Infineon Technologies CY8C4149LDSS573XQLA1

Overview

CY8C4149LDSS573XQLA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade 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), 12-bit 1-Msps SAR ADC, and multi-sense capacitive sensing (MSC) with >5:1 SNR for touch interfaces in harsh environments.

For engineers reviewing the CY8C4149LDSS573XQLA1 datasheet, CY8C4149LDSS573XQLA1 pinout, CY8C4149LDSS573XQLA1 application, or CY8C4149LDSS573XQLA1 equivalent, this device supports reconfigurable analog/digital peripherals, Deep Sleep mode at 2.5 µA, hardware crypto acceleration (AES/SHA/TRNG), and five runtime-reconfigurable SCBs for I²C/SPI/UART/LIN - critical for automotive body control, infotainment HMI, and motor control timing systems.

Technical Context

The CY8C4149LDSS573XQLA1 implements a unified programmable architecture where analog blocks (2 opamps, 2 LP comparators, SAR ADC with temperature sensor) and digital resources (8 TCPWMs, Smart I/O, 5 SCBs) are routed via a high-speed interconnect matrix. Its CAN FD block operates independently with dedicated message RAM and bit-rate switching up to 5 Mbps, enabling simultaneous high-speed diagnostics and low-latency actuator control.

Timing is managed by multiple synchronized clock domains: ECO + PLL for 48 MHz core operation, WCO for RTC, and ILO for Deep Sleep wake-up. The MSC block integrates hardware-accelerated capacitive sensing with SmartSense auto-tuning, eliminating manual calibration for wet or noisy environments.

Key Specifications

Pinout & Package

This device is packaged in a 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch) with wettable flank capability for automated optical inspection (AOI) and solder joint reliability in automotive production.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K144WHT0MLHT and RH850/F1L, CY8C4149LDSS573XQLA1 uniquely integrates CAPSENSE™ MSC, Deep Sleep analog retention, and CAN FD in a single die - reducing system-level component count and PCB area for non-safety-critical automotive HMI and body control nodes.

Availability

CY8C4149LDSS573XQLA1 is available at Aetrix Electronics and suitable for automotive body control modules, touch-based infotainment HMIs, electric power steering sensor interfaces, and industrial motor drive controllers requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CY8C4149LDSS573XQLA1 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 manufacturing and R&D centers.

The PSoC™ 4100S Max product line targets automotive interior electronics requiring mixed-signal flexibility, functional safety readiness, and robust capacitive sensing - designed specifically for body control, HMI, and electrification subsystems.

FAQ

What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4149LDSS573XQLA1?

The core runs at a maximum of 48 MHz, achieved via the internal main oscillator (IMO) or an external crystal oscillator (ECO) combined with a phase-locked loop (PLL). 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, with timing closure verified in silicon.

Does CY8C4149LDSS573XQLA1 support CAN FD with bit-rate switching?

Yes - it implements ISO 11898-1 compliant CAN FD with programmable nominal and data phase bit rates, supporting up to 5 Mbps in the data phase. The CAN FD controller includes dedicated message RAM, hardware filtering, and automatic retransmission with error confinement, validated per AEC-Q100 stress testing.

How many GPIO pins support CAPSENSE™ functionality?

All 84 programmable GPIO pins support CAPSENSE™ sensing through the MSC block. Each pin can be dynamically assigned as a sense electrode or shield, with hardware-accelerated scanning, noise suppression, and SmartSense auto-tuning enabled without CPU overhead.

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

No - the SAR ADC uses a single conversion core with a channel sequencer that supports rapid sequential sampling (up to 1 Msps aggregate) and hardware-averaged results per channel. True simultaneous sampling requires external analog front-end multiplexing or discrete ADCs.