74ABT244 Octal Buffer/Line Driver with 3-STATE Outputs
December 2007
74ABT244
Octal Buffer/Line Driver with 3-STATE Outputs
Features General Description
Non-inverting buffers The ABT244 is an octal buffer and line driver with
3-STATE outputs designed to be employed as a memory
Output sink capability of 64mA, source capability of
and address driver, clock driver, or bus-oriented trans-
32mA
mitter/receiver.
Guaranteed output skew
Guaranteed multiple output switching specifications
Output switching specified for both 50pF and 250pF
loads
Guaranteed simultaneous switching, noise level and
dynamic threshold performance
Guaranteed latchup protection
High-impedance, glitch-free bus loading during entire
power up and power down cycle
Nondestructive, hot-insertion capability
Disable time less than enable time to avoid bus
contention
Ordering Information
Package
Order Number Number Package Description
74ABT244CSC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013,
0.300" Wide
74ABT244CSJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ABT244CMSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150,
5.3mm Wide
74ABT244CMTC 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 number.
All packages are lead free per JEDEC: J-STD-020B standard.
1992 Fairchild Semiconductor Corporation www.fairchildsemi.com
74ABT244 Rev. 1.5.074ABT244 Octal Buffer/Line Driver with 3-STATE Outputs
Connection Diagram Pin Descriptions
Pin Names Description
OE , OE Output Enable Input (Active LOW)
1 2
I Inputs
I
0 7
O O Outputs
0 7
Truth Table
OE I O OE I O
1 03 03 2 47 47
HX Z H X Z
LH HLH H
LLLLLL
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
1992 Fairchild Semiconductor Corporation www.fairchildsemi.com
74ABT244 Rev. 1.5.0 2