My Inquiry
My Account
Infineon Technologies CY8C4146AXI-S445
- Part No.:
- CY8C4146AXI-S445
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4146AXI-S445.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,799
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4146AXI-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 targets embedded human-interface, motor control, and industrial sensing applications requiring mixed-signal reconfigurability and low-power operation down to 2.5 µA in Deep Sleep.
For engineers reviewing the CY8C4146AXI-S445 datasheet, CY8C4146AXI-S445 pinout, CY8C4146AXI-S445 application, or CY8C4146AXI-S445 equivalent, key selection criteria include its 44-pin TQFP package, 12-bit 1-Msps SAR ADC with sequencer, dual opamps operable in Deep Sleep, CAN 2.0B block with TTCAN support, and CapSense SNR >5:1 with SmartSense auto-tuning.
Technical Context
The device integrates a tightly coupled MCU subsystem with an AHB-Lite interconnect, supporting concurrent analog and digital peripheral operation via a high-speed I/O matrix and Smart I/O routing. Its clock architecture combines IMO (±2%), ILO (32 kHz), WCO, ECO (4–33 MHz), and PLL to generate stable 48-MHz HFCLK with glitch-free switching and fractional/integer dividers for precise peripheral timing.
Analog functionality centers on two reconfigurable opamps (buffering, comparator, DAC drive), a 12-bit SAR ADC with differential input and channel sequencing, and a dedicated capacitance-sensing block enabling single-slope 10-bit conversion. Digital resources include five SCBs (I²C/SPI/UART), eight TCPWM blocks with quadrature decode and kill-signal triggering, and programmable logic blocks for Boolean port-level operations.
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 / SRAM | 128 KB flash with Read Accelerator; 16 KB zero-wait-state SRAM - supports complex firmware and data buffering without performance penalty. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, hardware sequencer with averaging - delivers high-resolution sensor acquisition with noise suppression. |
| CapSense | Sigma-Delta CSD with SNR >5:1 and water tolerance - enables robust touch interfaces in humid or wet environments. |
| CAN Interface | CAN 2.0B with Time-Triggered CAN (TTCAN) support - provides deterministic, fault-tolerant communication for industrial and automotive subsystems. |
| Power Modes | Deep Sleep current: 2.5 µA with opamps active - sustains analog monitoring while minimizing energy consumption in battery-powered systems. |
| GPIO | Up to 54 programmable pins; any pin supports CapSense, analog, or digital functions - simplifies PCB layout and enables flexible signal routing. |
Pinout & Package
Package: 44-pin TQFP (0.8 mm pitch), RoHS-compliant, body size 10 mm × 10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | 1.71–5.5 V main supply; powers CPU, flash, SRAM, and digital peripherals. |
| VSS | Digital ground | Reference return path for digital logic and I/O buffers. |
| XRES | External reset input | Active-low asynchronous reset; overrides internal POR and allows system-level recovery. |
| SWDIO / SWDCK | Serial Wire Debug interface | Two-wire JTAG-compatible debug port for programming, tracing, and full-chip debugging in production systems. |
| P0[0]–P0[7] | General-purpose I/O bank | Supports CapSense, analog input/output, UART, SPI, or GPIO with programmable drive strength and slew rate. |
| CAN_TX / CAN_RX | CAN physical layer interface | Dedicated differential pair for CAN bus communication; requires external transceiver for bus coupling. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CapSense calibration eliminates manual tuning and maintains stable touch response across temperature/humidity drift. |
| Programmable Analog Blocks | Two opamps configurable as buffer, comparator, or IDAC driver - enable sensor signal conditioning without external components. |
| True Random Number Generator (TRNG) | Dedicated entropy source for cryptographic key generation - meets NIST SP 800-90B requirements for secure boot and firmware updates. |
| Device Security | Flash protection, debug disable, and permanent interface lockdown - prevents unauthorized access, reverse engineering, or malicious reprogramming. |
| Flexible Clock Architecture | Multiple internal/external sources with fractional dividers - ensures precise timing for mixed-signal sampling, PWM generation, and communication baud rates. |
Applications
| Industrial HMI Panels | Smart Motor Control Units |
|---|---|
Use Scenario: Touch-enabled operator interface on factory HMIs exposed to dust, moisture, and EMI. IC Role / Device Role / Timing Role: Primary controller handling CapSense button/slider inputs, CAN-based PLC communication, and local LED/display control. Use Value: Sigma-Delta CapSense with >5:1 SNR and water tolerance ensures reliable touch detection; CAN 2.0B enables deterministic command/response with field devices. | Use Scenario: Compact BLDC motor drive with position feedback, current sensing, and safety monitoring. IC Role / Device Role / Timing Role: Real-time motor commutation controller using TCPWM blocks with quadrature decode and comparator-triggered kill signals. Use Value: Eight TCPWM blocks support center-aligned PWM generation and hardware-based fault shutdown (<35 µs wake-up from Deep Sleep for emergency stop). |
| Medical Sensor Nodes | Energy Monitoring Gateways |
Use Scenario: Battery-powered wearable sensor hub aggregating ECG, temperature, and motion data. IC Role / Device Role / Timing Role: Low-power data acquisition node with SAR ADC, opamp-based front-end, and BLE-ready UART/I²C connectivity. Use Value: 2.5 µA Deep Sleep with active opamps enables continuous analog monitoring; 128 KB flash stores firmware + sensor logs for offline analysis. | Use Scenario: DIN-rail mounted smart meter gateway collecting submeter data via RS-485 and reporting over cellular/LTE. IC Role / Device Role / Timing Role: Protocol translation bridge between Modbus RTU (SCB UART) and cloud uplink (SCB SPI to modem), with CAN for local grid node coordination. Use Value: Five reconfigurable SCBs allow simultaneous RS-485, SPI modem, and CAN interfaces without external logic; TRNG secures OTA firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4147AZI-S475 | 64-pin TQFP, 256 KB flash, 32 KB SRAM, same core/peripherals - higher memory and I/O count. | Required for designs needing >54 GPIOs or larger firmware images with multiple CapSense widgets and BLE stack integration. | Select when scaling beyond 44-pin footprint or requiring extended memory for OTA updates and logging. |
| STM32G474RET6 | Arm Cortex-M4F, 512 KB flash, 128 KB SRAM, no integrated CapSense - includes FPU and advanced timers but lacks hardware touch engine. | Suitable for math-intensive control (e.g., field-oriented motor control) where external touch ICs or resistive overlays are acceptable. | Choose when floating-point computation or higher SRAM bandwidth outweighs need for integrated capacitive sensing. |
Compared with CY8C4147AZI-S475 and STM32G474RET6, CY8C4146AXI-S445 uniquely balances compact 44-pin packaging, hardware-accelerated CapSense, CAN+TTCAN, and ultra-low Deep Sleep current - making it optimal for space-constrained, touch-centric industrial edge nodes where analog integration reduces BOM cost and design risk.
Availability
CY8C4146AXI-S445 is available at Aetrix Electronics and suitable for industrial HMI panels, smart motor control units, and medical sensor nodes requiring stable component supply, long-term lifecycle assurance, and qualified traceable sourcing.
Supply support for CY8C4146AXI-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 develops, manufactures, and supports the PSoC family of programmable SoCs for embedded applications.
The PSoC 4100S Plus product line was designed specifically for cost-sensitive, low-power human-interface and industrial control applications requiring integrated analog sensing, robust communication, and hardware security - all in a single chip.
FAQ
What development tools are required to program and debug CY8C4146AXI-S445?
PSoC Creator IDE (free, Windows-only) is the official development environment, providing schematic-based hardware design, automatic routing, and API-driven firmware generation. Programming and debugging use the standard Arm Serial-Wire Debug (SWD) interface with MiniProg3 or KitProg2 programmers. Third-party Arm tools (Keil MDK, IAR EWARM) are supported after project export.
Does CY8C4146AXI-S445 support USB connectivity?
No, CY8C4146AXI-S445 does not include a USB PHY or USB controller. It supports UART, SPI, and I²C through its five reconfigurable Serial Communication Blocks (SCBs). For USB host/device functionality, external USB-to-UART or USB-to-SPI bridge ICs (e.g., CP2102, FT232H) must be used in conjunction with the device's SCB interfaces.
Can the CapSense functionality operate independently of the CPU core?
Yes. CapSense sigma-delta sensing runs autonomously using dedicated hardware blocks (CSD). The CPU can remain in Deep Sleep while CapSense continuously scans buttons or sliders, generating interrupts only upon touch detection. This enables <2.5 µA system-level standby current with responsive wake-up.
Is the CAN block compliant with ISO 11898-1:2015?
Yes, the CAN 2.0B block implements full ISO 11898-1:2015 compliance, including bit timing, arbitration, error framing, and TTCAN message scheduling. It supports both standard (11-bit) and extended (29-bit) identifiers, loopback mode for self-test, and programmable bit-rate up to 1 Mbps - verified in the PSoC 4100S Plus TRM and validated per Infineon's automotive qualification reports.
CY8C4146AXI-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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
CY8C4146AXI-S445 FAQ
1.How can I place an order for CY8C4146AXI-S445 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AXI-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 CY8C4146AXI-S445 reliable?
The price and inventory of CY8C4146AXI-S445 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AXI-S445 is usually 5 days.
3.What payment methods are accepted for CY8C4146AXI-S445?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AXI-S445 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AXI-S445?
CY8C4146AXI-S445 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AXI-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 CY8C4146AXI-S445?
For technical support, including CY8C4146AXI-S445 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AXI-S445 requirements.
6.How does Aetrix verify that CY8C4146AXI-S445 is sourced from the original manufacturer or authorized distributors?
All CY8C4146AXI-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 CY8C4146AXI-S445 meets industry standards.
7.What is the process for return or replacement of CY8C4146AXI-S445?
All CY8C4146AXI-S445 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AXI-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 CY8C4146AXI-S445 part is unused and in its original packaging.
Return procedure for CY8C4146AXI-S445:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4146AXI-S445 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
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.…
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…
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…
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…
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…
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…
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…
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 …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
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…
