Infineon Technologies CY8C4149AZES588XQLA1

Overview

CY8C4149AZES588XQLA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Max microcontroller based on Arm® Cortex®-M0+ CPU, featuring 48 MHz operation, 384 KB flash, 32 KB SRAM, CAN FD up to 5 Mbps, and integrated CAPSENSE™ with SmartSense auto-tuning. It targets body control modules and in-cabin HMI systems requiring robust capacitive touch under moisture.

For engineers reviewing the CY8C4149AZES588XQLA1 datasheet, CY8C4149AZES588XQLA1 pinout, CY8C4149AZES588XQLA1 application, or CY8C4149AZES588XQLA1 equivalent, key selection criteria include CAN FD timing compliance, Deep Sleep current (2.5 µA), SAR ADC resolution (12-bit, 1 Msps), MSC SNR (>5:1), 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 dedicated CAN FD controller - enabling concurrent I2C/SPI/UART/LIN and high-speed CAN FD communication without CPU intervention. Its programmable analog subsystem includes two CTBm opamps with Deep Sleep operation and SAR ADC with built-in temperature sensor and channel sequencer.

Digital flexibility is delivered via eight TCPWM blocks supporting center-aligned PWM, quadrature decoding, and comparator-triggered kill signals for motor safety logic; Smart I/O enables Boolean logic on GPIOs without firmware overhead. The MSC block uses hardware-accelerated multi-sensing conversion optimized for water-tolerant capacitive touch.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, automotive-grade molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K144W and RL78/F14, CY8C4149AZES588XQLA1 uniquely combines CAN FD, hardware CAPSENSE™, and Deep Sleep analog operation in a single die - reducing BOM count and firmware complexity for touch-enabled automotive nodes.

Availability

CY8C4149AZES588XQLA1 is available at Aetrix Electronics and suitable for body control modules, in-cabin HMI interfaces, electric power steering sensor hubs, and automotive gateway nodes requiring stable component supply across extended temperature ranges.

Supply support for CY8C4149AZES588XQLA1 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 wafer fabrication facilities.

CY8C4149AZES588XQLA1 belongs to the PSoC™ 4100S Max product line, designed specifically for AEC-Q100-compliant automotive applications demanding integrated analog sensing, capacitive touch, and high-speed CAN FD communication in compact form factors.

FAQ

What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4149AZES588XQLA1?

The Arm® Cortex®-M0+ core operates at a maximum frequency of 48 MHz, achieved via the internal main oscillator (IMO) or PLL-locked external crystal oscillator (ECO). This frequency is fully supported across the full Grade-S temperature range (–40°C to +105°C) and all voltage conditions (1.71 V to 5.5 V).

Does CY8C4149AZES588XQLA1 support hardware-based cryptographic operations?

Yes - it includes a dedicated cryptography accelerator supporting AES-128/256 encryption/decryption, SHA-256 hashing, true random number generation (TRNG), and CRC computation. These functions execute independently of the CPU, enabling secure boot, firmware authentication, and encrypted CAN FD message payloads without performance penalty.

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 supports up to 32 electrodes per scan group, and total electrode count is constrained by routing resources and scan time. Simultaneous use of all 84 pins as active electrodes is not supported; typical designs use 12–24 electrodes with shared mutual-capacitance or self-capacitance topology.

What clock sources are available for low-power Deep Sleep mode operation?

In Deep Sleep mode, the device retains operation of the 40-kHz internal low-power oscillator (ILO), 32.768-kHz watch crystal oscillator (WCO), and selected analog blocks (opamps, comparators, MSC). The 48-MHz system clock is gated, but wake-up events can be triggered by analog thresholds, GPIO interrupts, or RTC alarms sourced from WCO/ILO.