DS3885 Datasheet | National Semiconductor

Description The DS3885 is one in a series of transceivers designed specifically for the implementation of high performance Futurebus a and proprietary bus interfaces The DS3885 Arbitration Transceiver is designed to conform to IEEE 1194 1 (Backplane Transceiver Logic BTL) as specified in the IEEE 896 2 Futurebus a specification The Arbitration Transceiver incorporates the petition logic internally which simplifies the implementation of a Futurebus a application by minimizing the on board logic required The DS3885 driver output configuration is an NPN open collector which allows Wired-OR connection on the bus Each driver output incorporates a Schottky diode in series with its collector to isolate the transistor output capacitance from the bus thus reducing the bus loading in the inactive state The BTL drivers also have high sink current capability to ply with the bus loading requirements defined within IEEE 1194 1 BTL specification Backplane Transceiver Logic (BTL) is a signaling standard that was invented and first introduced by National Semicon(Continued) Features Y Y Y Y Y Y 9-bit inverting BTL transceiver Meets IEEE 1194 1 standard on Backplane Transceiver Logic (BTL) Includes on chip petition logic and parity checking Supports live insertion Glitch free power-up down protection Typically less than 5 p F bus-port capacitance Low bus-port voltage swing (typically 1V) at 80 m A Open collector bus-port output allows Wired-OR connection Exceeds 2 k V ESD testing (Human Body Model) Individual bus-port ground pins minimize ground bounce Controlled rise and fall time to reduce noise coupling to adjacent lines TTL patible driver and control inputs Built in bandgap reference with separate QVCC and QGND pins for precise receiver thresholds Product offered in PLCC and PQFP package styles Connection Diagrams TL F 10721 - 2 TL F 10721 - 13 Order Number DS3885V or DS3885VF See NS Package Number V44A or VF44B TRI-STATE is a registered trademark of...