Infineon Technologies CY8C6144AZI-S4F82

Overview

CY8C6144AZI-S4F82 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, QSPI/XIP, and programmable analog/digital peripherals - designed for secure, ultra-low-power IoT edge nodes requiring real-time sensor fusion and wireless coexistence.

For engineers reviewing the CY8C6144AZI-S4F82 datasheet, CY8C6144AZI-S4F82 pinout, CY8C6144AZI-S4F82 application, or CY8C6144AZI-S4F82 equivalent, key selection considerations include Deep Sleep current (7 µA), dual-CPU voltage scaling (0.9 V / 1.1 V), hardware crypto acceleration, on-chip DC-DC buck converter (<1 µA quiescent), and segment LCD drive support up to 61 segments in System Deep Sleep mode.

Technical Context

The device implements a tightly coupled dual-CPU subsystem where the Cortex-M4F (150 MHz) handles application processing and signal integrity tasks, while the Cortex-M0+ (100 MHz) is reserved exclusively for system-level functions including security boot, power management, and peripheral arbitration - no user application code runs on M0+.

Its programmable analog subsystem includes two synchronized 12-bit 2-Msps SAR ADCs with 16-channel sequencer and Deep Sleep operation, one 12-bit DAC with <2 µs settling time, two low-power comparators active in Hibernate, and two opamps with continuous-time operation - all accessible via hardware-triggered TCPWM kill signals and Smart I/O Boolean logic during low-power states.

Key Specifications

Pinout & Package

This device is housed in an 80-pin TQFP package (ZI suffix), with 62 GPIOs supporting programmable drive strength, slew rate, and overvoltage tolerance on two pins. Pin functions are validated per Infineon's official CY8C61x4 pinout diagram (Rev. *H, p.29).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C6144AZI-S4F82, CY8C6247AZI-D54 offers greater memory and integrated BLE but sacrifices CAN FD and increases power consumption in active mode; STM32WB55RGV provides lower-cost BLE integration but lacks dual-core isolation, hardware crypto context switching, and analog programmability essential for sensor-fusion edge nodes.

Availability

CY8C6144AZI-S4F82 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 long-lifecycle deployments.

Supply support for CY8C6144AZI-S4F82 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, security solutions, and embedded controllers - with global R&D centers and ISO/TS 16949-certified manufacturing.

This part belongs to the PSOC™ 6 family, engineered specifically for secure, ultra-low-power IoT edge devices that demand hardware-enforced trust, heterogeneous processing, and integrated analog/digital programmability - not general-purpose MCU use cases.

FAQ

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

No. The Cortex-M0+ in CY8C6144AZI-S4F82 is reserved exclusively for system-level functions including secure boot, power management, interrupt arbitration, and peripheral initialization. Application firmware executes solely on the Cortex-M4F core, ensuring deterministic real-time behavior and hardware-enforced separation of trusted services.

Does this device support external memory execution with encryption?

Yes. The Quad-SPI/SMIF interface supports Execute-In-Place (XIP) from external flash with on-the-fly AES-128 decryption. A dedicated 4-KB cache optimizes instruction fetch latency, and hardware encryption keys are stored in protected memory regions - enabling secure external code storage without exposing plaintext firmware.

What is the lowest achievable current in Deep Sleep mode?

The device achieves 7 µA typical Deep Sleep current with 64-KB SRAM retention, measured at 3.3 V and 25°C. This includes active backup domain (RTC + 64-byte memory) and selected wakeup sources. The on-chip DC-DC buck converter contributes <1 µA quiescent current, making it optimal for coin-cell or energy-harvesting applications.

Can CapSense™ operate during low-power states?

Yes. Capacitive Sigma-Delta (CSD) sensing remains fully functional in System Deep Sleep mode. SmartSense auto-tuning adjusts baseline and sensitivity dynamically, and the CSD block can generate interrupts to wake the CPU - enabling touch UI responsiveness without compromising battery life in always-on wearable or access terminal designs.