Infineon Technologies CY8C6247FTI-D52T

Overview

CY8C6247FTI-D52T from Infineon is a dual-core Arm® Cortex®-M4F/M0+ PSoC™ 62 microcontroller with 1-MB flash, 288-KB SRAM, integrated SIMO DC-DC converter, CAPSENSE™, and hardware crypto accelerator-designed for secure, ultra-low-power IoT edge nodes requiring concurrent real-time control and wireless protocol stack execution.

For engineers reviewing the CY8C6247FTI-D52T datasheet, CY8C6247FTI-D52T pinout, CY8C6247FTI-D52T application, or CY8C6247FTI-D52T equivalent, key selection criteria include dual-CPU power efficiency (22 µA/MHz @ 0.9 V M4), QSPI XIP with on-the-fly encryption, Deep Sleep current (7 µA w/64-KB SRAM retention), and programmable analog/digital subsystems for sensor fusion and human interface.

Technical Context

The device implements a tightly coupled dual-CPU architecture where the Cortex-M4F handles compute-intensive tasks (e.g., signal processing, TLS) while the Cortex-M0+ manages low-latency peripherals and real-time scheduling. Memory coherency is maintained via IPC and shared SRAM with protection contexts.

Its clock system integrates FLL (for IMO multiplication), PLL (for high-frequency peripheral clocks), and fractional dividers enabling precise timing across TCPWM, SCB, and USB modules-critical for synchronized sensor sampling and audio I2S/TDM streaming.

Key Specifications

Pinout & Package

This device is packaged in a 124-ball BGA (7 mm × 7 mm × 0.8 mm, 0.4-mm pitch) with 100 user-programmable GPIOs, including six overvoltage-tolerant (OVT) pins and two Smart I/O ports supporting Boolean logic during Deep Sleep.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RP2040 and STM32WB55, CY8C6247FTI-D52T uniquely combines dual-core deterministic scheduling, hardware-enforced security contexts, and reconfigurable analog/digital fabric-making it optimal for applications demanding concurrent real-time control, sensor fusion, and end-to-end encrypted connectivity.

Availability

CY8C6247FTI-D52T is available at Aetrix Electronics and suitable for smart home sensor hubs, wearable health monitors, industrial wireless nodes, and secure edge gateways requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for CY8C6247FTI-D52T 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 secure embedded solutions-with annual revenue exceeding €14 billion and global manufacturing in Dresden, Villach, and Kulim.

The PSoC™ 62 product line targets secure, ultra-low-power IoT endpoints-integrating Arm dual-core processing, programmable analog/digital fabric, and hardware-rooted security to eliminate discrete security ICs and reduce BOM count.

FAQ

What is the maximum operating frequency of the Cortex-M4F core in CY8C6247FTI-D52T?

The Cortex-M4F core operates at up to 150 MHz, verified by Infineon's datasheet Rev. *Q (2023-12-13). This frequency is achievable under 1.1-V core supply with appropriate thermal management and clock source configuration-e.g., using the PLL driven by an external 16–35 MHz crystal or the FLL locked to the 8-MHz IMO.

Does CY8C6247FTI-D52T support external memory execution with encryption?

Yes. The QSPI/SMIF interface supports Execute-in-Place (XIP) from external quad SPI flash with on-the-fly AES-128 or AES-256 decryption enabled via the hardware crypto accelerator. The 4-KB SMIF cache reduces power consumption during XIP access, and decryption keys are stored in protected memory regions enforced by the eight protection contexts.

How many GPIOs support overvoltage tolerance, and what is the rating?

Six GPIO pins (P0[0]–P0[3], P12[0]–P12[1]) are overvoltage tolerant up to 5.5 V, as specified in Section 6.2.4 of the datasheet. These pins retain functionality across 1.7–3.6-V I/O supply ranges and tolerate transient overvoltages beyond VDDIO-enabling direct connection to legacy 5-V buses or industrial sensors without level-shifting circuitry.

Can CAPSENSE™ operate during Deep Sleep mode, and what is its current draw?

Yes. CAPSENSE™ can scan capacitive buttons/sliders in Deep Sleep mode using the low-power scanning engine, drawing ≤1.5 µA typical (per Infineon AN229347). It leverages the 32-kHz ILO clock and dedicated hardware sequencer to perform autonomous scans without waking either CPU-enabling wake-on-touch in battery-powered devices with multi-year runtime.