SN74ABT620N ,Octal Bus Transceivers With 3-State Outputs SN54ABT620, SN74ABT620 OCTAL BUS TRANSCEIVERSWITH 3-STATE OUTPUTSSCBS113D – FEBRUARY 1991 – REVISE ..
SN74ABT623 ,Octal Bus Transceivers With 3-State Outputs SN54ABT623A, SN74ABT623 OCTAL BUS TRANSCEIVERSWITH 3-STATE OUTPUTSSCBS114D – FEBRUARY 1991 – REVIS ..
SN74ABT623DBR ,Octal Bus Transceivers With 3-State Outputsmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
SN74ABT623DWR ,Octal Bus Transceivers With 3-State Outputsmaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
SN74ABT623N ,Octal Bus Transceivers With 3-State Outputslogic diagram (positive logic)19OEBA1OEAB218A1B1To Seven Other Channels2POST OFFICE BOX 655303 • DA ..
SN74ABT623NSR , OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74LS156DR2 , DUAL 1-OF-4 DECODER/ DEMULTIPLEXERSN54/74LS155DUAL 1-OF-4 DECODER/SN54/74LS156DEMULTIPLEXERThe SN54/74LS155 and SN54/74LS156 are high ..
SN74LS156N ,DUAL 1-OF-4 DECODER/ DEMULTIPLEXERSN54/74LS155DUAL 1-OF-4 DECODER/SN54/74LS156DEMULTIPLEXERThe SN54/74LS155 and SN54/74LS156 are high ..
SN74LS156NSR ,Dual 2-Line to 4-Line Decoders/Demultiplexers with Open-Collector Outputs
SN74LS157 ,QUAD 2-INPUT MULTIPLEXER
SN74LS157 ,QUAD 2-INPUT MULTIPLEXERSN54/74LS157QUAD 2-INPUT MULTIPLEXERThe LSTTL/ MSI SN54/ 74LS157 is a high speed Quad 2-Input Multi ..
SN74LS157DR ,Quadruple 2-Line To 1-Line Data Selectors/Multiplexers
SN74ABT620DW-SN74ABT620N
Octal Bus Transceivers With 3-State Outputs
Latch-Up Performance Exceeds 500 mA PerJESD 17 Typical VOLP (Output Ground Bounce) < 1 V
at VCC = 5 V, TA = 25°C High-Drive Outputs (–32-mA IOH,
64-mA IOL) Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK), and
Plastic (N) and Ceramic (J) DIPs
descriptionThese octal bus transceivers provide for
asynchronous communication between data
buses. The control-function implementation
allows for maximum flexibility in timing. The
’ABT620 devices provide inverted data at the
outputs.
These devices allow data transmission from the
A bus to the B bus or from the B bus to the A bus,
depending on the logic levels at the output-enable
(OEAB and OEBA) inputs.
The output-enable inputs can be used to disable the device so that the buses are effectively isolated. The
dual-enable configuration gives the transceivers the capability of storing data by simultaneously enabling OEAB
and OEBA. When both OEAB and OEBA are enabled and all other data sources to the two sets of bus lines
are at high impedance, both sets of bus lines (16 total) remain at their last states. In this way, each output
reinforces its input in this configuration.
To ensure the high-impedance state during power up or power down, OEBA 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.
OEAB should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by
the current-sourcing capability of the driver.
The SN54ABT620 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74ABT620 is characterized for operation from –40°C to 85°C.
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.
GND
SN54ABT620... FK PACKAGE
(TOP VIEW)A1OEABB6
OEBA
GND
