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Infineon Technologies CY8C4127LQE-S453T
- Part No.:
- CY8C4127LQE-S453T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4127LQE-S453T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,201
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Product details
Overview
CY8C4127LQE-S453T 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, integrated CAPSENSE™ capacitive sensing with SmartSense auto-tuning, and a CAN 2.0B block supporting time-triggered CAN (TTCAN). It targets body control modules, smart sensors, and automotive HMI systems requiring robust touch interface and deterministic communication.
For engineers reviewing the CY8C4127LQE-S453T datasheet, CY8C4127LQE-S453T pinout, CY8C4127LQE-S453T application, or CY8C4127LQE-S453T equivalent, key selection criteria include its 54 GPIO count with full CAPSENSE™/analog/digital reconfigurability, Deep Sleep current of 2.5 µA with operational analog, and hardware-supported TTCAN timing compliance for safety-critical automotive networks.
Technical Context
This device implements a tightly integrated mixed-signal SoC architecture where the Arm® Cortex®-M0+ core coordinates programmable analog blocks (two opamps, 12-bit 1-Msps SAR ADC, two IDACs), digital logic (Smart I/O, eight TCPWM blocks), and fixed-function peripherals (five SCBs, CAN 2.0B, TRNG). Its clock system includes ECO (4–33 MHz), PLL, WCO (32 kHz), IMO (±2%), and ILO for hierarchical timing control across power modes.
The CAPSENSE™ subsystem uses capacitive sigma-delta (CSD) modulation with >5:1 SNR and water tolerance, while the CAN block supports TTCAN with hardware timestamping and synchronized message scheduling-enabling deterministic response in distributed automotive control loops without software intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - delivers deterministic real-time execution with Thumb-2 instruction set and NVIC for low-latency interrupt handling. |
| Memory | 128 KB flash (with Read Accelerator) + 16 KB SRAM - enables complex firmware with fast code fetch and dual-bank operation for safe OTA updates. |
| Analog Peripherals | 12-bit 1-Msps SAR ADC (differential/single-ended), two opamps (Deep Sleep capable), two IDACs - supports high-fidelity sensor signal conditioning and self-capacitance measurement in ultra-low-power modes. |
| Digital Peripherals | Five SCBs (I²C/SPI/UART/LIN), eight TCPWM blocks, CAN 2.0B with TTCAN - provides flexible serial connectivity and precise motor control timing with hardware kill signal triggering. |
| Power & Temp | 1.71–5.5 V supply, Deep Sleep current = 2.5 µA (analog active), Grade-S temp range (–40°C to +105°C) - ensures reliable operation in under-hood automotive environments with minimal quiescent draw. |
| GPIO & Packaging | 54 programmable GPIOs, 48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) - supports dense routing for multi-function HMI and sensor fusion designs with configurable drive strength and slew rate. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, wettable flank option available for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Four independent 1.71–5.5 V supplies enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V analog sensors). |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[7], P5[0]–P5[5] | Programmable GPIOs | All 54 pins support CAPSENSE™, analog input/output, digital logic, or serial interface functions via hardware routing matrix. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Drive 4–33 MHz ECO for precise clock source; required for CAN bit timing accuracy and USB-like timing stability. |
| CAN_TX / CAN_RX | Dedicated CAN transceiver interface | Direct connection to external CAN PHY; supports TTCAN timestamping and synchronization with internal clock domain. |
| SWDCLK / SWDIO | ARM Serial Wire Debug interface | Two-pin debug port enabling non-intrusive firmware programming, real-time trace, and breakpoint debugging without halting CAN or CAPSENSE™ operation. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CAPSENSE™ with SmartSense | Automatic calibration and noise rejection eliminates manual tuning; maintains >5:1 SNR under water or oil contamination for automotive touch panels. |
| Time-Triggered CAN (TTCAN) | Hardware-enforced message scheduling with microsecond-level timestamp resolution enables deterministic network behavior for ASIL-B compliant systems. |
| Deep Sleep with Active Analog | 2.5 µA system current while SAR ADC and opamps remain operational - enables continuous low-power sensor monitoring without wake-up latency. |
| Programmable Smart I/O | Boolean logic on GPIO inputs/outputs without CPU involvement - offloads debounce, edge detection, and state machine tasks from firmware. |
| TRNG with NIST SP800-90B compliance | Entropy source certified for cryptographic key generation in secure boot and OTA update authentication workflows. |
Applications
| Automotive Door Module | Smart Rearview Mirror HMI |
|---|---|
Use Scenario: Detect window lift position, lock status, and ambient light via integrated analog front-end and capacitive touch buttons. IC Role / Device Role / Timing Role: Central MCU managing CAN bus communication with body control unit, executing CAPSENSE™ gesture recognition, and driving PWM-controlled LED backlighting. Use Value: Single-chip integration reduces BOM count by eliminating discrete touch controller and CAN transceiver; Deep Sleep mode extends battery life during vehicle sleep cycles. | Use Scenario: Replace mechanical mirror adjustment switches with waterproof capacitive touch controls and auto-dimming sensor interface. IC Role / Device Role / Timing Role: Real-time sensor fusion hub combining ambient light ADC, IR proximity detection, and CAN-based mirror position feedback. Use Value: CSD-based CAPSENSE™ maintains >5:1 SNR despite condensation or rain film; TTCAN ensures synchronized dimming response across multi-mirror clusters. |
| Engine Bay Temperature Sensor Node | Seat Occupancy Detection System |
Use Scenario: Monitor coolant, oil, and intake air temperature using precision analog front-end and compensate readings in real time. IC Role / Device Role / Timing Role: Low-power sensor node with 12-bit SAR ADC oversampling, opamp-based signal conditioning, and CAN reporting at 100 ms intervals. Use Value: Grade-S temperature rating (–40°C to +105°C) and 2.5 µA Deep Sleep current enable direct mounting near engine components without external thermal shielding. | Use Scenario: Detect occupant presence and posture using multi-electrode capacitive sensing embedded in seat upholstery. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ controller with SmartSense auto-calibration and differential electrode scanning for false-trigger immunity. Use Value: Hardware-accelerated CSD modulation achieves >5:1 SNR through fabric and foam layers; IDACs provide programmable current sources for adaptive electrode drive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144HAT0MLHT | ARM Cortex-M4F core @ 112 MHz, 512 KB flash, no integrated CAPSENSE™, includes Ethernet MAC | Better suited for gateway or ADAS preprocessing; lacks hardware touch engine and requires external capacitive controller | Select when higher compute throughput and Ethernet connectivity outweigh integrated touch capability |
| Renesas RL78/F14 | 16-bit RL78 core @ 32 MHz, 256 KB flash, built-in touch I/O but no TTCAN or TRNG | Lower cost for basic body control; limited to legacy CAN 2.0A and lacks deterministic timing features | Select for cost-sensitive entry-level modules where TTCAN and cryptographic security are not required |
Compared with S32K144HAT0MLHT and RL78/F14, CY8C4127LQE-S453T uniquely combines automotive-grade CAPSENSE™, TTCAN, and sub-3 µA Deep Sleep with active analog - making it optimal for space-constrained, touch-enabled nodes requiring deterministic timing and low-power always-on sensing.
Availability
CY8C4127LQE-S453T is available at Aetrix Electronics and suitable for automotive body electronics, smart sensor nodes, and HMI control units requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for CY8C4127LQE-S453T 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.
CY8C4127LQE-S453T belongs to the PSoC™ 4100S Plus product line, engineered specifically for automotive interior electronics requiring integrated capacitive sensing, deterministic CAN communication, and ultra-low-power operation across extended temperature ranges.
FAQ
What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4127LQE-S453T?
The Arm® Cortex®-M0+ core operates at a maximum frequency of 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 entire Grade-S temperature range (–40°C to +105°C) and all supply voltages from 1.71 V to 5.5 V.
Does CY8C4127LQE-S453T support hardware-based time-triggered CAN (TTCAN)?
Yes, the integrated CAN 2.0B block supports TTCAN with hardware timestamping, synchronized message scheduling, and deterministic transmission windows. It meets ISO 11898-1:2015 requirements for time-triggered communication and enables ASIL-B compliant network behavior without CPU intervention for critical timing events.
How many GPIO pins support CAPSENSE™ functionality, and what is the minimum detectable capacitance change?
All 54 GPIO pins are CAPSENSE™-capable. The CSD-based sensing engine achieves <1 fF resolution with >5:1 signal-to-noise ratio under worst-case conditions (e.g., water overlay), enabled by hardware modulation, SmartSense auto-calibration, and differential electrode scanning modes.
What development tools are officially supported for firmware and hardware design with CY8C4127LQE-S453T?
Infineon officially supports ModusToolbox™ (IDE-neutral, GitHub-hosted libraries, PDL, CAPSENSE™ middleware) and PSoC™ Creator (Windows-only schematic-driven IDE with automatic analog/digital routing). Both tools provide validated BSPs for CY8CKIT-041-41XX and CY8CKIT-149 evaluation kits, including pre-certified CAN and CAPSENSE™ example projects.
CY8C4127LQE-S453T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4000S
- Packaging:
- Tape & Reel (TR)
- 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-S453T FAQ
1.How can I place an order for CY8C4127LQE-S453T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127LQE-S453T 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-S453T reliable?
The price and inventory of CY8C4127LQE-S453T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127LQE-S453T is usually 5 days.
3.What payment methods are accepted for CY8C4127LQE-S453T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127LQE-S453T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127LQE-S453T?
CY8C4127LQE-S453T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127LQE-S453T 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-S453T?
For technical support, including CY8C4127LQE-S453T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127LQE-S453T requirements.
6.How does Aetrix verify that CY8C4127LQE-S453T is sourced from the original manufacturer or authorized distributors?
All CY8C4127LQE-S453T 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-S453T meets industry standards.
7.What is the process for return or replacement of CY8C4127LQE-S453T?
All CY8C4127LQE-S453T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127LQE-S453T, 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-S453T part is unused and in its original packaging.
Return procedure for CY8C4127LQE-S453T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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