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Integrated Circuits (ICs)

CY8C3866LTI-067

MCU 8-Bit PSoC 8051 CISC 64KB Flash 2.5V/3.3V/5V 48-Pin QFN EP Tray

The Infineon MCU 8-Bit PSoC 8051 CISC is a versatile microcontroller designed for a wide range of embedded applications. With its robust 8051 core architecture and a maximum frequency of 67MHz, this microcontroller delivers efficient performance while supporting a variety of interfaces including I2C, SPI, and USB. Housed in a compact 48-pin QFN package, it features 64KB of FLASH memory and 8KB of RAM, making it an ideal choice for applications requiring reliable processing power and extensive I/

BrandInfineon
PackageQFN
Device TypeMicrocontrollers

Full Specifications

Number of Pins48
Core Architecture8051
Data Bus Width8b
Max Frequency67MHz
Number of I/Os25
InterfaceEBI/EMI, I2C, LIN, SPI, UART, USART, USB
Memory TypeFLASH
Memory Size64kB
Min Supply Voltage1.7V
Max Supply Voltage5.5V
PeripheralsCapSense, DMA, POR, PWM, WDT
Lifecycle StatusProduction
Contact PlatingGold
Frequency67MHz

About This Product

The Infineon MCU 8-Bit PSoC 8051 CISC is a versatile microcontroller designed for a wide range of embedded applications. With its robust 8051 core architecture and a maximum frequency of 67MHz, this microcontroller delivers efficient performance while supporting a variety of interfaces including I2C, SPI, and USB. Housed in a compact 48-pin QFN package, it features 64KB of FLASH memory and 8KB of RAM, making it an ideal choice for applications requiring reliable processing power and extensive I/O capabilities. Operating within a voltage range of 1.7V to 5.5V and capable of withstanding temperatures from -40°C to 85°C, this microcontroller is built for durability and adaptability in diverse environments.

What is this product used for?

Suitable for design, repair, and production programs using Microcontrollers devices.

Typical Use Cases

Embedded Processors and Controllers Microcontrollers QFN Microcontrollers

Sourcing Support for This MPN

  • MPN and package verification against your BOM or approved vendor list
  • Approved-alternate and cross-reference review when the requested line is constrained
  • Availability, lifecycle, and supply-risk discussion for procurement planning
  • Packing, label, date-code, and requested document coordination

RFQ Checklist

Part number Confirm the target MPN or suggest approved alternates
Target Quantity Sample, pilot run, or mass production volume
Project stage Prototype, NPI, or ongoing production
Target price Budget or target price range if available
MCU 8-Bit PSoC 8051 CISC 64KB Flash 2.5V/3.3V/5V 48-Pin QFN EP Tray

CY8C3866LTI-067

Infineon

The Infineon MCU 8-Bit PSoC 8051 CISC is a versatile microcontroller designed for a wide range of embedded applications. With its robust 8051 core architecture and a maximum frequency of 67MHz, this microcontroller delivers efficient performance while supporting a variety of interfaces including I2C, SPI, and USB. Housed in a compact 48-pin QFN package, it features 64KB of FLASH memory and 8KB of RAM, making it an ideal choice for applications requiring reliable processing power and extensive I/

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