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Infineon Technologies CY8C4146LQE-S253
- Part No.:
- CY8C4146LQE-S253
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQE-S253.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,327
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Product details
Overview
CY8C4146LQE-S253 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 (SCB), eight 16-bit TCPWM units, CAN 2.0B with TTCAN support, and programmable analog blocks - deployed in automotive body control modules requiring robust touch interfaces and real-time motor control.
For engineers reviewing the CY8C4146LQE-S253 datasheet, CY8C4146LQE-S253 pinout, CY8C4146LQE-S253 application, or CY8C4146LQE-S253 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ SNR >5:1, CAN 2.0B/TTCAN compliance, Deep Sleep current ≤2.5 µA, and GPIO flexibility across 54 pins with programmable drive strength and slew rate.
Technical Context
The device integrates a dual-domain clock system with a 48-MHz PLL-driven core clock, independent 32-kHz WCO for RTC, and ±2% IMO for low-power wake-up timing. Its analog subsystem features two opamps supporting ADC input buffering and comparator modes, plus a 12-bit 1-Msps SAR ADC with channel sequencer and signal averaging.
Digital resources include eight TCPWM blocks supporting center-aligned PWM and quadrature decoding, five SCBs configurable as I²C/SPI/UART/LIN, and a dedicated CAN 2.0B block with TTCAN time-triggered scheduling - enabling deterministic communication in safety-critical vehicle networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - enables real-time deterministic execution of automotive control loops and sensor fusion algorithms. |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - supports secure bootloader storage, OTA update partitioning, and real-time data buffering without external memory. |
| Operating Voltage | 1.71 V to 5.5 V - accommodates wide automotive battery voltage transients (cold crank, load dump) without external regulators. |
| Temperature Grade | AEC-Q100 Grade-S (–40°C to +105°C) - qualified for under-hood applications including HVAC actuators and lighting control units. |
| CAPSENSE™ Performance | Sigma-delta CSD with SNR >5:1 and water tolerance - delivers reliable touch operation in high-humidity or condensing environments (e.g., center console panels). |
| CAN Interface | CAN 2.0B with TTCAN support - provides time-triggered message scheduling for synchronized actuator control in distributed chassis systems. |
| Low-Power Mode | Deep Sleep mode with 2.5 µA digital current and operational analog - enables always-on capacitive wake-up while meeting ISO 16750-2 quiescent current requirements. |
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 |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power supply domains | Independent 1.71–5.5 V domains per port group enable mixed-voltage interface (e.g., 3.3 V MCU logic + 5 V sensor inputs). |
| 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 simplify PCB layout. |
| CAN_TX / CAN_RX | Dedicated CAN physical layer interface | Internal termination and slew-rate control meet ISO 11898-2 EMC requirements without external components. |
| XTAL_IN / XTAL_OUT | External crystal oscillator connection | Supports 4–33 MHz ECO for precise timing in LIN/CAN synchronization and RTC accuracy. |
| WCO_IN / WCO_OUT | 32-kHz watch crystal oscillator | Enables low-power RTC operation during Deep Sleep with ±20 ppm stability over temperature. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual firmware tuning and maintains SNR >5:1 across aging, temperature drift, and contamination. |
| Reconfigurable SCBs | Five serial blocks dynamically switch between I²C/SPI/UART/LIN protocols at runtime - reduces BOM count and enables multi-sensor hub consolidation. |
| Programmable TCPWM | Eight 16-bit timers support center-aligned PWM with comparator-triggered kill signals - essential for BLDC motor gate driver safety interlocks. |
| True Random Number Generator (TRNG) | On-chip entropy source compliant with NIST SP 800-90B - enables FIPS 140-2 Level 1 cryptographic key generation without external RNG ICs. |
| GPIO drive flexibility | Configurable drive strength (2–12 mA), slew rate (slow/fast), and pull-up/down - simplifies interface to diverse loads (LEDs, relays, sensors) without discrete buffers. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Integrated window lift, mirror fold, and lock/unlock control with capacitive touch buttons and LIN communication to body domain controller. IC Role / Device Role / Timing Role: Main MCU executing motor control algorithms, CAPSENSE™ touch processing, and LIN slave protocol stack. Use Value: Single-chip integration replaces discrete MCU + touch controller + LIN transceiver, reducing board area by 35% and eliminating inter-IC signal integrity risks. | Use Scenario: Touch-enabled HVAC interface with ambient light adaptive backlighting and fan speed PWM control. IC Role / Device Role / Timing Role: Capacitive sensing front-end with SAR ADC for thermistor reading and TCPWM for 25 kHz fan drive with center-aligned modulation. Use Value: Hardware-based SmartSense ensures consistent button response across condensation and glove contact, while Deep Sleep enables <3 µA standby current. |
| Electronic Parking Brake (EPB) | LED Headlamp Driver |
Use Scenario: Safety-critical parking brake actuation with dual CAN channels (control + diagnostics) and redundant motor current monitoring. IC Role / Device Role / Timing Role: CAN 2.0B/TTCAN master coordinating brake caliper position feedback and fault reporting via time-triggered frames. Use Value: Deterministic TTCAN scheduling guarantees sub-100 µs latency for emergency release commands, meeting ASIL-B timing requirements. | Use Scenario: Adaptive driving beam (ADB) control with dynamic LED segment dimming, thermal monitoring, and CAN-based beam pattern updates. IC Role / Device Role / Timing Role: PWM generator with dead-time insertion and analog comparator-based overtemperature shutdown. Use Value: Programmable TCPWM outputs drive high-side MOSFETs with precise 10 ns dead-time control, preventing shoot-through during fast switching. |
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; larger flash (512 KB); no integrated CAPSENSE™; requires external touch controller | Better floating-point performance for motor control math; lacks hardware-accelerated touch sensing | Select when advanced DSP operations outweigh touch integration needs. |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz; 256 KB flash; built-in capacitive touch but no CAN FD or TTCAN; lower SNR (3:1) | Lower cost for non-safety-critical interior controls; insufficient for time-triggered chassis networks | Select for cost-sensitive cabin modules where TTCAN and ASIL-B timing are not required. |
Compared with S32K144 and RL78/F14, CY8C4146LQE-S253 uniquely combines AEC-Q100 Grade-S qualification, on-die CAPSENSE™ with SmartSense, TTCAN, and sub-3 µA Deep Sleep - making it optimal for space-constrained, touch-integrated automotive ECUs requiring deterministic communication and ultra-low quiescent power.
Availability
CY8C4146LQE-S253 is available at Aetrix Electronics and suitable for automotive body control modules, climate control panels, electronic parking brake systems, and LED headlamp drivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY8C4146LQE-S253 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 MCUs, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4146LQE-S253 belongs to the PSoC™ 4100S Plus product line, designed specifically for automotive interior electronics requiring integrated capacitive sensing, functional safety-ready peripherals, and AEC-Q100-compliant mixed-signal control.
FAQ
Does CY8C4146LQE-S253 support CAN FD?
No. CY8C4146LQE-S253 implements CAN 2.0B with optional time-triggered CAN (TTCAN) functionality, but does not support CAN FD data rates or extended frame formats. Its CAN block complies with ISO 11898-1:2015 for classical CAN only.
What development tools are officially supported for this device?
Infineon officially supports ModusToolbox™ (v3.1+) and legacy PSoC™ Creator v4.4 for CY8C4146LQE-S253. Hardware debugging requires MiniProg3 or KitProg3 programmers; the CY8CKIT-149 prototyping kit provides full pin access and CAPSENSE™ evaluation capability.
Is the TRNG certified to any cryptographic standards?
The TRNG meets NIST SP 800-90B entropy requirements and is validated for use in Infineon's Secure Boot and key derivation flows. It is not FIPS 140-2 certified as a standalone module, but is integrated into PSoC™ 4100S Plus security features compliant with ISO/SAE 21434 threat analysis guidelines.
Can all 54 GPIO pins be used simultaneously as CAPSENSE™ inputs?
No. While all GPIO pins support CAPSENSE™ functionality, the CSD block has hardware resource limits: up to 32 electrodes can be scanned per scan group, and total electrode count is constrained by routing resources and scan time. Practical designs typically use 16–24 electrodes with mutual-capacitance or shielded self-capacitance configurations.
CY8C4146LQE-S253 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, Temp Sensor, 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, 12x12b SAR; D/A 2x7b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4146LQE-S253 FAQ
1.How can I place an order for CY8C4146LQE-S253 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQE-S253 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 CY8C4146LQE-S253 reliable?
The price and inventory of CY8C4146LQE-S253 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQE-S253 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQE-S253?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQE-S253 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQE-S253?
CY8C4146LQE-S253 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQE-S253 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 CY8C4146LQE-S253?
For technical support, including CY8C4146LQE-S253 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQE-S253 requirements.
6.How does Aetrix verify that CY8C4146LQE-S253 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQE-S253 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 CY8C4146LQE-S253 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQE-S253?
All CY8C4146LQE-S253 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQE-S253, 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 CY8C4146LQE-S253 part is unused and in its original packaging.
Return procedure for CY8C4146LQE-S253:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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