High-performance RISC CPU
-8-bit MCU
-Built-in 2K×16-bit program memory MTP
-104-byte data memory (SRAM)
-E2PROM with 128-byte data storage
-Supports online simulation (ICD) operating voltage
-2.35 V~5.5 V @Fcpu=4 MHz, -40~85 ℃
Operating voltage
—2.35V~5.5V @Fcpu=4MHz,-40~85℃
Electronic cigarette special features
-Short circuit protection comparator, comparison voltage supports VDD or PT3.4 minus 80/200/320/480 mv configurations
-Constant current source output, PT3.2 port output constant current source 50 mA
Oscillator
-Built-in 32/16/8/4/2 MHz oscillator, accuracy ±1%@5 V, 25 ℃
Features of dedicated microcontrollers
-Power-On Reset (POR)
-Power-on reset and hardware reset delay timer (98 ms)
-Built-in low voltage reset (LVR)
-Timer 0: 8-bit programmable prescaler timer counter
-Timer/Counter 2: 12-bit programmable prescaler timer/counter
-Timer/Counter 3: 12-bit programmable prescaler timer/counter
-Extended watchdog timer (32K WDT), programmable time range
-Window watchdog (CPU clock), 7-bit down counter, cannot be turned off when enabled.
Peripheral Features
-14 bi-directional I/O ports
-2 buzzer outputs, 2 PWM outputs
-Timer 3 supports 2 pairs of complementary PWM outputs, supports large drive output
-5 internal interrupts, 2 external interrupts
-11 inputs with wake-up function
-7+3 12-bit ADC: internal 1.4 V, 2.0 V, 3.0 V, 4.0 V, VDD, external input three reference voltage options
-Provides a 1.4 V, 2 V, 3 V, 4 V reference voltage output with ±1.5% accuracy
-4 open-drain outputs -PT5.0, PT5.1, PT1.1, PT1.3
-PT5.0 and PT5.1 output current can be configured as IOL=53 mA@5 V, IOH=25 mA@5 V
-PT1.0, PT3.5 output current configurable as IOL = 30 mA@5 V, IOH = 20 mA@5 V
-Input logic level threshold can be configured
-5*8 LCD driver, ¼ duty, ½ bias
Low power consumption characteristics
—-Normal mode 2.5 mA@16 MHz, 5 V
—-Current in sleep mode is less than 1 μA