Infineon Technologies CY8C4244PVQ-432

Overview

CY8C4244PVQ-432 from Infineon Technologies (formerly Cypress Semiconductor) 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 capacitive sensing (CapSense® CSD) with SmartSense™ auto-tuning. It operates from 1.71 V to 5.5 V across –40 °C to +105 °C and supports up to 36 GPIOs in a 48-pin TQFP package for industrial HMI and sensor interface applications.

For engineers reviewing the CY8C4244PVQ-432 datasheet, CY8C4244PVQ-432 pinout, CY8C4244PVQ-432 application, or CY8C4244PVQ-432 equivalent, key selection criteria include its integrated CapSense® sigma-delta engine, dual SCB blocks configurable as I²C/SPI/UART, four TCPWM modules with kill-input triggering, UDB-based programmable digital logic, and 20-nA Stop mode with GPIO wakeup capability.

Technical Context

The CY8C4244PVQ-432 implements a tightly coupled AHB-Lite bus architecture with a 48-MHz Cortex-M0 CPU, single-cycle hardware multiplier, NVIC with 32 interrupt inputs, and Wakeup Interrupt Controller (WIC) for Deep Sleep wake-up. Its analog subsystem integrates a SAR ADC with channel sequencer and signal averaging, two IDACs, and two low-power comparators active in Deep Sleep.

Digital flexibility is delivered via four Universal Digital Blocks (UDBs), each containing eight macrocells and a data path, enabling user-defined state machines or Verilog-based logic. Two Serial Communication Blocks (SCBs) support runtime reconfiguration between I²C, SPI, and UART protocols, while four TCPWM blocks provide center-aligned, edge-aligned, and pseudo-random PWM generation with comparator-triggered kill signals.

Key Specifications

Pinout & Package

Package: 48-pin TQFP (PVQ), 7 mm × 7 mm, 0.5 mm pitch, RoHS-compliant, lead-free, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C4245FNI-483, the CY8C4244PVQ-432 offers crystal oscillator support and TQFP packaging for easier prototyping and tighter timing control; versus STM32L432KC, it delivers integrated CapSense® and UDB-based logic-reducing component count and development time for mixed-signal HMI and sensor applications.

Availability

CY8C4244PVQ-432 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control interfaces, and programmable power sequencers requiring stable component supply, extended temperature operation (–40 °C to +105 °C), and long-term lifecycle support.

Supply support for CY8C4244PVQ-432 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 AG is a German semiconductor manufacturer specializing in power management, automotive, industrial, and security solutions, with global R&D and manufacturing infrastructure.

The CY8C4244PVQ-432 belongs to the PSoC® 4200 product line, designed specifically for embedded systems requiring integrated analog signal conditioning, capacitive touch, programmable logic, and ultra-low-power operation in harsh environments.

FAQ

What is the maximum operating frequency of the CY8C4244PVQ-432?

The CY8C4244PVQ-432 features an Arm Cortex-M0 CPU with a maximum clock frequency of 48 MHz, supported by the Internal Main Oscillator (IMO), external crystal (1–33 MHz), or PLL-derived clocks. The flash accelerator enables zero-wait-state execution at 24 MHz and one-wait-state operation at 48 MHz, ensuring deterministic real-time performance.

Does CY8C4244PVQ-432 support capacitive touch sensing without external components?

Yes - it integrates a dedicated CapSense® Sigma-Delta (CSD) engine with hardware-accelerated measurement, >5:1 signal-to-noise ratio, and SmartSense™ automatic calibration. This enables robust self-capacitive or mutual-capacitive touch sensing directly on any GPIO pin, eliminating external RC networks or tuning resistors.

Can the programmable digital blocks (UDBs) implement custom communication protocols?

Yes - each of the four Universal Digital Blocks contains macrocells and a data path capable of implementing state machines, counters, shift registers, or protocol engines in hardware. Examples include custom I²C masters, SPI slaves with nonstandard framing, or UART variants with parity and stop-bit customization - all executed independently of the CPU.

What debug interfaces are available, and how is security enforced?

The device uses a 2-wire Serial Wire Debug (SWD) interface compatible with industry-standard tools. Debug is enabled by default but can be disabled in firmware; re-enabling requires full flash erase. Flash protection includes Open (default), Protected (debug disabled), and Kill (irreversible, no external access), plus row-level read/write locking to prevent unauthorized access or modification.