Datasheet

74LVT_LVTH244B_3 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet Rev. 03 — 3 March 2006 8 of 15
Philips Semiconductors
74LVT244B; 74LVTH244B
3.3 V octal buffer/line driver; 3-state
12. Waveforms
Measurement points are given in Table 9.
V
OL
and V
OH
are typical voltage output drop that occur with the output load.
Fig 4. Propagation delay input (nAn) to output (nYn)
Measurement points are given in Table 9.
V
OL
and V
OH
are typical voltage output drop that occur with the output load.
Fig 5. 3-state output enable and disable times
Table 9. Measurement points
Input Output
V
M
V
M
V
X
V
Y
1.5 V 1.5 V V
OL
+ 0.3 V V
OH
− 0.3 V
mna171
nAn input
nYn output
t
PLH
t
PHL
GND
V
I
V
M
V
M
V
M
V
M
V
OH
V
OL
001aae464
t
PZL
nYn output
nYn output
nOE input
V
OL
V
OH
3.0 V
V
I
V
M
GND
0 V
t
PLZ
t
PZH
t
PHZ
V
X
V
Y
V
M
V
M