74AHC244 Philips Semiconductors, 74AHC244 Datasheet - Page 10

• Manufacturer Part Number: 74AHC244
• Description: Octal buffer/line driver; 3-state
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1999 Sep 28
handbook, full pagewidth
handbook, full pagewidth
Octal buffer/line driver; 3-state
AHC
AHCT
t
t
t
FAMILY
PLH
PLZ
PHZ
/t
/t
/t
PZL
PHL
TEST
PZH
GND to V
GND to 3.0 V
REQUIREMENTS
V
I
open
V
GND
INPUT
CC
CC
HIGH-to-OFF
OFF-to-HIGH
LOW-to-OFF
OFF-to-LOW
nOE INPUT
OUTPUT
OUTPUT
S
1
GENERATOR
PULSE
Fig.5 The 3-state output enable and disable times.
50% V
1.5 V
GND
GND
V OH
V CC
V OL
INPUT
V I
Fig.6 Load circuitry for switching times.
V
M
CC
V I
V M
50% V
50% V
enabled
outputs
OUTPUT
t PLZ
R T
t PHZ
V
D.U.T.
V CC
M
CC
CC
10
V OL
V OH
V O
0.3 V
0.3 V
disabled
C L
outputs
MNA183
1000
t PZL
t PZH
S1
74AHC244; 74AHCT244
V M
open
GND
V CC
V M
outputs
enabled
MNA172
Product specification