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FB2040A - 8-bit Futurebus transceiver

General Description

The FB2040A is an 8-bit bidirectional BTL transceiver and is intended to provide the electrical interface to a high performance wired-OR bus.

The FB2040A is an inverting transceiver.

The B-port drivers are Low-capacitance open collectors with controlled ramp and are designed to sink 100mA.

Key Features

  • 8-bit BTL transceivers.
  • Separate I/O on TTL A-port.
  • Inverting.
  • Drives heavily loaded backplanes with equivalent load impedances down to 10Ω.
  • Compatible with IEEE Futurebus+ or proprietary BTL backplanes.
  • Controlled output ramp and multiple GND pins minimize ground bounce.
  • High drive 100mA BTL open collector drivers on B-port.
  • Allows incident wave switching in heavily loaded backplane buses.
  • Reduced BTL voltage.

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Philips Semiconductors Product specification 8-bit Futurebus+ transceiver FB2040A FEATURES • 8-bit BTL transceivers • Separate I/O on TTL A-port • Inverting • Drives heavily loaded backplanes with equivalent load impedances down to 10Ω.