SN74LVCH244APWR ,Octal Buffer/Driver With 3-State OutputsSCES009O–JULY 1995–REVISED FEBRUARY 2007(1)Absolute
SN74LVCH244APWR ,Octal Buffer/Driver With 3-State OutputsFEATURES• Operate From 1.65 V to 3.6 V • I Supports Partial-Power-Down ModeoffOperation• Inputs Acc ..
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SN74LVCH244ARGYR ,Octal Buffer/Driver With 3-State OutputsSCES009O–JULY 1995–REVISED FEBRUARY 2007
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SN74LVCH244A-SN74LVCH244ADBR-SN74LVCH244ADW-SN74LVCH244ADWR-SN74LVCH244APW-SN74LVCH244APWR-SN74LVCH244ARGYR
Octal Buffer/Driver With 3-State Outputs
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FEATURES
SN54LVCH244A... J OR W PACKAGE
SN74LVCH244A... DB, DBQ, DGV, DW,
NS, OR PW PACKAGE
(TOP VIEW).. FK PACKAGE
(TOP VIEW)1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A121 201910111213
1Y1
2A4
1Y2
2A3
1Y3
2Y41A11OE
1Y42A2
2OE
2Y1
GND
2A1
DESCRIPTION/ORDERING
SN54LVCH244A,,
SN74LVCH244A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES009O–JULY 1995–REVISED FEBRUARY 2007 Operate From 1.65Vto 3.6V •
Ioff Supports Partial-Power-Down Mode
Operation•
Inputs Accept Voltagesto 5.5V Bus Hold on Data Inputs Eliminates the Need•
Maxtpdof 5.9nsat 3.3V
for External Pullup/Pulldown Resistors•
TypicalV OLP (Output Ground Bounce) Exceeds 250 mA Per<0.8VatVCC= 3.3V,TA= 25°C•
TypicalV OHV (OutputVOH Undershoot) JESD22>2VatVCC= 3.3V,TA= 25°C Model (A114-A)•
Support Mixed-Mode Signal
Ports Model (A115-A)
(5-V Input/Output Voltage With Model (C101)The SN54LVCH244A octal buffer/line VCC operation, and the
SN74LVCH244A octal buffer/line
These devices are organizedas (OE) inputs. When OEis low,
these devices pass data from high, the outputs arein the
high-impedance state.
Active bus-hold circuitry holds unused Useof pullupor pulldown
resistors with the bus-hold circuitry
Inputs can be driven from either 3.3-Vof these devicesas translatorsa mixed 3.3-V/5-V system environment.
These devices are fully specified The Ioff circuitry disables the damaging current powered down. the high-impedance state be tiedto VCC througha pullup the minimumof theof the driver.
