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

Infineon Technologies CY8C4146LQAS455XQSA1

Name: CY8C4146LQAS455XQSA1
Brand: Infineon Technologies
SKU: CY8C4146LQAS455XQSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY8C4146LQAS455XQSA1

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 64-VFQFN Exposed Pad

Datasheet:: CY8C4146LQAS455XQSA1.pdf

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

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Product details

Overview

CY8C4146LQAS455XQSA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade PSoC™ 4100S Plus microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive sensing with >5:1 SNR. It includes five reconfigurable SCBs (I²C/SPI/UART/LIN), CAN 2.0B with TTCAN support, and eight 16-bit TCPWM blocks - deployed in automotive body control modules for touch-enabled door handles and climate panels.

For engineers reviewing the CY8C4146LQAS455XQSA1 datasheet, CY8C4146LQAS455XQSA1 pinout, CY8C4146LQAS455XQSA1 application, or CY8C4146LQAS455XQSA1 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ with SmartSense auto-tuning, CAN 2.0B + TTCAN timing compliance, Deep Sleep current of 2.5 µA, and GPIO flexibility across 54 pins with programmable drive strength and slew rate.

Technical Context

This device implements a tightly integrated mixed-signal SoC architecture where the Arm® Cortex®-M0+ core executes firmware while programmable analog blocks (CTB opamps, SAR ADC, IDACs) and digital logic (Smart I/O, TCPWM, SCBs) are configured at runtime via PSoC™ Creator or ModusToolbox™. The CAN block supports time-triggered operation with deterministic latency ≤1.5 µs and bit-rate up to 1 Mbps.

The CAPSENSE™ subsystem uses capacitance-sigma-delta (CSD) modulation with hardware-accelerated baseline tracking and noise rejection, enabling robust touch detection under wet conditions. All analog peripherals remain functional in Deep Sleep mode with only 2.5 µA system current, enabled by independent ILO/WCO clock domains and retention-capable SRAM.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm® Cortex®-M0+, 48 MHz - delivers deterministic real-time control with Thumb-2 instruction set and NVIC interrupt handling.
Memory	128 KB flash (with Read Accelerator), 16 KB SRAM - supports secure bootloader storage, dual-bank firmware updates, and sensor data buffering.
CAN Interface	CAN 2.0B + TTCAN compliant - enables synchronized message scheduling for ASIL-B–capable body electronics and gateway functions.
CAPSENSE™ Performance	SNR >5:1, water-tolerant CSD sensing - allows reliable touch detection on sealed automotive surfaces without mechanical buttons.
Power Modes	Deep Sleep: 2.5 µA (digital active), 1.3 µA (RTC-only); operating range 1.71–5.5 V - suitable for always-on vehicle entry systems.
GPIO Count	54 programmable pins - all support CAPSENSE™, analog input, or digital logic; each configurable for drive strength (4–20 mA), slew rate, and pull-up/down.
ADC	12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - enables high-fidelity battery voltage, temperature, and motor current monitoring.

Pinout & Package

Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).

Pin/Terminal	Circuit Role	Design Meaning
VDDIO0–VDDIO3	I/O power supply rails	Independent 1.71–5.5 V domains 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 GPIOs	All 54 pins support CAPSENSE™, analog input/output, digital logic, or SCB/CAN functions - no fixed peripheral pinout; routing defined in firmware.
XTAL_IN / XTAL_OUT	External crystal oscillator interface	Supports 4–33 MHz ECO for precise timing; required for CAN bit-rate accuracy and USB-free clock synchronization.
CAN_TX / CAN_RX	Dedicated CAN transceiver interface	Hardwired to internal CAN controller; electrically isolated via external transceiver (e.g., TJA1042) for fault-tolerant bus communication.
WAKEUP / RESET	System control inputs	Edge-triggered wake-from-Deep-Sleep input; dedicated reset pin with internal pull-up and glitch filtering for automotive reset sequencing.

Key Features

Feature	Design Value
SmartSense Auto-Tuning	Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning and compensates for PCB stackup, overlay thickness, and environmental drift.
Reconfigurable SCBs	Five serial blocks dynamically assignable as I²C master/slave, SPI master/slave, UART, or LIN slave - reduces BOM count and PCB footprint vs. discrete protocol ICs.
TTCAN Support	Time-triggered CAN scheduling with guaranteed slot allocation and jitter <100 ns - meets ISO 11898-1:2015 requirements for safety-critical body domain networks.
Deep Sleep Analog Retention	Opamps, comparators, and SAR ADC remain powered and functional at 2.5 µA system current - enables continuous low-power sensor monitoring without CPU wake-up.
True Random Number Generator	On-chip TRNG compliant with NIST SP 800-90B - provides entropy source for secure key generation in automotive OTA update authentication.

Applications

Automotive Door Module

Climate Control Panel

Use Scenario: Capacitive touch interface for lock/unlock, window control, and mirror adjustment in exterior door handles and interior panels.

IC Role / Device Role / Timing Role: Primary MCU executing touch firmware, driving LED indicators, managing LIN communication to body control unit, and sampling ambient temperature/humidity.

Use Value: Eliminates mechanical switches and reduces assembly cost; SmartSense ensures consistent response through paint, glass, or wet conditions.

Use Scenario: Touch-sensitive HVAC control surface with rotary encoder emulation and real-time fan speed feedback.

IC Role / Device Role / Timing Role: Real-time sensor fusion hub aggregating thermistor, NTC, and PWM fan tachometer signals while running CAPSENSE™ and TCPWM-based motor control.

Use Value: Single-chip solution replaces discrete MCU + touch controller + motor driver; 12-bit ADC enables ±0.5°C temperature accuracy.

Body Control Gateway

Seat Position Memory System

Use Scenario: Low-latency LIN-to-CAN bridge coordinating lighting, wiper, and door modules in entry-level vehicles.

IC Role / Device Role / Timing Role: CAN 2.0B/TTCAN node with scheduled message transmission, LIN slave responder, and watchdog-managed fail-safe state machine.

Use Value: Deterministic TTCAN timing ensures synchronized lamp flashing and wiper sweep; 8 TCPWM blocks handle multi-channel PWM dimming.

Use Scenario: Non-volatile seat position storage and recall using potentiometer feedback and memory seat buttons.

IC Role / Device Role / Timing Role: Analog front-end for precision potentiometer reading (via SAR ADC), EEPROM-emulated flash storage, and CAN message transmission to central ECU.

Use Value: On-chip 128 KB flash stores >100 seat profiles with CRC-protected integrity; IDACs enable ratiometric sensor excitation for drift-free position tracking.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY8C4147LQAS455XQSA1	Same die, 64-pin TQFP package; higher pin count enables more SCB/CAN routing flexibility and additional GPIOs for complex I/O expansion.	Suitable for gateway designs requiring ≥4 SCBs active simultaneously plus CAN + LIN + I²C + SPI concurrently.	Select when board layout requires TQFP or >54 GPIOs; identical firmware compatibility and qualification grade.
SPC560B50L5	32-bit Power Architecture e200z0 core, 80 MHz, 512 KB flash, ASIL-B certified, but lacks integrated CAPSENSE™ and programmable analog blocks.	Targeted at engine management and transmission control where functional safety dominates over human interface features.	Choose only if ISO 26262 ASIL-B certification is mandatory and touch sensing is handled externally.

Compared with CY8C4147LQAS455XQSA1, this QFN variant offers smaller footprint and thermal performance optimized for space-constrained door modules; versus SPC560B50L5, it trades ASIL-B certification for integrated capacitive sensing, lower power, and faster design iteration via PSoC™ configurability.

Availability

CY8C4146LQAS455XQSA1 is available at Aetrix Electronics and suitable for automotive body electronics, touch-enabled climate control systems, and CAN-based gateway modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CY8C4146LQAS455XQSA1 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 centers and ISO/TS 16949-certified manufacturing.

This part belongs to the PSoC™ 4100S Plus product line - engineered specifically for AEC-Q100 automotive body electronics demanding integrated capacitive sensing, low-power operation, and CAN/LIN connectivity without external components.

FAQ

Is CY8C4146LQAS455XQSA1 qualified for automotive use?

Yes. It is AEC-Q100 qualified for Grade-S (–40°C to +105°C), with full qualification test reports covering HTOL, TC, UHAST, and ESD per JESD22 standards. The device is approved for use in body control modules, door systems, and interior HMI applications per Infineon's automotive qualification program.

Does this part support CAN FD?

No. CY8C4146LQAS455XQSA1 integrates a CAN 2.0B controller with TTCAN capability, supporting bit rates up to 1 Mbps and time-triggered scheduling, but does not implement CAN FD frame format, data-rate switching, or extended data length beyond 8 bytes.

Can CAPSENSE™ operate during Deep Sleep mode?

Yes. The CAPSENSE™ CSD block remains fully operational in Deep Sleep mode with 2.5 µA total system current. Hardware-accelerated scanning, baseline tracking, and noise filtering continue autonomously without CPU intervention, enabling always-on touch wake-up.

What development tools are supported?

Infineon officially supports PSoC™ Creator (Windows-only IDE with schematic-driven design) and ModusToolbox™ (cross-platform, Eclipse-based, CLI-enabled). Both provide full register access, CAPSENSE™ Tuner GUI integration, TCPWM configuration wizards, and validated BSPs for CY8CKIT-041-41XX and CY8CKIT-149 kits.

CY8C4146LQAS455XQSA1 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, CapSense, 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:

CY8C4146LQAS455XQSA1 FAQ

1.How can I place an order for CY8C4146LQAS455XQSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for CY8C4146LQAS455XQSA1 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 CY8C4146LQAS455XQSA1 reliable?

The price and inventory of CY8C4146LQAS455XQSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQAS455XQSA1 is usually 5 days.

3.What payment methods are accepted for CY8C4146LQAS455XQSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQAS455XQSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY8C4146LQAS455XQSA1?

CY8C4146LQAS455XQSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY8C4146LQAS455XQSA1 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 CY8C4146LQAS455XQSA1?

For technical support, including CY8C4146LQAS455XQSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQAS455XQSA1 requirements.

6.How does Aetrix verify that CY8C4146LQAS455XQSA1 is sourced from the original manufacturer or authorized distributors?

All CY8C4146LQAS455XQSA1 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 CY8C4146LQAS455XQSA1 meets industry standards.

7.What is the process for return or replacement of CY8C4146LQAS455XQSA1?

All CY8C4146LQAS455XQSA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQAS455XQSA1, 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 CY8C4146LQAS455XQSA1 part is unused and in its original packaging.

Return procedure for CY8C4146LQAS455XQSA1:

1.Submit a request within 90 days.

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

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