USB-DAQ-CD provides a CAN 2.0A/B communication interface, supporting transmission rates up to 1Mbps, and integrates 20-channel digital I/O, suitable for vehicle networks, industrial automation, and inter-device communication applications.
Product Features
- USB 2.0 Full Speed bus-powered
- 20-channel 3.3V Digital I/O (5V tolerant)
- Supports I2C/SPI/UART/PWM/Counter
- CAN V2.0B transmission rate up to 1Mb/sec
- Supports Python, C#, and LabVIEW
Pinout
CAN Bus Wiring Instructions
CAN bus wiring is simple; just connect the CAN_H and CAN_L signals in parallel to the CAN network. Pins 35 and 36 of the USB-DAQ-CD provide an internal 120-ohm termination resistor function. If a termination resistor is required, simply short Pins 35 and 36 together.
Product Specifications
Power Requirements
| Parameter | Test Condition/Note | Min | Typical | Max | Unit |
|---|
| Power Voltage | | 4.3 | 5 | 5.5 | V |
| Current Consumption | Standby (-CD only) | | 180 | | mA |
| Parameter | Test Condition/Note | Min | Typical | Max | Unit |
|---|
| Input High Voltage | | 3 | 5 | 5.5 | V |
| Input Low Voltage | | -0.5 | 0 | 0.5 | V |
| Input Impedance | | 50k | | | Ω |
Digital Output (DO/UART/SPI/I2C/PWM)
| Parameter | Test Condition/Note | Min | Typical | Max | Unit |
|---|
| Output High Voltage | | 3.1 | 3.3 | 3.5 | V |
| Output Low Voltage | | -0.5 | 0 | 0.5 | V |
| Output Current (Source) | | | | 10 | mA |
| Output Current (Sink) | | | | -10 | mA |
Communication Interfaces
| Parameter | Test Condition/Note | Min | Typical | Max | Unit |
|---|
| UART Baud Rate | | | | 460.8k | bps |
| SPI-1 Trans. Rate | | | | 36M | Hz |
| SPI-2 Trans. Rate | | | | 18M | Hz |
| I2C Trans. Rate | | | | 400k | Hz |
| CAN Trans. Rate (-C Only) | | | | 1M | bps |
