Description
High-Performance RISC CPU
| Feature | Details |
|---|---|
| Type | 8-bit single-chip MCU |
| Memory | Built-in 8K×16 one-time programmable memory (MTP ROM) and 128Bytes EEPROM; 896-byte data random-access memory (SRAM) |
| Instruction Set | Only 46 single-byte instructions |
| Stack | 8-level storage stack |
Analog Characteristics
| Feature | Details |
|---|---|
| ADC Type | 1-channel fully differential 24-bit Sigma-Delta ADC, with 1/64/128 gain selection |
| Additional ADC | 6 external channels and 2 internal channels of 10-bit SAR ADC |
| BIM Module | 4-channel AC human body impedance measurement (BIM) module |
| ADC Output Rate | ADC output rate 15.2Hz ~ 3.9KHz |
| Charge Pump | Internal charge pump |
| Regulator | Internal regulator for sensor and modulator |
| Amplifier | Internally integrated programmable gain amplifier |
Characteristics of Dedicated Microcontroller
| Feature | Details |
|---|---|
| Power-On Reset (POR) | Included |
| Reset Delay Timer | Power-on reset delay timer (39ms) |
| Low-Voltage Reset (LVR) | Internal low-voltage reset |
| Timer 0 | 8-bit timer with programmable prescaler |
| Timer/Counter 1/2/3 | 8-bit timer/counter with programmable prescaler |
Peripheral Characteristics
| Feature | Details |
|---|---|
| I/O Ports | 31-bit bidirectional I/O ports, part of PT2.1 – PT2.4, PT3*, PT4* multiplexed as LCD/LED ports |
| Wake-Up Inputs | 13 inputs with wake-up function |
| UART | 2-channel UART, maximum baud rate 115200bps |
| I2C | 1-channel I2C (slave), supports standard mode (100K bit/s) and fast mode (400K bit/s) |
| SPI | 1-channel SPI, maximum communication rate 500KHz |
| Buzzer Output | 1-channel buzzer output, current driving capability 6mA |
| LCD/LED Drive | Supports 4×24, 6×22 LCD drive or 4×14 LED drive |
| Low-Voltage Detection (LVD) | Can be used for power supply voltage comparison and external voltage comparison |
| Built-in Sensor | Built-in temperature sensor |
| RTC Function | With RTC function, can display year, month, day, week, hour, minute, second information |
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