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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 used in various car audio systems, home audio systems, small appliances, Bluetooth speakers, automotive electronics, digital motors, sports equipment, motor control, healthcare, instrumentation, security, power control, industrial control, and doorbell products.

Product Applications

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

Package type: SOP16/SOP20/TSSOP20/QFN20/SOP28/SSOP28

Specifications

Actual product photos

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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