VIBRATION RM521

RM521 is a learning-type ASK receiver module operating at 315MHz/433.92MHz. The module integrates decoding, squelch, data error correction, learning, and code pairing functions, and supports 4-channel interlocked, momentary, latched, and multiple combination output modes. The module is compatible with various fixed-code encoder ICs, such as EV1527, PT2262, PT2260, PT2240, and SC2260, and supports a code width range of 100us~2000us. The built-in high-capacity EEPROM supports learning of up to 80 remote controls.

The module features high sensitivity (−112dBm), low power consumption (<5.5mA), and high dynamic range (>80dB), along with strong anti-interference performance. The RM521 operates at a supply voltage range of 2.5~5.5V, with a normal operating current of 5.5–6.0mA and a maximum receive sensitivity of −112dBm. The module dimensions are 27.3mm × 12.3mm.

• Operating frequency: 315/433.92 MHz
• Data rate: 0.5 - 10 kbps
• Sensitivity: -112 dBm (3 kbps), 0.1% BER
• Compatible with EV1527, PT2262, PT2260, PT2240, SC2260
• Code width range: 100us~2000us
• No oscillator resistor required
• 4-channel output support
• Supports learning up to 80 remote controls
• No jumpers or manual encoding required
• Supply voltage: 2.5 – 5.5 V
• Low power consumption: 5.5~6.0mA
• Supports interlock, momentary, self-lock, and multiple combination output modes

• Remote access control systems
• Remote-controlled fans
• Lighting switches
• Toy remote controls
• Security systems
• Smart home appliances