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General-purpose transceivers

SN74LS243

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Quad bus transceivers

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Data sheet

SN74LS243

ACTIVE
Data sheet Order now

Product details

Number of channels 4 IOL (max) (mA) 24 IOH (max) (mA) -15 Input type TTL Output type TTL Features High speed (tpd 10-50ns) Technology family LS Rating Catalog Operating temperature range (°C) 0 to 70
Number of channels 4 IOL (max) (mA) 24 IOH (max) (mA) -15 Input type TTL Output type TTL Features High speed (tpd 10-50ns) Technology family LS Rating Catalog Operating temperature range (°C) 0 to 70
SOIC (D) 14 51.9 mm² (8.65 mm × 6 mm) PDIP (N) 14 181.42 mm² (19.3 mm × 9.4 mm)
  • Two-Way Asynchronous Communication Between Data Buses
  • PNP Inputs Reduce D-C Loading
  • Hysteresis (Typically 400 mV) at Inputs Improves Noise Margin
  • Two-Way Asynchronous Communication Between Data Buses
  • PNP Inputs Reduce D-C Loading
  • Hysteresis (Typically 400 mV) at Inputs Improves Noise Margin

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.
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* Data sheet Quadruple Bus Transceivers datasheet (Rev. A) Jul 9, 2008

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