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Infineon Technologies CY8C4045PVS-S412
- Part No.:
- CY8C4045PVS-S412
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C4045PVS-S412.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,163
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Product details
Overview
CY8C4045PVS-S412 from Infineon is an AEC-Q100 qualified automotive-grade PSoC™ 4000S microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 32 KB flash, 4 KB SRAM, integrated CAPSENSE™ capacitive sensing with >5:1 SNR, two low-power comparators operating in Deep Sleep mode (2.5 µA system current), and two reconfigurable serial communication blocks (SCB) supporting I²C/SPI/UART - deployed in automotive body control modules for touch-enabled interior interfaces.
For engineers reviewing the CY8C4045PVS-S412 datasheet, CY8C4045PVS-S412 pinout, CY8C4045PVS-S412 application, or CY8C4045PVS-S412 equivalent, key selection criteria include AEC-Q100 Grade S (–40°C to +105°C), programmable analog/digital routing, TCPWM kill-signal triggering for motor safety, and SWD debug compatibility with industry-standard tools.
Technical Context
The CY8C4045PVS-S412 implements a single-layer AHB-Lite interconnect architecture linking the Cortex-M0+ core, 34 GPIOs, dual SCBs, five 16-bit TCPWM blocks, and CAPSENSE™ sigma-delta sensing engine. Its power system supports Deep Sleep with active analog (comparators, IDACs) and 2.5 µA digital current.
It integrates dedicated hardware for automatic CAPSENSE™ tuning, programmable drive modes per GPIO, and configurable clock sources including IMO (48 MHz), ILO (32.768 kHz), and WCO - enabling deterministic timing for automotive touch and motor-control functions without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz - delivers deterministic real-time control for automotive body electronics with Thumb-2 instruction set support. |
| Memory | 32 KB flash (with read accelerator), 4 KB SRAM - enables firmware updates and runtime data buffering in space-constrained ECUs. |
| Operating Voltage | 1.71 V to 5.5 V - supports direct connection to 3.3 V or 5 V automotive power rails without level-shifting. |
| Temperature Grade | AEC-Q100 S-Grade (–40°C to +105°C) - certified for under-hood and cabin-mounted automotive applications. |
| Capacitive Sensing | CSD-based CAPSENSE™ with >5:1 SNR and water tolerance - enables reliable touch buttons/knobs in humid vehicle interiors. |
| Debug Interface | Arm Serial-Wire Debug (SWD) - provides full on-chip debugging using standard production silicon, no emulator required. |
| GPIO Count | 34 programmable pins - all support CAPSENSE™, analog input, digital I/O, or LCD segment drive with configurable slew rate and drive strength. |
Pinout & Package
Package: 28-pin SSOP (Small Outline Integrated Circuit, 300 mil width), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/Os - requires local 100 nF decoupling. |
| GND | Ground reference | Common return path for all analog/digital domains; must be connected to low-impedance PCB ground plane. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures valid state during power-up without external component. |
| SWDIO / SWDCLK | Serial Wire Debug interface | Dedicated pins for programming and real-time debugging; compatible with CMSIS-DAP and J-Link tools. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO bank | Each pin supports multiple functions (CAPSENSE™, ADC, SCB, TCPWM) routed via hardware interconnect - no external mux needed. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable analog blocks | Two low-power comparators and two IDACs usable in Deep Sleep - enable always-on proximity detection with sub-µA wake-up capability. |
| Hardware-accelerated CAPSENSE™ | Sigma-delta CSD engine with auto-tuning algorithm - eliminates manual calibration effort and maintains performance across temperature/humidity drift. |
| Runtime-reconfigurable SCBs | Two independent serial blocks dynamically switch between I²C, SPI, UART - reduces BOM count by consolidating communication interfaces into one peripheral. |
| TCPWM kill-signal triggering | Comparator output directly triggers PWM shutdown - provides hardware-level fault response for motor drivers, meeting ASIL-B timing constraints. |
| Programmable I/O matrix | Full routing flexibility between peripherals and GPIOs - allows layout-optimized pin assignment without redesigning silicon or PCB. |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Touch-sensitive door lock/unlock and window control interface in OEM door panels. IC Role / Device Role / Timing Role: Main MCU executing CAPSENSE™ scan, button debouncing, LIN bus communication, and LED feedback timing. Use Value: Single-chip integration replaces discrete touch controller + MCU + LIN transceiver, reducing board area by 35% and BOM cost by $1.20/unit. | Use Scenario: Capacitive slider and push-button interface for HVAC temperature and fan-speed adjustment. IC Role / Device Role / Timing Role: Real-time CAPSENSE™ acquisition with >5:1 SNR, PWM-driven LED dimming, and I²C communication to main HVAC ECU. Use Value: Water-tolerant sensing ensures reliable operation during condensation events; Deep Sleep mode extends battery backup runtime during vehicle off-state. |
| Seat Position Memory System | Steering Wheel Controls |
Use Scenario: Non-contact position sensing and memory recall for driver seat adjustment via capacitive sliders and buttons. IC Role / Device Role / Timing Role: CAPSENSE™ CSD acquisition, EEPROM emulation in flash, CAN message framing via SCB in UART-to-CAN bridge mode. Use Value: Eliminates mechanical potentiometers and external CAN transceiver; achieves <10 ms response latency for seat movement commands. | Use Scenario: Multi-function touch controls (volume, cruise, voice) embedded in leather-wrapped steering wheel. IC Role / Device Role / Timing Role: Low-power CAPSENSE™ scanning in Deep Sleep, wake-on-touch interrupt generation, and SPI communication to main infotainment MCU. Use Value: 2.5 µA Deep Sleep current enables >10-year battery life in wireless steering wheel modules; programmable drive strength prevents false triggers from glove contact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4045LQI-S412 | Same core/peripherals but in 40-pin QFN package - adds 6 extra GPIOs and improved thermal dissipation. | Preferred for designs requiring >34 I/Os or higher ambient temperature margin (>105°C). | Select when PCB layout allows QFN and additional GPIOs are needed for sensor expansion or redundancy. |
| STM32G071KBT6 | ARM Cortex-M0+, 64 MHz, 128 KB flash, but lacks integrated CAPSENSE™ and programmable analog routing. | Requires external touch controller and analog signal conditioning for comparable capacitive sensing functionality. | Choose only if existing STM32 toolchain familiarity outweighs CAPSENSE™ integration benefit and BOM simplification. |
Compared with CY8C4045LQI-S412 and STM32G071KBT6, the CY8C4045PVS-S412 uniquely delivers certified automotive touch sensing, analog/digital reconfigurability, and SWD-debuggable silicon in a compact SSOP package - optimizing for cost, footprint, and development velocity in mid-tier automotive HMI designs.
Availability
CY8C4045PVS-S412 is available at Aetrix Electronics and suitable for automotive body control modules, climate control interfaces, seat position memory systems, and steering wheel touch controls requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4045PVS-S412 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
The PSoC™ 4000S family targets cost-sensitive automotive human-machine interfaces, integrating programmable analog/digital logic and certified touch sensing to replace multi-chip solutions in body electronics.
FAQ
What AEC-Q100 grade is assigned to CY8C4045PVS-S412?
CY8C4045PVS-S412 is qualified to AEC-Q100 Grade S (–40°C to +105°C), validated for use in passenger compartment and under-dash automotive applications where extended temperature operation is required. This qualification covers stress testing across temperature cycling, humidity bias, and ESD robustness per AEC specification Rev G.
Does CY8C4045PVS-S412 support hardware-based touch sensing without external components?
Yes - it integrates a dedicated capacitive sigma-delta (CSD) sensing engine with automatic hardware tuning, enabling robust touch button/slider operation using only PCB traces and no external RC networks or dedicated touch controller ICs. All 34 GPIOs support CAPSENSE™ with >5:1 SNR and water tolerance.
Can the serial communication blocks (SCBs) operate simultaneously in different protocols?
Yes - the two SCBs are fully independent and can be configured at runtime to operate concurrently as I²C master, SPI slave, UART transmitter, or any combination thereof. Each SCB has its own clock, FIFO, and interrupt vector, enabling simultaneous communication with multiple sensors and ECUs without software arbitration.
Is SWD debug supported in production units without special firmware or fuses enabled?
Yes - Arm Serial-Wire Debug is implemented in silicon and functional on all production CY8C4045PVS-S412 devices. Debug access is enabled by default; disabling requires explicit flash protection configuration via PSoC Creator or secure bootloader - no hardware fuse or special test mode is needed for standard development or field diagnostics.
CY8C4045PVS-S412 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™ 4 CY8C4000S
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 24
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 1x10b SAR; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4045PVS-S412 FAQ
1.How can I place an order for CY8C4045PVS-S412 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4045PVS-S412 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 CY8C4045PVS-S412 reliable?
The price and inventory of CY8C4045PVS-S412 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4045PVS-S412 is usually 5 days.
3.What payment methods are accepted for CY8C4045PVS-S412?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4045PVS-S412 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4045PVS-S412?
CY8C4045PVS-S412 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4045PVS-S412 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 CY8C4045PVS-S412?
For technical support, including CY8C4045PVS-S412 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4045PVS-S412 requirements.
6.How does Aetrix verify that CY8C4045PVS-S412 is sourced from the original manufacturer or authorized distributors?
All CY8C4045PVS-S412 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 CY8C4045PVS-S412 meets industry standards.
7.What is the process for return or replacement of CY8C4045PVS-S412?
All CY8C4045PVS-S412 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4045PVS-S412, 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 CY8C4045PVS-S412 part is unused and in its original packaging.
Return procedure for CY8C4045PVS-S412:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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