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Infineon Technologies CY8C4127LQS-S453
- Part No.:
- CY8C4127LQS-S453
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4127LQS-S453.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,275
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Product details
Overview
CY8C4127LQS-S453 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 sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (SCBs), eight TCPWM modules, a CAN 2.0B controller with TTCAN support, and programmable analog blocks - deployed in automotive body electronics, smart sensors, and human-machine interface systems.
For engineers reviewing the CY8C4127LQS-S453 datasheet, CY8C4127LQS-S453 pinout, CY8C4127LQS-S453 application, or CY8C4127LQS-S453 equivalent, key selection criteria include its AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ SNR >5:1, CAN 2.0B + TTCAN timing compliance, Deep Sleep current of 2.5 µA, and GPIO flexibility across 54 pins with programmable drive modes.
Technical Context
The device implements a tightly coupled mixed-signal 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, SCB) operate concurrently under hardware routing control. Its clock system integrates ECO (4–33 MHz), PLL (48 MHz), WCO (32 kHz), IMO (±2%), and ILO for precise timing across sleep/wake transitions.
The CAN block supports time-triggered operation with dedicated message RAM and hardware timestamping; the CAPSENSE™ subsystem uses sigma-delta modulation with automatic baseline calibration and water-tolerant electrode scanning - both validated for automotive interior touch controls per ISO 11452-2 EMI requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic control in safety-critical automotive functions |
| Flash / SRAM | 128 KB flash with Read Accelerator; 16 KB SRAM - supports secure bootloader, OTA updates, and dual-bank firmware execution |
| Operating Temp | –40°C to +105°C (Grade-S) - qualified for engine bay proximity and HVAC control module deployment |
| CAN Interface | CAN 2.0B + TTCAN - provides synchronized message scheduling for distributed chassis control networks |
| Capacitive Sensing | CAPSENSE™ CSD with SmartSense - delivers >5:1 SNR and automatic electrode compensation without host CPU intervention |
| Low-Power Mode | Deep Sleep at 2.5 µA with active analog - sustains touch wake-up and sensor monitoring during vehicle sleep states |
| GPIO Count | 54 programmable pins - supports mixed-signal routing for multi-function I/O including LCD segment drive and analog input |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad for automotive thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power supply rails | Independent 1.71–5.5 V domains enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V sensor inputs) |
| P0[0]–P9[7] | Programmable GPIO | Each pin supports CAPSENSE™, analog input/output, digital logic, or LCD segment drive - configurable per pin in firmware |
| CAN_TX / CAN_RX | Differential CAN bus interface | Dedicated physical layer pins with internal termination and slew-rate control compliant with ISO 11898-2 |
| XTAL_IN / XTAL_OUT | External crystal oscillator connection | Supports 4–33 MHz ECO for high-accuracy timing in motor control and CAN synchronization |
| VDDD / VSSD | Digital core supply/ground | Separate analog/digital power domains minimize noise coupling into sensitive SAR ADC and CAPSENSE™ circuits |
Key Features
| Feature | Design Value |
|---|---|
| Hardware-based CAPSENSE™ | Capacitive sigma-delta (CSD) engine with automatic baseline tracking and water rejection - eliminates software polling overhead and improves HMI response latency |
| Reconfigurable SCBs | Five serial communication blocks each supporting I²C/SPI/UART/LIN slave - allows dynamic peripheral assignment without PCB redesign |
| TTCAN Support | Time-triggered CAN with hardware message scheduling and timestamping - meets ASAM MCD-2 MC timing constraints for ECU diagnostics |
| Deep Sleep Analog Retention | Opamps, comparators, and SAR ADC remain operational at 2.5 µA system current - enables always-on touch wake-up and low-power sensor fusion |
| Smart I/O Logic | Programmable Boolean logic on GPIO inputs/outputs - implements debounce, edge detection, and state machines without CPU cycles |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Multi-button capacitive touch interface with backlight dimming and window lift control. IC Role / Device Role / Timing Role: Central MCU executing CAPSENSE™ scan, PWM-driven LED dimming, LIN slave communication, and TCPWM-based motor control. Use Value: Single-chip integration reduces BOM count by 3+ discrete ICs; SmartSense auto-calibration maintains button responsiveness across humidity and temperature gradients. | Use Scenario: Touch-enabled HVAC control with ambient temperature sensing and fan speed regulation. IC Role / Device Role / Timing Role: Sensor hub aggregating thermistor ADC readings, driving 7-segment LCD display, and managing CAN bus HVAC command distribution. Use Value: Integrated 12-bit SAR ADC with channel sequencer enables simultaneous multi-sensor sampling; GPIO-driven LCD segment drive eliminates external display driver IC. |
| Electronic Parking Brake (EPB) | Steering Wheel Controls |
Use Scenario: Safety-critical parking brake actuation with force feedback and status reporting via CAN. IC Role / Device Role / Timing Role: Fail-safe controller running ASIL-B-compliant firmware, managing CAN 2.0B/TTCAN messaging, and monitoring brake motor current via IDAC-based shunt sensing. Use Value: Hardware CRC and memory protection unit (MPU) enforce runtime integrity; TTCAN guarantees deterministic command delivery within 50 µs jitter budget. | Use Scenario: Multi-function rotary encoder and touchpad on steering wheel with haptic feedback. IC Role / Device Role / Timing Role: Real-time quadrature decoder for encoder position, CAPSENSE™ for touchpad gesture recognition, and PWM output for piezo haptic actuation. Use Value: Quadrature decoder block offloads CPU from high-frequency rotation counting; integrated opamp buffers analog haptic drive signals without external signal conditioning. |
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; includes Ethernet MAC and FlexRay; no integrated CAPSENSE™ | Targets gateway and domain controller roles requiring higher compute throughput and network interfaces | Select when CAN FD, Ethernet, or ASIL-D functional safety certification is required |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz; lower power but no ARM ecosystem or CAPSENSE™; supports CAN 2.0B only | Suitable for cost-sensitive body control modules with basic touch and relay control | Select when legacy toolchain compatibility and minimal BOM cost outweigh advanced HMI capability |
Compared with S32K144 and RL78/F14, CY8C4127LQS-S453 uniquely combines automotive-grade CAPSENSE™, TTCAN, and Deep Sleep analog retention in a single 48-MHz Cortex-M0+ device - optimizing for compact, touch-centric ECUs where mixed-signal integration reduces board area and validation effort.
Availability
CY8C4127LQS-S453 is available at Aetrix Electronics and suitable for automotive door modules, climate control panels, electronic parking brake systems, and steering wheel control units requiring stable component supply under AEC-Q100 Grade-S conditions.
Supply support for CY8C4127LQS-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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4127LQS-S453 belongs to the PSoC™ 4100S Plus product line, engineered specifically for automotive human-machine interface and body electronics applications requiring integrated capacitive sensing, CAN connectivity, and AEC-Q100 reliability.
FAQ
Does CY8C4127LQS-S453 support CAN FD?
No. CY8C4127LQS-S453 implements a CAN 2.0B controller with Time-Triggered CAN (TTCAN) extensions but does not support CAN FD data rates or frame formats. Its CAN block complies with ISO 11898-1:2015 for classical CAN only, with fixed 1 Mbps maximum bit rate and 11-bit identifier support.
What development tools are officially supported for this device?
Infineon officially supports ModusToolbox™ (v3.1+) and PSoC™ Creator (v4.4) IDEs. Both provide full peripheral configuration, CAPSENSE™ tuning, CAN register setup, and debug via KitProg3 or MiniProg3. GCC-based toolchains and Arm Keil MDK are also validated through Infineon's Peripheral Driver Library (PDL).
Is the CAPSENSE™ implementation certified for automotive touch standards?
Yes. The CAPSENSE™ subsystem in CY8C4127LQS-S453 meets ISO 10605 ESD immunity (±15 kV air, ±8 kV contact) and passes EMC testing per ISO 11452-2 (200 V/m radiated immunity) when implemented with recommended layout and shielding per AN85951 and AN88619.
Can the 12-bit SAR ADC operate during Deep Sleep mode?
Yes. The SAR ADC can be configured to perform conversions autonomously during Deep Sleep using wakeup triggers from the WCO or comparator outputs. Conversion results are stored in dedicated SRAM regions retained in Deep Sleep, enabling low-power sensor monitoring without CPU wake-up.
CY8C4127LQS-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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4127LQS-S453 FAQ
1.How can I place an order for CY8C4127LQS-S453 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127LQS-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 CY8C4127LQS-S453 reliable?
The price and inventory of CY8C4127LQS-S453 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127LQS-S453 is usually 5 days.
3.What payment methods are accepted for CY8C4127LQS-S453?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127LQS-S453 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127LQS-S453?
CY8C4127LQS-S453 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127LQS-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 CY8C4127LQS-S453?
For technical support, including CY8C4127LQS-S453 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127LQS-S453 requirements.
6.How does Aetrix verify that CY8C4127LQS-S453 is sourced from the original manufacturer or authorized distributors?
All CY8C4127LQS-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 CY8C4127LQS-S453 meets industry standards.
7.What is the process for return or replacement of CY8C4127LQS-S453?
All CY8C4127LQS-S453 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127LQS-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 CY8C4127LQS-S453 part is unused and in its original packaging.
Return procedure for CY8C4127LQS-S453:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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