Infineon Technologies CY8C4149LDAS553XQLA1

Overview

CY8C4149LDAS553XQLA1 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 targets body control modules, smart sensors, and automotive HMI systems requiring robust capacitive touch in harsh environments.

For engineers reviewing the CY8C4149LDAS553XQLA1 datasheet, CY8C4149LDAS553XQLA1 pinout, CY8C4149LDAS553XQLA1 application, or CY8C4149LDAS553XQLA1 equivalent, key selection criteria include CAN FD compliance, Deep Sleep current (2.5 µA), 12-bit SAR ADC with temperature sensor, programmable analog opamps operating in low-power mode, and 84 GPIOs supporting CAPSENSE™, LCD segment drive, and reconfigurable SCBs for I²C/SPI/UART/LIN.

Technical Context

The device integrates a single-layer AHB-Lite interconnect linking the Cortex-M0+ core, memory subsystem (384 KB flash + 32 KB SRAM), and heterogeneous peripherals including five reconfigurable Serial Communication Blocks (SCBs), eight TCPWM units with quadrature decode and kill-signal triggering, and a dedicated CAN FD controller compliant with ISO 11898-1:2015.

Analog resources include two continuous-time opamps (CTBm) with internal/external drive modes and ADC input buffering, a 12-bit 1-Msps SAR ADC with differential/single-ended inputs and channel sequencer, two low-power comparators active in Deep Sleep, and a multi-sense converter (MSC) block delivering >5:1 SNR and water-tolerant capacitive sensing via hardware-accelerated SmartSense tuning.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, wettable flank capable.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with S32K144HAT0MLHT and RL78/F14, CY8C4149LDAS553XQLA1 uniquely combines CAN FD, hardware SmartSense, and LCD segment drive in a single AEC-Q100 Grade-S package-enabling consolidated HMI + control functionality without external analog or display ICs.

Availability

CY8C4149LDAS553XQLA1 is available at Aetrix Electronics and suitable for automotive body control modules, capacitive HMI interfaces, occupancy sensing systems, and EPS diagnostic nodes requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CY8C4149LDAS553XQLA1 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, and security solutions, with global R&D and manufacturing infrastructure.

CY8C4149LDAS553XQLA1 belongs to the PSoC™ 4100S Max product line, designed specifically for AEC-Q100-compliant automotive applications demanding integrated analog sensing, capacitive HMI, CAN FD connectivity, and ultra-low-power operation in extended temperature environments.

FAQ

What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4149LDAS553XQLA1?

The Arm® Cortex®-M0+ core operates at a maximum frequency of 48 MHz, achieved via the internal PLL driven by the 4–33 MHz external crystal oscillator (ECO). This frequency is fully supported across the full Grade-S temperature range (–40°C to +105°C) and meets AEC-Q100 timing requirements for automotive use.

Does CY8C4149LDAS553XQLA1 support CAN FD with ISO 11898-1:2015 compliance?

Yes, the integrated CAN FD block supports data rates up to 5 Mbps and complies with ISO 11898-1:2015, including bit-rate switching, flexible data-length payloads (up to 64 bytes), and enhanced CRC protection. Hardware acceleration handles protocol framing, filtering, and error handling without CPU overhead.

How many GPIO pins support CAPSENSE™ functionality, and what is the minimum electrode count supported?

All 84 GPIO pins are CAPSENSE™-capable, with hardware support for up to 64 self-capacitive or 32 mutual-capacitive electrodes. The MSC block provides dedicated scan engines and >5:1 SNR, enabling robust touch detection even with thin cover glass or under moisture.

Is the 12-bit SAR ADC capable of simultaneous sampling across multiple channels?

No, the 12-bit SAR ADC does not support true simultaneous sampling. However, it features a hardware channel sequencer with programmable sample-and-hold timing, enabling rapid sequential acquisition across up to 16 channels with signal averaging and automatic result storage in SRAM via DMA-achieving effective throughput near 1 Msps per channel in optimized configurations.