PI5C3390 查看數據表（PDF） - Pericom Semiconductor Corporation
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PI5C3390 Datasheet PDF : 4 Pages
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PI5C3390; PI5C32390
16:8 Multiplexer/Demultiplexer
Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min. Typ(2) Max. Units
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
—
0.2
30
µA
∆ICC
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
—
—
3.5 mA
ICCD
Supply Current per
Input per MHz(4)
VCC = Max.,
A, B, and C 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, and C 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, and C inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
PI5C3390 Switching Characteristics over Operating Range
PI5C3390
Com
Parameters Description
Conditions(1)
Min.
Typ.
Max. Unit
tPLH
Propagation Delay(2,3) CL = 50 pF
—
0.25
—
ns
tPHL
A, B to/from C
RL = 500ohm
tPZH
Bus Enable Time
1.5
—
6.5
ns
tPZL
AEN/BEN to A, B, C
tPHZ
Bus Disable Time
1.5
—
5.5
ns
tPLZ
AEN/BEN to A, B, C
PI5C32390 Switching Characteristics over Operating Range
PI5C32390
Com
Parameters Description
Conditions(1)
Min.
Typ.
Max. Unit
tPLH
Propagation Delay(2,3) CL = 50 pF
—
1.25
—
ns
tPHL
A, B to/from C
RL = 500ohm
tPZH
Bus Enable Time
1.5
—
6.5
ns
tPZL
AEN/BEN to A, B, C
tPHZ
Bus Disable Time
1.5
—
5.5
ns
tPLZ
AEN/BEN to A, B, C
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
PS7030E 09/15/04
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