Infineon Technologies CY8C4245PVQ-482

Overview

CY8C4245PVQ-482 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M0 programmable system-on-chip (PSoC® 4200 family) with 32 kB flash, 4 kB SRAM, 12-bit 1-Msps SAR ADC, two opamps, and four UDB-based programmable digital blocks. It integrates capacitive sensing (CapSense® CSD), LCD drive, and dual reconfigurable SCB peripherals (I²C/SPI/UART) in a 48-pin TQFP package for embedded control applications requiring mixed-signal flexibility and field-tunable analog/digital logic.

For engineers reviewing the CY8C4245PVQ-482 datasheet, CY8C4245PVQ-482 pinout, CY8C4245PVQ-482 application, or CY8C4245PVQ-482 equivalent, key selection criteria include its 48-MHz CPU clock, Deep Sleep mode with 20-nA current draw, CapSense SNR >5:1, TCPWM kill-signal triggering for motor control, and SWD debug interface compatibility with industry-standard Arm tools.

Technical Context

The device implements a single-layer AHB-Lite interconnect between CPU, memory, and peripherals, with dedicated analog routing to CTBm blocks and digital routing via DSI to UDBs. Its clock system includes IMO (internal main oscillator), ILO (low-power internal oscillator), and external crystal support, enabling dynamic clock gating across five power modes including Hibernate with SRAM retention.

Analog subsystem features include two opamps configurable as buffers, comparators, or ADC input drivers; a 12-bit SAR ADC with channel sequencer and signal averaging; and two IDACs supporting self- and mutual-capacitive sensing. Digital subsystem relies on four universal digital blocks (UDBs), each with eight macrocells and data path, programmable via Verilog or PSoC Creator schematic entry.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar mixed-signal microcontroller applications.

Compared with CY8C4245PVQ-482, CY8C4247LQI-BL483 adds integrated BLE but removes TQFP packaging and increases thermal constraints; STM32F072RBT6 offers larger memory and broader tool support but lacks hardware CapSense, programmable analog, and UDB-based logic-requiring external components for equivalent mixed-signal functionality.

Availability

CY8C4245PVQ-482 is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, motor control modules, and medical sensor nodes requiring stable component supply across extended temperature ranges (–40 °C to +105 °C).

Supply support for CY8C4245PVQ-482 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, delivering power systems, microcontrollers, sensors, and security solutions for automotive, industrial, and IoT markets.

CY8C4245PVQ-482 belongs to the PSoC® 4200 product line, designed specifically for embedded systems requiring field-reconfigurable analog and digital logic, capacitive sensing, and low-power mixed-signal control in space-constrained industrial and consumer applications.

FAQ

Does CY8C4245PVQ-482 support debugging after flash protection is enabled?

Yes, but only in Open or Protected mode. In Open mode, full SWD debug access is available. In Protected mode, debug access is disabled until flash is fully erased. In Kill mode, all debug interfaces are permanently disabled and cannot be re-enabled-even with full erase-making it irreversible for security-critical deployments.

Can all 36 GPIOs be used simultaneously for CapSense?

No. While all 36 GPIOs are CapSense-capable, simultaneous use depends on mutual capacitance scan matrix size and IDAC current limits. The maximum supported CapSense channels is 32 in self-capacitance mode or 16×16 in mutual-capacitance mode, constrained by analog routing resources and CTBm block allocation.

What is the minimum supply voltage for Deep Sleep mode operation?

The device operates in Deep Sleep mode down to 1.71 V. At this voltage, the ILO remains active, allowing wake-up via GPIO, RTC, or low-power comparator, while flash and SRAM retain state. Below 1.71 V, brown-out detection triggers reset to prevent unreliable operation.

Is PSoC Creator required to develop firmware for CY8C4245PVQ-482?

No. While PSoC Creator provides schematic-based design and pre-verified components, the device is fully compatible with Arm GCC, Keil MDK, and IAR Embedded Workbench. Standard CMSIS headers and HAL libraries are available, enabling firmware development using industry-standard IDEs and build systems without proprietary tools.