Infineon Technologies CY8C6136FTI-F42T

Overview

CY8C6136FTI-F42T from Infineon is a dual-core PSOC™ 61 microcontroller featuring a 150-MHz Arm® Cortex®-M4F CPU and a dedicated 100-MHz Cortex®-M0+ for system functions, 1-MB flash, 288-KB SRAM, integrated CAPSENSE™, hardware cryptography accelerator, and QSPI/XIP support - deployed in ultra-low-power IoT edge nodes requiring secure firmware updates and capacitive touch interfaces.

For engineers reviewing the CY8C6136FTI-F42T datasheet, CY8C6136FTI-F42T pinout, CY8C6136FTI-F42T application, or CY8C6136FTI-F42T equivalent, this device is selected for its dual-CPU power efficiency (22 µA/MHz @ 0.9 V M4 core), on-chip SIMO DC-DC converter (<1 µA quiescent), Deep Sleep current of 7 µA with 64-KB SRAM retention, and programmable analog/digital subsystems enabling rapid sensor fusion and secure connectivity.

Technical Context

The CY8C6136FTI-F42T implements a tightly coupled dual-CPU architecture where the Cortex®-M4F handles application processing and real-time control while the Cortex®-M0+ manages low-level system services including security boot, interrupt routing, and power mode transitions. Its memory subsystem supports read-while-write (RWW) flash operation and two independent 8-KB caches.

Timing is managed via multiple oscillators: an 8-MHz IMO (±2%), 32-kHz ILO, crystal oscillators (16–35 MHz & 32 kHz), FLL, PLL, and fractional clock dividers - enabling precise peripheral synchronization across active and Deep Sleep modes. The SMIF interface provides XIP execution from external quad SPI flash at up to 640 Mbps with on-the-fly AES encryption.

Key Specifications

Pinout & Package

The CY8C6136FTI-F42T is housed in a 124-ball fine-pitch BGA package (6 mm × 6 mm, 0.4 mm ball pitch), optimized for compact PCB layout and thermal performance in space-constrained IoT endpoints. Pin assignments are validated per Infineon's official pinout diagram (Document 002-21414 Rev. *R, Page 33).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C6136FTI-F42T, the CY8C6137FMI-F44 trades package size and I/O for reduced form factor, while the STM32WB55RG replaces dual-core flexibility and analog programmability with integrated BLE - making the CY8C6136FTI-F42T uniquely suited for heterogeneous sensor fusion and secure edge compute where hardware customization matters.

Availability

CY8C6136FTI-F42T is available at Aetrix Electronics and suitable for industrial predictive maintenance nodes, secure access terminals, wearable health monitors, and smart home sensor hubs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY8C6136FTI-F42T 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 ICs, security solutions, and embedded controllers - with over 30 years of innovation in microcontroller reliability and industrial-grade design.

The PSOC™ 6 family targets secure, ultra-low-power IoT endpoints, combining programmable analog/digital fabric with Arm dual-core processing to accelerate development of differentiated edge devices - not just general-purpose MCUs.

FAQ

Does CY8C6136FTI-F42T support external memory execution (XIP) and what interface is used?

Yes, it supports Execute-In-Place (XIP) from external quad SPI flash via its Serial Memory Interface (SMIF). The interface supports single, dual, quad, dual-quad, and octal modes with throughput up to 640 Mbps, and includes 4-KB cache and on-the-fly AES encryption/decryption for secure firmware storage.

What power modes does CY8C6136FTI-F42T offer and how low is its deepest sleep current?

The device offers six power modes including Active, Sleep, Deep Sleep, Hibernate, and two variants of Flash Programming mode. Its deepest configurable state is Deep Sleep with 64-KB SRAM retention at 7 µA - achieved using the on-chip SIMO DC-DC converter and selective clock gating across subsystems.

Can the Cortex-M0+ core be used for application code or is it strictly reserved?

In the CY8C6136FTI-F42T, the Cortex-M0+ is reserved exclusively for system-level functions including secure boot, interrupt arbitration, IPC messaging, and power mode management - it is not accessible to user application code per Infineon's architectural partitioning in PSOC™ 61 series.

Is CAPSENSE™ supported in low-power modes and what sensing methods does it enable?

Yes, CAPSENSE™ operates in Deep Sleep mode using dedicated low-power hardware resources. It supports both self-capacitance and mutual-capacitance sensing, dynamic reconfiguration between modes, and SmartSense auto-tuning - enabling robust touch, proximity, and liquid-tolerant interfaces without waking the main CPU.