Description

Employed an 8-bit CPU core and an ultra-low power RF transceiver, the CMT2380F17 is a (G)FSK, (G)MSK, and OOK wireless MCU with high performance and ultra-low power applying to 127 to 1020 MHz band wireless applications. Operating with 1.8 to 3.6 V supply voltage, the CMT2380F17 consumes only 72 mA transmission current and 8.5 mA (exclusive of MCU consuming) receiving current while delivering up to 20 dBm power and reaching -121 dBm sensitivity.

The device employs a wide range of peripherals like support of standard UART, I2C and SPI interfaces, up to 25 general-purpose I/Os, support of internal high-speed, low-speed, low-power RC oscillators and 32.768 kHz external crystal oscillators, flexible data handling and packet handler, up to 64-byte Tx/Rx FIFO, feature-enriched RF GPIO, multiple low-power modes and fast-start mechanisms, high-precision RSSI, manual fast frequency hopping, multi-channel input 12-bit high-speed ADC, etc. Leading the industry in the aspect of the smallest package size, the CMT2380F17 is ideal for IoT applications with critical requests in size constraints and power-efficiency.

MCU Features

 1-T 80C51 CPU platform

 16kB program area Flash with password access protects. Default space configuration:

- AP program space (13.5 kB, 0000h ~ 35FFh)

- IAP data space (1.0 kB, 3600h ~ 39FFh)

- ISP boot code space (1.5 kB, 3A00h ~ 3FFFh)

 1 kB data memory

- 256-byte high-speed buffer

- 768-byte of extended RAM (XRAM)

- Extended RAM (XRAM) supporting page access

 On-chip debug interface (OCD)

 Multiple power control modes: power-down mode, idle mode, slow-frequency mode, sub-frequency mode, RTC mode, watch mode, and monitor mode

- All interrupts supporting to wake up the CPU from IDLE mode

- 10 interrupt sources supporting to wake up the CPU in power-down mode

- Slow-frequency mode and sub-frequency mode supporting low-speed MCU operation

- RTC mode supporting real-time clock (RTC) to wake up the CPU in power-down mode

- Watch mode supporting watchdog (WDT) to wake up the CPU in power-down mode

- Monitor mode supporting BOD1 to wake up the CPU in power-down mode

 Operating frequency range: up to 25 MHz

- External crystal oscillator mode, 0–12 MHz at 2.0–3.6 V and 0–25 MHz at 2.4–3.6 V

- CPU operating frequency can reach 12 MHz at 1.8-3.6 V and 25 MHz at 2.2-3.6 V

- When on-chip clock frequency multiplier (CKM) is at 2.7–3.6 V, the CPU operating frequency

can reach 36 MHz.

 Double data pointer

 Interrupt control

- 16 interrupt sources, 4 priority levels

- 3 external interrupts nINT0/1/2, with filtering

- All external interrupts supporting high/low or rising/falling edge triggering

 8-channel 12-bit single-ended ADC with a sampling rate greater than 500 ksps

 1 master/slave SPI serial interface, the rate reaching 12 MHz

 2 master/slave two-wire serial interfaces: TWI0/I2C0 and STWI (SI2C)

 1-channel DMA engine

- P2P, M2P, P2M

- Memory target: XRAM

- Peripheral targets: UART0, UART1, SPI, TWI0/I2C0, ADC12 and CRC16

- Timer 5 and Timer 6 are applied by DMA; they are independent timers when DMA is not

enabled.

 Totally 9/11 timers/counters on-chip

- RTC timer and WDT timer

- Timer 0, 1, 2, 3

- PCA0, programmable counter array 0

- S0BRG and S1BRG

- When timer 2/3 is used in separated mode, there are a total of 11 timers

 8 keyboard interrupts

 1 enhanced UART0 and 1 normal UART1

RF Features

 Operating frequency: 127-1020 MHz

 Modulation and demodulation methods: (G)FSK, (G)MSK, OOK

 Data rate: 0.5-300 kbps

 Sensitivity: -121 dBm @ 434 MHz, FSK

 Receive current: 8.5 mA @ 434 MHz, FSK

 Transmitting current: 72 mA @ 20 dBm, 434 MHz

 Configurable FIFO up to 64-Byte

System Features

 Operating voltage: 1.8 – 3.6 V

 Operating temperature: -40 – 85 ℃

 QFN40 5x5 packaging

Application

 Automatic meter reading

 Home security and building automation

 Wireless sensor networks and industrial monitoring

 ISM band data communication