© 1999 Fairchild Semiconductor Corporation DS010991 www.fairchildsemi.com
May 1992
Revised November 1999
7
4
AB
T2
244 Oct
a
l
Buff
er/
L
i
n
e Dr
iver
wi
th
25
Ω
Seri
es
Resis
t
ors
i
n
t
h
e Out
puts
74ABT2244
Octal Buffer/Line Driver with
25Ω Series Resistors in the Outputs
General Description
The ABT2244 is an octal buffer and line driver designed to
drive the capacitive inputs of MOS memory drivers,
address drivers, clock drivers, and bus-oriented transmit-
ters/receivers.
The 25Ω series resistors in the outputs reduce ringing and
eliminate the need for external resistors.
Features
a73 Guaranteed latchup protection
a73 High impedance glitch-free bus loading during entire
power up and power down cycle
a73 Nondestructive hot insertion capability

Ordering Code:
Devices are also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Schematic of Each Output
Pin Descriptions
Truth Table
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Order Number Package Number Package Description
74ABT2244CSC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
74ABT2244CSJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ABT2244CMSA MSA20 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74ABT2244CMTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ABT2244CPC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Pin Names Description
OE
1
, OE
2
Output Enable Input
(Active LOW)
I
0
–I
7
Inputs
O
0
–O
7
Outputs
OE
1
I
0–3
O
0–3
OE
2
I
4–7
O
4–7
HXZHXZ
LHHLHH
LLLLLL