PI3C16225 데이터 시트보기 (PDF) - Pericom Semiconductor
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PI3C16225
Pericom Semiconductor
PI3C16225 Datasheet PDF : 4 Pages
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PI3C16225
3.3V, High Bandwidth, Low Capacitance 12-Bit to 24-Bit
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Power Supply Characteristics
Parameters
Description
Test Conditions(1)
Min. Typ.(2) Max. Units
ICC
∆ICC
Quiescent Power Supply Current
VCC = Max., VIN = GND or VCC
Supply Current per Input @ TTL HIGH VCC = Max., VIN = 3.0V(3)
260 850
µA
750
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per TTL driven input (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.
PI3C16225 Switching Characteristics Over Operating Range
Com.
Parameters
Description
Conditions(1)
Min.
Max.
Units
tPLH
tPHL
Propogation Delay(2,3)
Ax to Bx, Bx to Ax
CL = 25pF
RL = 500Ω
0.5
tPZH
tPZL
Bus Enable Time
S0 to Ax or Bx
CL = 25pF
1.3
6.5
ns
RL = 500Ω
tPHZ
tPLZ
Bus Disable Time
S0 to Ax or Bx
R = 500Ω
1.5
5.5
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 0.5ns for 25pF 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
PS8458D 03/13/01
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