IDTQS3125DC Просмотр технического описания (PDF) - Integrated Device Technology
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IDTQS3125DC
Integrated Device Technology
IDTQS3125DC Datasheet PDF : 5 Pages
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IDTQS3125
HIGH-SPEED CMOS QUADRUPLE BUS SWITCH WITH INDIVIDUAL ENABLES
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol
ICCQ
∆ICC
ICCD
Parameter
Quiescent Power Supply Current
Power Supply Current per Control Input HIGH (2)
Dynamic Power Supply Current per MHz(3)
Test Conditions(1)
VCC = Max., VIN = GND or Vcc, f = 0
VCC = Max., VIN = 3.4V, f = 0
VCC = Max., A and Y pins open
Control Inputs Toggling at 50% Duty Cycle
Max.
Unit
3
µA
2.5
mA
0.25
mA/MHz
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TLL driven input (VIN = 3.4V, control inputs only). A and Y pins do not contribute to ∆Icc.
3. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A
and Y inputs generate no significant AC or DC currents as they transition. This parameter is guaranteed but not production tested.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C, VCC = 5.0V ± 5%
CLOAD = 50pF, RLOAD = 500Ω unless otherwise noted.
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Data Propagation Delay (2,3)
A to Y
Switch Turn-on Delay
OE to nA/nY
Switch Turn-off Delay (2)
OE to nA/nY
Parameter
Min. (1)
—
1.5
1.5
Typ.
Max.
Unit
—
0.25 (3)
ns
—
6.5
ns
—
5.5
ns
NOTES:
1. Minimums are guaranteed but not production tested.
2. This parameter is guaranteed but not production tested.
3. The bus switch contributes no propagation 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 CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical
driving signals, it adds very little propagation delay to the system. Propagation 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.
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