Infineon Technologies CY8C4244LQQ-443

Overview

CY8C4244LQQ-443 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex™-M0 programmable system-on-chip (PSoC® 4200 family) integrating MCU, reconfigurable analog/digital blocks, 12-bit 1-Msps SAR ADC, two opamps with comparator mode, and two SCBs supporting I²C/SPI/UART. It operates from 1.71 V to 5.5 V and delivers 48 MHz CPU performance with 32 kB flash and 4 kB SRAM. Used in capacitive touch HMI, motor control feedback, and low-power industrial sensor nodes.

For engineers reviewing the CY8C4244LQQ-443 datasheet, CY8C4244LQQ-443 pinout, CY8C4244LQQ-443 application, or CY8C4244LQQ-443 equivalent, key selection criteria include its 44-pin TQFP package, Deep Sleep current of 20 nA, CapSense Sigma-Delta (CSD) SNR >5:1, TCPWM kill-signal triggering for motor safety, and SWD debug interface compatibility with Arm-standard tools.

Technical Context

The device implements a single-layer AHB-Lite interconnect between Cortex-M0 CPU, SRAM, flash with read accelerator, and peripheral subsystems. Its analog subsystem includes a CTBm block with two rail-to-rail opamps configurable as buffers, comparators, or ADC input drivers, plus a dedicated SAR ADC with hardware channel sequencer and signal averaging.

Digital flexibility stems from four Universal Digital Blocks (UDBs), each containing eight macrocells and a datapath, enabling custom logic, state machines, or peripheral extensions. Two SCBs provide runtime-reconfigurable serial interfaces, while four TCPWM blocks support center-aligned PWM, dead-time insertion, and comparator-triggered fault shutdown-critical for motor drive timing integrity.

Key Specifications

Pinout & Package

Package: 44-pin TQFP (LQQ suffix), 10 mm × 10 mm, 0.8 mm pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C4244LQQ-443, CY8C4245LTI-483 offers headroom for firmware growth without architectural change, while STM32F072RBT6 trades configurability for lower unit cost and broader ecosystem support - making it suitable only when design constraints exclude programmable analog/digital reuse.

Availability

CY8C4244LQQ-443 is available at Aetrix Electronics and suitable for motor control feedback systems, capacitive touch HMI panels, and industrial sensor nodes requiring stable component supply across automotive-grade temperature ranges (–40 °C to +105 °C).

Supply support for CY8C4244LQQ-443 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, microcontrollers, sensors, and security solutions for industrial, automotive, and IoT applications.

CY8C4244LQQ-443 belongs to the PSoC® 4200 family - designed specifically for embedded systems demanding integrated analog signal conditioning, capacitive sensing, and reconfigurable digital logic in a single chip to reduce system complexity and time-to-market.

FAQ

Is CY8C4244LQQ-443 pin-compatible with other PSoC 4200 devices?

Yes - CY8C4244LQQ-443 uses the 44-pin TQFP package shared with CY8C4245LQI-483 and CY8C4247LQI-483, enabling direct PCB footprint reuse. Pin functions are consistent across this package variant, though memory size and certain peripheral configurations differ. Always verify GPIO mapping and clock tree settings in PSoC Creator before migration.

Does CY8C4244LQQ-443 support secure boot or flash encryption?

No - CY8C4244LQQ-443 provides flash protection modes (Open/Protected/Kill) and SWD interface disablement, but lacks hardware AES encryption engines or secure boot ROM. Secure firmware updates require external cryptographic co-processors or software-based signing verified at runtime using stored public keys in flash.

Can the SAR ADC perform simultaneous sampling on multiple channels?

No - the single SAR ADC supports hardware channel sequencing with up to 16 channels, but samples one channel at a time. Simultaneous sampling requires external analog multiplexers or separate ADCs. However, the sequencer's sub-microsecond channel switching and built-in averaging reduce effective jitter for multi-sensor correlation.

What development tools are required to program CY8C4244LQQ-443?

PSoC Creator IDE (free, Windows-only) is mandatory for schematic-based hardware configuration and component library integration. Programming and debug use MiniProg3 or KitProg2 programmers via SWD interface. Arm GCC toolchain is supported for custom firmware, but PSoC-specific APIs and peripheral drivers require PSoC Creator-generated startup code and initialization routines.