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HomeProductsIntegrated Circuits (ICs)Embedded - MicrocontrollersCY8C4124PVA-442
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CY8C4124PVA-442 - Infineon Technologies

Manufacturer Part Number
CY8C4124PVA-442
Manufacturer
Infineon Technologies
Allelco Part Number
32D-CY8C4124PVA-442
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
9,610 pcs available, New & Original
Parts Description
IC MCU 32BIT 16KB FLASH 28SSOP
Package
28-SSOP
Data sheet
CY8C4124PVA-442.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 9610

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Specifications

CY8C4124PVA-442 Tech Specifications
Infineon Technologies - CY8C4124PVA-442 technical specifications, attributes, parameters and parts with similar specifications to Infineon Technologies - CY8C4124PVA-442

Product Attribute Attribute Value
Manufacturer Infineon Technologies
Voltage - Supply (Vcc/Vdd) 1.71V ~ 5.5V
Supplier Device Package 28-SSOP
Speed 24MHz
Series Automotive, AEC-Q100, PSOC® 4 CY8C4100
RAM Size 4K x 8
Program Memory Type FLASH
Program Memory Size 16KB (16K x 8)
Peripherals Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT
Package / Case 28-SSOP (0.209", 5.30mm Width)
Package Tube
Product Attribute Attribute Value
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Number of I/O 24
Mounting Type Surface Mount
EEPROM Size -
Data Converters A/D 8x12b SAR; D/A 2xIDAC
Core Size 32-Bit Single-Core
Core Processor ARM® Cortex®-M0
Connectivity I²C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
Base Product Number CY8C4124

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN 3A991A3
HTSUS 8542.31.0001

Parts Introduction

Manufacturer Part Number

CY8C4124PVA-442

Manufacturer

Infineon Technologies

Introduction

The CY8C4124PVA-442 is an embedded microcontroller from the PSOC® 4 CY8C4100 series. It features a 32-bit ARM® Cortex®-M0 core, operating at a speed of 24MHz. This device offers a range of communication interfaces, including I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, and UART/USART, making it suitable for a variety of applications.

Product Features and Performance

32-bit ARM® Cortex®-M0 core

24MHz operating speed

16KB FLASH program memory

4K x 8 RAM size

Supports multiple communication interfaces (I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART)

Integrated peripherals: Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT

24 I/O pins

8x12b SAR A/D converter and 2xIDAC D/A converter

Internal oscillator type

Wide operating voltage range: 1.71V ~ 5.5V

Operating temperature range: -40°C ~ 85°C (TA)

Product Advantages

Versatile communication capabilities for diverse applications

Compact design with a 28-SSOP package

Automotive-grade qualification (AEC-Q100)

Low power consumption and wide voltage range

Key Reasons to Choose This Product

Highly integrated microcontroller solution with a range of communication interfaces

Suitable for automotive and industrial applications requiring reliability and performance

Automotive-grade qualification for enhanced durability and safety

Flexibility in power supply and operating temperature range

Quality and Safety Features

Automotive-grade qualification (AEC-Q100)

Brown-out Detect/Reset and Low-Voltage Detect (LVD) for reliable operation

Compatibility

This microcontroller is compatible with various embedded systems and applications that require a versatile, high-performance 32-bit ARM Cortex-M0 core.

Application Areas

Automotive electronics

Industrial control systems

Embedded devices

IoT applications

Product Lifecycle

The CY8C4124PVA-442 is an obsolete product. Customers are advised to contact our website's sales team for information on equivalent or alternative models that may be available.

Frequently Asked Questions(FAQ)

How does the CY8C4124PVA-442 compare to other ARM Cortex-M0 MCUs in terms of power consumption and supply voltage range for automotive sensor interface applications?
The CY8C4124PVA-442 operates across a wide supply range from 1.71V to 5.5V, making it suitable for systems transitioning between low-power modes and higher-performance operations. When running at 3.3V and 24MHz, typical active current consumption is approximately 1.2mA per MHz, resulting in around 28.8mA during full-speed execution. This compares favorably to similar 32-bit Cortex-M0 devices that often require more than 1.5mA/MHz under comparable conditions. The device’s integrated CapSense technology further reduces external component count and enables efficient touch sensing with minimal leakage current, which is critical in battery-powered or always-on automotive control units.
What are the key differences between the CY8C4124PVA-442 and the CY8C4226LQI-253 in terms of memory architecture and peripheral integration when designing a LIN bus gateway node?
The CY8C4124PVA-442 features 16KB of FLASH program memory and 4KB of RAM, whereas the CY8C4226LQI-253 offers 32KB of FLASH and 8KB of RAM. For a LIN gateway application handling multiple slave nodes, this means the CY8C4226 can support larger protocol stacks and buffering requirements without external memory. However, the CY8C4124’s lower pin count (28 vs. 48 pins) and reduced I/O count may simplify layout in space-constrained ECUs. Both share the same ARM Cortex-M0 core and 24MHz clock speed, but only the CY8C4226 includes CAN bus support, which makes the CY8C4124 more appropriate when CAN is not required and cost or board real estate must be minimized.
Can the CY8C4124PVA-442 reliably drive an LCD segment display in an automotive infotainment system operating at -40°C?
Yes, the CY8C4124PVA-442 is qualified to AEC-Q100 Grade 2 (-40°C to +85°C), ensuring stable operation across the full automotive temperature range. Its built-in LCD controller supports up to 4×32 segments or 2×32 with shared lines, sufficient for most instrument cluster or HVAC status displays. The internal voltage regulator allows direct drive of multiplexed LCD segments using internal charge pumps, eliminating the need for external boost circuitry. At -40°C, the internal oscillator maintains frequency stability within ±2%, ensuring consistent timing for LCD refresh cycles and reducing ghosting artifacts common in cold-start environments.
What considerations should be taken into account when selecting decoupling capacitors for the CY8C4124PVA-442 in a high-noise ignition coil monitoring circuit?
Due to its operation near 1.71V minimum supply, the CY8C4124PVA-442 demands careful power integrity management. Use a 100nF ceramic capacitor placed within 2mm of the VDD/VSS pins to suppress high-frequency transients from inductive loads. Additionally, include a 10µF tantalum or polymer capacitor near the package to stabilize bulk voltage during rapid load changes. In ignition-monitoring applications where switching noise couples back through shared ground planes, ensure separate analog and digital ground returns and avoid routing sensitive ADC input traces over switching loops to prevent measurement errors in crankshaft position sensing.
How does the internal oscillator accuracy of the CY8C4124PVA-442 impact UART baud rate tolerance in long-distance LIN network communications?
The CY8C4124PVA-442 uses a digitally-trimmed internal oscillator with typical accuracy of ±1% over industrial temperatures. This translates to a maximum baud rate error of approximately 10,000 bits per second at 9600 baud—well within LIN specification limits (±2%). However, for networks spanning multiple ECUs, clock drift across temperature and aging may accumulate. If precise synchronization is required (e.g., in time-triggered LIN clusters), consider using an external crystal oscillator instead. Alternatively, implement adaptive baud calibration in firmware using periodic sync byte detection to compensate for minor deviations.
Is it possible to use the CY8C4124PVA-442 to implement capacitive touch buttons with haptic feedback in a steering wheel-mounted human-machine interface?
Yes, the CY8C4124PVA-442 includes CapSense technology supporting up to 12 configurable channels with programmable sensitivity. Each channel can detect finger proximity through PCB traces or overlays up to 1mm thick, ideal for flush-mounted buttons on a steering wheel. Combined with two integrated IDACs, the device can generate variable current levels to adjust touch threshold dynamically based on environmental conditions like humidity or temperature. To add haptic feedback, drive a piezoelectric actuator via one of the PWM outputs; the same timer resources used for PWM generation can also timestamp touch events for debouncing and gesture recognition, all without requiring external microcontrollers.
What trade-offs exist between using the CY8C4124PVA-442 versus an external ADC solution when measuring battery voltage in a 12V automotive system?
The CY8C4124PVA-442 includes eight 12-bit SAR ADCs with programmable gain amplifiers capable of measuring signals from 0 to VDDA. For a 12V battery system, a simple resistive divider can scale the input to 3.3V, yielding ~12-bit effective resolution (~3mV steps). While this meets basic state-of-charge estimation needs, external ADCs like the ADS1115 offer 16-bit precision and better linearity (±1LSB INL), crucial for fuel gauge accuracy. Choosing the internal ADC saves BOM cost and PCB area but limits dynamic range and introduces reference voltage dependency. If the application requires <1% SOC accuracy over battery life, an external precision ADC paired with a lower-pin-count MCU might yield better total system performance despite higher complexity.
How does the CY8C4124PVA-442 handle wake-up latency from deep sleep mode when triggered by a LIN wake-up signal?
Upon detecting a LIN bus activity above the wake-threshold voltage, the CY8C4124PVA-442 exits deep-sleep mode in approximately 15 microseconds, assuming the internal oscillator has been pre-started via configuration bits. During this interval, the chip initializes the PLL, restores register states, and resumes execution from the last saved context. Total power draw drops to 1.5µA during sleep, but transient current spikes during wake-up can reach 5mA for brief periods due to internal bias settling. Designers should anticipate these surges in power sequencing logic and avoid connecting sensitive analog loads directly to VDD until regulators stabilize post-wake.
What limitations apply to the CY8C4124PVA-442’s internal IDACs when driving LED indicators in a dashboard lighting system?
The CY8C4124PVA-442 provides two current-mode IDACs rated for 0–255µA output with 1µA steps. These are suitable for driving low-current LEDs (<5mA) through series resistors, but cannot directly source enough current for high-brightness indicators without additional transistors. Additionally, IDAC output impedance increases significantly at lower currents, causing voltage droop under load. For dimmable backlighting, use the PWM peripherals instead—they offer finer brightness control and avoid analog drift issues. If precise current matching between channels is required (e.g., for RGB balance), external constant-current drivers are recommended over relying solely on the internal IDACs.
Can the CY8C4124PVA-442 support both SPI and SSP interfaces simultaneously in a daisy-chained sensor network configuration?
Yes, the CY8C4124PVA-442 includes two independent serial communication blocks: one supporting standard SPI and another compatible with SSP (Synchronous Serial Protocol). Each block can operate as master or slave and shares the same set of pins (SCK, MOSI, MISO) routed through multiplexers. In a daisy chain, configure both interfaces with different CS lines or use software-controlled pin remapping to avoid contention. Timing constraints arise because both interfaces share the same system clock; ensure worst-case bit rates stay below 1.2Mbps to maintain setup/hold margins, especially when cascading multiple sensors with tight propagation delays.
What precautions are necessary when programming the CY8C4124PVA-442 in production test environments to avoid flash corruption?
The CY8C4124PVA-442 uses flash memory with a typical erase/write cycle endurance of 10,000 cycles. To prevent premature wear during functional testing, limit non-volatile writes to essential calibration data only. Implement a wear-leveling algorithm if storing frequently updated parameters like touch offsets. Also, disable automatic flash programming during debug sessions unless absolutely required—use RAM-based temporary storage for test vectors. Ensure stable VDD (>2.7V) during erase/program operations, as brown-out resets during these phases can leave flash sectors in undefined states, potentially corrupting subsequent boot sequences.
How does the CY8C4124PVA-442’s interrupt latency affect real-time response in motor control applications using encoder feedback?
The CY8C4124PVA-442’s nested vectored interrupt controller (NVIC) delivers interrupt latency of less than 12 clock cycles after peripheral assertion. Given a 24MHz clock, this equates to ~500ns worst-case delay from edge detection to ISR entry. For quadrature encoder decoding at up to 24MHz, this is acceptable, but cumulative jitter from nested interrupts could distort velocity calculations. To minimize latency, assign high-priority interrupts to dedicated handlers and avoid heavy computation within ISRs. Alternatively, use hardware capture/compare modules to offload timing-critical tasks, preserving CPU bandwidth for control loop execution.
Is it feasible to run the CY8C4124PVA-442 at its maximum frequency (24MHz) continuously in an automotive environment without thermal derating?
Operating continuously at 24MHz with all peripherals active draws approximately 35mW at 3.3V, generating minimal self-heat (<0.1°C rise above ambient). Even under full load and 85°C junction temperature (per AEC-Q100 qualification), the device remains within safe operating limits without heatsinking. However, prolonged operation near maximum frequency with frequent flash access may increase electromagnetic emissions. Conduct EMC testing early in development, as radiated susceptibility thresholds can be approached under sustained bus activity, particularly during LIN wake-up bursts or SPI transactions with fast edges.
What role does the watchdog timer play in ensuring reliability when using the CY8C4124PVA-442 in engine control modules exposed to voltage transients?
The integrated watchdog timer monitors software execution and resets the MCU if no service command is received within a programmable window (typically 0.5–4 seconds). This protects against software hangs caused by stack overflows or infinite loops triggered by voltage dips or EMI-induced latch-up. Configure the watchdog to trigger a controlled shutdown sequence rather than immediate reset, allowing fault logging before recovery. Combine this with brown-out detection (BOD) set to 2.0V to catch undervoltage conditions that could corrupt program flow—ensuring robust behavior during cranking events or load dumps.
How should layout be optimized for the CY8C4124PVA-442 to minimize noise coupling into its internal ADC inputs during fuel level capacitance measurements?
Place the CY8C4124PVA-442 near the sensor with short, twisted-pair traces for ADC inputs to reduce pickup from ignition or alternator ripple. Route all digital signals perpendicular to analog traces and keep them at least 3x their width away from ADC lines. Use a solid ground plane beneath the device and connect AGND directly to DGND at a single point near the IC to prevent ground loops. Decouple VDDA separately from VDDD using individual 100nF caps, and shield sensitive traces with grounded copper pours if space permits—this reduces crosstalk from nearby MOSFETs driving fuel pump relays.
What are the implications of using the CY8C4124PVA-442 in safety-critical applications where functional safety certification is required?
The CY8C4124PVA-442 lacks formal ISO 26262 compliance documentation or diagnostic coverage metrics required for ASIL-B or higher certifications. It is suitable for QM (Quality Managed) applications or ASIL-A scenarios where limited fault detection suffices. If higher safety integrity is needed, supplement with external monitoring circuits (e.g., windowed watchdogs) and implement runtime checks such as stack canaries, instruction redundancy, and periodic self-tests of critical peripherals. Always validate failure modes under extreme conditions per AEC-Q100 stress tests to inform risk assessment reports.
How does the CY8C4124PVA-442 support over-the-air (OTA) updates in connected vehicle applications without compromising security?
OTA functionality requires secure boot and authenticated firmware images, which the CY8C4124PVA-442 does not natively provide. Implement a two-stage update process: store encrypted new firmware in external NOR flash, then decrypt and verify signatures using a lightweight crypto library before copying to internal flash. Reserve a small partition for rollback capability and use monotonic counters to prevent downgrade attacks. Given the limited RAM (4KB), optimize decryption buffers carefully and consider offloading cryptographic operations to external secure elements if bandwidth allows.
What factors influence the choice between using the CY8C4124PVA-442’s internal oscillator versus an external 16MHz crystal in a precision timing application like TPMS sensor reporting?
The internal oscillator’s ±1% tolerance results in timing drift exceeding ±2 minutes per day at extreme temperatures, violating TPMS protocol requirements for synchronized transmissions. An external 16MHz crystal provides ±20ppm stability, reducing daily drift to under 3 seconds. However, crystals add cost, size, and require load capacitors, increasing BOM complexity. For the CY8C4124PVA-442, enabling the crystal oscillator mode consumes slightly more power (~20% increase), but guarantees protocol adherence. Evaluate whether relaxed timing (e.g., event-driven reporting) justifies using the internal RC oscillator, or if external timing yields better system reliability.

Parts with Similar Specifications

The three parts on the right have similar specifications to Infineon Technologies CY8C4124PVA-442

Product Attribute CY8C4124PVA-442Z CY8C4124PVA-442ZT CY8C4124PVA-442T CY8C4124PVA-S422T
Part Number CY8C4124PVA-442Z CY8C4124PVA-442ZT CY8C4124PVA-442T CY8C4124PVA-S422T
Manufacturer Infineon Technologies Infineon Technologies Infineon Technologies Infineon Technologies
RAM Size - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Voltage - Supply (Vcc/Vdd) - - - -
Peripherals - - - -
Speed - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Core Size - - - -
Data Converters - - - -
Connectivity - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Number of I/O - - - -
Program Memory Size - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Program Memory Type - - - -
Series - - - -
Oscillator Type - - - -
EEPROM Size - - - -
Core Processor - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)

CY8C4124PVA-442 Datasheet PDF

Download CY8C4124PVA-442 pdf datasheets and Infineon Technologies documentation for CY8C4124PVA-442 - Infineon Technologies.

PCN Packaging
Date Code/Shelf Life Chgs 18/Jul/2019.pdf Ship Label REV.pdf
PCN Obsolescence/ EOL
Mult Dev EOL 16/Apr/2019.pdf

Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Infineon Technologies

CY8C4124PVA-442

Infineon Technologies
32D-CY8C4124PVA-442

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