74LCX240 ,Low-Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputsapplications with capa-CCreduction circuitrybility of interfacing to a 5V signal environment.YFunct ..
74LCX240FT ,74LCX low voltage CMOS logic IC seriesabsolute maximum ratings, even briefly, lead to deterioration in IC performance or evendestruction. ..
74LCX240M ,LOW VOLTAGE CMOS OCTAL BUS BUFFER (INVERTED) WITH 5V TOLERANT INPUTS AND OUTPUTSAbsolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
74LCX240MSA ,Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and OutputsFeaturesThe LCX240 is an inverting octal buffer and line driver
74LCX240
Low-Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs
TL/F/11993
74LCX240
Low-Voltage
Octal
Buffer/Line
Driver
with
Tolerant
Inputs
and
Outputs
December 1996
74LCX240
Low-Voltage Octal Buffer/Line Driver
with 5V Tolerant Inputs and Outputs
General Description
The LCX240isan inverting octal bufferandline driverde-
signedtobe employedasa memory address driver, clock
driverandbus oriented transmitteror receiver. Thedeviceis
designedforlow voltage (3.3V) VCC applications with capa-
bilityof interfacingtoa5V signal environment.
The LCX240is fabricatedwithan advanced CMOS technol-
ogyto achieve high speed operation while maintaining
CMOSlow power dissipation.
Features5V tolerant inputsand outputs6.5nstPD max,10 mAICCQ max Power-down high impedance inputs and outputs Supportslive insertion/withdrawal 2.0V–3.6V VCC supply operation g24mA output drive Implements patented Quiet SeriesTM noise/EMI
reduction circuitry Functionally compatible withthe74 series240 Latch-up performance exceeds 500mA ESD performance:
Human Body Modell 2000V
Machine Modell 200V
Logic Symbol
IEEE/IEC
TL/F/11993–1
Connection Diagram
Pin Assignment
for SOIC, SSOP andTSSOP
TL/F/11993–2
Pin Names Description
OE1,OE2 TRI-STATEÉ Output Enable Inputs
I0–I7 Inputs
O0–O7 OutputsTruth Tables
Inputs
(Pins12,14, 16,18)
Outputs
OE1 In H L Z
Inputs Outputs
OE2 In (Pins3, 5,7,9) H L Ze HIGH Voltage LevelLe LOW Voltage LevelXe ImmaterialZe HighImpedance
SOIC JEDEC SOIC EIAJ SSOPTypeII TSSOP
Order Number 74LCX240WM 74LCX240SJ 74LCX240MSA 74LCX240MTC
74LCX240WMX 74LCX240SJX 74LCX240MSAX 74LCX240MTCX
SeeNS PackageNumber M20B M20D MSA20 MTC20
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorporation.
QuietSeriesTMisa trademark ofNationalSemiconductor Corporation.
C1996National SemiconductorCorporation RRD-B30M17/Printed inU.S.A. http://
