PI5C32X2383 Просмотр технического описания (PDF) - Pericom Semiconductor
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PI5C32X2383 Datasheet PDF : 4 Pages
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PI5C32X383/PI5C32X2383
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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.
VIN = GND or VCC
Min. Typ(2) Max. Units
— 0.1 3.0 µA
VCC = Max.
VIN = 3.4V(3)
— — 2.5 mA
VCC = Max.,
AB and CD Pins Open
BE = GND
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, B, C, and D 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, B, C, and D inputs generate no significant AC or DC currents as they transition. This parameter is not tested,
but is guaranteed by design.
PI5C32X383 Switching Characteristics over Operating Range
Parameters Description
Conditions(1)
Min.
PI5C32X383
Com
Typ
Max.
Units
tPLH
Propagation Delay(2,3) CL = 50pF
—
0.25
—
tPHL
Ax to Cx, Bx to Dx
RL = 500Ω
tPZH
Bus Enable Time
1.5
—
6.5
ns
tPZL
BE to Cx or Dx
tPHZ
Bus Disable Time
1.5
—
5.5
tPLZ
BE to Cx or Dx
tBX
Bus Exchange Time
1.5
—
6.5
BX to Cx or Dx
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
PS8100 07/10/97
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