core

CPU: 1T8051, which is 10 times faster than the traditional 8051.

Compatible with 8051 instruction set and dual DPTR working mode.

storage

Flash: 8K bytes, supporting repeated erasing.

Flash can be divided into program space and data space. The data space can be used to store data that needs to be saved when power is off, and EEPROM can be omitted.

RAM:256 bytes of internal RAM and 512 bytes of external ram.

operating voltage

Working voltage: 1.8-5.5V

Clock system

Built-in low-speed RC oscillator: 131KHz

Built-in high-speed RC oscillator: 16MHz with accuracy of 1% (3.3 V @ 25℃)

TMC function

The clock source is a built-in low-speed RC oscillator, and the minimum interruption time is 512 clock cycles of the low-speed RC oscillator.

The configurable interruption time is 1-256 minimum unit times.

Interrupt system

7 valid interrupt sources

Two-level interrupt priority supports interrupt nesting.

Five external interrupt sources and three external interrupts can be configured with any signal pin as the interrupt input pin.

timer

Three 16-bit universal timers: Timer 0, Timer 1 and Timer 2.

General purpose input/output port (GPIO)

Up to 8 GPIO ports are supported.

Support push-pull, open drain, strong pull-up, weak pull-up, strong pull-down, weak pull-down and high resistance modes.

In push-pull mode, different driving intensities and flipping speeds can be set.

Touch Key

Built-in touch sensing controller

Greater support for 7 touch channels

Touch can set internal charging and internal reference, which can effectively suppress low-frequency interference of power supply.

Built-in waterproof compensation mechanism

High anti-interference, in line with EMC(CS) standards.

Support touch power saving mode

PWM

Supports 5-channel PWM, and the cycle and duty ratio can be configured arbitrarily within 16-bit range.

Support the function of directly outputting internal clock.

Support PWM interrupt

It supports 2 cascaded LED drives, the scanning frequency is more than 400Hz/S, and the data transmission speed is 800Kbps.

Support direct control of WS2812 or similar driver chips, which meets the requirements of monochrome or colorful LED strip products.

Low voltage detection (LVD)

Configurable voltage detection range is 1.7-4.8V

Low voltage reset or interrupt can be set.

Optionally detect VDD voltage or pin input voltage.

DAC function

Supports 1 channel of 5-bit DAC output, and each channel can be configured with 32 output voltages.

Reset mode

The chip supports a variety of reset sources: hard reset, soft reset, watchdog reset, low voltage detection reset and power-on/power-off reset.

watchdog

27-bit watchdog timer, 16-bit precision adjustment, configurable watchdog reset or interrupt.

Universal serial interface (UART)

Support 1 UART interface

Support 1 byte receive cache

I2C interface

Built-in 1 I2C interface supports master-slave mode and standard/fast/high-speed mode.

I2C can be set with digital filtering to enhance its anti-interference performance.

Program download and simulation

Support ISP and IAP

Support online simulation function

low power consumption

STOP mode, current < 6uA

IDLE mode, current < 13uA

Low speed operation mode, current < 20uA.

Package type: MSOP10

For detailed information, please call 13927458257 (same as WeChat).