Infineon Technologies CY8C4149AZS-S578

Overview

CY8C4149AZS-S578 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, dual opamps with Deep Sleep operation, and multi-sense capacitive sensing (MSC) with >5:1 SNR. It targets body control modules requiring robust capacitive touch, motor PWM control, and in-vehicle networking.

For engineers reviewing the CY8C4149AZS-S578 datasheet, CY8C4149AZS-S578 pinout, CY8C4149AZS-S578 application, or CY8C4149AZS-S578 equivalent, this device supports reconfigurable analog/digital blocks, five SCBs (I²C/SPI/UART/LIN), eight TCPWMs with kill-input triggering, hardware crypto (AES/SHA/TRNG), and LCD segment drive - all in a 64-pin TQFP package with wettable flank option.

Technical Context

The CY8C4149AZS-S578 implements a tightly coupled system-on-chip architecture where the Cortex-M0+ core interfaces via single-layer AHB-Lite to programmable analog (CTBm, SAR ADC, LP comparators), digital (Smart I/O, TCPWM), and connectivity (CAN FD, SCBs, I2S TX Master) peripherals. Its clock system integrates ECO (4–33 MHz) + PLL for 48 MHz, WCO (32 kHz), IMO (±2%), and ILO (40 kHz) sources with dynamic switching across power modes.

Capacitive sensing is handled by the dedicated Multi-Sense Converter (MSC) block supporting automatic SmartSense tuning, water-tolerant operation, and >5:1 SNR - independent of CPU load. The CAN FD controller supports ISO 11898-1:2015 compliant frames at up to 5 Mbps with flexible message RAM and filtering.

Key Specifications

Pinout & Package

This device is packaged in a 64-pin TQFP (10 mm × 10 mm, 0.5 mm pitch) with wettable flank leads for automated optical inspection (AOI) and solder joint reliability in automotive reflow processes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K144 and RL78/F14, CY8C4149AZS-S578 uniquely integrates CAPSENSE™, CAN FD, LCD drive, and crypto acceleration in a single 64-pin TQFP - reducing component count and enabling faster time-to-certification for automotive HMI and actuator control units.

Availability

CY8C4149AZS-S578 is available at Aetrix Electronics and suitable for body control modules, door control units, climate panels, and instrument cluster subsystems requiring stable component supply, AEC-Q100 qualification, and long-term automotive lifecycle support.

Supply support for CY8C4149AZS-S578 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.

The PSoC™ 4100S Max product line targets automotive body electronics and human-machine interfaces, delivering reconfigurable analog/digital logic, certified functional safety features, and seamless ModusToolbox™ integration for rapid development of ASIL-B-capable systems.

FAQ

What is the maximum operating frequency of the ARM Cortex-M0+ core in CY8C4149AZS-S578?

The CY8C4149AZS-S578 operates its Arm® Cortex®-M0+ CPU at a maximum frequency of 48 MHz, achieved via the on-chip PLL locked to an external crystal oscillator (ECO) or internal main oscillator (IMO). This frequency is fully supported across the full Grade-S temperature range (–40°C to +105°C) and all power modes except Deep Sleep.

Does CY8C4149AZS-S578 support CAN FD with ISO 11898-1:2015 compliance?

Yes, the integrated CAN FD controller in CY8C4149AZS-S578 complies with ISO 11898-1:2015, supporting data rates up to 5 Mbps, flexible data-length payloads (up to 64 bytes), and bit-rate switching. It includes dedicated message RAM, acceptance filtering, and error counters - all accessible via PDL APIs in ModusToolbox™.

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

No - while any GPIO pin can be configured for CAPSENSE™, the Multi-Sense Converter (MSC) block has hardware resource limits: up to 32 sense channels and 32 shield channels per device. Simultaneous use depends on the selected scan method, resolution, and number of active sensors, as defined in the CapSense Component configuration within ModusToolbox™.

Is the 12-bit SAR ADC capable of differential input mode with hardware averaging?

Yes, the 12-bit SAR ADC supports true differential input mode (INP/INN pairs) and includes a built-in channel sequencer with programmable sample averaging (2x to 1024x). Averaging occurs in hardware prior to CPU read, reducing noise and improving effective resolution for precision sensor measurements like thermistor or current-sense inputs.