© 2005 Fairchild Semiconductor Corporation DS500154 www.fairchildsemi.com
July 1999
Revised March 2005
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74LVT244 74LVTH244
Low Voltage Octal Buffer/Line Driver
with 3-STATE Outputs
General Description
The LVT244 and LVTH244 are octal buffers and line drivers
designed to be employed as memory address drivers,
clock drivers and bus oriented transmitters or receivers
which provide improved PC board density.
The LVTH244 data inputs include bushold, eliminating the
need for external pull-up resistors to hold unused inputs.
These octal buffers and line drivers are designed for low-
voltage (3.3V) V
CC
applications, but with the capability to
provide a TTL interface to a 5V environment. The LVT244
and LVTH244 are fabricated with an advanced BiCMOS
technology to achieve high speed operation similar to 5V
ABT while maintaining low power dissipation.
Features
a73 Input and output interface capability to systems at
5V V
CC
a73 Bushold data inputs eliminate the need for external
pull-up resistors to hold unused inputs (74LVTH244),
also available without bushold feature (74LVT244)
a73 Live insertion/extraction permitted
a73 Power Up/Down high impedance provides glitch-free
bus loading
a73 Outputs source/sink c1632 mA/c1464 mA
a73 Functionally compatible with the 74 series 244
a73 Latch-up performance exceeds 500 mA
a73 ESD performance:
Human-body model c33 2000V
Machine model c33 200V
Charged-device model c33 1000V

Ordering Code:
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.
Note 1: “_NL” indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only.
Order Number
Package
Package Description
Number
74LVT244WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LVT244WMX_NL
(Note 1)
M20B Pb-Free 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LVT244SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVT244MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
74LVT244MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74LVT244MTCX_NL
(Note 1)
MTC20 Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
74LVTH244WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LVTH244SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVTH244MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
74LVTH244MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74LVTH244MTCX_NL
(Note 1)
MTC20 Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide