Product Descriptions

The CA51F3 series chip is an 8-bit microcontroller based on the 1T 8051 core. Typically, it runs 10 times faster than traditional 8051 chips and has superior performance. The built-in 8/16/32K Flash program memory and the ability to program repeatedly bring great convenience to user development. Not only does it retain the basic characteristics of traditional 8051 chips, but it also integrates 12 bit ADC, LCD/LED drivers Touch Key、16Bit PWM、 UART、RTC、 Low voltage detection (LVD) and other functional modules. Supports three power-saving modes: IDLE, STOP, and low-speed operation to adapt to applications with different power consumption requirements. The powerful functions and superior anti-interference performance make it widely applicable to various small appliances, Bluetooth speakers, sports equipment, healthcare, security, power control, and industrial control.

Products Features

Kernel

-CPU: 1T 8051, with a maximum speed 10 times faster than traditional 8051

-Compatible with 8051 instruction set and dual DPTR working mode

-CPU frequency: Supports up to 27MHz

Memory

-ROM:  Flash: 8/16/32K bytes, supports multiple repeated erasures

-Flash can be divided into program space and data space. Data space can be used to store data that needs to be saved in case of power failure, and EEPROM can be omitted

-RAM: 256 bytes internal RAM, 2K bytes external RAM

Working voltage

-Operating voltage: 1.8-5.5V

Interrupt system

-15 valid interrupt sources

-Two levels of interrupt priority, supporting nested interrupts

-10 external interrupt sources, each of which can be configured with any signal pin as an interrupt input pin

Clock system

• External RTC oscillator: 32.768KHz (supported by some models)

• Built in low-speed RC oscillator: 131KHz

• Built in PLL: multiplier of 2-10 times, reference clock of 2-4MHz, built-in RC oscillator

• Built in high-speed RC oscillator: 2-4MHz, accuracy up to 1% (factory initial frequency is 3.6864MHz @ 3.3V/25 ℃)

• Embedded external clock monitoring module, which can effectively monitor the working status of various external clocks and avoid crashes caused by external clock oscillation

RTC function

• Built in RTC module can time, minutes, seconds, weeks, days, and support alarm function

• Supports millisecond and half second interrupts

General purpose input/output port (GPIO)

• Supports up to 26 GPIO ports (different models may vary)

• Support push-pull, open drain, strong pull-up, weak pull-up, strong pull-down, weak pull-down, high impedance mode

• Different driving strengths and flipping speeds can be set in push-pull mode

Specifications

Actual product photos

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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