SN74LS243 Datasheet

The SN74LS243 is a QUAD BUS TRANSCEIVER.

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Part NumberSN74LS243
ManufacturerMotorola Semiconductor
Overview QUAD BUS TRANSCEIVER The SN54/ 74LS242 and SN54 / 74LS243 are Quad Bus Transmitters / Receivers designed for 4-line asynchronous 2-way data communications between data buses. SN54/74LS242 SN54/74LS24. H (Z) H L INPUTS OUTPUT GAB L L H D L H X L H (Z) INPUTS OUTPUT GAB L H H D X L H (Z) H L SN54/74LS243 INPUTS OUTPUT H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = HIGH Impedance FAST AND LS TTL DATA 5-393 SN54/74LS242
* SN54/74LS243 GUARANTEED OPERATING RANGES Symbol VCC TA IO.
Part NumberSN74LS243
DescriptionQUADRUPLE BUS TRANSCEIVERS
ManufacturerTexas Instruments
Overview These four-data-line transceivers are designed for asynchronous two-way communications between data buses. SN74LS243 can be used to drive terminated lines down to 133 Ω. SN54LS243 is characterized for. 1
* Two-Way Asynchronous Communication Between Data Buses
* PNP Inputs Reduce D-C Loading
* Hysteresis (Typically 400 mV) at Inputs Improves Noise Margin SN54LS243 . . . J OR W PACKAGE SN74LS243 . . . D, N, OR NS PACKAGE (TOP VIEW) GAB NC A1 A2 A3 A4 GND 1 2 3 4 5 6 7 14 VCC 13 GBA 12 NC 11 B1 1.