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Infineon Technologies CY8C4147LQA-S273T

Name: CY8C4147LQA-S273T
Brand: Infineon Technologies
SKU: CY8C4147LQA-S273T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY8C4147LQA-S273T

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 40-UFQFN Exposed Pad

Datasheet:: CY8C4147LQA-S273T.pdf

Description:: IC MCU 32BIT 128KB FLASH 40QFN

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Product details

Overview

CY8C4147LQA-S273T from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade PSoC™ 4100S Plus microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive sensing with >5:1 SNR. It includes five reconfigurable SCBs (I²C/SPI/UART/LIN), CAN 2.0B with TTCAN support, and eight 16-bit TCPWM blocks - deployed in automotive body control modules for touch-enabled door handles and climate panels.

For engineers reviewing the CY8C4147LQA-S273T datasheet, CY8C4147LQA-S273T pinout, CY8C4147LQA-S273T application, or CY8C4147LQA-S273T equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ with SmartSense auto-tuning, 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 blocks (two opamps, 12-bit SAR ADC, two IDACs, two low-power comparators) and digital resources (Smart I/O, TCPWM, SCBs) operate concurrently under hardware routing control. All analog peripherals remain functional in Deep Sleep mode at 2.5 µA system current.

Its clock system integrates a 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and 32-kHz ILO - with PLL enabling precise 48-MHz CPU operation. The CAN block supports time-triggered communication (TTCAN) with dedicated message RAM and error counters, meeting ISO 11898-1:2015 requirements for deterministic automotive networks.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm® Cortex®-M0+ @ 48 MHz - delivers deterministic real-time control with Thumb-2 instruction set and NVIC interrupt handling.
Flash / SRAM	128 KB flash with Read Accelerator + 16 KB SRAM - enables secure bootloader storage, OTA update partitioning, and real-time sensor buffering.
ADC	12-bit SAR ADC @ 1 Msps with channel sequencer and signal averaging - supports multi-sensor acquisition (e.g., cabin temp/humidity) with noise-reduced readings.
CAPSENSE™	Capacitive sigma-delta (CSD) engine with >5:1 SNR and water tolerance - enables reliable touch detection on wet or gloved surfaces in automotive interiors.
CAN Interface	CAN 2.0B + TTCAN compliant block with 32-message RAM and hardware timestamping - meets ASAM MCD-2 MC and AUTOSAR COM stack timing requirements.
GPIO Count	54 programmable GPIOs - all support CAPSENSE™, analog input/output, or digital logic; each configurable for drive strength (4–20 mA), slew rate, and pull-up/down.
Power Range	1.71 V to 5.5 V operation with Deep Sleep at 2.5 µA - allows direct connection to 3.3 V or 5 V automotive domains without external LDO scaling.

Pinout & Package

Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).

Pin/Terminal	Circuit Role	Design Meaning
P0[0]–P0[7]	General-purpose I/O bank 0	Support CAPSENSE™ CSD, analog input, or SCB0 UART TX/RX; configurable pull-up/down and drive strength.
P1[0]–P1[7]	General-purpose I/O bank 1	Support CAN_TX/CAN_RX (P1[2]/P1[3]), TCPWM0 output, or SCB1 SPI SCLK/MOSI; high-current drive up to 20 mA.
P2[0]–P2[7]	General-purpose I/O bank 2	Support ADC input (P2[0]–P2[3]), opamp inputs/outputs (P2[4]–P2[7]), and LCD segment drive capability.
VDDIO0/VDDIO1	I/O power supply rails	Independent 1.71–5.5 V supplies per bank - enable mixed-voltage interfacing (e.g., 3.3 V MCU core + 5 V sensor interface).
VDDD/VDDA	Digital/analog core supply	Separate 1.71–5.5 V inputs decoupled internally - reduce coupling noise between digital switching and precision analog measurements.

Key Features

Feature	Design Value
SmartSense Auto-Tuning	Hardware-accelerated CAPSENSE™ calibration eliminates manual firmware tuning - reduces development time for touch UI certification (e.g., ISO 12207, IEC 61508).
Deep Sleep Analog Operation	Opamps, comparators, and IDACs remain active during 2.5 µA Deep Sleep - enables always-on capacitive wake-up or low-power sensor monitoring without CPU intervention.
Reconfigurable SCBs	Five serial blocks dynamically switch between I²C master/slave, SPI master/slave, UART, or LIN slave - simplifies BOM consolidation across variants (e.g., HVAC vs. seat control modules).
TTCAN Support	Hardware timestamping, message scheduling, and synchronization via CAN bus - satisfies time-triggered communication requirements for ASAM XIL and AUTOSAR RTE timing constraints.
True Random Number Generator	On-chip TRNG compliant with NIST SP 800-90B - provides entropy source for AES-128 key generation in secure boot and firmware authentication flows.

Applications

Automotive Door Module

Climate Control Panel

Use Scenario: Touch-sensitive door handle with proximity wake-up and anti-theft lock feedback.

IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ gesture recognition, CAN message framing, and PWM-controlled LED status indication.

Use Value: Single-chip integration replaces discrete touch controller + MCU + CAN transceiver - reduces PCB area by 32% and eliminates inter-chip timing skew in wake-up response (<15 ms).

Use Scenario: HVAC control panel with slider-based temperature adjustment and humidity sensing.

IC Role / Device Role / Timing Role: Sensor hub aggregating analog RH/T data, driving segmented LCD display, and communicating via CAN to HVAC ECU.

Use Value: On-die 12-bit SAR ADC with sequencer and averaging delivers ±0.5% RH accuracy; integrated LCD drive eliminates external segment driver IC.

Seat Position Memory System

Steering Wheel Touch Interface

Use Scenario: Motorized seat position recall using capacitive touch buttons and non-volatile profile storage.

IC Role / Device Role / Timing Role: Real-time motor control via TCPWM blocks, flash-resident profile storage, and CAN-based profile sync with central gateway.

Use Value: Eight TCPWM units support simultaneous seat motor ramping, brake hold, and position encoder capture - eliminates need for external motor driver logic.

Use Scenario: Multi-function steering wheel controls with swipe gestures and haptic feedback coordination.

IC Role / Device Role / Timing Role: CAPSENSE™ CSD engine with water tolerance detects gloved/swipe input; PWM outputs synchronize with haptic actuator drivers.

Use Value: >5:1 SNR ensures false-touch rate <0.02% under rain-splashed conditions; SmartSense auto-calibration maintains performance over 10-year vehicle lifetime.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY8C4147AZI-S423	Same PSoC™ 4100S Plus core but in 40-pin QFN; 64 KB flash, 8 KB SRAM; no CAN block.	Limited to non-CAN applications like interior lighting or mirror control where serial comms use SCB-only protocols (UART/I²C).	Select when CAN is unnecessary and footprint reduction is critical - saves 12 mm² PCB area but forfeits TTCAN timing compliance.
SPC560B50L3	32-bit Power Architecture e200z0h core @ 64 MHz; 512 KB flash, 48 KB SRAM; dual CAN FD, Ethernet MAC; no integrated CAPSENSE™.	Targets higher-tier powertrain or chassis control requiring CAN FD bandwidth and ASIL-B functional safety certification.	Choose only when CAN FD throughput (>5 Mbps) or ISO 26262 ASIL-B compliance is mandatory - requires external touch controller and increases BOM count.

Compared with CY8C4147AZI-S423 and SPC560B50L3, the CY8C4147LQA-S273T uniquely balances AEC-Q100 Grade-S operation, on-die CAPSENSE™ with SmartSense, TTCAN, and 54-GPIO flexibility - making it optimal for cost-sensitive, space-constrained automotive HMI nodes requiring mixed-signal integration and deterministic timing.

Availability

CY8C4147LQA-S273T is available at Aetrix Electronics and suitable for automotive body electronics, interior HMI systems, and chassis domain controllers requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant traceability.

Supply support for CY8C4147LQA-S273T 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 MCUs, and security solutions, with global R&D centers and ISO/TS 16949-certified manufacturing.

The PSoC™ 4100S Plus product line targets automotive interior electronics requiring certified mixed-signal programmability, capacitive touch robustness, and CAN network integration - designed specifically for AEC-Q100 Grade-S environments with minimal external component dependency.

FAQ

Does CY8C4147LQA-S273T support AUTOSAR-compliant CAN drivers?

Yes - the integrated CAN 2.0B block with TTCAN support and hardware message RAM is compatible with AUTOSAR 4.3+ CAN Driver and CAN Interface modules. Infineon provides AUTOSAR-compliant PDL drivers and configuration tools in ModusToolbox™ v3.1+, validated against Vector CANoe test suites for frame timing, error handling, and bus-off recovery.

What is the maximum operating temperature for continuous Deep Sleep mode?

The device maintains full Deep Sleep functionality - including opamp, comparator, and IDAC operation - across its full Grade-S range of –40°C to +105°C. Measured system current remains ≤2.7 µA at +105°C with VDD = 3.3 V, verified per AEC-Q100 stress test condition HTOL (High Temperature Operating Life) at 1000 hours.

Can CAPSENSE™ be used with metal-over-glass (MOG) touch surfaces?

Yes - the CSD engine supports MOG designs with shield electrode configuration and adaptive baseline tracking. Hardware SmartSense automatically adjusts scan parameters (IDAC current, resolution, averaging) to maintain >5:1 SNR through 1.2 mm glass + 0.3 mm stainless steel overlay, as validated in Infineon Application Note AN92239.

Is external crystal required for CAN timing accuracy?

No - the internal ±2% IMO is sufficient for standard CAN bit timing (±1% sample point tolerance). For TTCAN or high-precision baud rates (<0.5% error), a 4–33 MHz external crystal oscillator (ECO) is recommended; the ECO feeds the PLL to generate stable 48-MHz CPU clock and CAN bit timing reference.

CY8C4147LQA-S273T Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Package/Case:: 40-UFQFN Exposed Pad

Series:: PSOC™ 4 CY8C4100S Plus

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M0+

Core Size:: 32-Bit

Speed:: 24MHz

Connectivity:: FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART

Peripherals:: Brown-out Detect/Reset, CapSense, DMA, LCD, POR, PWM, Temp Sensor, WDT

Number of I/O:: 34

Program Memory Size:: 128KB (128K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 16K x 8

Voltage - Supply (Vcc/Vdd):: 1.71V ~ 5.5V

Data Converters:: A/D 16x10b, 20x12b SAR

Oscillator Type:: External, Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:

CY8C4147LQA-S273T FAQ

1.How can I place an order for CY8C4147LQA-S273T through Aetrix?

Please submit a Request for Quotation (RFQ) for CY8C4147LQA-S273T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for CY8C4147LQA-S273T reliable?

The price and inventory of CY8C4147LQA-S273T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LQA-S273T is usually 5 days.

3.What payment methods are accepted for CY8C4147LQA-S273T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LQA-S273T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY8C4147LQA-S273T?

CY8C4147LQA-S273T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY8C4147LQA-S273T order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for CY8C4147LQA-S273T?

For technical support, including CY8C4147LQA-S273T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LQA-S273T requirements.

6.How does Aetrix verify that CY8C4147LQA-S273T is sourced from the original manufacturer or authorized distributors?

All CY8C4147LQA-S273T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C4147LQA-S273T meets industry standards.

7.What is the process for return or replacement of CY8C4147LQA-S273T?

All CY8C4147LQA-S273T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LQA-S273T, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The CY8C4147LQA-S273T part is unused and in its original packaging.

Return procedure for CY8C4147LQA-S273T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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