Key Parameters:
Input Voltage: 4.75V-5.25V DC (5V System Compatible)
Communication Rate: Up to 1 Mbps (ISO 11898-2 Standard)
Quiescent Current: ≤70 mA (Active Mode), ≤10 µA (Sleep Mode)
Node Capacity: Supports ≥110 Nodes (Large Network Support)
ESD Protection: ±8 kV (Bus Pins, per IEC 61000-4-2)
Operating Temperature: -40°C to +125°C (Industrial/Automotive Grade)
Package: SO8 (Surface-Mount, PCB-Friendly)
Pin Functions (Hardware Interface Standard):
VCC: Power Supply (4.75V-5.25V DC)
GND: Ground
TXD: Transmit Data Input (Connects to Microcontroller CAN_TX)
RXD: Receive Data Output (Connects to Microcontroller CAN_RX)
CANH: CAN High-Level Bus Line (Differential Signal +)
CANL: CAN Low-Level Bus Line (Differential Signal -)
S: Sleep Mode Control (Low-Level Activates Power Saving)
FAQ:
1.
Q: Communication fails or has errors?
→ A: Ensure 120Ω terminal resistors are installed on CANH/CANL ends; verify baud rate ≤1 Mbps.
2.
Q: Module overheats?
→ A: Check for bus shorts (CANH/CANL to GND/VCC); ensure power voltage ≤5.25V.
3.
Q: Sleep mode won't wake?
→ A: Toggle S pin (low→high) or activate bus communication.
4.
Q: Unstable long-distance communication?
→ A: Reduce baud rate (e.g., ≤500 kbps); use shielded twisted-pair cables.
5.
Q: Compatible with 3.3V microcontrollers?
→ A: Yes, TXD/RXD logic levels support 3.3V/5V inputs.
