Diodes 74LVC1T45 - Manual (Page 8)

74LVC1T45
Document number: DS35804 Rev. 2 - 2
8 of 14
www.diodes.com
June 2013
© Diodes Incorporated
74LVC1T45
Parameter Measurement Information
R
L
R
L
C
L
(see Note A)
From Output
Under Test
V
LOAD
Open
GND
S1 TEST S1
t
PLH
/t
PHL
Open
t
PLZ
/t
PZL
Vload
t
PHZ
/t
PZH
GND
V
CC
Inputs
V
M
V
LOAD
C
L
R
L
V•
V
I
t
r
/t
f
1.8V±0.15V V CCI • 2ns V CCO /2 2 X V CCO 15pF 2K• 0.15V
2.5V±0.2V V
CC
• 2ns V
CCO
/2 2 X V
CCO
15pF 2K•
0.15V
3.3V±0.3V 3V • 2.5ns V CCO /2 2 X V CCO
15pF 2K•
0.3V
5V±0.5V V
CC
• 2.5ns V
CCO
/2 2 X V
CCO
15pF 2K•
0.3V
Input
t
W
V
l
0 V
V
CCI
/2 V
CCI
/2
Voltage Waveform Pulse Duration
Output
Control
V
M
V
M
V
l
0 V
t
PZL
t
PZH
V
M
V
LOAD /2
V
M
t
PHZ
V OH
V OL
V OH - V
Output
Waveform 1
S1 at V
LOAD
(see Note B) V OL + V
Output
Waveform 2
S1 at GND
(see Note B)
t
PLZ
0V
Voltage Waveform Enable and Disable Times
Low and High Level Enabling
Input V
M
V
M
V
l
0 V
t
PHL
t
PLH
t
PHL
V
M
V
M
V
M
t
PLH
V OH
V OL
V OH
V OL
Output
Output V
M
Voltage Waveform Propagation Delay Times
Inverting and Non Inverting Outputs
Figure 1. Load Circuit and Voltage Waveforms
Notes: A. Includes test lead and test apparatus capacitance.
B. Waveform 1 is for an output with input set up as a low and device coming out or into 3-state via DIR control.
Waveform 2 is for an output with input set up as a high and device coming out or into 3-state via DIR control.
C. All pulses are supplied at pulse repetition rate • 10 MHz.
D. t
PLZ
and t
PHZ
are the same as t
dis.
E. t
PZL
and t
PZH
are the same as t
EN.
F. t
PLH
and t
PHL
are the same as t
PD.
G. V
CCI
is the V
CC
associated with the input.
F. V CCO is the V CC associated with the output.