SN74LS243 Series

Quad bus transceivers

Catalog

Quad bus transceivers

Part	Mounting Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Output Type	Number of Bits per Element	Operating Temperature [Max]	Operating Temperature [Min]	Number of Elements	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Supply [Min]	Voltage - Supply [Max]
Texas Instruments SN74LS243N	Through Hole	15 mA	24 mA	Push-Pull	4	70 °C	0 °C	1	14-DIP	7.62 mm	0.3 "	4.75 V	5.25 V
Texas Instruments SN74LS243D	Surface Mount	15 mA	24 mA	Push-Pull	4	70 °C	0 °C	1	14-SOIC	3.9 mm	0.154 in	4.75 V	5.25 V

Catalog

Quad bus transceivers

Key Features

• Two-Way Asynchronous Communication Between Data BusesPNP Inputs Reduce D-C LoadingHysteresis (Typically 400 mV) at Inputs Improves Noise MarginTwo-Way Asynchronous Communication Between Data BusesPNP Inputs Reduce D-C LoadingHysteresis (Typically 400 mV) at Inputs Improves Noise Margin

Description

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. SN54LS243 is characterized for operation over the full military temperature range of –55°C to 125°C. SN74LS243 is characterized for operation from 0°C to 70°C. 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. SN54LS243 is characterized for operation over the full military temperature range of –55°C to 125°C. SN74LS243 is characterized for operation from 0°C to 70°C.