Infineon Technologies CY8C4147LQA-S283T

Overview

CY8C4147LQA-S283T from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Plus microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (SCBs), eight TCPWM modules, a CAN 2.0B controller with TTCAN support, and programmable analog blocks - deployed in automotive body electronics, touch-enabled control panels, and motor control interfaces.

For engineers reviewing the CY8C4147LQA-S283T datasheet, CY8C4147LQA-S283T pinout, CY8C4147LQA-S283T application, or CY8C4147LQA-S283T equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ SNR >5:1, CAN 2.0B + TTCAN timing compliance, Deep Sleep current of 2.5 µA, and GPIO flexibility across 54 pins with programmable drive strength and slew rate.

Technical Context

The device implements a tightly coupled mixed-signal architecture where the Arm® Cortex®-M0+ core executes firmware while programmable analog (CTB opamps, SAR ADC, IDACs) and digital (Smart I/O, TCPWM, SCB) blocks operate independently under hardware routing control. Its clock system integrates ECO (4–33 MHz), WCO (32 kHz), IMO (±2%), and ILO oscillators with PLL-based 48-MHz system clock generation.

Capacitive sensing uses sigma-delta (CSD) modulation with hardware-accelerated SmartSense tuning, enabling robust water-tolerant touch detection without host CPU intervention. The CAN block supports time-triggered operation with configurable message objects, bit-rate up to 1 Mbps, and bus-off recovery - meeting ISO 11898-1 requirements for automotive network nodes.

Key Specifications

Pinout & Package

Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad. Pin assignment conforms to CY8C4147LQA-S283T-specific ball map per Infineon datasheet Rev. *S, Table 2-1 (page 15).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C4147LQA-S283T, the S32K144W offers higher compute headroom but adds complexity and cost for touchless applications, while the RL78/F14 trades CAPSENSE™ capability and ultra-low-power sleep for lower unit price in non-safety-critical modules.

Availability

CY8C4147LQA-S283T is available at Aetrix Electronics and suitable for automotive door modules, touch-controlled HVAC panels, electric power steering sensor interfaces, and body control module subsystems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CY8C4147LQA-S283T 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 Plus product line targets automotive-grade programmable mixed-signal controllers - designed to consolidate MCU, analog front-end, capacitive sensing, and CAN networking into a single AEC-Q100-qualified die for body electronics and human-machine interface applications.

FAQ

What is the maximum operating frequency of the Arm® Cortex®-M0+ core in CY8C4147LQA-S283T?

The CY8C4147LQA-S283T operates its Arm® Cortex®-M0+ CPU at a maximum frequency of 48 MHz, achieved via internal PLL multiplication of the IMO or ECO clock source. This frequency is guaranteed across the full Grade-S temperature range (–40°C to +105°C) and 1.71–5.5 V supply voltage, with zero wait-state flash execution enabled by the Read Accelerator.

Does CY8C4147LQA-S283T support CAN FD or only classical CAN 2.0B?

CY8C4147LQA-S283T implements a classical CAN 2.0B controller with time-triggered communication (TTCAN) support, but does not support CAN FD. It complies with ISO 11898-1 for bit rates up to 1 Mbps, includes 32 message objects, and provides hardware timestamping for deterministic scheduling - sufficient for body control and comfort systems, though not for high-bandwidth powertrain or ADAS domains requiring FD throughput.

How many CAPSENSE™ buttons or sliders can be implemented using CY8C4147LQA-S283T?

The device supports up to 64 CAPSENSE™ sensors (buttons, sliders, or proximity detectors) using its CSD sensing method, constrained only by available GPIO pins and scan time budget. With SmartSense auto-tuning, each sensor achieves >5:1 SNR and tolerates >1 mm water overlay - verified per Infineon's AN85951 design guide and supported by hardware-accelerated scanning that offloads the CPU during active sensing cycles.

Is external crystal oscillator required for CAN timing accuracy?

No external crystal is strictly required for CAN operation: the internal ±2% IMO suffices for standard CAN 2.0B at 500 kbps with proper bit timing configuration. However, for TTCAN or higher bit rates (e.g., 1 Mbps), Infineon recommends using the 4–33 MHz ECO for improved timing stability - as validated in the device's CAN TRM section and confirmed by ECO-based bit timing calculations achieving <±1% phase error over temperature.