SN74ACT240DW ,Octal Buffers/Drivers With 3-State OutputsSN54ACT240, SN74ACT240OCTAL BUFFERS/DRIVERSWITH 3-STATE OUTPUTSSCAS515C − JUNE 1995 − REVISED OCTOB ..
SN74ACT240DWR ,Octal Buffers/Drivers With 3-State Outputs/sc/package.Please be aware that an important notice concerning availability, standard warranty, an ..
SN74ACT240N ,Octal Buffers/Drivers With 3-State Outputsmaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
SN74ACT240PW ,Octal Buffers/Drivers With 3-State Outputsmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
SN74ACT240PWR ,Octal Buffers/Drivers With 3-State Outputsmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
SN74ACT241PWR ,Octal Buffers/Drivers With 3-State Outputsmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
SN74LS245NE4 ,Octal bus transceivers 20-PDIP 0 to 70Logic Diagram (Positive Logic)1DIR19OE2A118B1To Seven Other ChannelsCopyright 2016, Texas Instrume ..
SN74LS245NSR ,Octal bus transceiversFeatures... 19.4 Device Functional Modes...... 82 Applications..... 110 Application and Implementat ..
SN74LS247N ,BCD-to-seven-segment decoder/driverSN54/74LS247SN54/74LS248SN54/74LS249BCD-TO-SEVEN-SEGMENTDECODERS/DRIVERSThe SN54/74LS247 thru SN54/ ..
SN74LS248N ,BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS
SN74LS249N ,BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERSSN54/74LS247SN54/74LS248SN54/74LS249BCD-TO-SEVEN-SEGMENTDECODERS/DRIVERSThe SN54/74LS247 thru SN54/ ..
SN74LS249N ,BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERSSN54/74LS247SN54/74LS248SN54/74LS249BCD-TO-SEVEN-SEGMENTDECODERS/DRIVERSThe SN54/74LS247 thru SN54/ ..
SN74ACT240DBR-SN74ACT240DW-SN74ACT240DWR-SN74ACT240N-SN74ACT240PW-SN74ACT240PWR
Octal Buffers/Drivers With 3-State Outputs
SN54ACT240, SN74ACT240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS515C − JUNE 1995 − REVISED OCTOBER 2002
4.5-V to 5.5-V VCC Operation Inputs Accept Voltages to 5.5 V Max tpd of 8.5 ns at 5 V Inputs Are TTL Compatible
SN54ACT240 ...J OR W PACKAGE
SN74ACT240... DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)21 201910111213
1Y1
2A4
1Y2
2A3
1Y3
1A2
2Y3
1A3
2Y2
1A4
SN54ACT240...FK PACKAGE
(TOP VIEW)2Y41A11OE
1Y42A2
2OE
2Y1
GND
2A1
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
description/ordering informationThese octal buffers and line drivers are designed specifically to improve the performance and density of 3-state
memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
The ’ACT240 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When
OE is low, the device passes inverted data from the A inputs to the Y outputs. When OE is high, the outputs are
in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
