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4
INDUSTRIALTEMPERATURERANGE
IDTQS3LR384
HIGH-SPEED CMOS 10-BIT LOW POWER LOW RESISTANCE BUS SWITCH
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TTL-driven input (VIN = 3.4V, control inputs only). A and B 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 B inputs generate no significant
AC or DC currents as they transition. This parameter is guaranteed but not production tested.
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
TestConditions(1)
Typ.
Max.
Unit
ICCQ
Quiescent Power Supply Current
VCC = Max., VIN = GND or VCC, f = 0
0.2
3
A
ICC
Power Supply Current per Input HIGH(2)
VCC = Max., VIN = 3.4V, f = 0
2.5
mA
ICCD
Dynamic Power Supply Current per MHz(3)
VCC = Max., A and B Pins Open,
0.25
mA/MHz
Control Inputs Toggling @ 50% Duty Cycle
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C, VCC = 5V ± 5%
CLOAD = 50pF, RLOAD = 500
unless otherwise noted.
Symbol
Parameter
Min.(1)
Typ.
Max.
Unit
tPLH
DataPropagationDelay(2)
0.12(3)
ns
tPHL
Ax to Bx, Bx to Ax
tPZL
Switch Turn-On Delay
1.5
6.5
ns
tPZH
BEA, BEB to Ax, Bx
tPLZ
SwitchTurn-OffDelay(2)
1.5
5.5
ns
tPHZ
BEA, BEB to Ax, Bx
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 0.12ns at 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.