What it is and what it does
The Siemens 6ES7195-0BE01-0XA0 is the DPC 31 step B ASIC for PROFIBUS DP, a slave-side communication processor with an integrated 80C32 core. It handles bus access on-chip, offloading the host microcontroller from telegram processing — you feed it a 6 kbyte telegram memory and it manages the PROFIBUS DP/PA protocol up to 12 Mbit/s. Built for intelligent slave applications where you want a compact, tested silicon solution rather than a discrete microcontroller stack. Runs on a 3.3 V rail, drawing 50 mA typical, with a max power loss of 0.2 W. Temperature range spans -40 to 85 °C, covering outside cabinets and process-floor installs. It comes in a 100-pin PQFP package with a 4 cm² housing size — small enough for custom board layouts.
Key ratings in plain terms
The headline numbers that matter for your design-in: 12 Mbit/s transmission rate — enough for standard PROFIBUS DP networks with many slaves. Telegram buffer of 6 kbyte handles moderate data exchange per slave. 3.3 V operation keeps the power supply simple. And the -40 to 85 °C range means this ASIC can live in the same enclosure as the field I/O without a heater.