Infineon Technologies CY8C6245AZI-S3D42

Overview

CY8C6245AZI-S3D42 from Infineon is a dual-core Arm® Cortex®-M4F/M0+ PSoC™ 62 microcontroller with 512 KB flash, 256 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 capacitive sensing (CSD), segment LCD drive, and Quad-SPI XIP. It targets secure, ultra-low-power IoT edge nodes requiring real-time sensor fusion and wireless coexistence.

For engineers reviewing the CY8C6245AZI-S3D42 datasheet, CY8C6245AZI-S3D42 pinout, CY8C6245AZI-S3D42 application, or CY8C6245AZI-S3D42 equivalent, key selection considerations include dual-CPU power efficiency trade-offs (22 µA/MHz @ 0.9 V M4), on-chip DC-DC quiescent current (<1 µA), CAN FD timing compliance, and SMIF encryption support for secure external code execution.

Technical Context

The device implements a tightly coupled dual-CPU subsystem where the Cortex-M4F handles complex signal processing and security-critical tasks while the Cortex-M0+ manages low-power peripheral orchestration and real-time I/O control. Inter-processor communication (IPC) uses dedicated hardware mailboxes with interrupt signaling and memory protection unit (MPU) isolation between domains.

Its clock system integrates an 8-MHz IMO (±2%), 32-kHz ILO, programmable PLL/FLL, and integer/fractional dividers to deliver precise, low-jitter clocks to TCPWMs, SCBs, and USB. The CAN FD block supports data rates up to 5 Mbps with flexible bit timing and hardware message filtering.

Key Specifications

Pinout & Package

This device is packaged in a 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch) with 64 GPIOs, including two overvoltage-tolerant (OVT) pins and two Smart I/O ports (8 pins total) supporting Boolean logic in Deep Sleep mode.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32WB55RG and RA6M5G, CY8C6245AZI-S3D42 uniquely combines dual-application-core partitioning, on-die SMIF encryption, and hardware-accelerated capacitive sensing-enabling single-chip solutions for battery-powered IoT endpoints requiring both security and human interface intelligence.

Availability

CY8C6245AZI-S3D42 is available at Aetrix Electronics and suitable for smart home hubs, industrial sensor nodes, medical wearables, and automotive body controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY8C6245AZI-S3D42 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 automotive ICs, with global manufacturing and quality certifications including IATF 16949 and ISO 9001.

This part belongs to the PSoC™ 62 family-designed specifically for secure, ultra-low-power IoT endpoints that demand concurrent wireless connectivity, rich human interface (touch/LCD), and real-time sensor processing in constrained energy budgets.

FAQ

What is the maximum operating frequency of the Cortex-M4F core in CY8C6245AZI-S3D42?

The Cortex-M4F core operates at up to 150 MHz, verified by the device's internal PLL configuration and electrical specifications in the Infineon datasheet (002-26168 Rev. *N). This frequency is achievable under 1.1 V core voltage with ambient temperature ≤85°C and proper decoupling per layout guidelines.

Does CY8C6245AZI-S3D42 support execute-in-place (XIP) from external flash?

Yes-it features a Quad-SPI/Serial Memory Interface (SMIF) with hardware XIP support, including a 4-KB cache and on-the-fly AES-128 decryption. External flash must be quad-SPI compatible and configured for single/dual/quad mode per the SMIF register map in the technical reference manual.

How many GPIOs support Deep Sleep Boolean logic (Smart I/O)?

Sixteen GPIOs support Smart I/O functionality: eight pins in Port 0 (P0[0]–P0[7]) and eight in Port 1 (P1[0]–P1[7]). These pins retain Boolean logic capability-including AND, OR, XOR, and invert-in Deep Sleep mode without waking either CPU core.

Is CAN FD timing compliant with ISO 11898-1:2015?

Yes-the integrated CAN FD controller meets ISO 11898-1:2015 requirements for arbitration and data phase bit timing, supporting programmable sample points, propagation delay compensation, and bit rates up to 5 Mbps in the data phase, as confirmed in the device's functional description section.