Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Infineon Technologies CY8C4147AZI-S455

Name: CY8C4147AZI-S455
Brand: Infineon Technologies
SKU: CY8C4147AZI-S455
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: CY8C4147AZI-S455

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 64-LQFP

Datasheet:: CY8C4147AZI-S455.pdf

Description:: IC MCU 32BIT 128KB FLASH 64TQFP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,598

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

CY8C4147AZI-S455 from Infineon Technologies (acquired Cypress Semiconductor) is a programmable System-on-Chip (PSoC 4100S Plus) integrating an Arm® Cortex-M0+ CPU, CapSense® capacitive sensing, programmable analog/digital blocks, CAN 2.0B interface, and up to 54 GPIOs in a 48-pin TQFP (0.5-mm pitch) package. It delivers 48 MHz operation, 128 KB flash, 16 KB SRAM, 12-bit 1-Msps SAR ADC, and Deep Sleep current as low as 2.5 µA - enabling secure, low-power embedded control in touch-enabled industrial HMI and motor drive systems.

For engineers reviewing the CY8C4147AZI-S455 datasheet, CY8C4147AZI-S455 pinout, CY8C4147AZI-S455 application, or CY8C4147AZI-S455 equivalent, key selection criteria include its integrated CAN 2.0B block with Time-Triggered CAN support, hardware-accelerated CapSense with >5:1 SNR, programmable TCPWM for motor control kill signals, and device-level security features including debug disable and flash protection.

Technical Context

The CY8C4147AZI-S455 implements a single-layer AHB-Lite interconnect architecture with tightly coupled flash (128 KB, Read Accelerator), SRAM (16 KB, zero-wait-state), and an 8-channel DMA engine. Its clock system integrates IMO (±2%), ILO (32 kHz), WCO, ECO (4–33 MHz), and PLL to generate stable 48 MHz HFCLK with fractional/integer dividers for peripheral synchronization.

Analog subsystem includes two opamps operable in Deep Sleep mode, dual low-power comparators, SAR ADC with channel sequencer and signal averaging, and a dedicated capacitance-sensing block supporting Sigma-Delta (CSD) CapSense. Digital resources comprise five reconfigurable SCBs (I²C/SPI/UART), eight 16-bit TCPWM blocks with center-aligned/PWM/quad-decoder modes, and programmable logic blocks for Boolean port operations.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm Cortex-M0+, 48 MHz, single-cycle multiply - enables real-time deterministic control with minimal latency.
Flash / SRAM	128 KB flash with Read Accelerator; 16 KB SRAM - supports complex firmware with fast code execution and data buffering.
Analog ADC	12-bit SAR ADC, 1 Msps, differential/single-ended, channel sequencer with averaging - delivers high-resolution sensor acquisition with noise suppression.
CapSense	Cypress CapSense CSD with >5:1 SNR and SmartSense™ auto-tuning - ensures robust touch detection under moisture and EMI.
CAN Interface	CAN 2.0B with Time-Triggered CAN (TTCAN) support - provides deterministic, fault-tolerant communication for industrial automation and motor control networks.
Power Modes	Deep Sleep current: 2.5 µA with opamps active - enables battery-powered applications requiring long-term wake-on-event capability.
Security	Debug disable, flash protection, permanent interface disable - prevents unauthorized firmware access or reprogramming in deployed systems.

Pinout & Package

Package: 48-pin TQFP (0.5-mm pitch), RoHS-compliant, surface-mount. Dimensions: 7.0 mm × 7.0 mm × 1.4 mm (max). Thermal pad not present. Compatible with standard reflow profiles per J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
P0[0]–P0[7]	GPIO Port 0	Programmable digital/analog/CapSense pins; support drive strength/slew rate configuration and interrupt generation.
P1[0]–P1[7]	GPIO Port 1	Includes dedicated SWDIO/SWCLK for debug; configurable as analog inputs or CAN TX/RX when enabled.
P2[0]–P2[7]	GPIO Port 2	Support LCD segment drive; usable as IDAC outputs or comparator inputs in low-power sensing configurations.
P3[0]–P3[7]	GPIO Port 3	Include CAN_TX and CAN_RX pins (P3[0]/P3[1]); enable direct connection to CAN transceiver without external routing.
VDD / VSS	Power / Ground	Single 1.71–5.5 V supply; internal LDO regulates core voltage - simplifies power design with no external regulator required.
XRES	Reset Input	Active-low asynchronous reset; debounced internally - eliminates need for external RC reset circuitry.

Key Features

Feature	Design Value
Programmable Analog Blocks	Two opamps + two comparators operational in Deep Sleep mode - enables always-on sensor conditioning without waking CPU.
CapSense Hardware Engine	Dedicated CSD block with >5:1 SNR and SmartSense™ auto-calibration - reduces firmware overhead and improves touch reliability across temperature/humidity.
TCPWM Motor Control	Eight 16-bit TCPWM blocks with comparator-triggered kill signals - supports precise PWM timing and hardware-fail-safe shutdown for BLDC/PMSM drives.
Reconfigurable SCBs	Five Serial Communication Blocks supporting I²C/SPI/UART simultaneously - allows mixed-protocol connectivity (e.g., I²C sensor + SPI display + UART debug) without additional ICs.
Device Security	Flash lock bits, debug disable, and permanent interface disable - enforces IP protection and prevents field reprogramming attacks.

Applications

Industrial HMI Panels

Smart Motor Drive Controllers

Use Scenario: Touch-based operator interface on factory-floor equipment with water/metal interference.

IC Role / Device Role / Timing Role: Primary MCU executing UI logic while CapSense CSD block handles real-time touch scanning and noise rejection.

Use Value: >5:1 SNR and SmartSense™ eliminate manual tuning; Deep Sleep wake-on-touch extends battery life in portable HMIs.

Use Scenario: Closed-loop BLDC motor control with safety-critical stop signaling and CAN network coordination.

IC Role / Device Role / Timing Role: Real-time controller managing PWM generation, current sensing via SAR ADC, and CAN 2.0B communication with PLC.

Use Value: Comparator-triggered TCPWM kill signals ensure sub-microsecond fault response; TTCAN guarantees deterministic message scheduling.

Secure IoT Edge Nodes

Capacitive Liquid Level Sensors

Use Scenario: Field-deployed environmental monitor requiring tamper-resistant firmware and encrypted data transmission.

IC Role / Device Role / Timing Role: Secure boot host with TRNG for key generation, flash protection, and disabled debug interfaces after provisioning.

Use Value: Prevents physical reprogramming attacks; ROM-based bootloader ensures verified firmware startup even after power loss.

Use Scenario: Non-contact liquid level detection in stainless-steel tanks with condensation and varying dielectric loads.

IC Role / Device Role / Timing Role: Capacitance-to-digital converter using CSD block with automatic baseline compensation and drift correction.

Use Value: Single-chip solution replaces discrete RC oscillator + ADC; SmartSense™ adapts to tank geometry and fluid properties without recalibration.

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable SoC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32G071KBT6	Arm Cortex-M0+, 64 MHz, 128 KB flash, no integrated CapSense or CAN FD; requires external touch controller.	Lacks hardware-accelerated capacitive sensing and TTCAN - suitable for cost-sensitive general-purpose control where touch is secondary.	Select when CAN FD or advanced CapSense are unnecessary and BOM cost reduction is prioritized over integration.
RP2040	Dual-core Arm Cortex-M0+, 133 MHz, 264 KB SRAM, no CAN, no analog peripherals, no device security features.	No analog front-end or industrial-grade security - intended for consumer-grade USB-connected devices, not safety-critical systems.	Choose only for non-industrial, USB-hosted applications where flash encryption and debug lockdown are not required.

Compared with STM32G071KBT6 and RP2040, CY8C4147AZI-S455 uniquely combines CapSense CSD, TTCAN, Deep Sleep analog operation, and hardware-enforced security - making it the only option among the three for touch-enabled, networked, and tamper-resistant industrial edge controllers.

Availability

CY8C4147AZI-S455 is available at Aetrix Electronics and suitable for industrial HMI panels, smart motor drive controllers, secure IoT edge nodes, and capacitive liquid level sensors requiring stable component supply, long-term lifecycle support, and qualified automotive/industrial grade sourcing.

Supply support for CY8C4147AZI-S455 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 acquired Cypress Semiconductor in 2020 and now owns the PSoC portfolio. Infineon is a global semiconductor leader focused on power systems, automotive, and industrial applications.

CY8C4147AZI-S455 belongs to the PSoC 4100S Plus product line, designed specifically for ultra-low-power, touch-enabled industrial control systems requiring integrated analog sensing, deterministic communication, and hardware-level security.

FAQ

What development tools are required to program CY8C4147AZI-S455?

PSoC Creator IDE (free, Windows-only) is the official tool for schematic-based hardware/firmware co-design, component configuration, and debug. It supports full SWD-based programming and real-time debugging via MiniProg3 or KitProg2. Arm GCC and Keil MDK are also supported for post-configuration firmware development, but require manual register-level initialization without PSoC Creator's automatic routing and component APIs.

Does CY8C4147AZI-S455 support true random number generation?

Yes - it includes a certified True Random Number Generator (TRNG) compliant with NIST SP 800-90B. The TRNG uses analog entropy sources and is accessible via PSoC Creator's Crypto component API. Output is used for secure key derivation in bootloader authentication and TLS stack implementations, with hardware isolation preventing software-side bias or prediction.

Can the CAN interface operate independently of the CPU during Deep Sleep?

No - the CAN block requires the HFCLK domain and cannot function in Deep Sleep mode. However, it can wake the CPU from Sleep mode via CAN interrupt. For true autonomous CAN messaging, use Sleep mode (not Deep Sleep), where CPU is halted but CAN, SCBs, and TCPWM remain active with ~100 µA typical current draw.

How is CapSense performance validated across production units?

Cypress/Infineon validates CapSense SNR (>5:1) and water tolerance per AEC-Q200 stress tests across wafer lots. Each device undergoes factory calibration of reference currents and IDAC gain settings stored in flash. SmartSense™ runtime calibration continuously adjusts thresholds using on-chip temperature and supply voltage monitors - eliminating unit-to-unit tuning in final assembly.

CY8C4147AZI-S455 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Package/Case:: 64-LQFP

Series:: PSOC™ 4 CY8C4100S Plus

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M0+

Core Size:: 32-Bit Single-Core

Speed:: 48MHz

Connectivity:: I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART

Peripherals:: Brown-out Detect/Reset, CapSense, LCD, POR, PWM, WDT

Number of I/O:: 54

Program Memory Size:: 128KB (128K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 16K x 8

Voltage - Supply (Vcc/Vdd):: 1.71V ~ 5.5V

Data Converters:: A/D 16x10b Slope, 16x12b SAR; D/A 2xIDAC

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

CY8C4147AZI-S455 FAQ

1.How can I place an order for CY8C4147AZI-S455 through Aetrix?

Please submit a Request for Quotation (RFQ) for CY8C4147AZI-S455 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for CY8C4147AZI-S455 reliable?

The price and inventory of CY8C4147AZI-S455 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147AZI-S455 is usually 5 days.

3.What payment methods are accepted for CY8C4147AZI-S455?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147AZI-S455 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY8C4147AZI-S455?

CY8C4147AZI-S455 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY8C4147AZI-S455 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for CY8C4147AZI-S455?

For technical support, including CY8C4147AZI-S455 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147AZI-S455 requirements.

6.How does Aetrix verify that CY8C4147AZI-S455 is sourced from the original manufacturer or authorized distributors?

All CY8C4147AZI-S455 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C4147AZI-S455 meets industry standards.

7.What is the process for return or replacement of CY8C4147AZI-S455?

All CY8C4147AZI-S455 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147AZI-S455, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The CY8C4147AZI-S455 part is unused and in its original packaging.

Return procedure for CY8C4147AZI-S455:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…