74LVT244 ,3.3V ABT Octal Buffer/Line Driver with TRI-STATE OutputsFeaturesYInput and output interface capability to systems at 5VThe LVT244isan octalbuffer and line ..
74LVT244BD ,3.3V Octal buffer/line driver 3-State
74LVT244BDB ,3.3V Octal buffer/line driver 3-State
74LVT244MSAX ,Low Voltage Octal Buffer/Line Driver with 3-STATE OutputsFeaturesThe LVT244 and LVTH244 are octal buffers and line drivers
74LVT244
3.3V ABT Octal Buffer/Line Driver with TRI-STATE Outputs
TL/F/12014
74LVT244
3.3V
ABT
Octal
Buffer/Line
Driver
with
TRI-STATE
Outputs
August 1996
74LVT244
3.3V ABT Octal Buffer/Line Driver
with TRI-STATEÉ Outputs
General Description
The LVT244isan octal buffer andline driverdesignedtobe
employedasa memory address driver, clock driverandbus
orientedtransmitteror receiver which provides improvedPC
board density.
These octal buffers andline driversare designedfor low-
voltage (3.3V) VCC applications,but withthe capabilityto
provideaTTL interfacetoa5V environment.The LVT244is
fabricatedwithan advanced BiCMOStechnologyto achieve
high speed operation similarto5V ABT while maintaininga
low power dissipation.
Features Inputand output interface capabilityto systemsat5V
VCC Bus-Hold data inputs eliminatethe needfor external
pull-up resistorsto hold unused inputs Live insertion/extraction permitted Power Up/Down high impedance provides glitch-free
bus loading Outputs source/sink b32 mA/a64mA Availablein SOIC JEDEC, SOIC EIAJ, TSSOP and
SSOPII Functionally compatible withthe74 series244 Latch-up performance exceeds 500mA
Logic Symbol
IEEE/IEC
TL/F/12014–1
Connection Diagram
PinAssignment
forSOIC, TSSOPand SSOPII
TL/F/12014–2
Truth Tables
Inputs Outputs
OE1 In (Pins12,14, 16,18) L H Z
Inputs Outputs
OE2 In (Pins3, 5,7,9) L H Ze HIGH Voltage Level L eLOWVoltageLevel Xe Immaterial Z eHighImpedance
Pin Names Description
OE1,OE2 TRI-STATEOutput
EnableInputs
I0–I7 Inputs
O0–O7 Outputs
SOIC JEDEC SOIC EIAJ TSSOPJEDEC SSOPII
Order 74LVT244WM 74LVT244SJ 74LVT244MTC 74LVT244MSA
Number 74LVT244WMX 74LVT244SJX 74LVT244MTCX 74LVT244MSAX
SeeNS M20B M20D MTC20 MSA20
Package
Number
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorporation.
C1996National SemiconductorCorporation RRD-B30M17/Printed inU.S.A. http://
