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Versatile 67MHz 8-Bit MCU: CY8C3866PVI-021

Featured Product from Shenzhen Shengyu Electronics Technology Limited

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  • High-Performance Operation: Delivers DC to 67MHz operation with power modes catering to varying needs—1.2mA at 6MHz in active mode, 1µA sleep mode, and 200nA hibernate mode with RAM retention.

  • Rich Peripheral Set: Features an 8-bit 8051 CPU, 24-channel DMA controller, and a 24-bit 64-tap DFB for powerful digital signal processing. Boasts up to 64KB program flash, 8KB RAM, 2KB EEPROM, and additional flash for ECC.

  • Versatile Connectivity: Equipped with four 16-bit TCPWM blocks, I2C, USB 2.0, Full CAN 2.0b, and up to 24 programmable UDBs supporting timers, interfaces (I2C, UART, SPI, I2S, LIN 2.0), CRC, PRS generators, decoders, and more.

  • Programmable Clocking: Offers a wide range of clocking options, including internal/external oscillators, PLL clock generation up to 67MHz, and low-power oscillators for efficient energy management.

  • ? Advanced Analog Integration: Boasts configurable delta-sigma ADC, up to four DACs, comparators, opamps, and programmable analog blocks for creating custom amplifiers and circuits. CapSense support for up to 62 sensors.

  • Flexible I/O System: Features 29 to 72 I/O pins, including performance I/O (SIO) pins with 25mA current sink, programmable thresholds, and hot swap capability. Supports LCD direct drive, CapSense, and diverse interface voltages.

  • Development Support: Facilitates easy development with JTAG, SWD, and SWV interfaces. Supports bootloader programming through I2C, SPI, UART, USB, and more. Compatible with popular package options and includes free PSoC Creator™ tool and Keil 8051 compiler.

  • Design Freedom: Over 100 PSoC Components™ enable seamless integration of multiple ICs and system interfaces. Drag-and-drop simplicity in PSoC Creator for efficient system design.


  • Ideal for applications demanding high-performance computing, versatile connectivity, and advanced analog integration, such as industrial automation, IoT devices, motor control, and smart sensors.