IDT49FCT20805
2.5V CMOS DUAL 1-TO-5 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
V
CC
4.6V
Open
GND
500
V
IN
Pulse
Generator
R
T
D.U.T
R
L
V
OUT
C
L
500
Enable and Disable Time Circuit
V
CC
INPUT
t
PLH1
t
PHL1
V
IN
Pulse
Generator
R
T
D.U.T
R
L
V
OUT
C
L
OUTPUT 1
t
SK(o)
OUTPUT 2
t
PLH2
t
PHL2
t
SK(o)
2.5V
1.25V
0V
V
OH
1.25V
V
OL
V
OH
1.25V
V
OL
t
SK(o)
= |t
PLH2 -
t
PLH1
|
or
|t
PHL2 -
t
PHL1
|
C
L
= 15pF Test Circuit
Output Skew - t
SK(O)
SWITCH POSITION
Test
Disable Low
Enable Low
Disable High
Enable High
Switch
4.6V
GND
TEST CONDITIONS
Symbol
C
L
R
T
R
L
t
R
/ t
F
V
CC
= 2.5V ±0.2V
15
Z
OUT
of pulse generator
33
1 (0V to 2.5V or 2.5V to 0V)
Unit
pF
Ω
Ω
ns
DEFINITIONS:
C
L
= Load capacitance: includes jig and probe capacitance.
R
T
= Termination resistance: should be equal to Z
OUT
of the Pulse Generator.
t
R
/ t
F
= Rise/Fall time of the input stimulus from the Pulse Generator.
6
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
