74ABT240 Datasheet, PDF (1/8 Pages) NXP Semiconductors – Octal inverting buffer 3-State

March 1994
Revised March 2005
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 Package Number
Package Description
74ABT240CSC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74ABT240CSJ
M20D
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ABT240CMSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
74ABT240CMTC
MTC20
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.
Pb-Free package per JEDEC J-STD-020B.
Connection Diagram
Pin Descriptions
Pin Names
OE₁, OE₂
I₀–I₇
O₀–O₇
Truth Tables
Description
3-STATE Output
Enable Inputs
Inputs
Outputs
Inputs
OE₁
I_n
L
L
L
H
H
X
Outputs
(Pins 12, 14, 16, 18)
H
L
Z
Inputs
OE₂
I_n
L
L
L
H
H
X
H HIGH Voltage Level
L LOW Voltage Level
X Immaterial
Z High Impedance
Outputs
(Pins 3, 5, 7, 9)
H
L
Z
© 2005 Fairchild Semiconductor Corporation DS011664
www.fairchildsemi.com