CANopen Chip CO4201A

frenzel + berg CO4201 CANopen Single Chip IO Controller with PWM Function

The CO4201 is a low cost, high performance Single Chip solution for CANopen remote I/O modules and especially designed for automotive and industrial applications. The device offers the complex implementation of the CANopen standards DS301 and DS401 in a single chip. It is suitable for simple low cost applications like sensor interfacing as well as for complex I/O systems.

CO4201 provides up to 27 input lines, 8 channels convert analog input signals with a resolution of 12 bit. 18 output lines are provided. 2 output lines may be used as analog voltage output lines with a resolution of 10 bit. 6 output lines support PWM generation.

To support output overload monitoring, a special error interrupt input is provided. All usual baud rates up to 1 MBit are supported.

The CO4201 Chip requires only few external components, just like a crystal, a CAN transceiver and capacitors. To minimize external interface recommendations all output pins have high current drive capability of 4 mA. For interfacing opto isolators no external drivers are required.


  • CPU 32 Bit
  • power supply 3,3V / 5V DC
  • operating temperature -40 .. +105°C
  • package QFP80

inputs digital/analog

  • 27 inputs
  • up to 27 digital inputs
  • up to 8 analog inputs (12 bit)
  • internal noise filtering for all inputs (individual setting)

outputs digital/analog

  • 18 outputs
  • up to 18 digital outputs
  • up to 2 analog outputs (10 bit)
  • up to 6 PWM outputs


  • output watchdog
  • output overload monitoring


  • CAN-Bus V2.0b
  • CAN-baudrates up to 1Mbit
  • nodenumber 1 .. 127
  • CANopen draft standard DS301 V4.2 / DS401 V3.0
  • CANopen diagnosis LEDs (LED outputs)
  • PDOs receive/transmit 8/8
  • SDOs server/client 1/0
  • PDO-event timer
  • PDO-inhibit timer
  • PDO-transmission mode event triggered, synchron,
    asynchron, cyclic, anti cyclic, remote frame
  • variable PDO-identifier
  • dynamic PDO-mapping
  • emergency
  • nodeguarding/lifeguarding/heartbeat
  • minimum boot up
  • EDS-file



ordering information

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different IO modes:

for testing:
evaluation board


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