The **CC1110-RTY1** is a sub-1 GHz system-on-chip (SoC) designed by Texas Instruments. It combines a high-performance radio transceiver with an industry-standard enhanced 8051 microcontroller unit (MCU). --- ## 1. Key Internal Components The CC1110-RTY1 integrates several electronic subsystems into a single 6x6 mm QFN36 package: ### A. Radio Transceiver (Sub-1 GHz) * **Frequency Range:** 300-348 MHz, 391-464 MHz, and 782-928 MHz. * **Modulation:** Supports 2-FSK, GFSK, MSK, and OOK/ASK. * **Data Rate:** Programmable from 1.2 to 500 kBaud. * **Features:** Digital RSSI support, hardware packet handling, and preamble/sync word detection. ### B. Microcontroller Unit (MCU) * **Core:** Enhanced 8051 CPU core. * **Memory:** * **Flash:** 8 KB, 16 KB, or 32 KB (The RTY1 specifically denotes a version with specific memory/packaging). * **RAM:** 1 KB, 2 KB, or 4 KB SRAM. * **Performance:** Single-cycle instruction execution for high efficiency. ### C. Peripherals & Connectivity * **ADC:** 12-bit ADC with up to 8 channels. * **Timers:** One 16-bit timer, two 8-bit timers, and a real-time clock (RTC). * **Serial Communication:** Two USARTs (supporting SPI or UART) and an I2S interface. * **GPIO:** 21 general-purpose I/O pins. * **AES Engine:** Integrated hardware AES-128 security coprocessor. --- ## 2. Technical Specifications | Parameter | Value | | :--- | :--- | | **Supply Voltage** | 2.0V to 3.6V | | **Current Consumption (RX)** | ~19.6 mA at 2.4 kBaud | | **Current Consumption (TX)** | ~30 mA at +10 dBm | | **Sleep Mode Current** | 0.3 µA (lowest power state) | | **Package Type** | QFN-36 (6mm x 6mm) | | **Operating Temp** | -40°C to +85°C | --- ## 3. External Required Components To make the CC1110-RTY1 functional in a circuit, the following passive components are typically required: 1. **Crystals:** * A **26 MHz crystal** is required for the radio clock. * An optional **32.768 kHz crystal** is used for low-power sleep timing. 2. **RF Matching Circuit:** An inductor-capacitor (LC) balun network is necessary to match the differential RF output pins to a 50Ω antenna. 3. **Decoupling Capacitors:** Small capacitors (typically 100nF and 10pF) placed near the power pins to filter noise. --- ## 4. Typical Applications * **Low-Power Wireless Systems:** ISM band telemetry. * **Home Automation:** Lighting, locks, and temperature sensors. * **Wireless Alarm Systems:** Security sensors and smoke detectors. * **Industrial Monitoring:** Wireless sensor networks (WSN).