Infineon Technologies CY8C4244PVI-442

Overview

CY8C4244PVI-442 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M0 programmable system-on-chip (PSoC® 4200 family) featuring 32 kB flash, 4 kB SRAM, 12-bit 1-Msps SAR ADC, two opamps with comparator mode, and four UDB-based programmable digital blocks. It serves as a mixed-signal embedded controller for capacitive sensing, motor control timing, and low-power human interface systems.

For engineers reviewing the CY8C4244PVI-442 datasheet, CY8C4244PVI-442 pinout, CY8C4244PVI-442 application, or CY8C4244PVI-442 equivalent, key selection criteria include its 44-pin TQFP package, 48-MHz CPU clock, Deep Sleep current of 20 nA, CapSense Sigma-Delta (CSD) support, and dual SCB blocks configurable as I²C/SPI/UART.

Technical Context

The device integrates a tightly coupled Arm Cortex-M0 core with hardware multiplier and NVIC supporting 32 interrupts, alongside a programmable analog subsystem including two rail-to-rail opamps (with ADC input buffering and comparator modes) and a 12-bit SAR ADC with channel sequencer and signal averaging. Its digital fabric comprises four universal digital blocks (UDBs), each with 8 macrocells and data path, enabling custom logic synthesis via Verilog or PSoC Creator schematic entry.

Power management includes five operational modes-Active, Sleep, Deep Sleep, Hibernate, and Stop-with 20-nA Stop Mode current and GPIO wakeup capability. Clocking supports internal IMO (up to 48 MHz), external crystal, and precision ILO (32.768 kHz), with automatic clock switching and SWD debug interface enabled by default but firmware-disablable for security-critical deployments.

Key Specifications

Pinout & Package

Package: 44-pin TQFP (PVI), 10 mm × 10 mm, 0.8 mm pitch, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.

Compared with CY8C4244PVI-442, CY8C4245FNI-483 trades CapSense integration for smaller footprint and extra GPIOs, while STM32L432KC offers higher CPU performance and memory but sacrifices on-the-fly analog/digital reconfiguration - making CY8C4244PVI-442 optimal for designs requiring hardware-level tuning of mixed-signal behavior without component count increase.

Availability

CY8C4244PVI-442 is available at Aetrix Electronics and suitable for capacitive touch interfaces, motor control timing systems, low-power sensor hubs, and industrial HMI controllers requiring stable component supply across extended temperature ranges (–40 °C to +105 °C).

Supply support for CY8C4244PVI-442 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, delivering power systems, sensors, microcontrollers, and security solutions for automotive, industrial, and IoT applications.

CY8C4244PVI-442 belongs to the PSoC® 4200 family - designed specifically for embedded systems requiring field-programmable analog and digital logic alongside Arm Cortex-M0 execution, targeting human interface, motor control, and sensor edge processing.

FAQ

What development tools are required to program and debug CY8C4244PVI-442?

PSoC Creator IDE (free Windows-based tool) is required for schematic-based design, component configuration, and firmware generation. Programming and debugging use the standard Arm Serial Wire Debug (SWD) interface with MiniProg3 or compatible debug probes. No JTAG adapter is needed - SWD operates over two pins (SWDIO and SWCLK) with full breakpoint/watchpoint support.

Does CY8C4244PVI-442 support true EEPROM emulation?

Yes - the 32 kB flash includes row-level protection and system-call APIs to emulate EEPROM functionality, including byte-write and wear-leveling. Cypress-provided "Emulated EEPROM" component in PSoC Creator handles address mapping, erase management, and error correction automatically, enabling nonvolatile storage of calibration data or user settings without external memory.

Can all GPIO pins be used simultaneously for CapSense and LCD drive?

No - while all 36 GPIOs support either CapSense or LCD segment/common functions individually, simultaneous use on the same pin is not supported. Pins assigned to LCD must be configured in LCD drive mode, disabling CapSense on those pins. However, unused GPIOs in other ports can concurrently run CapSense, enabling hybrid UIs with touch buttons and segmented display on separate pin groups.

What is the maximum operating frequency of the internal IMO oscillator?

The internal main oscillator (IMO) is factory-trimmed to 48 MHz ±2% across voltage and temperature (–40 °C to +105 °C). It can be dynamically trimmed in firmware using the ILO as reference, achieving ±0.2% accuracy for time-critical applications like UART baud generation or PWM period stability without external crystal.