74ABT240 Octal Buffer/Line Driver with 3-STATE Outputs
March 1994
Revised November 1999
74ABT240
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The ABT240 is an inverting octal buffer and line driver
designed to be employed as a memory address driver,
clock driver and bus oriented transmitter or receiver which
provides improved PC board density.
Features
s
Output sink capability of 64 mA, source capability of
32 mA
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
74ABT240CSC
74ABT240CSJ
74ABT240CMSA
74ABT240CMTC
Package Number
M20B
M20D
MSA20
MTC20
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” 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
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
OE
1
, OE
2
Description
3-STATE Output
Enable Inputs
I
0
–I
7
O
0
–O
7
Inputs
Outputs
Truth Tables
Inputs
OE
1
L
L
H
Inputs
OE
2
L
L
H
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
I
n
L
H
X
Outputs
(Pins 12, 14, 16, 18)
H
L
Z
Outputs
(Pins 3, 5, 7, 9)
H
L
Z
I
n
L
H
X
© 1999 Fairchild Semiconductor Corporation
DS011664
www.fairchildsemi.com
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
