CMOSTEK CMT2380F32 Manual

Ultra Low Power Sub-1GHz Wireless MCU
MCU Features

32 MHz Cortex-M0+ 32-bit CPU platform

32 kB Flash with erasing protection

4 kB RAM with parity to enhance system stability

16 general purpose I/O interfaces available

Flexible power management system
-
0.5 uA @ 3 V(deep sleep mode): the power
consumption when all clocks are off, power-on
reset is active, I/O state is maintained, I/O
interrupt is active and all registers, RAM, and
CPU stay in data storage status
-
0.8 uA @ 3 V (deep sleep mode): the power
consumption when RTCs work
-
150 uA/MHz @3 V @16 MHz: the power
consumption when CPU and peripheral modules
run with program Flash operating internally
-
2 us: the chip's wakeup time from ultra-low power
mode, the fast response enables mode switching
more flexible and efficient

RTC and crystal
-
External high speed crystal: 4 – 32 MHz
-
External low speed crystal: 32.768 kHz
-
Internal high speed clock: 4/8/16/22 and 24 MHz
-
Internal low speed clock: 32.8/38.4 kHz

Timer and counter
-
3 general purpose 16-bit timers/counters
-
A 16-bit timer/counter available in low power
mode
-
3 high performance 16-bit timers/counters
capable for capture/compare and PWM output
-
One 20-bit programmable counter/watchdog
circuit with built-in dedicated ultra-low power
RC-OSC to perform WDT counting

Communication interface
-
UART 0 and UART 1 standard communication
interface
-
One ultra-low power UART(LPUART) supporting
for low speed clock
-
Standard I2C and SPI communication interface
CMT2380F32
SoC

One 12-bit 1 Msps SAR ADC

2 voltage comparators

Low voltage detector (LVD), configurable 16-level
comparison level, support for port voltage and supply
voltage monitoring
RF Features
Frequency range: 127 – 1020 MHz


Modem: FSK, GFSK, MSK, GMSK and OOK
 Data rate：0.5 – 300 kbps

Sensitivity: -121 dBm @ 434 MHz, FSK

Receiving current: 8.5 mA @ 434 MHz, FSK

Transmitting current: 72 mA @ 20 dBm, 434 MHz

Configurable up to 64-byte FIFO
System Features
 Supply voltage：1.8 – 3.6 V
Operating temperature: -40 – 85 ℃


QFN40 5x5 packaging
Application

Smart grid and automatic meter reading

Home security and building automation

Wireless sensor networks and industrial monitoring

ISM band data communication
Description
Employed a 32-bit Cortex-M0+ CPU core and an ultra-low
power RF transceiver, the CMT2380F32 is a FSK, GFSK,
MSK, GMSK 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 CMT2380F32 consumes only 72 mA current
while delivering up to 20 dBm power. As for the receiver, the
Rev0.9 | 1/65
CMT2380F32
www.cmostek.com