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Infineon Technologies CY8C4045PVI-DS402
- Part No.:
- CY8C4045PVI-DS402
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C4045PVI-DS402.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,306
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Product details
Overview
CY8C4045PVI-DS402 from Infineon Technologies (formerly Cypress) is a programmable System-on-Chip (SoC) featuring a 48 MHz Arm® Cortex®-M0 CPU, 32 kB flash, 4 kB SRAM, four 16-bit TCPWM blocks, and three reconfigurable serial communication blocks (SCBs) supporting I²C/SPI/UART. It integrates programmable analog and digital logic for embedded control in space-constrained industrial sensors.
For engineers reviewing the CY8C4045PVI-DS402 datasheet, CY8C4045PVI-DS402 pinout, CY8C4045PVI-DS402 application, or CY8C4045PVI-DS402 equivalent, key selection criteria include its 28-pin SSOP package, Deep Sleep mode with GPIO wake-up, UDB-based digital logic reconfiguration, and SWD debug interface compatibility with Arm-standard tools.
Technical Context
The device implements a single-layer AHB-Lite interconnect linking the Cortex-M0 core, 32 kB flash with Read Accelerator, and 4 kB SRAM. Its clock system combines a trimmed 24–48 MHz IMO (±2% accuracy) and a 40 kHz ILO for low-power timing, with six 16-bit dividers enabling precise peripheral clock generation.
Digital subsystems include four Universal Digital Blocks (UDBs), each with 8 macrocells and an 8-bit datapath, plus a Programmable I/O Block (PRGIO) for Boolean logic in signal paths. Analog resources comprise two low-power comparators and configurable op-amp inputs routed via the I/O Subsystem (IOSS).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0 @ 48 MHz with single-cycle 32-bit multiply - enables deterministic real-time control loops without external math acceleration. |
| Flash Memory | 32 kB with Read Accelerator - delivers ~85% of SRAM access speed, reducing instruction fetch stalls in interrupt-driven firmware. |
| SRAM | 4 kB - sufficient for stack, heap, and peripheral buffers in sensor node or motor control applications with minimal external memory. |
| TCPWM Blocks | Four 16-bit timer/counter/PWM units - support center-aligned PWM for motor drive and comparator-triggered kill signals for safety-critical shutdown. |
| SCBs | Three serial communication blocks - each dynamically reconfigurable as I²C, SPI, or UART at runtime, enabling flexible peripheral connectivity without hardware redesign. |
| Supply Range | 1.71 V to 5.5 V - allows direct interfacing with 3.3 V or 5 V legacy systems and battery-powered operation down to coin-cell voltage. |
| Deep Sleep Current | 1.3 µA typical - enables multi-year operation in wireless sensor nodes using intermittent wake-up via GPIO or comparator events. |
Pinout & Package
Package: 28-pin SSOP (0.635 mm pitch), 11.5 mm × 7.6 mm footprint, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 1.71–5.5 V; powers CPU, flash, SRAM, and digital peripherals - requires local 100 nF decoupling. |
| VSS | Ground reference | Common return path for all digital and analog circuits; must be connected to low-impedance PCB ground plane. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures reliable startup without external components unless extended debounce needed. |
| SWDCLK / SWDIO | Serial Wire Debug interface | 2-wire JTAG-compatible debug port - enables full on-chip programming, breakpoint, and watchpoint debugging using standard Arm tools. |
| P0[0]–P0[7] | Programmable GPIO Port 0 | Eight pins with configurable drive strength, slew rate, and analog/digital routing - supports CapSense®, comparator inputs, or SCB signal assignment. |
| P1[0]–P1[7] | Programmable GPIO Port 1 | Eight pins supporting PRGIO logic, TCPWM outputs, or SCB functions - enables custom digital signal conditioning in I/O path. |
| P2[0]–P2[5] | Programmable GPIO Port 2 | Six pins with analog mux support - routes to LP comparators, op-amp inputs, or reference voltage sources for sensor front-end design. |
Key Features
| Feature | Design Value |
|---|---|
| UDB-based programmable logic | Four independent 8-macrocell UDBs allow field-upgradable state machines or custom digital filters without changing silicon - reduces BOM count and design iteration time. |
| Runtime-reconfigurable SCBs | Each SCB can switch between I²C, SPI, and UART protocols under firmware control - eliminates need for multiple fixed-function peripherals or external protocol translators. |
| Deep Sleep with GPIO wakeup | Enters 1.3 µA Deep Sleep and wakes within 5 µs on any of 21 GPIOs - enables ultra-low-power sensing with sub-second response latency. |
| Flash protection & debug disable | Hardware-enforced flash lock and optional SWD disable prevent unauthorized readout or reprogramming - meets basic IP protection requirements for OEM firmware. |
| CapSense®-ready I/O | GPIOs support capacitive sensing with integrated IDACs and CSD block routing - enables touch buttons, sliders, or proximity detection without external components. |
Applications
| Industrial Sensor Node | Smart Motor Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data over I²C to gateway MCU. IC Role / Device Role / Timing Role: Main controller executing sensor polling, CapSense® button interface, and I²C master communication; uses ILO for Deep Sleep timing and IMO for burst-mode processing. Use Value: 1.3 µA Deep Sleep extends battery life to >5 years; UDBs implement CRC checksum logic in hardware, offloading CPU during transmission. | Use Scenario: Closed-loop BLDC motor driver with hall-effect feedback and current sensing. IC Role / Device Role / Timing Role: Real-time motor commutation controller generating center-aligned PWM via TCPWM blocks; comparator-triggered kill signal halts output on overcurrent event. Use Value: Hardware-synchronized PWM dead-time insertion and fault response <100 ns ensures MOSFET safety; PRGIO routes hall signals directly to UDB for edge detection without CPU intervention. |
| IoT Edge Gateway Interface | Medical Diagnostic Handheld |
Use Scenario: Protocol bridge converting UART commands from legacy medical device to BLE module via SPI. IC Role / Device Role / Timing Role: Dual-role SCB: one as UART slave receiving commands, another as SPI master driving BLE module; UDBs handle command parsing and packet framing. Use Value: Runtime SCB reconfiguration allows dynamic switching between diagnostic modes without firmware reload; 48 MHz CPU handles encryption and packet assembly in real time. | Use Scenario: Portable pulse oximeter with optical sensor front-end and OLED display interface. IC Role / Device Role / Timing Role: Analog front-end controller acquiring ADC samples, driving LED current via TCPWM, and managing I²C OLED display; uses CapSense® for touch UI. Use Value: Integrated LP comparators enable automatic LED current calibration against photodiode feedback; 4 kB SRAM stores waveform buffers for real-time SpO₂ calculation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4045LQI-DS402 | Same die, 48-ball QFN package (6 × 6 mm); higher pin count (34 GPIOs) and thermal performance. | Better suited for designs requiring >21 GPIOs or enhanced thermal dissipation in continuous active mode. | Select when board layout allows QFN and additional I/O or thermal headroom is required. |
| STM32L432KCU6 | Arm Cortex-M4F @ 80 MHz, 256 kB flash, no programmable logic; includes FPU and AES accelerator. | Lacks UDBs and analog routing flexibility; superior for floating-point math but inflexible for custom digital logic or mixed-signal routing. | Choose when algorithmic processing dominates and fixed peripherals meet all interface needs. |
Compared with CY8C4045LQI-DS402, the PVI variant offers lower profile and simpler assembly in SSOP; versus STM32L432KCU6, it trades raw compute for hardware-configurable logic and analog integration - critical for sensor fusion or protocol adaptation where firmware-only solutions increase latency or code size.
Availability
CY8C4045PVI-DS402 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart motor controllers, IoT edge gateways, and medical handheld devices requiring stable component supply across long-lifecycle production programs.
Supply support for CY8C4045PVI-DS402 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and secure embedded systems.
This part belongs to the PSoC 4200DS family - designed for cost-sensitive, space-constrained embedded applications requiring both programmable analog/digital logic and Arm-based firmware execution in a single chip.
FAQ
What development tools are supported for CY8C4045PVI-DS402?
PSoC Creator IDE is the primary development environment, providing schematic-based hardware design, API-driven firmware generation, and integrated SWD debugging. It fully supports this device's UDBs, TCPWM, and SCBs. Arm GCC toolchains and third-party IDEs like Keil MDK or IAR Embedded Workbench are also compatible via standard CMSIS definitions and SWD interface.
Does CY8C4045PVI-DS402 support capacitive sensing without external components?
Yes - it integrates CapSense® CSD (Capacitive Sigma-Delta) hardware with IDACs, analog muxes, and dedicated routing to GPIOs. Up to 21 self- or mutual-capacitance sensors can be implemented using only PCB traces and no external ICs or resistors, with built-in noise immunity and auto-tuning algorithms in the CapSense® Component Library.
Can the flash memory be used to emulate EEPROM functionality?
Yes - the 32 kB flash includes dedicated emulation routines in the supervisory ROM (SROM) and PSoC Creator provides a "Flash Emulation" component. It supports byte-level read/write/erase operations with wear leveling across 128-byte pages, enabling up to 100,000 write cycles per logical address for configuration storage or data logging.
Is the SWD debug interface always accessible after programming?
No - debug access can be permanently disabled via firmware by locking the SWD pins and setting flash protection bits. Once disabled, re-enabling requires full chip erase, which clears all user code and protected data. This behavior is intentional for IP security and aligns with Infineon's device security model for production firmware deployment.
CY8C4045PVI-DS402 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™ 4 CY8C42xx-DS
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- 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:
- 21
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4045PVI-DS402 FAQ
1.How can I place an order for CY8C4045PVI-DS402 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4045PVI-DS402 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 CY8C4045PVI-DS402 reliable?
The price and inventory of CY8C4045PVI-DS402 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4045PVI-DS402 is usually 5 days.
3.What payment methods are accepted for CY8C4045PVI-DS402?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4045PVI-DS402 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4045PVI-DS402?
CY8C4045PVI-DS402 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4045PVI-DS402 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 CY8C4045PVI-DS402?
For technical support, including CY8C4045PVI-DS402 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4045PVI-DS402 requirements.
6.How does Aetrix verify that CY8C4045PVI-DS402 is sourced from the original manufacturer or authorized distributors?
All CY8C4045PVI-DS402 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 CY8C4045PVI-DS402 meets industry standards.
7.What is the process for return or replacement of CY8C4045PVI-DS402?
All CY8C4045PVI-DS402 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4045PVI-DS402, 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 CY8C4045PVI-DS402 part is unused and in its original packaging.
Return procedure for CY8C4045PVI-DS402:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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