FB2040A

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. 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 swing produces less noise and reduces power consumption Built-in precision band-gap reference provides accurate receiver thresholds and improved noise immunity Each BTL driver has a dedicated Bus GND for a signal return Glitch-free power up/power down operation Low ICC current Tight output skew Supports live insertion Pins for the optional JTAG boundary scan function are provided High density packaging in plastic Quad Flat Pack QUICK REFERENCE DATA SYMBOL tPLH tPHL tPLH tPHL COB IOL Propagation delay AIn to Bn Propagation delay Bn to AOn Output capacitance (B0 – B7 only) Output current (B0 – B7 only) Standby AIn to Bn (outputs Low or High) ICC Supply current Bn to AOn (outputs Low) Bn to AOn (outputs High) PARAMETER TYPICAL 4.4 3.1 3.4 3.2 4 100 4 4 22 12 mA UNIT ns ns pF mA ORDERING INFORMATION PACKAGES 52-pin Plastic Quad Flat Pack (QFP) COMMERCIAL RANGE VCC = 5V±10%; Tamb = 0°C to +70°C FB2040BB DRAWING NUMBER SOT379-1 ABSOLUTE MAXIMUM RAT...