My Inquiry
My Account
Infineon Technologies CY8C4127LQA-S453
- Part No.:
- CY8C4127LQA-S453
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4127LQA-S453.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,182
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4127LQA-S453 from Infineon is an AEC-Q100 Grade-S qualified automotive PSoC™ 4100S Plus microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (SCBs), eight TCPWM units, a CAN 2.0B interface with TTCAN support, and operates from 1.71 V to 5.5 V across –40°C to +105°C. Used in automotive body control modules requiring robust touch HMI and real-time motor timing.
For engineers reviewing the CY8C4127LQA-S453 datasheet, CY8C4127LQA-S453 pinout, CY8C4127LQA-S453 application, or CY8C4127LQA-S453 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ SNR > 5:1, CAN 2.0B + TTCAN compliance, Deep Sleep current of 2.5 µA, and 54 GPIO with programmable drive strength and slew rate.
Technical Context
The device integrates a fixed-function CAN 2.0B controller with time-triggered capability (TTCAN), supporting deterministic communication for automotive networked systems. Its clock system combines a 4–33 MHz ECO, PLL for 48-MHz core clock, 32-kHz WCO, and ±2% IMO - enabling precise timing for TCPWM-based motor control and LIN slave operation.
Programmable analog resources include two opamps with Deep Sleep operation, a 12-bit 1-Msps SAR ADC with channel sequencer and averaging, and dual IDACs usable for CAPSENSE™ or precision biasing. Digital logic is implemented via Smart I/O blocks and eight TCPWM units supporting center-aligned PWM, quadrature decoding, and comparator-triggered kill signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic execution for automotive control loops. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports secure bootloader, OTA updates, and multi-tasking firmware. |
| CAN Interface | CAN 2.0B with TTCAN support - provides time-synchronized message scheduling for safety-critical vehicle networks. |
| CAPSENSE™ Performance | Sigma-delta CSD with SNR > 5:1 and water tolerance - delivers reliable touch detection in humid or wet automotive environments. |
| Power Modes | Deep Sleep: 2.5 µA digital + operational analog - sustains capacitive sensing and wake-on-event functionality during vehicle sleep mode. |
| GPIO Count | 54 programmable pins - all support CAPSENSE™, analog input/output, or digital logic with configurable drive strength and slew rate. |
| Operating Temp | –40°C to +105°C (Grade-S) - certified for under-hood and cabin-mounted automotive applications. |
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 |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; decoupling required per datasheet layout guidelines for noise immunity. |
| GND | Digital/analog ground | Common reference for all domains; split planes recommended for mixed-signal integrity. |
| P0[0]–P0[7] | General-purpose GPIO | Support CAPSENSE™, analog input, UART TX/RX, or PWM output; programmable drive/slew. |
| CAN_TX / CAN_RX | CAN physical layer interface | Differential pair routed to external transceiver; internal termination and filtering supported. |
| XTAL_IN / XTAL_OUT | External crystal oscillator input/output | Connects to 4–33 MHz ECO; critical for CAN timing accuracy and clock redundancy. |
| SWD_CLK / SWD_IO | ARM Serial Wire Debug interface | Two-pin debug port for programming and real-time trace; compatible with MiniProg3 and industry-standard tools. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning and compensates for environmental drift. |
| TTCAN Support | Time-triggered scheduling ensures deterministic CAN frame transmission for ASIL-B–compatible systems. |
| Deep Sleep Analog Operation | Opamps, comparators, and IDACs remain active in Deep Sleep - enables always-on touch wake-up with <2.5 µA total current. |
| Reconfigurable SCBs | Five serial blocks dynamically switch between I²C, SPI, UART, or LIN slave - reduces BOM count and PCB footprint. |
| Quadrature Decoder | Integrated in TCPWM block - directly processes encoder signals without CPU intervention for motor position feedback. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Touch-sensitive door lock/unlock, window lift, and mirror adjustment controls in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ scan, CAN message framing, and TCPWM-driven motor actuation. Use Value: Single-chip integration replaces discrete touch controller + MCU + CAN transceiver interface, reducing component count by ≥30%. | Use Scenario: Capacitive slider and button interface for HVAC fan speed, temperature, and mode selection in harsh thermal environments. IC Role / Device Role / Timing Role: CAPSENSE™ front-end with hardware SNR optimization and CAN bus gateway to powertrain ECU. Use Value: Water-tolerant CSD design maintains usability during condensation or spill events without false triggers. |
| Steering Column Switch | Seat Position Memory System |
Use Scenario: Multi-function toggle and push-button controls mounted on steering wheel with vibration feedback. IC Role / Device Role / Timing Role: Real-time CAN node with TTCAN scheduling for synchronized lighting and audio cue responses. Use Value: Sub-100 µs interrupt latency and hardware kill signal routing ensure immediate response to driver inputs. | Use Scenario: Motorized seat position storage and recall using potentiometer feedback and memory presets. IC Role / Device Role / Timing Role: Quadrature decoder + TCPWM + EEPROM-emulated flash for non-volatile position storage. Use Value: On-chip analog resources eliminate external ADC and position sensor signal conditioning circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 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 algorithms; lacks on-chip capacitive sensing. | Select when advanced math-intensive control (e.g., field-oriented motor control) outweighs touch integration needs. |
| 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 and power; limited peripheral flexibility and no hardware CAPSENSE™ acceleration. | Select for cost-sensitive, low-complexity body electronics where CAN timing determinism is not required. |
Compared with S32K144 and RL78/F14, CY8C4127LQA-S453 uniquely combines AEC-Q100 Grade-S qualification, hardware-accelerated CAPSENSE™, TTCAN, and Deep Sleep analog operation - making it optimal for integrated touch + CAN nodes in space- and power-constrained automotive modules.
Availability
CY8C4127LQA-S453 is available at Aetrix Electronics and suitable for automotive body control modules, climate control interfaces, and steering column switch assemblies requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for CY8C4127LQA-S453 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 is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4127LQA-S453 belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive human-machine interface (HMI) and distributed control nodes requiring integrated analog, digital, and communication peripherals in a single AEC-Q100-qualified chip.
FAQ
What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4127LQA-S453?
The core runs at up to 48 MHz, achieved via internal PLL multiplication of the 4–33 MHz external crystal oscillator (ECO) or ±2% internal main oscillator (IMO). This frequency is fully supported across the full Grade-S temperature range (–40°C to +105°C) and meets AEC-Q100 timing requirements for automotive control tasks.
Does CY8C4127LQA-S453 support CAN FD or only classical CAN?
CY8C4127LQA-S453 implements a CAN 2.0B controller with time-triggered CAN (TTCAN) capability but does not support CAN FD. Its CAN block complies with ISO 11898-1:2015 for classical CAN at up to 1 Mbps, with hardware timestamping and TTCAN schedule enforcement for deterministic messaging.
Can all 54 GPIO pins be used simultaneously for CAPSENSE™ sensing?
No - while all 54 GPIO pins are CAPSENSE™-capable, practical simultaneous use is limited by the number of available CSD channels and routing constraints. The CSD block supports up to 32 sensors in mutual-capacitance mode or 64 in self-capacitance mode, subject to pin grouping and analog bus allocation defined in the PSoC™ Creator configuration tool.
Is ModusToolbox™ software required to develop firmware for this device?
No - both ModusToolbox™ and the legacy PSoC™ Creator IDE are officially supported. PSoC™ Creator remains fully functional for schematic-based design and CAPSENSE™ tuning, while ModusToolbox™ offers modern CLI-based workflows, GitHub-integrated BSPs, and Peripheral Driver Library (PDL) support for CMake-based projects targeting professional automotive development pipelines.
CY8C4127LQA-S453 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4000S
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 24MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, LCD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 34
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b SAR, 16x12b Sigma-Delta
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4127LQA-S453 FAQ
1.How can I place an order for CY8C4127LQA-S453 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127LQA-S453 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 CY8C4127LQA-S453 reliable?
The price and inventory of CY8C4127LQA-S453 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127LQA-S453 is usually 5 days.
3.What payment methods are accepted for CY8C4127LQA-S453?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127LQA-S453 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127LQA-S453?
CY8C4127LQA-S453 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127LQA-S453 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 CY8C4127LQA-S453?
For technical support, including CY8C4127LQA-S453 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127LQA-S453 requirements.
6.How does Aetrix verify that CY8C4127LQA-S453 is sourced from the original manufacturer or authorized distributors?
All CY8C4127LQA-S453 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 CY8C4127LQA-S453 meets industry standards.
7.What is the process for return or replacement of CY8C4127LQA-S453?
All CY8C4127LQA-S453 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127LQA-S453, 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 CY8C4127LQA-S453 part is unused and in its original packaging.
Return procedure for CY8C4127LQA-S453:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4127LQA-S453 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…
