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Product description

Product model

Design & development

Solution

  • CMS80F261x

    Enhanced 1T 8051 Flash MCU, the fastest to support 48MHz peripheral operation, 24MHz core operation, is widely used in the Internet of things smart home, new energy, medical electronics, small household appliances, motors, industrial and commercial fields.


    Datasheet >

    The CMS80F261x series of MCUs are enhanced 1T 8051 Flash MCUs, which support 48MHz peripheral operation at the fastest, 24MHz core operation, working voltage 2.1V-5.5V, up to 46 GPIOs, built-in 2 analog comparators, 2 operational amplifiers, Provide 6-channel complementary PWM output with dead zone control, up to 23 channels of 12-bit ADC, 4 UART, 1 SPI, 1 I2C. Industrial standard design, can work at -40℃ to 105℃, and provide LQFP32, LQFP44 and LQFP48 packages.


    Features

    > Enhanced 1T 8051

    > Working voltage frequency: 2.1V-5.5V @Fsys=48MHz, Fcpu=24MHz

    > Working temperature: -40℃-105℃

    > Built-in 64KB Flash ROM (support BOOT function area, 0K/1K/2K/ 4K optional), 1KB Data Flash, 256B general RAM, 4KB general XRAM

    > Support 4 different oscillation modes

    > Up to 46 general-purpose GPIOs, all digital functions can be assigned to any GPIO 2 analog comparators, the offset voltage is less than 1mV 2 Operational amplifier, offset voltage less than 1mV

    > up to 23 channels 12-bit ADC, built-in 1.2V reference voltage, reference voltage optional 1.2V/2.0V/2.4V/3.0V/VDD

    > 5 16-bit timers, Timer2 has Capture /Compare function

    > Built-in WDT timer

    > Built-in LSE timer, support sleep wake-up function 4 UART serial ports, baud rate up to 1Mb/s 1 SPI, communication rate up to 6Mb/s 1 I2C, communication rate Up to 400Kb/s

    > 6-channel enhanced PWM, support independent and complementary modes, and programmable dead zone delay, PWM output port can be multi-port mapping built-in low voltage reset function (LVR): 1.8V/2.0V/2.5V /3.5V Built-in low voltage detection function (LVD): 2.0V~4.6V 16 levels optional

    > Buzzer BUZZER

    > 96bit unique ID (UID)

    > Package type: LQFP32, LQFP44 and LQFP48


  • Product model

    Part Number Package Frequency (MHz) Core Temp Voltage Memory Type ROM RAM Data Flash EEPROM GPIO DMA Timer LSE WDT/WWDT RTC UART I²C SPI CAN LIN PWM/EPWM SAR-ADC SAR-ADC-bit SAR-ADC-ch SAR-ADC-speed(Msps) DAC DAC-bit OPA COMP PGA Driver LCD LED Touch Encryption Other Interface
    SAR-ADC-unitSAR-ADC-bitSAR-ADC-chSAR-ADC-speed(Msps)DAC-unitDAC-bit
    CMS80F2618 SOP28 48 8051 -40~105 2.1~5.5 Flash 64KB 256B+4KB 1KB / 26 / 5x16 Y / / 2 1 1 / / 6 1 12 14 / / / / 2 / /

    17 ×4 16 ×5 15 ×6 13 ×8

    15 ×4 14 ×5 13 ×6 11 ×8

    / / /
    CMS80F26181 SOP28 48 8051 -40~105 2.1~5.5 Flash 64KB 256B+4KB 1KB / 26 / 5x16 Y / / 2 1 1 / / 6 1 12 15 / / / / 2 / /

    16 ×6

    14 ×6

    / / /
    CMS80F26182 SOP28 48 8051 -40~105 2.1~5.5 Flash 64KB 256B+4KB 1KB / 26 / 5x16 Y / / 2 1 1 / / 6 1 12 14 / / / / 2 / /

    16 ×4 15 ×5 14 ×6 12 ×8

    14 ×4 13 ×5 12 ×6 10 ×8

    / / /
    CMS80F2619 LQFP32 48 8051 -40~105 2.1~5.5 Flash 64KB 256B+4KB 1KB / 30 / 5x16 Y / / 3 1 1 / / 6 1 12 18 / / / 2 1 / /

    24 ×4 23 ×5 22 ×6

    17 ×4 16 ×5 15 ×6

    / / /
    CMS80F261A LQFP44 48 8051 -40~105 2.1~5.5 Flash 64KB 256B+4KB 1KB / 42 / 5x16 Y / / 4 1 1 / / 6 1 12 23 / / / 1 2 / /

    32 ×4 31 ×5 30 ×6 28 ×8

    28 ×4 27 ×5 26 ×6 24 ×8

    / / /
    CMS80F261B LQFP48 48 8051 -40~105 2.1~5.5 Flash 64KB 256B+4KB 1KB / 46 / 5x16 Y / / 4 1 1 / / 6 1 12 23 / / / 2 2 / /

    36 ×4 35 ×5 34 ×6 32 ×8

    28 ×4 27 ×5 26 ×6 24 ×8

    / / /

  • Design & development

    Documentation
    Name Version Describe Download
    CMS80F261x data sheet V1.06

    CMS80F261x chip feature, performance indicators, packaging information, etc.

    Download >
    CMS80F261x reference manual V1.04

    CMS80F261x modules, chip registers, clocks, storage, etc.

    Download >
    CMS80Fx61x_DemoCode V2.4

    Contains the driver and sample program of the CMS80Fx61x_Demo chip module

    Download >
    Application Notes for CMS 8051 Microcontroller V1.07

    Application Notes for CMS 8051 Microcontroller 

    Download >
    8051 chip ADC model Application Note V1.01

    ADC model Application Note for CMS 8051 chip

    Download >
    8051MCU I2C Application Note V1.0.1

    Cmsemicon 8051MCU I2C Application Note


    Download >
    8051MCU LVD Application Note V1.0.0

    Cmsemicon 8051MCU LVD Application Note


    Download >
    8051MCU LSE Application Note V1.0.0

    Cmsemicon 8051MCU LSE Application Note


    Download >
    CMS80F26181 data sheet V1.01

    CMS80F26181 chip feature, performance indicators, packaging information, etc.

    Download >
    CMS80F26182 data sheet V1.01

    CMS80F26182 chip feature, performance indicators, packaging information, etc.

    Download >

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  • Solution

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