Infineon Technologies CY8C4148AZES545XQLA1
- Part No.:
- CY8C4148AZES545XQLA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4148AZES545XQLA1.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
CY8C4148AZES545XQLA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Max microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 384 KB flash, 32 KB SRAM, integrated CAN FD (up to 5 Mbps), and multi-sense capacitive sensing (MSC) with >5:1 SNR. It serves as a reconfigurable system-on-chip for body control modules, smart sensors, and infotainment interfaces requiring mixed-signal programmability and functional safety support.
For engineers reviewing the CY8C4148AZES545XQLA1 datasheet, CY8C4148AZES545XQLA1 pinout, CY8C4148AZES545XQLA1 application, or CY8C4148AZES545XQLA1 equivalent, key selection criteria include CAN FD timing compliance, Deep Sleep current (2.5 µA), MSC water-tolerance capability, TCPWM quadrature decoding, and ModusToolbox™ API compatibility for rapid CAPSENSE™ and analog-peripheral configuration.
Technical Context
The device integrates a single-layer AHB-Lite interconnect linking the Cortex-M0+ core to programmable analog (2 opamps, 12-bit SAR ADC with temperature sensor), digital (8 TCPWM blocks, 5 SCBs), and security (AES/SHA/TRNG) peripherals. Its Smart I/O matrix enables runtime reconfiguration of GPIO functions without CPU intervention.
System-level timing relies on multiple clock sources: 4–33 MHz ECO with PLL (for 48 MHz), 32-kHz WCO, ±2% IMO, and 40-kHz ILO - all supporting autonomous operation in Deep Sleep mode while maintaining analog functionality and wake-on-comparator events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - delivers deterministic real-time control with Thumb-2 instruction set and NVIC interrupt handling. |
| Flash / SRAM | 384 KB flash with Read Accelerator; 32 KB SRAM - supports firmware over-the-air updates and dual-bank execution with minimal latency. |
| CAN FD Speed | Up to 5 Mbps data phase - enables high-bandwidth vehicle network communication compliant with ISO 11898-1:2015. |
| SAR ADC | 12-bit, 1 Msps, differential/single-ended, channel sequencer with signal averaging - provides precision sensor acquisition with hardware-based noise reduction. |
| Deep Sleep Current | 2.5 µA digital system current - sustains RTC, comparators, and MSC wake-up capability during extended vehicle sleep states. |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio - ensures reliable touch detection under wet conditions and EMI-rich automotive environments. |
| GPIO Count | Up to 84 pins, all configurable for analog/digital/CAPSENSE™ - eliminates external muxing for multi-function I/O consolidation. |
Pinout & Package
Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, automotive-grade moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]–P0[7] | Port 0 GPIO bank | Supports CAPSENSE™, analog input, UART TX/RX, and TCPWM capture - fully reconfigurable per pin via register write. |
| CANFD_TX / CANFD_RX | Dedicated CAN FD transceiver interface | Hardwired to internal CAN FD block; requires external 120-Ω termination and common-mode choke for EMC compliance. |
| XTAL_IN / XTAL_OUT | External crystal oscillator inputs | Accepts 4–33 MHz crystal for precise clock generation; enables PLL lock to 48 MHz with <±50 ppm stability. |
| VDDIO0–VDDIO3 | I/O power domains | Independent 1.71–5.5 V supplies per port group - allows mixed-voltage interfacing (e.g., 3.3 V MCU logic with 5 V sensor outputs). |
| SWDCLK / SWDIO | ARM Serial Wire Debug interface | Enables non-intrusive debugging and programming without halting real-time peripherals during development and validation. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware SmartSense tuning | Automatic MSC calibration at runtime - eliminates manual threshold tuning across temperature and humidity gradients in touch HMI designs. |
| Programmable analog CTBm blocks | Two continuous-time opamps with high-drive external mode (50 mA sink/source) - drive resistive loads directly without external buffers in sensor signal conditioning. |
| Reconfigurable SCBs | Five Serial Communication Blocks supporting I²C/SPI/UART/LIN in any combination - reduces BOM count by consolidating protocol interfaces into shared hardware resources. |
| Crypto acceleration engine | Dedicated AES-128/256, SHA-1/256, TRNG, and CRC units - offloads encryption from CPU, enabling secure OTA firmware updates with <10 µs AES round latency. |
| Quadrature decoder in TCPWM | Hardware-based position/speed decoding from incremental encoders - operates autonomously in Deep Sleep, triggering wake-up on direction change or index pulse. |
Applications
| Body Control Module (BCM) | Automotive Touch HMI |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and window lifters in modern vehicles. IC Role / Device Role / Timing Role: Main system controller executing real-time CAN FD messaging, PWM-driven LED dimming, and analog sensor monitoring (e.g., ambient light, rain detection). Use Value: Single-chip integration replaces discrete MCU + CAN transceiver + analog front-end, reducing PCB area by 35% and qualifying to AEC-Q100 Grade-S. | Use Scenario: Capacitive touch panel for center console or steering wheel controls in EVs and ADAS-equipped vehicles. IC Role / Device Role / Timing Role: CAPSENSE™ master with SmartSense auto-tuning and water-tolerant MSC block managing up to 64 electrodes. Use Value: Maintains >5:1 SNR under condensation and glove use, eliminating false triggers without firmware recalibration across production lots. |
| Smart Sensor Node | Infotainment Subsystem |
Use Scenario: Distributed cabin air quality or seat occupancy sensing node communicating via CAN FD to head unit. IC Role / Device Role / Timing Role: Low-power sensor aggregator with SAR ADC (temperature/humidity), LP comparators, and Deep Sleep wake-on-event capability. Use Value: Achieves 2.5 µA system current in Deep Sleep while retaining analog monitoring - extends battery life in always-on sensor nodes beyond 10 years. | Use Scenario: Audio interface and display driver for rear-seat entertainment systems. IC Role / Device Role / Timing Role: I²S Master TX driving DACs, LCD segment driver on GPIOs, and SCB-based UART for IR remote control parsing. Use Value: Eliminates separate audio codec and display controller ICs; supports 16-bit stereo I²S at 44.1 kHz with <1 LSB THD+N. |
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 @ 112 MHz; includes Ethernet MAC but no integrated CAPSENSE™ or MSC block | Better suited for gateway applications requiring CAN FD + Ethernet bridging; lacks hardware-accelerated touch sensing | Select when needing higher compute throughput and network bridging, not capacitive HMI. |
| Renesas RH850/F1L | 32-bit RXv2 core @ 120 MHz; AEC-Q100 Grade-1 (–40°C to +125°C); no integrated analog reconfigurability | Targeted at powertrain and chassis control with ASIL-B support; requires external ADC/opamp for sensor signal chain | Select for ASIL-B functional safety certification where programmable analog is not required. |
Compared with S32K144HAT0MLHT and RH850/F1L, CY8C4148AZES545XQLA1 uniquely combines CAN FD, hardware CAPSENSE™ tuning, and low-power analog programmability in a single AEC-Q100 Grade-S package - making it optimal for cost-sensitive, space-constrained automotive HMI and sensor nodes where mixed-signal flexibility outweighs raw CPU performance.
Availability
CY8C4148AZES545XQLA1 is available at Aetrix Electronics and suitable for body control modules, automotive touch HMIs, smart sensor nodes, and infotainment subsystems requiring stable component supply, long-term automotive qualification, and full lifecycle traceability.
Supply support for CY8C4148AZES545XQLA1 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, radar sensors, and security solutions, with global R&D centers and automotive-focused wafer fabs.
CY8C4148AZES545XQLA1 belongs to the PSoC™ 4100S Max product line, designed specifically for automotive interior electronics requiring reconfigurable analog/digital peripherals, functional safety readiness, and seamless integration with ModusToolbox™ for rapid CAPSENSE™ and CAN FD development.
FAQ
Does CY8C4148AZES545XQLA1 support AEC-Q100 Grade-1 temperature range?
No. This part is qualified to AEC-Q100 Grade-S (–40°C to +105°C), not Grade-1 (–40°C to +125°C). The Grade-E variant (CY8C4148AZES545XQLA2) supports up to +125°C and is designated for under-hood applications. Always verify temperature grade suffixes before thermal design validation.
Can the internal opamps drive capacitive touch electrodes directly?
No. The two CTBm opamps are used for analog signal conditioning (e.g., sensor amplification, filtering) and ADC input buffering-not for direct electrode driving. CAPSENSE™ electrode excitation is handled exclusively by the dedicated Multi-Sense Converter (MSC) block with hardware-based current sources and charge-transfer logic.
Is CAN FD physical layer transceiver integrated into CY8C4148AZES545XQLA1?
No. The device contains only the CAN FD protocol controller and bit-timing logic. An external CAN FD transceiver (e.g., Infineon TLE9251VS) must be used for physical layer signaling, bus termination, and fault protection. The CANFD_TX/RX pins are CMOS-level digital outputs/inputs compliant with ISO 11898-1.
What debug interface does CY8C4148AZES545XQLA1 use, and is JTAG supported?
It uses ARM Serial Wire Debug (SWD) with SWDCLK and SWDIO pins. JTAG is not implemented - only SWD is supported for programming and real-time debugging. The on-chip debug module supports breakpoints, watchpoints, and memory access without halting TCPWM or MSC operation during active sensing or motor control.
CY8C4148AZES545XQLA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C4100S
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 54
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4148AZES545XQLA1 FAQ
1.How can I place an order for CY8C4148AZES545XQLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4148AZES545XQLA1 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 CY8C4148AZES545XQLA1 reliable?
The price and inventory of CY8C4148AZES545XQLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4148AZES545XQLA1 is usually 5 days.
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CY8C4148AZES545XQLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4148AZES545XQLA1 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 CY8C4148AZES545XQLA1?
For technical support, including CY8C4148AZES545XQLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4148AZES545XQLA1 requirements.
6.How does Aetrix verify that CY8C4148AZES545XQLA1 is sourced from the original manufacturer or authorized distributors?
All CY8C4148AZES545XQLA1 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 CY8C4148AZES545XQLA1 meets industry standards.
7.What is the process for return or replacement of CY8C4148AZES545XQLA1?
All CY8C4148AZES545XQLA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4148AZES545XQLA1, 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 CY8C4148AZES545XQLA1 part is unused and in its original packaging.
Return procedure for CY8C4148AZES545XQLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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