Infineon Technologies CY8C4148AZSS548XQLA1

Overview

CY8C4148AZSS548XQLA1 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), and multi-sense capacitive sensing (MSC) with >5:1 SNR. It supports CAPSENSE™, LCD segment drive, and five reconfigurable Serial Communication Blocks (SCB) for I²C/SPI/UART/LIN in automotive body control modules.

For engineers reviewing the CY8C4148AZSS548XQLA1 datasheet, CY8C4148AZSS548XQLA1 pinout, CY8C4148AZSS548XQLA1 application, or CY8C4148AZSS548XQLA1 equivalent, key selection criteria include CAN FD compliance, Deep Sleep current (2.5 µA), programmable analog (2 opamps + 12-bit SAR ADC), TCPWM timing precision, and AEC-Q100 Grade-S qualification for under-hood applications.

Technical Context

The device implements a single-layer AHB-Lite interconnect between CPU, memory, and peripherals, with dedicated hardware accelerators for AES, SHA, TRNG, and CRC. Its clock system integrates ECO (4–33 MHz), PLL (48 MHz), WCO (32 kHz), IMO (±2%), and ILO (40 kHz) sources, enabling precise timing across sleep/wake transitions.

Analog subsystem includes two continuous-time opamps supporting high-drive external and high-bandwidth internal modes, plus a 12-bit SAR ADC with differential input, channel sequencer, signal averaging, and integrated temperature sensor - all operable in Deep Sleep mode with independent power domains.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), wettable flank option for automated optical inspection (AOI) and solder joint reliability in automotive assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K144W and RL78/F14, CY8C4148AZSS548XQLA1 uniquely combines CAN FD, hardware crypto, and best-in-class CAPSENSE™ SNR in a single AEC-Q100 Grade-S package - making it optimal for next-generation human-machine interface (HMI) and distributed control units where integration, security, and sensing fidelity are critical.

Availability

CY8C4148AZSS548XQLA1 is available at Aetrix Electronics and suitable for automotive body control modules, electronic power steering systems, instrument cluster displays, and HVAC control units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CY8C4148AZSS548XQLA1 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 MCUs, radar sensors, and security ICs, with global manufacturing and automotive qualification expertise.

CY8C4148AZSS548XQLA1 belongs to the PSoC™ 4100S Max product line, designed specifically for AEC-Q100-compliant automotive HMI, body electronics, and distributed control applications requiring mixed-signal integration, functional safety readiness, and field-upgradable firmware.

FAQ

What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4148AZSS548XQLA1?

The Arm® Cortex®-M0+ core operates at a maximum frequency of 48 MHz, achieved using the on-chip PLL driven by the 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 is validated per AEC-Q100 stress testing protocols.

Does CY8C4148AZSS548XQLA1 support CAN FD with ISO 11898-2 physical layer compliance?

Yes - the integrated CAN FD block supports data rates up to 5 Mbps and includes hardware features required for ISO 11898-2 compliance, including dominant/recessive bit timing control, automatic retransmission, and built-in loopback mode for self-test. External transceiver is still required for bus coupling.

How many CAPSENSE™ sensors can be implemented simultaneously on this device?

The multi-sense converter (MSC) block supports up to 64 capacitive sensors in mutual-capacitance mode or 128 in self-capacitance mode, with hardware-accelerated SmartSense™ auto-tuning. All GPIO pins are eligible, and sensor count is limited only by pin count and scan time budget, not by fixed channel allocation.

Is the 12-bit SAR ADC capable of operating during Deep Sleep mode?

Yes - the 12-bit SAR ADC can operate in Deep Sleep mode with analog domain powered, enabling low-power sensor acquisition. It supports single-shot and sequenced conversions with averaging, and its integrated temperature sensor remains functional, delivering calibrated readings at 2.5 µA total system current.