74LVT2244 Datasheet, PDF (1/8 Pages) NXP Semiconductors – 3.3V Octal buffer/line driver with 30ohm series termination resistors 3-State

ADVANCE INFORMATION
December 1996
74LVT2244
3 3V ABT Octal Buffer Line Driver
with TRI-STATE Outputs
General Description
The LVT2244 is an octal buffer and line driver designed to
be employed as a memory address driver clock driver and
bus oriented transmitter or receiver which provides im-
proved PC board density The equivalent 25X-Series resis-
tor helps reduce output overshoot and undershoot
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 LVT2244
is fabricated with an advanced BiCMOS technology to
achieve high speed operation similar to 5V ABT while main-
taining a low power dissipation
Features
Y _{Input and output interface capability to systems at 5V}
V_CC
Y _{Bus-Hold data inputs eliminate the need for external}
pull-up resistors to hold unused inputs
Y _{Equivalent 25X-Series resistor on outputs}
Y _{Live insertion extraction permitted}
Y _{Power Up Down high impedance provides glitch-free}
bus loading
Y _{Outputs source sink} b_{12 mA} a_{12 mA}
Y _{Available in SOIC JEDEC SOIC EIAJ TSSOP and}
SSOPII
Y _{Latch-up performance exceeds 500 mA}
Logic Symbol
IEEE IEC
Connection Diagram
Pin Assignment
for SOIC TSSOP and SSOPII
TL F 12170 – 2
TL F 12170 – 1
Truth Tables
Inputs
OE₁
I_n
L
L
L
H
H
X
Outputs
(Pins 12 14 16 18)
L
H
Z
H e HIGH Voltage Level
L e LOW Voltage Level
Inputs
OE₂
L
L
H
X e Immaterial
Outputs
I_n
(Pins 3 5 7 9)
L
L
H
H
X
Z
Z e High Impedance
Pin Names
Description
SOIC JEDEC SOIC EIAJ TSSOP JEDEC
SSOPII
OE₁ OE₂
I₀ – I₇
O₀ – O₇
TRI-STATE Output
Enable Inputs
Inputs
Outputs
Order 74LVT2244WM 74LVT2244SJ 74LVT2244MTC 74LVT2244MSA
Number 74LVT2244WMX 74LVT2244SJX 74LVT2244MTCX 74LVT2244MSAX
See NS
Package
Number
M20B
M20D
MTC20
MSA20
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1996 National Semiconductor Corporation TL F 12170
RRD-B30M17 Printed in U S A
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