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Infineon Technologies CY8C4147AXI-S445
- Part No.:
- CY8C4147AXI-S445
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4147AXI-S445.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:780
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Product details
Overview
CY8C4147AXI-S445 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 sigma-delta capacitive sensing, CAN 2.0B interface, and programmable analog/digital blocks. It operates from 1.71–5.5 V and supports Deep Sleep mode with 2.5 µA system current while maintaining opamp and comparator functionality - ideal for low-power industrial HMI and smart sensor nodes.
For engineers reviewing the CY8C4147AXI-S445 datasheet, CY8C4147AXI-S445 pinout, CY8C4147AXI-S445 application, or CY8C4147AXI-S445 equivalent, key selection criteria include its integrated CAN 2.0B block with TTCAN support, 12-bit 1-Msps SAR ADC with sequencer and averaging, dual opamps operational in Deep Sleep, SmartSense™ auto-tuning for CapSense, and 54 GPIOs with configurable drive modes and LCD segment capability.
Technical Context
The device integrates an Arm Cortex-M0+ core with tightly coupled flash (128 KB, Read Accelerator) and SRAM (16 KB, zero wait-state), supported by an 8-channel DMA engine and NVIC with eight interrupt inputs plus Wakeup Interrupt Controller (WIC). Clocking includes IMO (±2%), ILO (32 kHz), WCO, ECO (4–33 MHz), and PLL for 48-MHz generation.
Analog subsystem comprises two reconfigurable opamps (Deep Sleep-capable), 12-bit SAR ADC (differential/single-ended, channel sequencer, signal averaging), two IDACs, two low-power comparators, and CapSense CSD block delivering >5:1 SNR and water tolerance. Digital resources include five SCBs (I²C/SPI/UART), eight TCPWM blocks (center-aligned, edge, pseudo-random, quadrature decode), and programmable logic blocks with Smart I/O routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz, single-cycle multiply - enables deterministic real-time control with minimal latency. |
| Flash Memory | 128 KB with Read Accelerator - delivers 85% of SRAM-speed access for efficient code execution at full clock rate. |
| SRAM | 16 KB, zero wait-state - supports high-bandwidth data buffering and real-time firmware stacks without timing penalties. |
| SAR ADC | 12-bit, 1-Msps, with channel sequencer and signal averaging - enables precise multi-sensor acquisition with noise reduction in embedded monitoring. |
| CapSense CSD | Sigma-Delta architecture, >5:1 SNR, water-tolerant - provides robust touch interface on curved or sealed surfaces without shielding. |
| CAN Interface | CAN 2.0B with Time-Triggered CAN (TTCAN) support - meets deterministic communication requirements in industrial automation and motor control networks. |
| Low-Power Modes | Deep Sleep at 2.5 µA with opamps/comparators active - sustains analog monitoring and wake-on-event capability in battery-powered endpoints. |
Pinout & Package
Package: 44-pin TQFP (0.8-mm pitch), RoHS-compliant, lead-free, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Primary 1.71–5.5 V supply rail powering digital and analog subsystems; requires local decoupling. |
| VSS | Ground reference | Digital and analog ground return; separate AGND/DGND routing recommended for precision analog operation. |
| P0[0]–P0[7] | GPIO port 0 | Programmable pins supporting CapSense, analog input/output, digital logic, LCD segment drive, and SCB functions. |
| P1[0]–P1[7] | GPIO port 1 | Same flexibility as Port 0; includes dedicated CAN_TX and CAN_RX on P1[2]/P1[3] for hardware CAN interface. |
| SWDCLK / SWDIO | Debug interface | Two-wire Serial Wire Debug (SWD) signals enabling full on-chip debug, flash programming, and trace without JTAG overhead. |
| XTAL_IN / XTAL_OUT | External crystal oscillator | Connects to 4–33 MHz crystal for ECO; enables precise timing and PLL-based clock synthesis for CAN and USB-compatible baud rates. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CapSense calibration eliminates manual tuning and compensates for environmental drift in production units. |
| Programmable Analog Blocks | Two opamps configurable as buffers, comparators, or ADC front-ends - retain functionality in Deep Sleep for always-on sensing. |
| Flexible SCBs | Five independent Serial Communication Blocks each reconfigurable as I²C, SPI, or UART - reduces BOM count and PCB footprint vs. discrete peripherals. |
| TCPWM Quadrature Decode | Hardware quadrature decoding with index pulse detection - offloads CPU for motor position feedback in motion control applications. |
| Device Security | Flash protection, debug disable, and permanent interface lockdown - prevents firmware extraction and unauthorized reprogramming in field-deployed devices. |
Applications
| Industrial HMI Panels | Smart Motor Control Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface on factory floor equipment with glove operation and liquid exposure. IC Role / Device Role / Timing Role: Primary MCU executing UI logic, driving segmented LCD, and processing CapSense inputs via CSD block with >5:1 SNR. Use Value: Water-tolerant touch eliminates mechanical buttons; SmartSense™ ensures consistent response across temperature and humidity shifts. | Use Scenario: Distributed motor controller in conveyor system requiring position feedback, fault signaling, and network coordination. IC Role / Device Role / Timing Role: Real-time motion controller using TCPWM quadrature decode, CAN 2.0B for networked command/response, and opamp-based current sensing. Use Value: Integrated CAN + analog sensing + PWM eliminates external transceivers and signal-conditioning ICs, reducing board area and bill-of-materials cost. |
| Low-Power Sensor Gateways | Secure IoT Edge Devices |
Use Scenario: Battery-powered environmental sensor node aggregating temperature, humidity, and occupancy data for wireless uplink. IC Role / Device Role / Timing Role: System controller managing Deep Sleep wake cycles, SAR ADC sampling, and CapSense-based occupancy detection. Use Value: 2.5 µA Deep Sleep with active opamps enables multi-year battery life while maintaining analog readiness for event-triggered wake-up. | Use Scenario: Tamper-resistant asset tracker deployed in untrusted environments requiring firmware integrity and secure key generation. IC Role / Device Role / Timing Role: Secure root-of-trust MCU with TRNG, flash protection, and permanently disabled debug interfaces after provisioning. Use Value: On-chip TRNG feeds cryptographic libraries; device security lockdown prevents physical probing or flash dump attacks post-deployment. |
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, 128 KB flash, 16 KB SRAM, and no CAN block. | Lacks integrated CAN 2.0B interface - unsuitable for deterministic industrial networking; better for pure CapSense + sensor fusion designs. | Select when CAN is unnecessary and higher pin count or additional GPIOs are required for complex I/O routing. |
| STM32L476RG | Arm Cortex-M4F @ 80 MHz, 1 MB flash, 128 KB SRAM, no integrated CapSense or programmable analog blocks. | Requires external touch controller and analog signal chain; superior floating-point performance but higher BOM and layout complexity for capacitive HMI. | Select when advanced DSP or floating-point computation dominates over integrated analog/touch functionality. |
Compared with CY8C4146AZI-S433 and STM32L476RG, CY8C4147AXI-S445 uniquely combines CAN 2.0B, hardware-accelerated CapSense, and Deep Sleep–capable analog blocks in a single die - reducing system-level integration effort for industrial HMI and distributed control nodes where mixed-signal programmability and deterministic networking are co-required.
Availability
CY8C4147AXI-S445 is available at Aetrix Electronics and suitable for industrial HMI panels, smart motor control nodes, low-power sensor gateways, and secure IoT edge devices requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.
Supply support for CY8C4147AXI-S445 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.
This device belongs to the PSoC 4100S Plus product line, engineered specifically for cost-sensitive, low-power embedded systems requiring integrated capacitive sensing, deterministic communication (CAN), and flexible analog/digital reconfiguration - targeting industrial human-machine interfaces and intelligent edge nodes.
FAQ
Does CY8C4147AXI-S445 support hardware-based CAN FD?
No. The integrated CAN block implements CAN 2.0B protocol only, with support for Time-Triggered CAN (TTCAN) for deterministic scheduling. CAN FD frame format and higher data rates are not supported. For CAN FD, consider Infineon's TRAVEO™ T2G or AURIX™ families.
Can all 54 GPIOs be used simultaneously for CapSense?
No. While any GPIO can be assigned to CapSense, the CSD block supports up to 32 sensing electrodes per device. Simultaneous use of all 54 pins for CapSense is electrically and logically unsupported; electrode count is constrained by internal CSD hardware resources and scan time limits.
Is the 12-bit SAR ADC capable of true differential measurements?
Yes. The SAR ADC supports true differential input mode using dedicated INP/INN pairs (e.g., P0[0]/P0[1]), providing common-mode rejection and improved noise immunity. Differential resolution remains 12 bits with full-scale range referenced to VREF, and channel sequencing with averaging is fully supported in this mode.
What debug interfaces are available, and can they be permanently disabled?
CY8C4147AXI-S445 features Serial Wire Debug (SWD) with four breakpoint and two watchpoint comparators. Debug can be disabled in firmware; once disabled and flash protection enabled, re-enabling requires full chip erase. All debug/test interfaces can be permanently locked via device security mode - disabling SWD, test access ports, and programming interfaces irreversibly.
CY8C4147AXI-S445 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:
CY8C4147AXI-S445 FAQ
1.How can I place an order for CY8C4147AXI-S445 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147AXI-S445 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-S445 reliable?
The price and inventory of CY8C4147AXI-S445 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147AXI-S445 is usually 5 days.
3.What payment methods are accepted for CY8C4147AXI-S445?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147AXI-S445 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147AXI-S445?
CY8C4147AXI-S445 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147AXI-S445 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-S445?
For technical support, including CY8C4147AXI-S445 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147AXI-S445 requirements.
6.How does Aetrix verify that CY8C4147AXI-S445 is sourced from the original manufacturer or authorized distributors?
All CY8C4147AXI-S445 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-S445 meets industry standards.
7.What is the process for return or replacement of CY8C4147AXI-S445?
All CY8C4147AXI-S445 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147AXI-S445, 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-S445 part is unused and in its original packaging.
Return procedure for CY8C4147AXI-S445:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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