Infineon Technologies CY8C4147AZI-S465

Overview

CY8C4147AZI-S465 from Cypress Semiconductor is a PSoC 4100S Plus programmable system-on-chip featuring a 48-MHz Arm Cortex-M0+ CPU, 128 KB flash, 16 KB SRAM, integrated CapSense sigma-delta capacitive sensing, CAN 2.0B interface, and 54 GPIOs in a 48-pin TQFP (0.5-mm pitch) package. It targets embedded human-interface and industrial control applications requiring mixed-signal reconfigurability, low-power operation (2.5 µA Deep Sleep), and hardware-accelerated touch sensing.

For engineers reviewing the CY8C4147AZI-S465 datasheet, CY8C4147AZI-S465 pinout, CY8C4147AZI-S465 application, or CY8C4147AZI-S465 equivalent, key selection criteria include its integrated CAN 2.0B block with TTCAN support, dual opamps operable in Deep Sleep, 12-bit 1-Msps SAR ADC with sequencer, programmable analog CTBm blocks, and CapSense CSD engine delivering >5:1 SNR and water tolerance.

Technical Context

The device implements a tightly coupled MCU subsystem with an Arm Cortex-M0+ core, 8-channel DMA, NVIC with eight interrupt inputs, and Wakeup Interrupt Controller (WIC) for sub-35-µs Deep Sleep wake-up. Its clock architecture integrates IMO (±2%), ILO, WCO, ECO (4–33 MHz), and PLL to generate stable 48-MHz HFCLK with fractional/integer dividers for peripheral synchronization.

Analog functionality centers on two reconfigurable opamps (high-drive external/high-bandwidth internal modes), a 12-bit SAR ADC with differential/single-ended input and channel sequencer, two IDACs, two low-power comparators, and a dedicated capacitance-sensing block enabling sigma-delta CapSense with SmartSense™ auto-tuning. The CAN block supports Time-Triggered CAN (TTCAN) and full CAN 2.0B protocol compliance.

Key Specifications

Pinout & Package

Package: 48-pin TQFP (0.5-mm pitch), RoHS-compliant, lead-free, moisture-sensitive level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.

Compared with STM32G071KB and MAX32660, CY8C4147AZI-S465 uniquely combines CapSense CSD, CAN 2.0B with TTCAN, and programmable analog blocks in one die-enabling single-chip HMI + control solutions where touch reliability, bus determinism, and analog flexibility are co-dependent design requirements.

Availability

CY8C4147AZI-S465 is available at Aetrix Electronics and suitable for automotive body electronics, industrial HMI panels, smart home appliance control, and portable medical device front-ends requiring stable component supply, long-term lifecycle assurance, and qualified manufacturing traceability.

Supply support for CY8C4147AZI-S465 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance, programmable embedded systems for industrial, automotive, and consumer applications, with expertise in mixed-signal SoC architecture and capacitive sensing IP.

The PSoC 4100S Plus product line targets cost-sensitive, low-power human-interface and control applications requiring reconfigurable analog/digital logic, hardware-accelerated CapSense, and deterministic communication interfaces like CAN and TTCAN.

FAQ

What development tools are supported for CY8C4147AZI-S465?

PSoC Creator IDE is the primary development environment, offering schematic-based hardware design, automatic analog/digital routing, and pre-verified components. It supports Arm GCC and Keil MDK toolchains. Debugging uses standard Serial Wire Debug (SWD) with MiniProg3 or third-party probes compatible with Arm CoreSight. No proprietary hardware is required.

Does CY8C4147AZI-S465 support hardware encryption?

Yes - it includes a True Random Number Generator (TRNG) for entropy sourcing and supports AES-128 via software libraries running on the Cortex-M0+ core. While it lacks a dedicated hardware AES accelerator, the TRNG meets NIST SP 800-90B requirements for cryptographic key generation in secure boot and TLS implementations.

Can all 54 GPIOs be used simultaneously for CapSense?

No - CapSense CSD supports up to 32 sensors per device, constrained by internal routing resources and scan time limits. The 54 GPIOs are fully programmable for digital, analog, or CapSense roles, but concurrent CapSense usage is limited to 32 electrodes; remaining pins may serve as GPIOs, analog inputs, or SCB interfaces.

Is the CAN block compliant with ISO 11898-1:2015?

Yes - the integrated CAN 2.0B controller implements full ISO 11898-1:2015 physical layer signaling compatibility when paired with an external CAN transceiver (e.g., CY8C4147AZI-S465 requires external transceiver for bus termination and differential drive). TTCAN mode supports synchronized message scheduling per ISO/DIS 11898-4.