5
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH16800
2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C
VCC = 2.5 ± 0.2V
(1)
VCC = 3.3 ± 0.3V
(1)
Symbol Parameter Test Conditions Min.
(4)
Max. Min.
(4)
Max. Unit
t
PLH Data Propagation Delay
(2,3)
⎯ 0.2 ⎯ 0.2 ns
tPHL Ax to Bx or Bx to Ax
t
PZL Switch Turn-On Delay VBIAS = 3V 1.5 8.5 1.5 8 ns
tPZH OEx to Ax/Bx VBIAS = GND
t
PLZ Switch Turn-Off Delay VBIAS = 3V 1.5 7.5 1.5 7.5 ns
tPHZ OEx to Ax/Bx VBIAS = GND
f
OEx Operating Frequency - Enable
(2,5)
VBIAS = OPEN ⎯ 10 ⎯ 20 MHz
(OEx)
NOTES:
1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS.
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 0.2ns 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.
4. Minimums are guaranteed but not production tested.
5. Maximum toggle frequency for OEx control input (pass voltage > VCC, VIN = 5V, RLOAD > 1MΩ, no CLOAD).