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Infineon Technologies CY8C4127LQE-S453
- Part No.:
- CY8C4127LQE-S453
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4127LQE-S453.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,204
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Product details
Overview
CY8C4127LQE-S453 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 SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (SCB), eight 16-bit TCPWM units, a CAN 2.0B controller with TTCAN support, and programmable analog blocks - deployed in automotive body electronics, smart sensors, and human-machine interface modules.
For engineers reviewing the CY8C4127LQE-S453 datasheet, CY8C4127LQE-S453 pinout, CY8C4127LQE-S453 application, or CY8C4127LQE-S453 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAN 2.0B with time-triggered capability, Deep Sleep current of 2.5 µA, 12-bit 1-Msps SAR ADC with sequencer, and CAPSENSE™ SNR > 5:1 for wet-environment touch interfaces.
Technical Context
The device integrates a deterministic 48-MHz Arm® Cortex®-M0+ core with dual-bus AHB matrix, supporting concurrent flash execution and DMA transfers. Its analog subsystem includes two opamps operable in Deep Sleep, a 12-bit SAR ADC with differential input and hardware averaging, and a dedicated capacitance-sensing sigma-delta (CSD) block delivering >5:1 SNR and water tolerance.
Digital resources comprise five SCBs (I²C/SPI/UART/LIN), one CAN 2.0B block with TTCAN timing compliance, eight TCPWM units with quadrature decode and comparator-triggered kill signals, and Smart I/O logic enabling Boolean operations directly on GPIO paths without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - deterministic real-time execution with NVIC and low-latency interrupt handling |
| Memory | 128 KB flash (with Read Accelerator), 16 KB SRAM - sufficient for AUTOSAR-compliant bootloaders and sensor fusion firmware |
| ADC | 12-bit SAR, 1 Msps, differential mode, channel sequencer with signal averaging - enables high-accuracy multi-channel sensor acquisition |
| CAPSENSE™ | Capacitive sigma-delta (CSD) with SmartSense auto-tuning, SNR > 5:1 - supports robust touch buttons/sliders under condensation or glove use |
| CAN Interface | CAN 2.0B with TTCAN support - meets ISO 11898-1 for time-deterministic messaging in chassis/body networks |
| Power Modes | Deep Sleep: 2.5 µA digital + operational analog - enables always-on capacitive wake-up with sub-3 µA system standby |
| Temperature Range | Grade-S: –40°C to +105°C - qualified per AEC-Q100 Rev G for under-hood and cabin control applications |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, wettable flank option available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | GPIO / CAPSENSE™ CSD / Analog Input / SCB0 SDA/SCL | Multi-function pins supporting simultaneous touch sensing, I²C slave interface, and analog voltage monitoring |
| P1[0]–P1[7] | GPIO / TCPWM0 / SCB1 RX/TX / CAN TX/RX | Direct CAN physical layer connection with internal termination; configurable as PWM outputs for LED dimming or motor control |
| P2[0]–P2[7] | GPIO / ADC VREF / Opamp In/Out / IDAC Output | Supports precision analog front-end design: external reference routing, opamp feedback paths, and programmable current sourcing |
| VDDIO0–VDDIO3 | I/O Power Supply Rails | Independent 1.71–5.5 V rails per port group - enables mixed-voltage interfacing (e.g., 3.3 V MCU logic with 5 V sensor inputs) |
| VDDD / VDDA | Digital & Analog Core Supplies | Separate 1.71–5.5 V domains with internal LDO regulation - isolates noise-sensitive analog circuits from digital switching transients |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Two opamps with Deep Sleep operation, comparator modes, and ADC input buffering - eliminates need for external signal conditioning in low-power sensor nodes |
| Smart I/O Logic | Boolean combinational logic on GPIO inputs/outputs without CPU involvement - enables hardware-level debounce, edge detection, and state machine offload |
| TTCAN Compliance | Time-triggered CAN scheduling with guaranteed message latency - satisfies ASAM MCD-2 MC requirements for synchronized actuator control |
| Hardware CAPSENSE™ Tuning | SmartSense auto-calibration executed in firmware without host CPU cycles - reduces development time for production touch UI validation |
| TRNG | True Random Number Generator compliant with NIST SP 800-90B - provides entropy source for secure key generation in automotive OTA update authentication |
Applications
| Automotive Door Module | Smart HVAC Control Panel |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and ambient lighting via LIN/CAN gateway. IC Role / Device Role / Timing Role: Main MCU executing LIN slave protocol, CAPSENSE™ for capacitive door handle detection, and TCPWM for PWM-controlled LED status indicators. Use Value: Single-chip integration replaces discrete MCU + touch controller + LIN transceiver, reducing BOM count by 3 components and PCB area by 28%. |
Use Scenario: Touch-enabled climate control interface with humidity/temperature sensing and fan speed regulation. IC Role / Device Role / Timing Role: CAPSENSE™ frontend with >5:1 SNR for wet-finger operation, 12-bit ADC for NTC thermistor reading, and TCPWM for variable-speed blower motor control. Use Value: Eliminates external touch controller and analog front-end IC; Deep Sleep current <2.5 µA enables always-on wake-on-touch without battery drain. |
| Electric Parking Brake (EPB) Sensor Node | Automotive Seat Occupancy Detection |
Use Scenario: Compact module monitoring brake pad wear, temperature, and actuator position in EPB caliper assembly. IC Role / Device Role / Timing Role: CAN 2.0B node transmitting TTCAN-scheduled diagnostics, opamp-based strain gauge signal conditioning, and TRNG for secure firmware signature verification. Use Value: AEC-Q100 Grade-S qualification ensures reliability at 105°C; integrated analog blocks reduce external component count for space-constrained caliper mounting. |
Use Scenario: Capacitive seat mat detecting occupant presence, weight class, and posture for airbag deployment logic. IC Role / Device Role / Timing Role: High-SNR CSD block with SmartSense calibration, GPIO-driven segmented LCD for driver feedback, and SCB-based SPI interface to main ECU. Use Value: On-chip CAPSENSE™ meets FMVSS 208 capacitance threshold requirements; hardware auto-tuning cuts calibration time per vehicle build by 12 minutes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144W | ARM Cortex-M4F @ 112 MHz, 512 KB flash, no integrated CAPSENSE™, requires external touch controller | Better floating-point performance for motor control algorithms; lacks on-chip capacitive sensing | Select when advanced motor control or safety ASIL-B decomposition is required; not suitable for cost-sensitive touch HMI |
| Renesas RL78/F14 | 16-bit RL78 core @ 32 MHz, 256 KB flash, 20 KB RAM, no CAN FD or TTCAN, limited analog integration | Lower power in STOP mode (0.35 µA), but no hardware CAPSENSE™ or TCPWM kill signal capability | Prefer for ultra-low-power body control modules without touch or time-critical CAN; lacks automotive touch interface capability |
Compared with CY8C4127LQE-S453, the S32K144W offers higher compute throughput but adds BOM complexity for touch, while the RL78/F14 achieves lower static current but cannot meet CAPSENSE™ SNR or TTCAN timing requirements for modern HMI and chassis networks.
Availability
CY8C4127LQE-S453 is available at Aetrix Electronics and suitable for automotive body electronics, smart sensor nodes, capacitive HMI systems, and chassis control modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4127LQE-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 microcontrollers, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4127LQE-S453 belongs to the PSoC™ 4100S Plus product line, designed specifically for AEC-Q100-compliant automotive human-machine interfaces, sensor fusion nodes, and distributed electronic control units requiring integrated analog, digital, and communication resources.
FAQ
Does CY8C4127LQE-S453 support CAN FD?
No. CY8C4127LQE-S453 implements CAN 2.0B with time-triggered capability (TTCAN) per ISO 11898-1, but does not support CAN FD data rates or flexible data-length frames. It is intended for deterministic chassis and body network messaging, not high-bandwidth infotainment backbones.
What is the maximum operating frequency of the internal main oscillator (IMO)?
The internal main oscillator (IMO) is factory-trimmed to ±2% accuracy at 48 MHz and can be used directly as the system clock source without external crystal. It supports dynamic frequency scaling down to 1 MHz for low-power operation, with automatic clock failover to ILO on IMO failure.
Can all GPIO pins be used simultaneously for CAPSENSE™ and analog functions?
Yes. All 48 GPIO pins support CAPSENSE™ CSD functionality, and up to 24 pins can be configured as analog inputs/outputs concurrently. Pin multiplexing is resolved at design time in PSoC™ Creator or ModusToolbox™, with hardware arbitration preventing conflicting resource assignments.
Is the TRNG certified to any cryptographic standards?
The TRNG meets NIST SP 800-90B entropy source requirements and is validated for use in Infineon's Secure Boot and OTA firmware signing implementations. It is not FIPS 140-2 certified as a standalone module, but serves as the entropy foundation for certified secure elements in PSoC™ 4100S Plus-based designs.
CY8C4127LQE-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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4127LQE-S453 FAQ
1.How can I place an order for CY8C4127LQE-S453 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127LQE-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 CY8C4127LQE-S453 reliable?
The price and inventory of CY8C4127LQE-S453 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127LQE-S453 is usually 5 days.
3.What payment methods are accepted for CY8C4127LQE-S453?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127LQE-S453 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127LQE-S453?
CY8C4127LQE-S453 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127LQE-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 CY8C4127LQE-S453?
For technical support, including CY8C4127LQE-S453 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127LQE-S453 requirements.
6.How does Aetrix verify that CY8C4127LQE-S453 is sourced from the original manufacturer or authorized distributors?
All CY8C4127LQE-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 CY8C4127LQE-S453 meets industry standards.
7.What is the process for return or replacement of CY8C4127LQE-S453?
All CY8C4127LQE-S453 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127LQE-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 CY8C4127LQE-S453 part is unused and in its original packaging.
Return procedure for CY8C4127LQE-S453:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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