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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Infineon Technologies CY8C4148AZAS555XQLA1

Name: CY8C4148AZAS555XQLA1
Brand: Infineon Technologies
SKU: CY8C4148AZAS555XQLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY8C4148AZAS555XQLA1

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 64-LQFP

Datasheet:: CY8C4148AZAS555XQLA1.pdf

Description:: IC MCU 32BIT 256KB FLASH 64LQFP

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Product details

Overview

CY8C4148AZAS555XQLA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Max microcontroller based on the Arm® Cortex®-M0+ CPU running at 48 MHz, featuring 384 KB flash, 32 KB SRAM, CAN FD up to 5 Mbps, and integrated CAPSENSE™ with SmartSense auto-tuning. It supports capacitive touch sensing in harsh environments including water tolerance and high SNR (>5:1), and is used in automotive body control modules requiring robust human-machine interface and real-time motor control.

For engineers reviewing the CY8C4148AZAS555XQLA1 datasheet, CY8C4148AZAS555XQLA1 pinout, CY8C4148AZAS555XQLA1 application, or CY8C4148AZAS555XQLA1 equivalent, key selection considerations include CAN FD timing compliance, Deep Sleep current (2.5 µA), SAR ADC resolution (12-bit, 1-Msps), MSC block SNR performance, and GPIO reconfigurability across analog/digital/CAPSENSE™ functions.

Technical Context

The device integrates a single-layer AHB-Lite interconnect linking the Cortex-M0+ core, 5 reconfigurable Serial Communication Blocks (SCBs), and 8 TCPWM blocks supporting center-aligned PWM and quadrature decoding. Its analog subsystem includes two opamps with Deep Sleep operation, a 12-bit SAR ADC with temperature sensor and channel sequencer, and two low-power comparators - all accessible via any of up to 84 GPIOs.

The programmable architecture enables hardware-level logic synthesis via Smart I/O and Boolean operations on port signals, while the CAN FD block implements ISO 11898-1:2015 compliant frame handling with bit rates up to 5 Mbps and flexible data field lengths. Clocking combines ECO+PLL (48 MHz), WCO (32 kHz), IMO (±2%), and ILO (40 kHz) for deterministic timing across sleep/wake transitions.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm® Cortex®-M0+, 48 MHz - enables 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 complex automotive firmware with fast code execution and buffer-intensive CAPSENSE™/CAN FD processing.
CAN FD Speed	Up to 5 Mbps - meets high-bandwidth vehicle network requirements for ADAS sensor fusion and gateway routing.
SAR ADC	12-bit, 1-Msps, differential/single-ended, with built-in temperature sensor - provides precision sensor acquisition without external signal conditioning.
Deep Sleep Current	2.5 µA digital system current - enables always-on wake-on-touch or CAN bus activity detection in battery-constrained ECUs.
CAPSENSE™ SNR	>5:1 signal-to-noise ratio with water tolerance - ensures reliable touch button operation in humid or wet cabin environments.
GPIO Count	Up to 84 pins, all reconfigurable for analog/CAPSENSE™/digital - eliminates fixed-function pin constraints in multi-sensor HMI designs.

Pinout & Package

This device is packaged in a 100-pin TQFP (Thin Quad Flat Package) with 0.5 mm pitch, lead-free and RoHS-compliant, designed for automotive PCB assembly and thermal reliability under extended temperature cycling.

Pin/Terminal	Circuit Role	Design Meaning
VDDIO0–VDDIO7	I/O power supply domains	Independent 1.71–5.5 V supplies per port group enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V analog sensors).
P0[0]–P9[7]	Programmable GPIOs	All pins support CAPSENSE™, analog input/output, digital logic, and LCD segment drive - no dedicated function pins required.
CANFD_TX / CANFD_RX	CAN FD physical layer interface	Differential pair supporting ISO 11898-1:2015 compliant transceiver connection with internal termination control.
XTAL_IN / XTAL_OUT	External crystal oscillator input/output	Supports 4–33 MHz ECO for precise clock generation; PLL locks to generate stable 48 MHz system clock.
SWDCLK / SWDIO	ARM Serial Wire Debug interface	Two-pin debug interface enabling non-intrusive firmware update and real-time trace in production ECUs.

Key Features

Feature	Design Value
SmartSense auto-tuning	Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning and maintains touch sensitivity across temperature/humidity drift.
Reconfigurable SCBs	Five serial blocks dynamically switch between I²C/SPI/UART/LIN Slave modes at runtime - reduces BOM count in multi-protocol gateways.
Deep Sleep analog retention	Opamps, comparators, and MSC remain active during 2.5 µA Deep Sleep - enables continuous capacitive wake detection without full wake-up latency.
Hardware crypto accelerators	AES-128/256, SHA-256, TRNG, and CRC engines offload security-critical tasks from CPU - essential for secure boot and OTA updates.
Quadrature decoder	Integrated in TCPWM blocks - directly interfaces rotary encoders for HVAC or seat position feedback without external logic.

Applications

Automotive Door Module

Climate Control Panel

Use Scenario: Capacitive touch keys and slider on door trim with proximity wake-up and water splash immunity.

IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing LIN slave communication to body controller, and generating PWM for LED backlight dimming.

Use Value: >5:1 SNR and SmartSense ensure reliable operation after condensation or rain exposure; 100-pin TQFP accommodates full HMI + LIN + CAN FD routing.

Use Scenario: Multi-zone HVAC interface with rotary encoder, temperature display, and fan speed control.

IC Role / Device Role / Timing Role: Real-time motor control via TCPWM (center-aligned PWM), quadrature decoding for encoder input, and I²C-driven LCD segment display.

Use Value: Integrated opamps condition thermistor signals; 12-bit SAR ADC with averaging improves temperature measurement accuracy to ±0.5°C.

Body Control Gateway

Seat Position Memory ECU

Use Scenario: Aggregating LIN slave nodes (door locks, mirrors, lights) and forwarding commands over CAN FD to central domain controller.

IC Role / Device Role / Timing Role: CAN FD master node with 5 Mbps throughput, five SCBs configured as four LIN slaves + one UART debug port.

Use Value: Hardware CAN FD protocol engine ensures deterministic frame scheduling; 384 KB flash stores multiple LIN configuration profiles.

Use Scenario: Storing and recalling seat/mirror positions using non-volatile flash and detecting actuator stall via current sense.

IC Role / Device Role / Timing Role: Motor driver supervisor using comparator-based kill signal triggering and SAR ADC for analog current monitoring.

Use Value: Comparator-triggered TCPWM shutdown responds in <1 µs to prevent motor damage; Deep Sleep mode maintains memory state at 2.5 µA.

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 core, 112 MHz; includes Ethernet MAC but lacks integrated CAPSENSE™ and SmartSense.	Better suited for gateway applications requiring CAN FD + Ethernet bridging; requires external touch controller for HMI.	Select when Ethernet connectivity or floating-point math acceleration is required; avoid if CAPSENSE™ integration and low-BOM HMI are priorities.
Renesas RL78/F14	16-bit RL78 core, 32 MHz; AEC-Q100 qualified but no CAN FD - only classic CAN 1 Mbps.	Cost-optimized for simple body electronics; limited analog resources (10-bit ADC, no opamps).	Choose for legacy CAN-only systems with tight cost targets; not viable for next-gen 5 Mbps CAN FD networks or high-SNR touch.

Compared with S32K144W and RL78/F14, CY8C4148AZAS555XQLA1 uniquely delivers CAPSENSE™-integrated HMI, CAN FD, and Deep Sleep analog retention in a single die - reducing component count and validation effort for automotive interior control units.

Availability

CY8C4148AZAS555XQLA1 is available at Aetrix Electronics and suitable for automotive body control modules, climate control panels, seat memory ECUs, and door module assemblies requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CY8C4148AZAS555XQLA1 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 is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure serving Tier-1 automotive suppliers.

CY8C4148AZAS555XQLA1 belongs to the PSoC™ 4100S Max product line, engineered specifically for AEC-Q100-compliant automotive human-machine interface and distributed control applications demanding integrated analog, programmable logic, and CAN FD connectivity.

FAQ

What is the maximum operating temperature range for CY8C4148AZAS555XQLA1?

CY8C4148AZAS555XQLA1 is qualified to AEC-Q100 Grade-S, supporting continuous operation from –40°C to +105°C ambient temperature. This rating is verified per test condition HTOL (High-Temperature Operating Life) and TC (Temperature Cycling), making it suitable for under-hood and cabin-mounted automotive ECUs where thermal stress exceeds consumer-grade limits.

Does CY8C4148AZAS555XQLA1 support CAN FD with ISO 11898-1:2015 compliance?

Yes - the integrated CAN FD block fully complies with ISO 11898-1:2015, supporting bit rates up to 5 Mbps, flexible data field lengths (up to 64 bytes), and error confinement mechanisms. It includes dedicated message RAM, transmit/receive FIFOs, and hardware timestamping for deterministic scheduling in time-sensitive vehicle networks.

Can all GPIO pins be used for CAPSENSE™ sensing simultaneously?

No - while any GPIO can be assigned to CAPSENSE™, the Multi-Sense Converter (MSC) block has hardware resource limits: up to 32 electrodes supported in parallel scanning mode, with shared analog routing paths. Simultaneous use of all 84 pins for CAPSENSE™ is not possible; practical electrode count depends on scan speed, SNR targets, and mutual-capacitance vs self-capacitance configuration.

Is ModusToolbox™ required to develop firmware for this device?

ModusToolbox™ is Infineon's recommended and fully supported IDE, providing PDL (Peripheral Driver Library), configurators for CAPSENSE™, TCPWM, and SCB, and seamless integration with ARM GCC and OpenOCD. However, the device is compatible with standard Arm®-based toolchains (e.g., Keil MDK, IAR Embedded Workbench) using CMSIS-compliant startup files and linker scripts provided in the official PSoC™ Creator archive.

CY8C4148AZAS555XQLA1 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, CapSense, DMA, I2S, 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 ~ 85°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:

CY8C4148AZAS555XQLA1 FAQ

1.How can I place an order for CY8C4148AZAS555XQLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for CY8C4148AZAS555XQLA1 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 CY8C4148AZAS555XQLA1 reliable?

The price and inventory of CY8C4148AZAS555XQLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4148AZAS555XQLA1 is usually 5 days.

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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4148AZAS555XQLA1 transactions.

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4.How is shipping managed for CY8C4148AZAS555XQLA1?

CY8C4148AZAS555XQLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY8C4148AZAS555XQLA1 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 CY8C4148AZAS555XQLA1?

For technical support, including CY8C4148AZAS555XQLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4148AZAS555XQLA1 requirements.

6.How does Aetrix verify that CY8C4148AZAS555XQLA1 is sourced from the original manufacturer or authorized distributors?

All CY8C4148AZAS555XQLA1 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 CY8C4148AZAS555XQLA1 meets industry standards.

7.What is the process for return or replacement of CY8C4148AZAS555XQLA1?

All CY8C4148AZAS555XQLA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4148AZAS555XQLA1, 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 CY8C4148AZAS555XQLA1 part is unused and in its original packaging.

Return procedure for CY8C4148AZAS555XQLA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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