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Integrated Circuits (ICs)

CY8C3666AXI-036T

MCU 8-Bit PSoC 8051 CISC 64KB Flash 3.3V/5V 100-Pin TQFP T/R

The Infineon MCU 8-Bit PSoC 8051 CISC is a versatile microcontroller designed for a wide range of embedded applications. Featuring a robust 8051 core architecture, this microcontroller integrates 64KB of FLASH memory and supports a variety of interfaces including I2C, SPI, and USB. With a compact 100-pin TQFP package, it operates at supply voltages from 1.7V to 5.5V and is capable of functioning in extreme temperatures from -40°C to 85°C. This MCU is ideal for applications requiring efficient pr

BrandInfineon
PackageTQFP
Device TypeMicrocontrollers

Full Specifications

Number of Pins100
Core Architecture8051
Data Bus Width8b
Number of I/Os62
InterfaceEBI/EMI, I2C, LIN, SPI, UART, USART, USB
Memory TypeFLASH
Memory Size64kB
Min Supply Voltage1.7V
Max Supply Voltage5.5V
PeripheralsCapSense, DMA, LCD, POR, PWM, WDT
Lifecycle StatusProduction
Frequency67MHz
Max Operating Temperature85°C
Min Operating Temperature-40°C

About This Product

The Infineon MCU 8-Bit PSoC 8051 CISC is a versatile microcontroller designed for a wide range of embedded applications. Featuring a robust 8051 core architecture, this microcontroller integrates 64KB of FLASH memory and supports a variety of interfaces including I2C, SPI, and USB. With a compact 100-pin TQFP package, it operates at supply voltages from 1.7V to 5.5V and is capable of functioning in extreme temperatures from -40°C to 85°C. This MCU is ideal for applications requiring efficient processing, extensive I/O capabilities, and advanced peripheral support.

What is this product used for?

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

Key Features

  • Case/Package: TQFP
  • Number of Pins: 100
  • Interface: EBI/EMI, I2C, LIN, SPI, UART, USART, USB
  • Lifecycle Status: Production
  • Core Architecture: 8051
  • Data Bus Width: 8b

Typical Use Cases

Embedded Processors and Controllers Microcontrollers TQFP Microcontrollers

Sourcing Support for This MPN

Contact JaronSemi to confirm package, date code, and traceability requirements.

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  • Approved-alternate and cross-reference review when the requested line is constrained
  • Availability, lifecycle, and supply-risk discussion for procurement planning
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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 3.3V/5V 100-Pin TQFP T/R

CY8C3666AXI-036T

Infineon

The Infineon MCU 8-Bit PSoC 8051 CISC is a versatile microcontroller designed for a wide range of embedded applications. Featuring a robust 8051 core architecture, this microcontroller integrates 64KB of FLASH memory and supports a variety of interfaces including I2C, SPI, and USB. With a compact 100-pin TQFP package, it operates at supply voltages from 1.7V to 5.5V and is capable of functioning in extreme temperatures from -40°C to 85°C. This MCU is ideal for applications requiring efficient pr

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  • Sample to production quantities
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