Infineon Technologies CY8C6245AZI-S3D12

Overview

CY8C6245AZI-S3D12 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 XIP from external QSPI flash at up to 320 Mbps. Designed for secure, ultra-low-power IoT edge nodes requiring real-time sensor fusion and wireless coexistence.

For engineers reviewing the CY8C6245AZI-S3D12 datasheet, CY8C6245AZI-S3D12 pinout, CY8C6245AZI-S3D12 application, or CY8C6245AZI-S3D12 equivalent, this MCU delivers verified dual-CPU power efficiency (22 µA/MHz @ 0.9 V M4), on-chip DC-DC (<1 µA quiescent), and production-ready security features including ROM-based Secure Boot, eFuse protection contexts, and TRNG-critical for certified industrial and medical endpoint designs.

Technical Context

The device implements a tightly coupled dual-CPU subsystem: the 150-MHz Cortex-M4F handles compute-intensive tasks (e.g., sensor preprocessing, encryption) while the 100-MHz Cortex-M0+ manages low-latency I/O and peripheral control. Inter-processor communication uses hardware IPC channels with mailbox and interrupt support.

Its clock system integrates an 8-MHz IMO (±2%), 32-kHz ILO, programmable PLL/FLL, and integer/fractional dividers-enabling independent clock domains for CPU cores, peripherals, and SMIF. The CAN FD block supports data rates up to 5 Mbps and ISO 11898-1:2015 compliance with flexible bit timing configuration.

Key Specifications

Pinout & Package

CY8C6245AZI-S3D12 is housed in a 100-pin TQFP (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments are validated per Infineon's official pinout diagram (Document 002-26168 Rev. *N, Section 4).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32WB55RGV and RA6M5G32FPKBE, CY8C6245AZI-S3D12 uniquely combines dual-core deterministic partitioning, CAN FD + USB + QSPI in one die, and sub-10 µA Deep Sleep with SRAM retention-making it optimal for resource-constrained, multi-interface IoT endpoints needing both security and longevity.

Availability

CY8C6245AZI-S3D12 is available at Aetrix Electronics and suitable for industrial sensor nodes, medical wearables, automotive telematics gateways, and smart home hubs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY8C6245AZI-S3D12 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 MCUs, and security solutions, with global manufacturing and R&D infrastructure.

This device belongs to the PSoC™ 62 product line-designed specifically for secure, ultra-low-power IoT endpoints that demand concurrent connectivity (CAN FD, USB, QSPI), hardware-enforced trust, and intelligent analog/digital integration without external components.

FAQ

Does CY8C6245AZI-S3D12 support JTAG debugging?

Yes, it supports Serial Wire Debug (SWD) via SWDCLK and SWDIO pins, compatible with standard ARM debug probes. JTAG is not implemented; SWD provides full debug access including breakpoints, memory inspection, and secure debug disable via eFuse programming. The device ID is accessible through the SWJ-DP interface as a 32-bit value with defined revision and manufacturer fields.

What is the maximum operating frequency of the CAN FD peripheral?

The CAN FD block supports data bit rates up to 5 Mbps in fast-phase mode, compliant with ISO 11898-1:2015. It uses dedicated clock dividers tied to the system PLL and supports programmable timing quanta, sample point, and synchronization jump width-enabling robust operation across automotive and industrial CAN FD networks.

Can the SAR ADC operate during Deep Sleep mode?

No-the 12-bit SAR ADC requires active CPU or DMA context and cannot run autonomously in Deep Sleep. However, two low-power comparators remain fully operational in Deep Sleep and can trigger wake events or drive Smart I/O logic without waking the CPUs, enabling ultra-low-power threshold monitoring.

Is external flash required for QSPI XIP functionality?

Yes-QSPI XIP requires an external quad-SPI NOR flash connected to the dedicated SMIF pins (e.g., IO[0]–IO[3], SCK, SS). The on-chip 4 KB SMIF cache and hardware decryption engine enable secure, low-latency execution directly from that flash, eliminating the need to copy code to internal RAM during boot or runtime.