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Infineon Technologies CY8C4146LQA-S263
- Part No.:
- CY8C4146LQA-S263
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQA-S263.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,386
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Product details
Overview
CY8C4146LQA-S263 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Plus microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive touch-sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (SCB), eight TCPWM modules, a CAN 2.0B controller with TTCAN support, and operates from 1.71 V to 5.5 V. Used in automotive body control modules for proximity-sensing door handles and interior touch panels.
For engineers reviewing the CY8C4146LQA-S263 datasheet, CY8C4146LQA-S263 pinout, CY8C4146LQA-S263 application, or CY8C4146LQA-S263 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-die CAPSENSE™ SNR >5:1, CAN 2.0B + TTCAN compliance, Deep Sleep current ≤2.5 µA, and GPIO flexibility across 54 pins with programmable drive strength and slew rate.
Technical Context
This device implements a mixed-signal SoC architecture where analog and digital resources-including two continuous-time opamps, a 12-bit 1-Msps SAR ADC, and two low-power comparators-are fully reconfigurable via firmware and routed through a programmable interconnect matrix. The CAN block supports time-triggered operation with hardware synchronization to system clocks and integrates dedicated message RAM and filtering logic.
The CAPSENSE™ subsystem uses a capacitive sigma-delta (CSD) sensing engine with hardware-accelerated baseline tracking and noise rejection, enabling robust operation under wet conditions. All analog peripherals retain functionality in Deep Sleep mode, allowing wake-on-touch while maintaining sub-µA system power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - deterministic real-time execution with Thumb-2 instruction set and NVIC interrupt controller |
| Memory | 128 KB flash (with Read Accelerator) + 16 KB SRAM - enables secure boot, firmware updates, and real-time sensor buffering |
| Operating Voltage | 1.71 V to 5.5 V - supports direct connection to automotive battery rails (including cold-crank down to 1.71 V) |
| Temperature Range | Grade-S: –40°C to +105°C - qualified for under-hood and cabin-mounted automotive ECUs |
| CAN Interface | CAN 2.0B + TTCAN - provides deterministic message scheduling, timestamping, and synchronization for safety-critical networks |
| Capacitive Sensing | CAPSENSE™ CSD with SNR >5:1 and SmartSense auto-tuning - eliminates manual calibration and ensures reliable detection through glass or plastic overlays |
| Low-Power Mode | Deep Sleep with 2.5 µA system current and active analog - enables always-on touch wake-up without external supervisors |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O supply domains | Independent 1.71–5.5 V supplies per port group enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V analog sensors) |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | All 54 pins support CAPSENSE™, analog input/output, digital logic, or SCB/CAN functions - no fixed peripheral pinout |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Hardwired to internal CAN controller; require external high-speed transceiver (e.g., TJA1042) for bus connection |
| XTAL_IN / XTAL_OUT | External crystal oscillator input/output | Supports 4–33 MHz ECO for precise timing; required for CAN bit-rate accuracy and USB clock derivation |
| SWDCK / SWDIO | ARM Serial Wire Debug interface | Two-pin debug port for programming and real-time trace; compatible with MiniProg3 and industry-standard debug probes |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable analog blocks | Two opamps usable as buffers, comparators, or ADC front-ends - configurable in Deep Sleep with <1 µA quiescent current |
| Hardware CAPSENSE™ engine | CSD-based sensing with automatic baseline update and noise immunity - achieves >99% false-touch rejection in humid environments |
| Runtime-reconfigurable SCBs | Five serial blocks independently assignable as I²C/SPI/UART/LIN slave - eliminates need for external protocol translators |
| TTCAN support | Time-triggered communication with schedule tables and error confinement - meets ISO 11898-1:2015 requirements for ASIL-B systems |
| Smart I/O logic | Programmable Boolean logic on GPIO inputs/outputs - enables hardware-level signal conditioning (debounce, edge detection, pulse stretching) without CPU load |
Applications
| Automotive Door Handle Proximity Sensing | Body Control Module (BCM) Lighting Control |
|---|---|
Use Scenario: Capacitive proximity detection activates door unlock when user's hand approaches handle, even with gloves or moisture present. IC Role / Device Role / Timing Role: CY8C4146LQA-S263 serves as the primary touch-sensing and CAN gateway MCU, executing CAPSENSE™ acquisition and forwarding status via TTCAN. Use Value: Eliminates mechanical switches and external touch controllers; leverages on-die CSD SNR >5:1 and SmartSense to maintain reliability at ±10% humidity variation. | Use Scenario: PWM-controlled LED ambient lighting with adaptive brightness based on cabin light sensor input and vehicle speed. IC Role / Device Role / Timing Role: MCU executes closed-loop brightness control using eight TCPWM blocks for independent channel timing and SCB-based I²C communication to ambient light sensor. Use Value: Integrates sensing, processing, and actuation in one die - reduces BOM count by 3 components versus discrete MCU + PWM driver + I²C interface solution. |
| Electronic Parking Brake (EPB) Interface | Automotive HVAC Panel Touch Interface |
Use Scenario: Safe, redundant control of parking brake actuation via CAN command validation, motor driver enable, and position feedback monitoring. IC Role / Device Role / Timing Role: Acts as safety monitor and CAN interface node; validates commands from master ECU and drives isolated gate drivers via GPIO with hardware kill signals from TCPWM comparators. Use Value: Uses comparator-triggered TCPWM kill outputs to cut motor power within <100 ns - satisfies ISO 26262 ASIL-B fault response timing requirements. | Use Scenario: Multi-function climate control panel with slider, buttons, and status LEDs, all implemented via single-layer PCB with overlay. IC Role / Device Role / Timing Role: Primary touch controller and UI processor; runs CAPSENSE™ on 12+ electrodes and drives 8-segment LCD via GPIO-based segment drive capability. Use Value: Replaces dedicated touch IC + LCD driver + microcontroller with one AEC-Q100-qualified SoC - reduces layer count and improves EMC immunity via integrated routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144W | ARM Cortex-M4F core, higher performance (112 MHz), but lacks integrated CAPSENSE™ and requires external touch controller | Better suited for motor control or complex diagnostics; less optimal for cost-sensitive touch-centric nodes | Select when floating-point math or AUTOSAR OS integration is required over capacitive sensing integration |
| Renesas RL78/F14 | 16-bit RL78 core, lower power in HALT mode (0.25 µA), but no CAN FD or TTCAN; limited analog resources (no SAR ADC) | Targeted at simple relay/LED control; cannot replace CAPSENSE™ or TTCAN functionality directly | Select only for legacy 16-bit migration paths where CAN 2.0B and touch are handled externally |
Compared with NXP S32K144W and Renesas RL78/F14, CY8C4146LQA-S263 uniquely combines AEC-Q100 Grade-S qualification, on-die CAPSENSE™ with SmartSense, TTCAN, and full GPIO reconfigurability - making it optimal for integrated touch-and-communication automotive nodes where BOM reduction and design consolidation are critical.
Availability
CY8C4146LQA-S263 is available at Aetrix Electronics and suitable for automotive body electronics, interior human-machine interface (HMI) systems, and electronic control units requiring stable component supply under AEC-Q100 Grade-S conditions.
Supply support for CY8C4146LQA-S263 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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4146LQA-S263 belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive-grade capacitive touch HMI and distributed control nodes requiring functional safety support, low-power operation, and seamless integration of analog, digital, and communication resources.
FAQ
What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4146LQA-S263?
The CY8C4146LQA-S263 features a 48-MHz Arm® Cortex®-M0+ CPU, achieved via internal PLL multiplication from the 4–33 MHz external crystal oscillator or the ±2% internal main oscillator. This frequency is guaranteed across the full Grade-S temperature range (–40°C to +105°C) and 1.71–5.5 V supply range, with no derating required.
Does CY8C4146LQA-S263 support CAN FD or only classical CAN 2.0B?
CY8C4146LQA-S263 implements a CAN 2.0B controller with time-triggered CAN (TTCAN) extensions per ISO 11898-1:2015, but does not support CAN FD data rates or frame formats. It provides deterministic scheduling, hardware timestamping, and message RAM with filtering-sufficient for ASIL-B body control networks-but lacks the 64-byte payload and variable bit rate of CAN FD.
How many GPIO pins support CAPSENSE™ functionality, and what is the minimum electrode count supported?
All 54 GPIO pins on CY8C4146LQA-S263 can be configured for CAPSENSE™ CSD operation, with no dedicated pins required. The hardware supports a minimum of 1 electrode and up to 64 electrodes per device, with automatic scan sequencing and hardware-accelerated baseline tracking enabled via the SmartSense algorithm included in Infineon's CAPSENSE™ Component Library.
Is external memory required for firmware updates, or does CY8C4146LQA-S263 support in-application programming (IAP)?
CY8C4146LQA-S263 supports full in-application programming (IAP) using its 128 KB on-chip flash memory. Firmware updates can be performed over CAN, UART, or I²C via a custom bootloader - no external memory is required. The flash includes protection mechanisms (row locking, secure boot) and supports dual-bank operation for fail-safe updates without halting real-time functions.
CY8C4146LQA-S263 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 34
- 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, 12x12b SAR; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4146LQA-S263 FAQ
1.How can I place an order for CY8C4146LQA-S263 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQA-S263 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 CY8C4146LQA-S263 reliable?
The price and inventory of CY8C4146LQA-S263 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQA-S263 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQA-S263?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQA-S263 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQA-S263?
CY8C4146LQA-S263 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQA-S263 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 CY8C4146LQA-S263?
For technical support, including CY8C4146LQA-S263 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQA-S263 requirements.
6.How does Aetrix verify that CY8C4146LQA-S263 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQA-S263 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 CY8C4146LQA-S263 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQA-S263?
All CY8C4146LQA-S263 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQA-S263, 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 CY8C4146LQA-S263 part is unused and in its original packaging.
Return procedure for CY8C4146LQA-S263:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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