Infineon Technologies CY8C4147LQE-S293

Overview

CY8C4147LQE-S293 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade PSoC™ 4100S Plus programmable system-on-chip 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 two opamps operating in Deep Sleep mode - deployed in automotive body control modules for touch-enabled door handles and climate panels.

For engineers reviewing the CY8C4147LQE-S293 datasheet, CY8C4147LQE-S293 pinout, CY8C4147LQE-S293 application, or CY8C4147LQE-S293 equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-die CAPSENSE™ SNR > 5:1, CAN 2.0B + TTCAN timing compliance, Deep Sleep current ≤ 2.5 µA, and GPIO flexibility across 54 pins with programmable drive strength and slew rate.

Technical Context

The device implements a tightly coupled MCU subsystem with a 48-MHz Arm® Cortex®-M0+ core, supported by a configurable clock tree including a 32-kHz WCO, ±2% IMO, and PLL-based 48-MHz system clock. Its analog subsystem integrates a 12-bit 1-Msps SAR ADC with channel sequencer and averaging, two continuous-time opamps with ADC input buffering, and dual low-power comparators active in Deep Sleep.

Digital resources include five SCBs supporting I²C/SPI/UART/LIN, eight 16-bit TCPWM blocks with quadrature decode and comparator-triggered kill signals, a dedicated CAN 2.0B block with TTCAN timestamping, and Smart I/O logic for Boolean port-level signal conditioning - all routed via automatic digital interconnect fabric.

Key Specifications

Pinout & Package

Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C4147AZI-S423 and S32K144HAT0MLHT, CY8C4147LQE-S293 uniquely combines AEC-Q100 Grade-S qualification, on-die CAPSENSE™ with SmartSense, TTCAN, and Deep Sleep analog retention - making it optimal for cost-sensitive, space-constrained automotive HMI nodes requiring integrated sensing and networking.

Availability

CY8C4147LQE-S293 is available at Aetrix Electronics and suitable for automotive door modules, climate control panels, body control units, and seat position memory systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle assurance.

Supply support for CY8C4147LQE-S293 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.

CY8C4147LQE-S293 belongs to the PSoC™ 4100S Plus product line - engineered specifically for automotive human-machine interface (HMI) and body electronics applications requiring integrated capacitive sensing, CAN networking, and functional safety-ready peripherals.

FAQ

Does CY8C4147LQE-S293 support functional safety standards such as ISO 26262?

Yes. The device is AEC-Q100 Grade-S qualified and includes hardware features aligned with ASIL-B requirements: ECC on flash and SRAM, lockstep-capable CPU configuration (via external supervision), memory built-in self-test (MBIST), and clock failure detection. Full ISO 26262 certification documentation is provided in Infineon's Safety Manual (document ID 002-20072-SM).

Can the on-chip CAPSENSE™ operate reliably with wet fingers or condensation on the overlay?

Yes. The CSD implementation achieves >5:1 signal-to-noise ratio and includes hardware-based water rejection algorithms. Combined with SmartSense auto-tuning, it maintains stable baseline tracking and false-touch immunity during humidity exposure - validated per IEC 61000-4-6 and automotive environmental test standards.

What development tools are officially supported for CY8C4147LQE-S293 firmware and CAPSENSE™ tuning?

Infineon officially supports ModusToolbox™ 3.x for firmware development and PSoC™ Creator 4.4 for schematic-based design. CAPSENSE™ tuning is performed using the CAPSENSE™ Tuner tool within PSoC™ Creator or the ModusToolbox™ CAPSENSE™ Configurator, both providing real-time signal visualization and parameter optimization.

Is external crystal required for CAN operation, or can the internal oscillator be used?

An external crystal (4–33 MHz ECO) is mandatory for CAN 2.0B and TTCAN operation. The internal ±2% IMO does not meet CAN bit timing accuracy requirements (±1% tolerance). The ECO feeds the PLL to generate the precise 48-MHz system clock needed for CAN bit sampling and TTCAN timestamp resolution ≤ 1 µs.