My Inquiry
My Account
Infineon Technologies CY8C4146LQA-S243T
- Part No.:
- CY8C4146LQA-S243T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQA-S243T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,720
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4146LQA-S243T 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 (I²C/SPI/UART/LIN), a CAN 2.0B controller with TTCAN support, and eight 16-bit TCPWM blocks-used in motor control, human-machine interface, and body electronics systems.
For engineers reviewing the CY8C4146LQA-S243T datasheet, CY8C4146LQA-S243T pinout, CY8C4146LQA-S243T application, or CY8C4146LQA-S243T equivalent, key selection criteria include its AEC-Q100 Grade-S qualification, on-die CAPSENSE™ with >5:1 SNR, CAN 2.0B + TTCAN capability, Deep Sleep current of 2.5 µA, and full ModusToolbox™/PSoC™ Creator toolchain support.
Technical Context
The device implements a tightly integrated mixed-signal SoC architecture where programmable analog blocks (two opamps, 12-bit 1-Msps SAR ADC, two IDACs, two low-power comparators) coexist with digital resources including Smart I/O logic, TCPWMs with comparator-triggered kill signals, and a dedicated CAN 2.0B block supporting time-triggered operation. Clocking is managed via multiple sources: 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 32-kHz ILO-with PLL enabling precise 48-MHz system clock generation.
Its GPIO subsystem supports up to 54 pins across QFN packages, with every pin configurable for CAPSENSE™, analog input/output, or digital functions-including programmable drive strength, slew rate, and pull-up/down. The device operates from 1.71 V to 5.5 V and sustains analog functionality in Deep Sleep mode at 2.5 µA system current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max-enables real-time deterministic execution for automotive control loops. |
| Flash / SRAM | 128 KB flash with Read Accelerator + 16 KB SRAM-supports complex firmware with secure boot and OTA update capability. |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with SmartSense auto-tuning and >5:1 SNR-enables robust touch buttons/sliders under wet or noisy conditions. |
| CAN Interface | CAN 2.0B with TTCAN support-provides deterministic timing for safety-critical vehicle network messaging. |
| ADC | 12-bit 1-Msps SAR ADC with differential mode and channel sequencer-supports high-fidelity sensor acquisition in battery management or HVAC control. |
| Power Range | 1.71 V to 5.5 V supply-allows direct interfacing with 3.3 V and 5 V automotive subsystems without level-shifting. |
| Temperature Grade | AEC-Q100 Grade-S (–40°C to +105°C)-certified for under-hood and cabin control module deployment. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| 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 interface with legacy sensors or displays. |
| P0.0–P0.7, P1.0–P1.7, etc. | Programmable GPIO | All 54 pins support CAPSENSE™, analog input/output, or digital logic-no fixed-function pin constraints. |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Hardwired to internal CAN controller-requires external transceiver for bus connection. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Supports 4–33 MHz ECO for high-accuracy timing; optional PLL lock for 48-MHz system clock. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables RTC operation and low-power wake-up timing independent of main clock domain. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning-reduces development time and improves field reliability across temperature/humidity. |
| Deep Sleep with active analog | 2.5 µA system current while maintaining opamp/ADC/comparator operation-enables always-on touch wake-up or sensor monitoring. |
| Reconfigurable SCBs | Five serial blocks independently configurable as I²C master/slave, SPI master/slave, UART, or LIN slave-reduces BOM count and PCB footprint. |
| TCPWM kill signal | Comparator-triggered hardware shutdown of PWM outputs-critical for motor overcurrent protection without CPU intervention. |
| True RNG (TRNG) | Dedicated entropy source for cryptographic key generation-meets ISO 26262 ASIL-B software security requirements. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Touch-sensitive door handle and window switch interface with water tolerance. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing LIN slave communication to body control module, and driving local LED indicators. Use Value: SmartSense auto-tuning maintains button responsiveness during rain exposure; Deep Sleep enables <3 µA standby current for battery preservation. | Use Scenario: Capacitive slider for fan speed and temperature adjustment in HVAC control unit. IC Role / Device Role / Timing Role: Real-time touch processing engine with SAR ADC reading thermistor inputs and PWM controlling blower motor. Use Value: >5:1 SNR ensures stable slider tracking despite EMI from nearby motors; TTCAN synchronizes climate data with central gateway. |
| Electric Power Steering (EPS) Sensor Interface | Seat Position Memory Module |
Use Scenario: Torque and position sensor signal conditioning and CAN message aggregation. IC Role / Device Role / Timing Role: Analog front-end processor with 12-bit SAR ADC and CAN 2.0B transmitter-feeding torque feedback to EPS ECU. Use Value: 1-Msps sampling captures transient torque events; hardware CRC and TTCAN ensure message integrity and timing predictability. | Use Scenario: Non-volatile memory storage and recall of driver seat positions using capacitive touch controls. IC Role / Device Role / Timing Role: Standalone memory manager with CAPSENSE™ UI, EEPROM emulation in flash, and CAN-based configuration sync. Use Value: On-die flash endurance (>100k cycles) enables reliable seat profile storage; 2.5 µA Deep Sleep extends battery backup life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, 112 MHz, no integrated CAPSENSE™, requires external touch controller | Better floating-point performance for motor control math; lacks native capacitive sensing IP | Select when advanced motor control algorithms dominate over HMI complexity. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz, AEC-Q100 Grade-2 (–40°C to +105°C), no CAN FD or TTCAN | Lower cost, lower power, but limited mixed-signal integration and no time-triggered CAN | Select for cost-sensitive body electronics where TTCAN and CAPSENSE™ are not required. |
Compared with NXP S32K144 and Renesas RL78/F14, CY8C4146LQA-S243T uniquely integrates CAPSENSE™, TTCAN, and Deep Sleep analog retention in a single AEC-Q100 Grade-S package-making it optimal for compact, sensor-rich automotive HMI and distributed control nodes.
Availability
CY8C4146LQA-S243T is available at Aetrix Electronics and suitable for automotive door modules, climate control panels, electric power steering interfaces, and seat position memory systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for CY8C4146LQA-S243T 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4146LQA-S243T belongs to the PSoC™ 4100S Plus product line-designed specifically for automotive-grade, low-power, mixed-signal embedded control with integrated capacitive sensing and CAN connectivity.
FAQ
Does CY8C4146LQA-S243T support CAN FD?
No. This device implements a CAN 2.0B controller with time-triggered CAN (TTCAN) capability but does not support CAN FD data rates or extended frame formats. TTCAN provides deterministic scheduling for safety-critical messages, while CAN FD requires separate hardware implementation found in newer PSoC™ 4200 series devices.
What development tools are officially supported?
Infineon officially supports ModusToolbox™ (Eclipse-based IDE with PDL and CAPSENSE™ middleware) and the legacy PSoC™ Creator IDE. Both provide full debug, programming, and component configurator support. MiniProg3 and KitProg3 programmers are certified for flash and debug operations on this device.
Is the 12-bit SAR ADC capable of simultaneous sampling?
No. The 12-bit SAR ADC has a single conversion core with a channel sequencer and signal averaging-but no hardware support for true simultaneous sampling across multiple channels. Multi-channel acquisition is performed sequentially with sub-microsecond inter-channel delay, sufficient for most automotive sensor monitoring tasks.
Can GPIO pins be used for both CAPSENSE™ and analog ADC input simultaneously?
No. While any GPIO pin can be configured for CAPSENSE™ *or* analog input, they cannot perform both functions concurrently on the same pin. The analog multiplexer routing and CTB/ADC resource allocation are mutually exclusive per pin in a given configuration-requiring time-multiplexed usage if both capabilities are needed in one design.
CY8C4146LQA-S243T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, 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, 16x12b SAR, Sigma-Delta; D/A 1x12b
- 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:
CY8C4146LQA-S243T FAQ
1.How can I place an order for CY8C4146LQA-S243T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQA-S243T 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-S243T reliable?
The price and inventory of CY8C4146LQA-S243T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQA-S243T is usually 5 days.
3.What payment methods are accepted for CY8C4146LQA-S243T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQA-S243T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQA-S243T?
CY8C4146LQA-S243T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQA-S243T 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-S243T?
For technical support, including CY8C4146LQA-S243T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQA-S243T requirements.
6.How does Aetrix verify that CY8C4146LQA-S243T is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQA-S243T 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-S243T meets industry standards.
7.What is the process for return or replacement of CY8C4146LQA-S243T?
All CY8C4146LQA-S243T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQA-S243T, 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-S243T part is unused and in its original packaging.
Return procedure for CY8C4146LQA-S243T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4146LQA-S243T 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…
