IDTQS3VH244
2.5V/3.3V8-BITHIGHBANDWIDTHBUSSWITCH
INDUSTRIALTEMPERATURERANGE
TESTCIRCUITSANDWAVEFORMS
TESTCONDITIONS
VIH
VT
SAME PHASE
INPUT TRANSITION
Symbol
VLOAD
VIH
VCC(1)= 3.3V ± 0.3V
VCC(2)= 2.5V ± 0.2V
Unit
0V
tPHL
tPHL
tPLH
tPLH
6
2 x Vcc
Vcc
V
VOH
VT
OUTPUT
3
V
VOL
VT
1.5
300
300
50
VCC/2
150
V
VIH
VT
OPPOSITE PHASE
INPUT TRANSITION
VLZ
mV
mV
pF
0V
VHZ
150
CL
30
Propagation Delay
VLOAD
Open
GND
VCC
DISABLE
tPLZ
ENABLE
VIH
CONTROL
INPUT
VT
0V
500Ω
tPZL
VIN
VOUT
Pulse(1, 2)
VLOAD/2
VT
D.U.T.
VLOAD/2
OUTPUT
NORMALLY
LOW
Generator
SWITCH
CLOSED
VOL + VLZ
VOL
500Ω
tPHZ
RT
tPZH
CL
VOH
VOH -VHZ
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
VT
0V
0V
Test Circuits for All Outputs
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Enable and Disable Times
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
NOTES:
1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns.
SWITCHPOSITION
Test
tPLZ/tPZL
tPHZ/tPZH
tPD
Switch
VLOAD
GND
Open
7
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