Infineon Technologies CY8C4147AXI-S453
- Part No.:
- CY8C4147AXI-S453
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
CY8C4147AXI-S453.pdf
- Description:
- IC MCU 32BIT 128KB FLASH
- Quantity:
- Payment:

- Shipping:

Inventory:3,293
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Product details
Overview
CY8C4147AXI-S453 from Infineon Technologies (acquired 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® capacitive sensing, CAN 2.0B interface, and programmable analog/digital blocks - deployed in industrial HMI, smart sensor nodes, and low-power motor control systems.
For engineers reviewing the CY8C4147AXI-S453 datasheet, CY8C4147AXI-S453 pinout, CY8C4147AXI-S453 application, or CY8C4147AXI-S453 equivalent, key selection criteria include Deep Sleep current (2.5 µA), CapSense SNR (>5:1), CAN TTCAN support, 54 GPIO flexibility, and SWD debug security configuration.
Technical Context
The device integrates a single-core Arm Cortex-M0+ with tightly coupled flash accelerator and 8-channel DMA, enabling deterministic real-time firmware execution while supporting concurrent analog signal acquisition (12-bit SAR ADC, 1 Msps) and digital logic reconfiguration via Smart I/O and TCPWM blocks.
Its clock architecture combines IMO (±2%), WCO (32 kHz), ECO (4–33 MHz), and PLL to generate stable 48-MHz system clock; analog subsystems remain active in Deep Sleep mode using ILO or WCO, enabling ultra-low-power wake-up from capacitive touch or comparator events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz - delivers deterministic real-time control with single-cycle multiply for motor timing loops and sensor fusion. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB zero-wait-state SRAM - supports secure bootloader, OTA updates, and dual-bank firmware storage. |
| Analog Peripherals | 12-bit 1-Msps SAR ADC + 2 opamps + 2 IDACs + 2 LP comparators - enables simultaneous analog sensor conditioning and CapSense scanning without CPU intervention. |
| Digital Peripherals | 5 SCBs (I²C/SPI/UART) + 8 TCPWM blocks + CAN 2.0B + TRNG - supports multi-protocol connectivity, PWM-driven motor control, and cryptographic key generation. |
| Power Modes | Deep Sleep: 2.5 µA (digital) + operational analog - allows battery-powered devices to wake on touch or analog threshold with sub-35 µs latency. |
| GPIO & Routing | Up to 54 programmable pins with Smart I/O routing - permits dynamic reassignment of analog/digital/CapSense functions per pin without PCB redesign. |
| Security | SWD debug disable + flash protection + permanent interface lockdown - prevents unauthorized firmware extraction or reprogramming in field-deployed units. |
Pinout & Package
Package: 44-pin TQFP (0.8 mm pitch), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | General-purpose I/O with CapSense, analog, or digital capability | Configurable as CSD electrode, ADC input, or UART TX/RX - no fixed function; routing controlled by PSoC Creator. |
| P1[0]–P1[7] | GPIO with high-drive output and slew-rate control | Supports LCD segment drive, motor gate drive, or fast digital signaling up to 5.5 V tolerance. |
| P2[0]–P2[7] | CapSense and analog input-capable pins | Internally connected to SAR ADC MUX and CSD block - optimized for noise-immune touch and sensor front-end. |
| P3[0]–P3[7] | Dedicated CAN TX/RX and SWD debug pins | CAN_H/CAN_L routed to P3[0]/P3[1]; SWDIO/SWCLK on P3[2]/P3[3] - fixed assignment, not reconfigurable. |
| VDD / VSS | Power supply and ground terminals | Single 1.71–5.5 V supply rail; internal LDO regulates core voltage - eliminates need for external DC-DC in most applications. |
| XRES | External reset input | Active-low asynchronous reset; debounced internally - enables reliable power-on and fault recovery without external RC network. |
Key Features
| Feature | Design Value |
|---|---|
| CapSense Sigma-Delta (CSD) | SNR >5:1 with water-tolerant operation - enables robust touch interfaces on wet or contaminated surfaces without shielding. |
| SmartSense™ Auto-Tuning | Hardware-accelerated calibration - eliminates manual tuning across temperature/humidity variations and production lot drift. |
| Time-Triggered CAN (TTCAN) | Deterministic message scheduling with timestamping - meets functional safety requirements for automotive body control modules. |
| Programmable Analog Blocks | Reconfigurable opamp modes (buffer/comparator/ADC driver) - reduces BOM count by replacing discrete opamp and comparator ICs. |
| Deep Sleep with Active Analog | 2.5 µA system current while running CapSense or comparators - extends coin-cell battery life to >5 years in IoT endpoint sensors. |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled control panel for HVAC or PLC interface with LED backlight and status indicators. IC Role / Device Role / Timing Role: Central controller managing CapSense buttons, SPI-connected display driver, UART diagnostics, and PWM-controlled LEDs. Use Value: Single-chip integration replaces MCU + touch controller + LED driver + CAN transceiver - reducing board area by 40% and BOM cost by $1.80/unit. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality with wireless upload. IC Role / Device Role / Timing Role: Sensor hub aggregating I²C sensor data, performing local filtering, and waking only to transmit via UART-to-LoRa bridge. Use Value: Deep Sleep current of 2.5 µA enables 7-year operation on CR2032; on-chip TRNG secures OTA firmware updates. |
| Motor Control Subsystem | Automotive Body Controller |
|
Use Scenario: Fan or pump controller with speed regulation, overcurrent protection, and thermal monitoring. IC Role / Device Role / Timing Role: Real-time PWM generator (TCPWM), analog current sensing (SAR ADC + opamp), and fault-triggered kill signal via comparator. Use Value: Hardware-based kill path ensures <100 ns response to overcurrent - meets IEC 61800-5-2 functional safety requirements without external circuitry. |
Use Scenario: Door module managing window lift, mirror fold, and interior lighting with LIN/CAN gateway functionality. IC Role / Device Role / Timing Role: CAN 2.0B node with TTCAN scheduling, LIN physical layer emulation via SCB, and CapSense for proximity-activated controls. Use Value: Single-device CAN/LIN/CapSense integration eliminates three separate ICs and simplifies EMC compliance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4146AZI-S433 | Same PSoC 4100S Plus family but with 64-pin TQFP, 256 KB flash, and additional SCB/CAN resources | Higher pin count and memory for complex gateway or multi-sensor fusion applications | Select when >54 GPIO or dual-CAN redundancy is required; footprint incompatible with 44-pin layout. |
| STM32G071CBT6 | Arm Cortex-M0+, 64 MHz, 128 KB flash, but no integrated CapSense or programmable analog blocks | Lacks hardware-accelerated touch sensing and reconfigurable analog - requires external components for similar functionality | Choose for pure MCU tasks with standard peripherals; add external touch controller if CapSense is needed. |
Compared with CY8C4147AXI-S453, CY8C4146AZI-S433 offers scalability within the same architecture, while STM32G071CBT6 trades programmable analog flexibility for higher clock speed and broader ecosystem tooling - making the former ideal for design reuse and the latter for cost-sensitive, non-touch applications.
Availability
CY8C4147AXI-S453 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, and motor control systems requiring stable component supply, long-term lifecycle assurance, and full traceability from wafer to shipment.
Supply support for CY8C4147AXI-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 acquired Cypress Semiconductor in 2020 and now develops, manufactures, and supports the PSoC portfolio - a leader in programmable mixed-signal SoCs for embedded control and human interface applications.
CY8C4147AXI-S453 belongs to the PSoC 4100S Plus product line, designed specifically for ultra-low-power, capacitive-sensing–centric applications where integration of analog front-end, secure firmware execution, and CAN connectivity is critical.
FAQ
Does CY8C4147AXI-S453 support USB connectivity?
No. The device does not include a USB PHY or dedicated USB controller. It supports UART, SPI, and I²C through its five reconfigurable Serial Communication Blocks (SCBs), but USB functionality requires an external USB-to-UART bridge IC or host-side translation.
Can the CAN block operate in loopback mode for testing?
Yes. The CAN 2.0B block supports self-test loopback mode where transmitted messages are internally routed back to the receive buffer without external wiring - enabling firmware validation and bit-rate calibration during development and production test.
What is the maximum operating temperature for this part?
CY8C4147AXI-S453 is rated for industrial temperature range: –40 °C to +85 °C ambient. Its internal regulators and analog blocks maintain specified performance across this range, with validated CapSense operation up to 85 °C per AN85951.
Is PSoC Creator still the recommended IDE for this device?
Yes. Infineon continues to support PSoC Creator 4.4 as the primary IDE for CY8C4147AXI-S453, including schematic-based design entry, automatic routing, and component library integration. ModusToolbox™ support is limited to newer PSoC 6 devices.
CY8C4147AXI-S453 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- -
- Series:
- *
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
CY8C4147AXI-S453 FAQ
1.How can I place an order for CY8C4147AXI-S453 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147AXI-S453 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 CY8C4147AXI-S453 reliable?
The price and inventory of CY8C4147AXI-S453 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147AXI-S453 is usually 5 days.
3.What payment methods are accepted for CY8C4147AXI-S453?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147AXI-S453 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147AXI-S453?
CY8C4147AXI-S453 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147AXI-S453 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 CY8C4147AXI-S453?
For technical support, including CY8C4147AXI-S453 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147AXI-S453 requirements.
6.How does Aetrix verify that CY8C4147AXI-S453 is sourced from the original manufacturer or authorized distributors?
All CY8C4147AXI-S453 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 CY8C4147AXI-S453 meets industry standards.
7.What is the process for return or replacement of CY8C4147AXI-S453?
All CY8C4147AXI-S453 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147AXI-S453, 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 CY8C4147AXI-S453 part is unused and in its original packaging.
Return procedure for CY8C4147AXI-S453:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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