DESCRIPTION
The FB2041 is a 7-bit bidirectional BTL transceiver and is intended to provide the electrical interface to a high performance wired-OR bus. The FB2041 is an inverting transceiver.
The B-port drivers are Low-capacitance open collectors with controlled ramp and are designed to sink 100mA. Precision band gap references on the B-port insure very good noise margins by limiting the switching threshold to a narrow region centered at 1.55V.

FEATURES
•7-bit BTL transceiver
•Separate I/O on TTL A-port
•Inverting
•Three separate pairs of driver enables in a 1 bit, 3 bit, 3 bit arrangement
•Drives heavily loaded backplanes with equivalent load impedances down to 10Ω.
•High drive 100mA BTL open collector drivers on B-port
•Allows incident wave switching in heavily loaded backplane buses
•Reduced BTL voltage swing produces less noise and reduces power consumption
•Built-in precision band-gap reference provides accurate receiver thresholds and improved noise immunity
•Compatible with IEEE Futurebus+ or proprietary BTL backplanes
•Controlled output ramp and multiple GND pins minimize ground bounce
•Each BTL driver has a dedicated Bus GND for a signal return
•Glitch-free power up/power down operation
•Low ICCcurrent
•Tight output skew
•Supports live insertion
•Pins for the optional JTAG boundary scan function are provided
•High density packaging in plastic Quad Flatpack