Infineon Technologies CY8C4547AZQ-S453

Overview

CY8C4547AZQ-S453 from Infineon is a 32-bit PSoC™ 4500S microcontroller based on the Arm® Cortex®-M0+ CPU, operating at up to 48 MHz with 256 KB flash and 32 KB SRAM. It integrates programmable analog (dual 12-bit 1-Msps SAR ADCs, four opamps), digital logic blocks, CAPSENSE™ capacitive sensing, and five reconfigurable Serial Communication Blocks (SCBs) for I²C/SPI/UART. It targets embedded human-interface and motor-control applications requiring mixed-signal integration and low-power operation.

For engineers reviewing the CY8C4547AZQ-S453 datasheet, CY8C4547AZQ-S453 pinout, CY8C4547AZQ-S453 application, or CY8C4547AZQ-S453 equivalent, key selection criteria include its 48-MHz Cortex-M0+ core, dual simultaneous-sampling SAR ADCs, Deep Sleep current of 2.5 µA, CAPSENSE™ sigma-delta architecture with >5:1 SNR, and support for Field-Oriented Control via integrated MCA hardware accelerators.

Technical Context

The device implements a tightly coupled subsystem where the Arm Cortex-M0+ core interfaces with configurable analog blocks-including opamps usable as ADC input buffers-and two independent 12-bit SAR ADCs capable of simultaneous sampling and channel sequencing with signal averaging. Its programmable digital fabric includes eight TCPWM blocks supporting center-aligned PWM, quadrature decoding, and comparator-triggered kill signals for motor safety.

Capacitive sensing is implemented via a dedicated sigma-delta modulator delivering >5:1 SNR and water tolerance, managed by SmartSense auto-tuning firmware. Clocking combines a 4–33 MHz ECO, PLL, 32-kHz WCO, and ±2% IMO, enabling precise timing control across power modes including Deep Sleep with active analog functionality.

Key Specifications

Pinout & Package

Package: 48-pin TQFP (0.5-mm pitch), RoHS-compliant, surface-mount.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C4548LQI-S453, this part offers LCD segment drive and TQFP packaging suited for through-hole prototyping, while differing from CY8C4247LQI-BL483 by delivering higher compute bandwidth, dual simultaneous ADCs, and hardware FOC acceleration essential for real-time motor control.

Availability

CY8C4547AZQ-S453 is available at Aetrix Electronics and suitable for industrial HMI panels, BLDC motor drives, and smart home lighting controls requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for CY8C4547AZQ-S453 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 manufacturer specializing in power management, automotive ICs, and secure microcontrollers, with global R&D and manufacturing infrastructure.

This device belongs to the PSoC™ 4500S product line, designed specifically for embedded systems requiring integrated analog signal conditioning, capacitive touch, motor control acceleration, and flexible digital logic-all on a single chip.

FAQ

What debug interface does CY8C4547AZQ-S453 support?

CY8C4547AZQ-S453 uses Arm Serial-Wire Debug (SWD) with SWDIO and SWCLK pins. It supports full programming, real-time debugging, and trace capabilities directly in the production device without external pods or emulators. The debug circuits are enabled by default but can be disabled in firmware; re-enabling requires full flash erase and reprogramming.

Does CY8C4547AZQ-S453 support capacitive touch with water tolerance?

Yes. Its CAPSENSE™ sigma-delta sensing engine delivers >5:1 signal-to-noise ratio and is explicitly designed for water tolerance. Combined with SmartSense auto-tuning firmware, it maintains reliable button and slider operation even under condensation or light splashing without manual recalibration.

Can the SAR ADCs perform simultaneous sampling?

Yes. The device contains two independent 12-bit 1-Msps SAR ADCs that support true simultaneous sampling on separate channels. This capability is used in motor control for synchronized current and voltage measurement, and in sensor fusion applications requiring time-aligned analog inputs.

What is the lowest active current consumption in Deep Sleep mode?

In Deep Sleep mode with analog blocks active (e.g., CAPSENSE™ monitoring or ADC conversion), the device consumes 2.5 µA total system current. This includes operation of opamps, comparators, and sigma-delta modulators-enabling wake-on-touch or periodic sensor polling without waking the CPU.