Infineon Technologies CY8C6244AZI-S4D83

Overview

CY8C6244AZI-S4D83 from Infineon is a dual-core Arm® Cortex®-M4F/M0+ PSOC™ 62 microcontroller with 256 KB flash, 128 KB SRAM, integrated CAN FD, USB Full-Speed, six configurable SCBs, and hardware cryptography acceleration-designed for secure, ultra-low-power IoT edge nodes requiring real-time sensor fusion and wireless coexistence.

For engineers reviewing the CY8C6244AZI-S4D83 datasheet, CY8C6244AZI-S4D83 pinout, CY8C6244AZI-S4D83 application, or CY8C6244AZI-S4D83 equivalent, key selection criteria include Deep Sleep current (7 µA with 64 KB SRAM retention), dual-CPU voltage scaling (0.9 V / 1.1 V), on-chip DC-DC buck converter (<1 µA quiescent), QSPI XIP with 4 KB cache, and CAPSENSE™ with SmartSense auto-tuning.

Technical Context

The device implements a tightly coupled dual-CPU subsystem where the Cortex-M4F (150 MHz) handles complex signal processing and security-critical tasks, while the Cortex-M0+ (100 MHz) manages low-latency peripheral control and power-state coordination. Inter-processor communication uses hardware IPC channels with mailbox semantics and interrupt signaling.

Its programmable analog subsystem integrates two synchronized 12-bit 2-Msps SAR ADCs, a 12-bit DAC with <2 µs settling time, two opamps, and two Deep Sleep-capable comparators-enabling concurrent sensor acquisition and analog conditioning without waking the main CPU.

Key Specifications

Pinout & Package

This device is housed in an 80-pin TQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per Infineon's CY8C62x4 Datasheet Rev. *O, Section 4 "Pinouts".

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core secure MCU applications.

Compared with STM32WB55RGV6 and RA6M5G32FPKBE, CY8C6244AZI-S4D83 uniquely combines dual-CPU voltage scaling, CAN FD + USB + QSPI XIP in one die, and CAPSENSE™ with SmartSense-making it optimal for resource-constrained, battery-operated IoT endpoints requiring fieldbus interoperability and human interface security.

Availability

CY8C6244AZI-S4D83 is available at Aetrix Electronics and suitable for smart home sensor hubs, industrial predictive maintenance nodes, wearable health monitors, and secure access control terminals requiring stable component supply across multi-year production cycles.

Supply support for CY8C6244AZI-S4D83 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 German semiconductor manufacturer specializing in power management, automotive ICs, and secure microcontrollers, with global R&D centers and ISO/TS 16949-certified manufacturing.

This part belongs to the PSoC™ 62 product line-designed specifically for secure, ultra-low-power IoT edge devices that demand concurrent wireless connectivity, analog sensing, and hardware-enforced trust anchors.

FAQ

Does CY8C6244AZI-S4D83 support JTAG debugging?

Yes, it supports SWD and JTAG interfaces via the SWJ-DP debug port. The 32-bit Silicon ID-including die revision, part number encoding ("E4B0"), and manufacturer ID ("069")-is accessible through this interface. Debug access can be permanently disabled via eFuse configuration to enforce production security policies.

What is the maximum operating frequency of the internal PLL?

The on-chip PLL supports multiplication of input clocks up to 150 MHz for the Cortex-M4F core and 100 MHz for the Cortex-M0+ core. It accepts reference frequencies from the IMO (8 MHz ±2%), external crystals (16–35 MHz), or the FLL output, with programmable integer and fractional dividers per the Technical Reference Manual.

Can the CAPSENSE™ subsystem operate during Deep Sleep mode?

Yes, CAPSENSE™ CSD operates fully in System Deep Sleep mode using the ultra-low-power 32-kHz ILO clock. Automatic SmartSense tuning, baseline tracking, and finger detection occur without waking either CPU, consuming only ~1.2 µA typical current for continuous scanning of up to 32 electrodes.

Is external flash required for QSPI XIP functionality?

Yes, external Quad SPI Flash is required for Execute-In-Place operation. The SMIF controller supports single/dual/quad I/O modes with throughput up to 320 Mbps and includes 4 KB of dedicated cache to minimize latency and reduce active power during instruction fetch-no internal flash is used for XIP.