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Infineon Technologies CY8C4146AXI-S455
- Part No.:
- CY8C4146AXI-S455
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4146AXI-S455.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:888
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Product details
Overview
CY8C4146AXI-S455 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. It supports deep-sleep operation at 2.5 µA with active opamps and SAR ADC, targeting embedded human-interface and industrial control applications requiring mixed-signal reconfigurability.
For engineers reviewing the CY8C4146AXI-S455 datasheet, CY8C4146AXI-S455 pinout, CY8C4146AXI-S455 application, or CY8C4146AXI-S455 equivalent, key selection criteria include its 54-GPIO count, 12-bit 1-Msps SAR ADC with sequencer, dual opamp support in Deep Sleep, CAN 2.0B compliance, and SmartSense™ auto-tuning for robust touch sensing in noisy or wet environments.
Technical Context
The device integrates an Arm Cortex-M0+ core with tightly coupled flash (two wait states at 48 MHz) and zero-wait-state SRAM, enabling deterministic real-time execution. Its clock architecture combines IMO (±2%), ILO (32 kHz), WCO, ECO (4–33 MHz), and PLL to generate precise system and peripheral clocks with glitch-free switching.
Analog subsystem includes two reconfigurable opamps (supporting comparator, buffer, and IDAC modes), a 12-bit SAR ADC with differential input and hardware averaging, and a dedicated capacitance-sensing block for sigma-delta CapSense. Digital resources comprise five SCBs (reconfigurable as I²C/SPI/UART), eight TCPWM blocks with quadrature decode and kill-signal triggering, and programmable logic for Boolean port-level operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz with single-cycle multiply - enables deterministic real-time firmware execution and efficient signal processing. |
| Flash Memory | 128 KB with Read Accelerator - delivers 85% of SRAM-speed access for tight loops and interrupt latency-critical code. |
| SRAM | 16 KB, zero wait-state - supports large buffers for communication stacks or sensor fusion without performance penalty. |
| SAR ADC | 12-bit, 1-Msps, with channel sequencer and signal averaging - allows synchronized multi-channel acquisition and noise reduction in industrial monitoring. |
| CapSense | Cypress CapSense Sigma-Delta (CSD) with >5:1 SNR and water tolerance - enables reliable touch buttons/sliders on consumer or automotive HMI surfaces exposed to moisture. |
| CAN Interface | CAN 2.0B with Time-Triggered CAN (TTCAN) support - provides deterministic message scheduling for safety-critical vehicle subsystems or industrial fieldbus nodes. |
| Power Modes | Deep Sleep at 2.5 µA with opamps and comparators active - sustains analog wake-up detection while minimizing battery drain in portable equipment. |
Pinout & Package
Package: 44-pin TQFP (0.8 mm pitch), RoHS-compliant, surface-mount. Dimensions: 10 mm × 10 mm × 1.4 mm. Thermal pad not present. Compatible with standard reflow profiles per IPC/JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O; requires local 100-nF decoupling. |
| VSS | Digital ground reference | Common return path for digital logic and CPU; must be low-impedance and separated from analog ground where possible. |
| P0[0]–P0[7] | Programmable GPIO bank 0 | Support CapSense, analog input/output, SCB, TCPWM, or LCD drive; configurable slew rate and drive strength. |
| P1[0]–P1[7] | Programmable GPIO bank 1 | Same functionality as P0; includes dedicated CAN_TX and CAN_RX pins on P1[2]/P1[3]. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Support 4–33 MHz ECO; enable high-precision timing for CAN bit-rate accuracy or USB-like synchronization. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug interface for programming, breakpoint setting, and full-chip runtime inspection without JTAG overhead. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CapSense calibration eliminates manual tuning and maintains stable button response across temperature/humidity drift. |
| Programmable Analog Blocks | Two opamps operate in Deep Sleep mode and support reconfigurable roles (buffer, comparator, transimpedance) - reduces BOM count and PCB area. |
| Reconfigurable SCBs | Five Serial Communication Blocks can be independently assigned as I²C master/slave, SPI master/slave, or UART - simplifies protocol migration during development. |
| TCPWM Kill Signal | Hardware-triggered immediate PWM shutdown via comparator output - enables safe motor control fault response under overcurrent or overtemperature conditions. |
| Device Security | Debug disable, flash protection, and permanent interface lockdown prevent unauthorized firmware extraction or reprogramming in deployed systems. |
Applications
| Industrial HMI Panel | Automotive Body Control Module |
|---|---|
Use Scenario: Touch-enabled control panel for HVAC, lighting, and window actuation in factory automation or commercial buildings. IC Role / Device Role / Timing Role: Primary MCU managing CapSense inputs, CAN bus communication with PLCs, and PWM-driven LED indicators. Use Value: Single-chip integration eliminates external touch controller and CAN transceiver, reducing bill-of-materials and board space by 35% versus discrete solution. | Use Scenario: Centralized body electronics node controlling door locks, mirrors, and interior lighting in 12-V automotive platforms. IC Role / Device Role / Timing Role: CAN 2.0B endpoint with TTCAN scheduling for time-synchronized actuator commands and diagnostic reporting. Use Value: Deep Sleep current of 2.5 µA enables always-on wake-up capability via door handle touch sensors without draining battery during vehicle standby. |
| Portable Medical Sensor Hub | Smart Home Appliance Controller |
Use Scenario: Battery-powered wearable or bedside unit aggregating ECG, temperature, and motion data for remote patient monitoring. IC Role / Device Role / Timing Role: Low-power MCU with SAR ADC for analog sensor front-end, TRNG for secure BLE pairing, and opamp-based biopotential amplification. Use Value: On-chip opamps configured as instrumentation amplifiers reduce external component count and improve common-mode rejection ratio (CMRR) stability over temperature. | Use Scenario: Washing machine or dishwasher main controller handling user interface, motor phase control, and water-level sensing. IC Role / Device Role / Timing Role: Real-time motor control via TCPWM with quadrature decoding for brushless motor commutation and CapSense for waterproof control panel. Use Value: Integrated CapSense CSD engine achieves >5:1 SNR in humid environments, eliminating mechanical buttons prone to seal failure and corrosion. |
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 | Higher flash (256 KB) and SRAM (32 KB); same package and peripheral set; no CAN block. | Lacks CAN 2.0B interface; better suited for complex GUI or audio processing where CAN is unnecessary. | Select when application requires larger firmware footprint and no vehicle network connectivity. |
| STM32G071CBT6 | Arm Cortex-M0+, 64 MHz, 128 KB flash, 36 KB SRAM; no integrated CapSense or programmable analog blocks. | Requires external touch controller and analog signal conditioning ICs for equivalent CapSense/SAR functionality. | Select when leveraging ST's ecosystem and external analog components are acceptable for cost or qualification reasons. |
Compared with CY8C4146AXI-S455, CY8C4147AZI-S475 trades CAN capability for doubled memory, while STM32G071CBT6 offers higher CPU speed but demands external circuitry to match PSoC's integrated analog flexibility and touch performance - making CY8C4146AXI-S455 optimal for compact, low-power, touch-and-CAN designs.
Availability
CY8C4146AXI-S455 is available at Aetrix Electronics and suitable for industrial HMI panels, automotive body control modules, and portable medical sensor hubs requiring stable component supply, long-term lifecycle assurance, and qualified production lots.
Supply support for CY8C4146AXI-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 develops, manufactures, and supports the PSoC family. Infineon is a global semiconductor leader focused on power systems, automotive, and IoT solutions.
This device belongs to the PSoC 4100S Plus product line, designed specifically for cost-sensitive, low-power embedded applications demanding integrated capacitive sensing, robust communication (CAN/I²C/SPI), and field-programmable analog/digital logic without external glue logic.
FAQ
What development tools are required to program and debug CY8C4146AXI-S455?
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 two-pin SWD interface compatible with MiniProg3, KitProg2/3, and third-party Arm SWD tools like Segger J-Link.
Does CY8C4146AXI-S455 support true hardware random number generation?
Yes. It includes a certified True Random Number Generator (TRNG) based on analog entropy sources, delivering NIST SP 800-90B compliant random bits for cryptographic key generation, secure boot, and TLS session establishment without software entropy polling.
Can the CapSense functionality operate reliably in wet or conductive environments?
Yes. The CapSense Sigma-Delta (CSD) engine achieves >5:1 signal-to-noise ratio and includes hardware-based water tolerance algorithms. Combined with SmartSense™ auto-tuning, it maintains stable button detection even with surface moisture or saline contamination - validated per IEC 61000-4-6 and IPX7 test conditions.
Is CAN bus communication supported at full ISO 11898-2 compliance?
No. CY8C4146AXI-S455 integrates a CAN 2.0B controller only. A discrete CAN transceiver (e.g., TJA1042, SN65HVD230) is required for physical layer compliance with ISO 11898-2. The controller supports bit rates up to 1 Mbps and TTCAN scheduling but does not include integrated PHY drivers or fault protection.
CY8C4146AXI-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:
- 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-S455 FAQ
1.How can I place an order for CY8C4146AXI-S455 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AXI-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 CY8C4146AXI-S455 reliable?
The price and inventory of CY8C4146AXI-S455 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AXI-S455 is usually 5 days.
3.What payment methods are accepted for CY8C4146AXI-S455?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AXI-S455 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AXI-S455?
CY8C4146AXI-S455 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AXI-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 CY8C4146AXI-S455?
For technical support, including CY8C4146AXI-S455 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AXI-S455 requirements.
6.How does Aetrix verify that CY8C4146AXI-S455 is sourced from the original manufacturer or authorized distributors?
All CY8C4146AXI-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 CY8C4146AXI-S455 meets industry standards.
7.What is the process for return or replacement of CY8C4146AXI-S455?
All CY8C4146AXI-S455 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AXI-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 CY8C4146AXI-S455 part is unused and in its original packaging.
Return procedure for CY8C4146AXI-S455:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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