NXP Semiconductors
74LVC244A; 74LVCH244A
Octal buffer/line driver; 3-state
V
I
nOE input
GND
t
PLZ
V
CC
output
LOW-to-OFF
OFF-to-LOW
V
OL
t
PHZ
V
OH
output
HIGH-to-OFF
OFF-to-HIGH
GND
outputs
enabled
V
Y
V
M
V
M
V
X
t
PZH
t
PZL
V
M
outputs
disabled
outputs
enabled
mna362
Measurement points are given in
Logic levels: V
OL
and V
OH
are typical output voltage levels that occur with the output load.
Fig 7.
Table 8.
V
CC
1.2 V
2.7 V
3-state enable and disable times.
Measurement points
Input
V
I
V
CC
2.7 V
2.7 V
V
M
0.5
×
V
CC
1.5 V
1.5 V
Output
V
M
0.5
×
V
CC
1.5 V
1.5 V
V
X
V
OL
+ 0.1 V
V
OL
+ 0.3 V
V
OL
+ 0.3 V
V
Y
V
OH
−
0.1 V
V
OH
−
0.3 V
V
OH
−
0.3 V
Supply voltage
3.0 V to 3.6 V
74LVC_LVCH244A_6
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 06 — 13 August 2009
9 of 18
PHILIPS [ NXP SEMICONDUCTORS ]
