZL
Bus Enable Time, S to xAx or xBx
1.5
7.5
CL = 50pF
RL = 500 ohms
1.5
7.0
ns
tPHZ
tPLZ
Bus Disable Time, S to xAx or xBx
1.5
6.5
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
PS7023J
09/09/04
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