74ABT2244 Octal Buffer/Line Driver with 25鈩?Series Resistors in the Outputs
May 1992
Revised November 1999
74ABT2244
Octal Buffer/Line Driver with
25鈩?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 25鈩?series resistors in the outputs reduce ringing and
eliminate the need for external resistors.
Features
s
Guaranteed latchup protection
s
High impedance glitch-free bus loading during entire
power up and power down cycle
s
Nondestructive hot insertion capability
Ordering Code:
Order Number
74ABT2244CSC
74ABT2244CSJ
74ABT2244CMSA
74ABT2244CMTC
74ABT2244CPC
Package Number
M20B
M20D
MSA20
MTC20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300鈥?Wide Body
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
Devices are also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
OE
1
, OE
2
I
0
鈥揑
7
O
0
鈥揙
7
Description
Output Enable Input
(Active LOW)
Inputs
Outputs
Schematic of Each Output
Truth Table
OE
1
H
L
L
I
0鈥?
X
H
L
O
0鈥?
Z
H
L
OE
2
H
L
L
I
4鈥?
X
H
L
O
4鈥?
Z
H
L
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
漏 1999 Fairchild Semiconductor Corporation
DS010991
www.fairchildsemi.com