Infineon Technologies CY8C6144AZI-S4F83

Overview

CY8C6144AZI-S4F83 from Infineon is a dual-core Arm® Cortex®-M4F/M0+ PSOC™ 61 microcontroller with 256 KB flash, 128 KB SRAM, integrated CAN FD, USB Full-Speed, and hardware cryptography acceleration. It operates from 1.7–3.6 V, achieves 7 µA Deep Sleep current with 64 KB SRAM retention, and supports XIP from external Quad-SPI Flash at up to 320 Mbps - deployed in secure IoT edge nodes requiring real-time sensor fusion and low-power connectivity.

For engineers reviewing the CY8C6144AZI-S4F83 datasheet, CY8C6144AZI-S4F83 pinout, CY8C6144AZI-S4F83 application, or CY8C6144AZI-S4F83 equivalent, key selection criteria include dual-CPU partitioning (M4F for application, M0+ reserved for system functions), on-chip DC-DC buck converter (<1 µA quiescent), 12-bit SAR ADC with synchronized sampling, Smart I/O Boolean logic in Deep Sleep, and hardware TRNG + AES/SHA accelerators.

Technical Context

The device implements a tightly coupled dual-CPU subsystem: the 150-MHz Cortex-M4F handles application code with FPU and MPU, while the 100-MHz Cortex-M0+ executes boot, security, and power management firmware - not user-accessible. Inter-processor communication uses hardware IPC channels with doorbell interrupts and shared memory.

Its programmable analog subsystem includes two independent 12-bit 2-Msps SAR ADCs with 16-channel sequencer and result averaging, one 12-bit DAC with <2-µs settling time, two opamps, and two low-power comparators - all operable in Deep Sleep mode. The SMIF block enables encrypted Execute-In-Place from external QSPI Flash with 4-KB cache.

Key Specifications

Pinout & Package

This device is housed in an 80-pin TQFP package (ZI suffix), with 62 GPIOs including six Smart I/O pins, two overvoltage-tolerant (OVT) inputs, and dedicated pins for CAN FD (CANRX/CANTX), USB D+/D−, and QSPI clock/data lines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32WB55RG and RA6M5, CY8C6144AZI-S4F83 uniquely combines CAN FD, USB FS, hardware-accelerated CapSense™, and sub-10 µA Deep Sleep - making it optimal for cost-sensitive, battery-operated IoT endpoints needing mixed-signal intelligence and automotive-grade connectivity.

Availability

CY8C6144AZI-S4F83 is available at Aetrix Electronics and suitable for industrial sensor nodes, secure wearables, smart building controllers, and automotive body electronics requiring stable component supply across long-lifecycle deployments.

Supply support for CY8C6144AZI-S4F83 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 leader specializing in power management, automotive ICs, and secure microcontrollers - with annual revenue exceeding €14 billion and global manufacturing in Dresden, Villach, and Kulim.

This part belongs to the PSoC™ 6 family, engineered specifically for secure, ultra-low-power IoT edge devices that integrate programmable analog/digital logic with Arm-based processing - bridging the gap between discrete signal conditioning and embedded intelligence.

FAQ

Is the Cortex-M0+ core accessible for user application code?

No. In the CY8C6144AZI-S4F83, the Cortex-M0+ is reserved exclusively for system-level functions including boot, security monitoring, and power management. Application firmware must run solely on the Cortex-M4F core, which includes FPU and MPU for deterministic real-time execution.

Does this device support external QSPI Flash with hardware encryption during XIP?

Yes. The SMIF peripheral provides on-the-fly AES-128 decryption of instructions fetched directly from external Quad-SPI Flash, enabling secure Execute-In-Place without exposing decrypted code to external memory buses - critical for protecting firmware IP in field-deployed devices.

What is the maximum operating frequency of the on-chip DC-DC buck converter?

The integrated DC-DC buck operates up to 12 MHz switching frequency, dynamically adjusting to load conditions while maintaining <1 µA quiescent current in Deep Sleep - delivering regulated 1.1 V core voltage for the M4F at 150 MHz with 92% peak efficiency.

Can CapSense™ operate independently while the CPU remains in Deep Sleep?

Yes. The CapSense™ CSD block runs autonomously in Deep Sleep mode using the 32-kHz ILO clock, performing baseline tracking, noise filtering, and gesture detection - waking the M4F only upon confirmed touch or proximity event, reducing average system power by up to 40% in human-interface applications.