SN74FB2033H

*Compatible With IEEE 1194.1-1991 (BTL) Standard
*TTL A Port, Backplane Transceiver Logic (BTL) B Port
*Open-Collector B-Port Outputs Sink100 mA
*BIAS V_CC  Pin Minimizes Signal Distortion
  During Live Insertion/Withdrawal
*B-Port Biasing Network Preconditions the
  Connector and PC Trace to the BTL
  High-Level Voltage
*TTL-Input Structures Incorporate Active
  Clamping Networks to Aid in Line Termination
*Available in Plastic Quad Flatpack

    The SN74FB2033H is an 8-bit transceiver featuring a split input (AI) and output (AO) bus on the TTL-level A port. port operates at backplane transceiver logic (BTL) signal levels. The common I/O, open-collector B SN74FB2033H is specifically designed to be compatible with IEEE 1194.1-1991 (BTL) standard.

    The logic element for data flow in each direction is configured by two mode inputs (IMODE1 and IMODE0 for B-to-A, OMODE1 and OMODE0 for A-to-B) as a buffer, a D-type flip-flop, or a D-type latch. When configured in the buffer mode, the inverted input data appears at the output port. In the flip-flop mode, data is stored on the rising edge of the appropriate clock input (CLKAB/LEAB or CLKBA/LEBA). In the latch mode, the clock pins serve as active-high transparent latch enables.