Datasheet

74LVT245 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 4 — 24 December 2013 8 of 16
NXP Semiconductors 74LVT245
3.3 V octal transceiver with direction pin (3-state)
Table 8. Measurement points
V
CC
Input Output
V
I
V
M
V
M
V
X
V
Y
2.7 V to 3.6 V GND to 2.7 V 1.5 V 1.5 V V
OL
+ 0.3 V V
OH
 0.3 V
Test data is given in Table 9.
Definitions test circuit:
R
L
= Load resistance.
C
L
= Load capacitance including jig and probe capacitance.
R
T
= Termination resistance should be equal to output impedance Z
o
of the pulse generator.
V
EXT
= External voltage for measuring switching times.
Fig 7. Test circuit for switching times
V
EXT
V
CC
V
I
V
O
001aae235
DUT
C
L
R
T
R
L
R
L
PULSE
GENERATOR
V
M
V
M
t
W
t
W
10 %
90 %
0 V
V
I
V
I
negative
pulse
positive
pulse
0 V
V
M
V
M
90 %
10 %
t
f
t
r
t
r
t
f
Table 9. Test data
Input Load V
EXT
V
I
f
i
t
W
t
r
, t
f
R
L
C
L
t
PHZ
, t
PZH
t
PLZ
, t
PZL
t
PLH
, t
PHL
2.7 V  10 MHz 500 ns  2.5 ns 500  50 pF GND 6 V open