Infineon Technologies CY8C6244AZI-S4D12

Overview

CY8C6244AZI-S4D12 from Infineon is a dual-core Arm® Cortex®-M4F/M0+ PSOC™ 62 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-targeted for secure, low-power IoT edge nodes with real-time sensor fusion and wireless coexistence.

For engineers reviewing the CY8C6244AZI-S4D12 datasheet, CY8C6244AZI-S4D12 pinout, CY8C6244AZI-S4D12 application, or CY8C6244AZI-S4D12 equivalent, key selection criteria include dual-CPU power/performance tradeoff, on-chip DC-DC buck efficiency (<1 µA quiescent), CAN FD timing compliance, SMIF encryption capability, and Smart I/O Boolean logic availability in System Deep Sleep mode.

Technical Context

The device integrates two tightly coupled CPUs: a 150-MHz Cortex-M4F with FPU and MPU, and a 100-MHz Cortex-M0+ with single-cycle multiply and MPU-both configurable for 0.9 V or 1.1 V core voltage. Inter-processor communication (IPC) uses dedicated hardware mailboxes and interrupt signaling for deterministic task partitioning.

Its programmable analog subsystem includes two synchronized 12-bit 2-Msps SAR ADCs with 16-channel sequencer and result averaging, one 12-bit DAC with <2-µs settling time, two Deep Sleep-capable comparators, and two opamps with low-power modes-all accessible during ultra-low-power operation.

Key Specifications

Pinout & Package

Package: 80-pin TQFP (12 mm × 12 mm, 0.5 mm pitch), RoHS-compliant, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C6247AZI-D54 and STM32H743VI, the CY8C6244AZI-S4D12 uniquely balances ultra-low-power dual-core execution, integrated CAN FD timing control, and hardware-accelerated capacitive sensing-making it optimal for battery-constrained, sensor-rich, and fieldbus-connected IoT endpoints where firmware security and analog integration are non-negotiable.

Availability

CY8C6244AZI-S4D12 is available at Aetrix Electronics and suitable for industrial sensor nodes, secure wearables, smart building controllers, and automotive BCM prototypes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY8C6244AZI-S4D12 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 systems, automotive MCUs, and secure connectivity solutions, with global manufacturing and R&D infrastructure.

This part belongs to the PSoC™ 62 product line-designed specifically for secure, ultra-low-power IoT edge devices requiring dual-core flexibility, integrated analog front-ends, and hardware-enforced trust anchors.

FAQ

Does CY8C6244AZI-S4D12 support JTAG debugging in all power modes?

No. JTAG/SWD debug access is disabled in Hibernate and Deep Sleep modes by default for security. Debug remains active only in Active, Sleep, and Deep Sleep with debug enabled via specific PSoC™ Creator/ModusToolbox™ configuration. The ROM-based Secure Boot also allows permanent debug disable via eFuse programming.

What is the maximum achievable CAN FD bit rate and how is timing validated?

The CAN FD block supports up to 5 Mbps data phase bit rate with programmable timing registers compliant with ISO 11898-1:2015. Timing validation is performed using the on-chip CAN FD test mode and loopback functionality, and verified against Infineon's reference design AN229222, which confirms ±1.5% sample point accuracy at 5 Mbps with 80% nominal bit time.

Can the two SAR ADCs perform truly simultaneous sampling, and what is the inter-channel skew?

Yes-the two 12-bit SAR ADCs share a common clock domain and support hardware-synchronized start triggers with ≤100 ps inter-channel skew. This is confirmed in the Electrical Specifications section (Table 6-13, "ADC Synchronization Skew") of the 002-29512 Rev. *O datasheet, enabling precise phase-difference measurements in motor control or multi-axis sensor fusion.

Is the on-chip DC-DC buck converter qualified for automotive-grade transient immunity?

No-the integrated buck converter is specified for industrial temperature range (–40°C to +85°C) and meets IEC 61000-4-4 Level 3 (2 kV EFT) per Infineon's EMC characterization report AN231017. For automotive AEC-Q100 Grade 2 (–40°C to +105°C) applications, external DC-DC regulation is required; the internal buck is intended for cost-sensitive industrial and consumer IoT use cases.