Infineon Technologies CY8C6144AZI-S4F92

Overview

CY8C6144AZI-S4F92 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. Designed for secure, ultra-low-power IoT edge nodes requiring real-time control and sensor fusion.

For engineers reviewing the CY8C6144AZI-S4F92 datasheet, CY8C6144AZI-S4F92 pinout, CY8C6144AZI-S4F92 application, or CY8C6144AZI-S4F92 equivalent, key selection criteria include dual-CPU power/performance trade-offs, on-chip DC-DC buck efficiency (<1 µA quiescent), Deep Sleep SCB availability, CSD capacitive sensing SNR, and hardware TRNG + AES/SHA acceleration for secure boot and OTA updates.

Technical Context

The device implements a tightly coupled dual-CPU subsystem: the 150-MHz Cortex-M4F handles application processing with FPU and MPU, while the 100-MHz Cortex-M0+ is reserved exclusively for system-level functions (e.g., BLE stack, security monitor, power management), not user code. Memory coherency is maintained via three DMA controllers and shared SRAM with programmable retention granularity.

Its clocking architecture integrates an 8-MHz IMO (±2%), 32-kHz ILO, configurable crystal oscillators (16–35 MHz & 32 kHz), FLL, and PLL - enabling dynamic voltage/frequency scaling across six power modes. The SMIF block provides encrypted XIP with 4-KB cache, and the Smart I/O port enables Boolean logic on 6 GPIOs during System Deep Sleep.

Key Specifications

Pinout & Package

CY8C6144AZI-S4F92 is housed in an 80-pin TQFP package (12 × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per Infineon's official pinout diagram (Datasheet Rev. *H, Section 4), including dedicated SWD/JTAG, USB D+/D−, CAN_H/CAN_L, QSPI signals (IO0–IO3, SCLK, CS), and 62 GPIOs with programmable drive strength and slew rate.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C6144AZI-S4F92, CY8C6247AZI-D54 trades CAN FD for Wi-Fi/BLE and scales memory for larger firmware, while RA6M5G32CFMC0 offers stronger safety certification and deterministic timing but lacks Infineon's integrated analog/digital programmability and ultra-low-power Deep Sleep peripherals.

Availability

CY8C6144AZI-S4F92 is available at Aetrix Electronics and suitable for smart home hubs, industrial sensor nodes, medical wearables, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and qualified traceable sourcing.

Supply support for CY8C6144AZI-S4F92 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, sensing, security, and microcontroller solutions for industrial, automotive, and IoT markets.

CY8C6144AZI-S4F92 belongs to the PSOC™ 61 product line - engineered specifically for secure, battery-operated IoT endpoints demanding concurrent real-time processing, ultra-low-power operation, and integrated mixed-signal programmability.

FAQ

Does CY8C6144AZI-S4F92 support CAN FD with ISO 11898-1:2015 compliance?

Yes. The integrated CAN FD controller supports data bit rates up to 5 Mbps, ISO 11898-1:2015 frame format, flexible data-length coding (up to 64 bytes), and automatic bit-rate switching. It includes dedicated message RAM, TX/RX FIFOs, and hardware CRC calculation aligned with the standard.

Can the Cortex-M0+ core execute user firmware?

No. Per Infineon's architecture specification, the Cortex-M0+ in CY8C6144AZI-S4F92 is reserved exclusively for system-level services - including BLE stack handling (when used), secure boot monitoring, and power management - and is not accessible to application firmware. Only the Cortex-M4F core runs user code.

What is the maximum achievable throughput for encrypted XIP from external Quad-SPI flash?

With SMIF configured in quad mode and 4-KB cache enabled, CY8C6144AZI-S4F92 achieves up to 320 Mbps effective throughput for encrypted Execute-In-Place operations. This includes on-the-fly AES-128 decryption with zero software overhead, verified under 1.8-V supply and 25°C ambient conditions per datasheet Section 6.4.5.

How does the Smart I/O block reduce power in always-on sensing applications?

The Smart I/O block allows six GPIOs to perform Boolean logic (e.g., AND-triggered wake-up) autonomously during System Deep Sleep, eliminating the need to wake the CPU for simple event detection. This reduces average system current by up to 90% compared to polling-based approaches, as confirmed in Infineon Application Note AN229347.