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                                                                                                  1. Home
                                                                                                  2. Semiconductors - ICs
                                                                                                  3. Microcontrollers
                                                                                                  4. 8-bit Microcontrollers
                                                                                                  Print Page

                                                                                                  CY8C3866AXI-040

                                                                                                  8 Bit MCU, PSOC3, PSOC 3 Family CY8C38xx Series Microcontrollers, 8051, 67 MHz, 64 KB, 100 Pins

                                                                                                  INFINEON
                                                                                                  INFINEON CY8C3866AXI-040
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  ManufacturerINFINEON
                                                                                                  Manufacturer Part NoCY8C3866AXI-040
                                                                                                  Order Code2063373
                                                                                                  Product RangePSOC 3 Family CY8C38xx Series Microcontrollers
                                                                                                  Also Known AsSP005642859, CY8C3866AXI-040
                                                                                                  Your Part Number
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  548 In Stock

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                                                                                                  548 Delivery in 3-4 Business Days(UK stock)
                                                                                                  QuantityPrice
                                                                                                  1+HK$189.640
                                                                                                  10+HK$162.440
                                                                                                  25+HK$155.830
                                                                                                  50+HK$150.120
                                                                                                  Price for:Each
                                                                                                  Minimum: 1
                                                                                                  Multiple: 1
                                                                                                  HK$189.64
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                                                                                                  Added to your Order Confirmation, Invoice, and Dispatch note for this order only.

                                                                                                  Product Information

                                                                                                  INFINEON
                                                                                                  ManufacturerINFINEON
                                                                                                  Manufacturer Part NoCY8C3866AXI-040
                                                                                                  Order Code2063373
                                                                                                  Product RangePSOC 3 Family CY8C38xx Series Microcontrollers
                                                                                                  Also Known AsSP005642859, CY8C3866AXI-040
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Product RangePSOC 3 Family CY8C38xx Series Microcontrollers
                                                                                                  Device Core8051
                                                                                                  Operating Frequency Max67MHz
                                                                                                  Program Memory Size64KB
                                                                                                  No. of Pins100Pins
                                                                                                  IC Case / PackageTQFP
                                                                                                  No. of I/O's62I/O's
                                                                                                  InterfacesCAN, I2C, USB
                                                                                                  RAM Memory Size8KB
                                                                                                  ADC Channels-
                                                                                                  ADC Resolution20Bit
                                                                                                  Supply Voltage Min1.7V
                                                                                                  Supply Voltage Max5.5V
                                                                                                  Operating Temperature Min-40°C
                                                                                                  Operating Temperature Max85°C
                                                                                                  IC MountingSurface Mount
                                                                                                  MCU FamilyPSoC 3
                                                                                                  MCU SeriesCY8C38xx
                                                                                                  Qualification-
                                                                                                  MSLMSL 3 - 168 hours
                                                                                                  SVHCNo SVHC (25-Jun-2025)

                                                                                                  Product Overview

                                                                                                  The CY8C3866AXI-040 is a 8-bit PSoC®3 true System-on-Chip Microcontroller Unit with memory, analog and digital peripheral functions. The CY8C38 family offers a modern method of signal acquisition, signal processing and control with high accuracy, high bandwidth and high flexibility. Analog capability spans the range from thermocouples to ultrasonic signals. The CY8C38 family can handle dozens of data acquisition channels and analog inputs on every general-purpose input/output GPIO pin. The CY8C38 family is also a high-performance configurable digital system with some part numbers including interfaces such as USB, multi master inter-integrated circuit (I²C) and controller area network (CAN). In addition to communication interfaces, the CY8C38 family has an easy to configure logic array, flexible routing to all I/O pins and a high-performance single cycle 8051 microprocessor core.

                                                                                                  • Single cycle 8051 CPU
                                                                                                  • Multiply and divide instructions
                                                                                                  • 24-channel Direct memory access (DMA) with multilayer AHB bus access
                                                                                                  • Any GPIO to any digital or analog peripheral routability
                                                                                                  • LCD direct drive from any GPIO, up to 46 x 16 segments
                                                                                                  • CapSense® support from any GPIO
                                                                                                  • 1.2 to 5.5V I/O Interface voltages, up to four domains
                                                                                                  • Maskable, independent IRQ on any pin or port
                                                                                                  • Schmitt-trigger transistor-transistor logic (TTL) inputs
                                                                                                  • All GPIO configurable as open drain high/low, pull-up/pull-down, High Z or strong output
                                                                                                  • Configurable GPIO pin state at power-on reset (POR)
                                                                                                  • 25mA Sink on SIO
                                                                                                  • Full CAN 2.0b 16 Receiver, 8 Transmitter buffers
                                                                                                  • USB 2.0 certified Full-Speed (FS) 12Mbps peripheral interface using internal oscillator
                                                                                                  • 67MHz, 24-bit Fixed point digital filter block (DFB) to implement FIR and IIR filters
                                                                                                  • Serial peripheral interface (SPI), universal asynchronous transmitter receiver (UART) and I²C
                                                                                                  • Cyclic redundancy check (CRC)
                                                                                                  • Pseudo random sequence (PRS) generator
                                                                                                  • Local interconnect network (LIN) bus 2.0
                                                                                                  • Quadrature decoder
                                                                                                  • JTAG (4-wire), serial wire debug (SWD) (2-wire) and single wire viewer (SWV) interfaces
                                                                                                  • Eight address and one data breakpoint
                                                                                                  • Bootloader programming supportable through I²C, SPI, UART, USB and other interfaces

                                                                                                  Applications

                                                                                                  Industrial

                                                                                                  Technical Specifications

                                                                                                  Product Range

                                                                                                  PSOC 3 Family CY8C38xx Series Microcontrollers

                                                                                                  Operating Frequency Max

                                                                                                  67MHz

                                                                                                  No. of Pins

                                                                                                  100Pins

                                                                                                  No. of I/O's

                                                                                                  62I/O's

                                                                                                  RAM Memory Size

                                                                                                  8KB

                                                                                                  ADC Resolution

                                                                                                  20Bit

                                                                                                  Supply Voltage Max

                                                                                                  5.5V

                                                                                                  Operating Temperature Max

                                                                                                  85°C

                                                                                                  MCU Family

                                                                                                  PSoC 3

                                                                                                  Qualification

                                                                                                  -

                                                                                                  SVHC

                                                                                                  No SVHC (25-Jun-2025)

                                                                                                  Device Core

                                                                                                  8051

                                                                                                  Program Memory Size

                                                                                                  64KB

                                                                                                  IC Case / Package

                                                                                                  TQFP

                                                                                                  Interfaces

                                                                                                  CAN, I2C, USB

                                                                                                  ADC Channels

                                                                                                  -

                                                                                                  Supply Voltage Min

                                                                                                  1.7V

                                                                                                  Operating Temperature Min

                                                                                                  -40°C

                                                                                                  IC Mounting

                                                                                                  Surface Mount

                                                                                                  MCU Series

                                                                                                  CY8C38xx

                                                                                                  MSL

                                                                                                  MSL 3 - 168 hours

                                                                                                  Technical Docs (2)

                                                                                                  CAD CadSoft_EAGLE EN

                                                                                                  Technical Data Sheet EN

                                                                                                  Legislation and Environmental

                                                                                                  Country of Origin:
                                                                                                  Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                  United States
                                                                                                  Country in which last significant manufacturing process was carried out
                                                                                                  Tariff No:85423190
                                                                                                  US ECCN:3A991.a.3
                                                                                                  EU ECCN:NLR
                                                                                                  RoHS Compliant:Yes

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:No SVHC (25-Jun-2025)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

                                                                                                  Weight (kg):.004959
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