74ABT2240 Octal Buffer/Line Driver with 25鈩?Series Resistors in the Outputs
March 1994
Revised November 1999
74ABT2240
Octal Buffer/Line Driver with
25鈩?Series Resistors in the Outputs
General Description
The ABT2240 is an inverting octal buffer and line driver
designed to drive the capacitive inputs of MOS memory
drivers, address drivers, clock drivers, and bus-oriented
transmitters/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
74ABT2240CSC
74ABT2240CSJ
74ABT2240CMSA
74ABT2240CMTC
Package Number
M20B
M20D
MSA20
MTC20
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
Devices also available in Tape and Reel. Specify by appending letter suffix 鈥淴鈥?to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
OE
1
, OE
2
D
0
鈥揇
7
O
0
鈥揙
7
Descriptions
Output Enable Input (Active LOW)
Data Inputs
Outputs
Schematic of Each Output
Truth Table
OE
1
H
L
L
I
0鈥?
X
H
L
O
0鈥?
Z
L
H
OE
2
H
L
L
I
4鈥?
X
H
L
O
4鈥?
Z
L
H
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
漏 1999 Fairchild Semiconductor Corporation
DS011665
www.fairchildsemi.com