PI5C3384 查看數據表（PDF） - Pericom Semiconductor
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PI5C3384 Datasheet PDF : 6 Pages
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PI5C3384/3384C/32384 (25 Ohm)
10-Bit, 2-Port Bus switch
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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
VCC = Max., VIN = 3.4V(3)
PI5C3384
PI5C32384
PI5C3384C
VCC = Max.,
A and B Pins Open
BE1 or BE2 = GND
Control Input Toggling
50% Duty Cycle
Min. Typ(2) Max. Units
— 0.1 3.0 µA
—
60 100 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); 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.
PI5C3384/3384C Switching Characteristics over Operating Range
PI5C3384/3384C
Parameters Description
Conditions(1)
Min
Typ
Max Unit
tPLH
Propagation Delay(2,3) CL = 50 pF
—
0.25
—
ns
tPHL
Ax to Bx, Bx to Ax
RL = 500ohm
tPZH
Bus Enable Time
1.5
—
6.5
ns
tPZL
BEX to Ax or Bx
tPHZ
Bus Disable Time
1.5
—
5.5
ns
tPLZ
BEx to Ax or Bx
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 0.25 ns for 50 pF 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
PS 7029B
11/18/02
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