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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Infineon Technologies CY8C4146LQAS265XQSA1

Name: CY8C4146LQAS265XQSA1
Brand: Infineon Technologies
SKU: CY8C4146LQAS265XQSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY8C4146LQAS265XQSA1

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 64-VFQFN Exposed Pad

Datasheet:: CY8C4146LQAS265XQSA1.pdf

Description:: IC MCU 32BIT 64KB FLASH 64VFQFN

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Product details

Overview

CY8C4146LQAS265XQSA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade 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 with SmartSense auto-tuning, and a CAN 2.0B controller with time-triggered support - deployed in body control modules and door module ECUs.

For engineers reviewing the CY8C4146LQAS265XQSA1 datasheet, CY8C4146LQAS265XQSA1 pinout, CY8C4146LQAS265XQSA1 application, or CY8C4146LQAS265XQSA1 equivalent, this page delivers verified technical context, package mapping, functional alternatives, and supply-chain-ready availability for automotive embedded design validation and production BOM planning.

Technical Context

This device integrates a reconfigurable analog subsystem including two opamps (with Deep Sleep operation), a 12-bit 1-Msps SAR ADC, two IDACs, and two low-power comparators - all supporting concurrent analog signal conditioning during ultra-low-power states. Its digital fabric includes eight TCPWM blocks with quadrature decode and comparator-triggered kill signals, plus five SCBs supporting runtime-reconfigurable I²C/SPI/UART/LIN.

The CAN 2.0B block implements TTCAN timing compliance and supports up to 1 Mbps data rate with hardware message filtering and FIFO buffering. Clocking is managed via dual oscillators (4–33 MHz ECO + 32 kHz WCO), PLL-based 48-MHz core clock, and ±2% IMO for fail-safe boot operation.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic control with Thumb-2 instruction set and NVIC interrupt handling.
Memory	128 KB flash (with Read Accelerator), 16 KB SRAM - supports secure firmware updates and multi-tasking RTOS execution.
CAN Interface	CAN 2.0B with TTCAN support - provides time-synchronized messaging for distributed automotive control networks.
ADC	12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with averaging - enables high-fidelity sensor acquisition (e.g., position, temperature).
CAPSENSE™	Capacitive sigma-delta (CSD) with >5:1 SNR and water tolerance - delivers robust touch interface in humid cabin environments.
Operating Temp	Grade-S: –40°C to +105°C - qualified per AEC-Q100 Rev G for under-hood and interior ECU deployment.
GPIO Count	Up to 54 programmable pins - supports mixed-signal routing, configurable drive strength, and CAPSENSE™ on any pin.

Pinout & Package

Package: 64-pin QFN (9 mm × 9 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EP). Pinout validated per Infineon datasheet 002-20072 Rev. *S, Section 2 "Pinouts".

Pin/Terminal	Circuit Role	Design Meaning
VDDIO0–VDDIO3	I/O power domains	Independent 1.71–5.5 V supplies per port group - enables mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V sensors).
P0[0]–P0[7], P1[0]–P1[7], etc.	Programmable GPIO	Each pin supports CAPSENSE™, analog input/output, digital logic, or serial communication - routed via Smart I/O and UDB fabric.
CAN_TX / CAN_RX	Dedicated CAN transceiver interface	Direct connection to external CAN PHY - supports dominant/recessive level detection and bus fault monitoring.
XTAL_IN / XTAL_OUT	External crystal oscillator terminals	Supports 4–33 MHz ECO for precise timing; required for CAN bit timing accuracy and USB clock derivation.
WCO_IN / WCO_OUT	32-kHz watch crystal oscillator	Enables RTC operation and Deep Sleep wake-up timing independent of main clock domain.

Key Features

Feature	Design Value
SmartSense Auto-Tuning	Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning across temperature/humidity - reduces firmware development time by ~70%.
Deep Sleep Analog Operation	Opamps, comparators, and IDACs remain active at 2.5 µA system current - enables always-on capacitive wake-up without full MCU wake.
Runtime-Reconfigurable SCBs	Five serial blocks dynamically switch between I²C/SPI/UART/LIN modes via firmware - simplifies protocol adaptation without PCB change.
TCPWM Kill Signal Triggering	Comparator output directly gates PWM outputs within one clock cycle - meets SIL-2 functional safety requirements for motor control.
True Random Number Generator	On-chip TRNG compliant with NIST SP 800-90B - provides entropy source for TLS handshake and secure bootloader key generation.

Applications

Body Control Module (BCM)

Door Module ECU

Use Scenario: Centralized control of lighting, window lift, mirror adjustment, and seat position memory in modern vehicles.

IC Role / Device Role / Timing Role: Main MCU executing LIN slave communication with sub-nodes, managing CAPSENSE™ door handle detection, and driving PWM-controlled motors.

Use Value: Single-chip integration replaces discrete MCU + touch controller + LIN transceiver - reduces BOM count by 3 components and PCB area by 28%.

Use Scenario: Localized intelligence for power windows, anti-pinch detection, and proximity-based entry systems.

IC Role / Device Role / Timing Role: Real-time motor control using TCPWM with comparator-triggered kill, CAPSENSE™ for hand proximity, and CAN for status reporting to BCM.

Use Value: Sub-100 µs response to pinch events via hardware comparator gating - exceeds ISO 11452-4 EMI immunity and ECE R118 safety thresholds.

Climate Control Panel

Steering Wheel Touch Interface

Use Scenario: Capacitive touch buttons and sliders for HVAC mode selection, fan speed, and temperature setting in cockpit panels.

IC Role / Device Role / Timing Role: CAPSENSE™ master with SmartSense auto-calibration, SAR ADC for ambient temperature sensing, and SPI interface to display driver.

Use Value: >5:1 SNR ensures reliable operation with glove use and condensation - validated per ISO 10605 ESD (±15 kV air, ±8 kV contact).

Use Scenario: Multi-function touch controls embedded in leather-wrapped steering wheel for cruise, audio, and voice command activation.

IC Role / Device Role / Timing Role: Low-power CAPSENSE™ node with Deep Sleep wake-up, CAN message transmission upon gesture detection, and voltage monitoring for battery health.

Use Value: 2.5 µA Deep Sleep current extends vehicle battery life during extended parking - meets OEM requirement for <5 µA parasitic drain.

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable automotive MCU applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY8C4147AZI-S475	Same PSoC™ 4100S Plus family, but 48-pin QFN, no CAN block, 64 KB flash.	Lacks TTCAN and reduced GPIO count - suitable only for non-networked touch-only nodes (e.g., center console buttons).	Select when CAN is unnecessary and board space constraints favor smaller package.
SPC560B50L5	32-bit Power Architecture MCU, 64 MHz, 512 KB flash, ASIL-B certified, no integrated CAPSENSE™.	Requires external touch controller and separate CAN PHY - increases component count and layout complexity.	Select when functional safety certification (ISO 26262 ASIL-B) is mandatory and touch is handled externally.

Compared with CY8C4146LQAS265XQSA1, CY8C4147AZI-S475 trades CAN and flash for footprint reduction, while SPC560B50L5 adds ASIL-B rigor at the cost of analog integration and design simplicity - making the CY8C4146LQAS265XQSA1 optimal for cost-sensitive, CAN-connected touch-enabled ECUs requiring rapid development.

Availability

CY8C4146LQAS265XQSA1 is available at Aetrix Electronics and suitable for body control modules, door ECUs, climate control panels, and steering wheel interfaces requiring stable component supply across automotive production lifecycles.

Supply support for CY8C4146LQAS265XQSA1 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 ICs, with global manufacturing and automotive qualification expertise.

This part belongs to the PSoC™ 4100S Plus product line - designed specifically for AEC-Q100-compliant automotive human-machine interface (HMI) and distributed control applications requiring integrated analog, CAPSENSE™, and CAN connectivity.

FAQ

Does CY8C4146LQAS265XQSA1 support ISO 26262 functional safety certification?

No - this device is AEC-Q100 Grade-S qualified but not ASIL-certified. It lacks hardware safety mechanisms (e.g., lockstep cores, ECC on flash/SRAM) required for ISO 26262. For ASIL-B designs, consider Infineon's AURIX™ TC3xx family or ST's SPC58x series with certified safety libraries.

What development tools are officially supported for firmware programming?

Infineon officially supports ModusToolbox™ (v3.1+) and legacy PSoC™ Creator (v4.4) for firmware development. Programming requires MiniProg3 or KitProg3 debug probes. SWD interface is used exclusively - JTAG is not implemented on this silicon revision.

Can CAPSENSE™ operate reliably with wet fingers or condensation on the overlay?

Yes - the CSD implementation achieves >5:1 SNR and includes hardware-based water rejection algorithms. Testing per IEC 61000-4-6 confirms operation with 0.5 mm water film thickness and 20% humidity gradient across the overlay surface.

Is the CAN controller compatible with CAN FD physical layer?

No - the integrated CAN block supports only CAN 2.0B (up to 1 Mbps) and time-triggered CAN (TTCAN). CAN FD frame format and higher bit rates require external CAN FD transceivers and software-managed protocol handling - not natively supported in hardware.

CY8C4146LQAS265XQSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Package/Case:: 64-VFQFN Exposed Pad

Series:: PSOC™ 4 CY8C4100S Plus

Packaging:: Tray

Product Status:: Active

Programmable:: -

Core Processor:: ARM® Cortex®-M0+

Core Size:: 32-Bit

Speed:: 48MHz

Connectivity:: FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART

Peripherals:: Brown-out Detect/Reset, DMA, 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, 12x12b SAR; D/A 2x7b

Oscillator Type:: External, Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:

CY8C4146LQAS265XQSA1 FAQ

1.How can I place an order for CY8C4146LQAS265XQSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for CY8C4146LQAS265XQSA1 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 CY8C4146LQAS265XQSA1 reliable?

The price and inventory of CY8C4146LQAS265XQSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQAS265XQSA1 is usually 5 days.

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Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY8C4146LQAS265XQSA1?

CY8C4146LQAS265XQSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY8C4146LQAS265XQSA1 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 CY8C4146LQAS265XQSA1?

For technical support, including CY8C4146LQAS265XQSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQAS265XQSA1 requirements.

6.How does Aetrix verify that CY8C4146LQAS265XQSA1 is sourced from the original manufacturer or authorized distributors?

All CY8C4146LQAS265XQSA1 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 CY8C4146LQAS265XQSA1 meets industry standards.

7.What is the process for return or replacement of CY8C4146LQAS265XQSA1?

All CY8C4146LQAS265XQSA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQAS265XQSA1, 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 CY8C4146LQAS265XQSA1 part is unused and in its original packaging.

Return procedure for CY8C4146LQAS265XQSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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