Infineon Technologies CY8C3245PVI-150

Overview

CY8C3245PVI-150 from Infineon Technologies (acquired Cypress Semiconductor) is a programmable 8-bit PSoC® 3 system-on-chip integrating an enhanced 8051 CPU, 64 KB flash, 8 KB RAM, 2 KB EEPROM, configurable analog/digital peripherals, and USB 2.0 FS interface. It operates from 1.71–5.5 V at up to 50 MHz, supports CapSense® for up to 62 touch sensors, and targets embedded control in industrial HMI, medical sensor interfaces, and low-power IoT endpoints.

For engineers reviewing the CY8C3245PVI-150 datasheet, CY8C3245PVI-150 pinout, CY8C3245PVI-150 application, or CY8C3245PVI-150 equivalent, key selection criteria include its 48-pin SSOP package, integrated 12-bit Delta-Sigma ADC (±1 LSB INL), 8-bit DAC, 24-channel UDB-based digital logic, and USBIO-capable pins for firmware updates and host communication.

Technical Context

The CY8C3245PVI-150 implements a single-cycle 8051 core with nested vector interrupt controller and 24-channel DMA, enabling deterministic real-time response without CPU overhead. Its clock tree includes a 3–24 MHz internal main oscillator (IMO, ±2% at 3 MHz), 50 MHz PLL, and 32.768 kHz RTC support via external crystal.

Analog resources include two voltage comparators, 1.024 V ±1% internal reference, and a Delta-Sigma ADC with <100 µV offset, 0.2% gain error, and 66 dB SINAD-enabling high-accuracy sensor signal conditioning. Digital flexibility derives from 24 Universal Digital Blocks (UDBs), each containing PAL/PLD logic and state machines, supporting UART, SPI, I²C, PWM, PRS, CRC, and quadrature decoding.

Key Specifications

Pinout & Package

Package: 48-pin SSOP (0.635 mm pitch), RoHS-compliant, body size 15.4 × 7.6 mm. Thermal pad not present; standard leaded plastic package optimized for reflow assembly and manual inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C3245PVI-150, the CY8C3246FVI-150 offers expanded I/O in a smaller footprint but requires requalification for thermal and soldering processes, while the CY8C4025PVI-432 trades USB and analog fidelity for ARM compatibility and lower unit cost-making it viable only when USB and metrology-grade ADC are not design-critical.

Availability

CY8C3245PVI-150 is available at Aetrix Electronics and suitable for industrial HMI, portable medical instrumentation, and smart energy metering requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY8C3245PVI-150 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 acquired Cypress Semiconductor in 2020 and now manufactures, supports, and extends the PSoC® portfolio with full backward compatibility and enhanced security features.

The CY8C32 series belongs to the PSoC® 3 platform-designed specifically for ultra-low-power, mixed-signal embedded control where analog precision, USB connectivity, and field-programmable logic must coexist on a single die.

FAQ

Does CY8C3245PVI-150 support USB device enumeration without external crystal?

Yes-it uses the internal 3–24 MHz IMO with USB-specific calibration to meet Full-Speed USB timing requirements (±0.25% deviation). The IMO is factory-trimmed and does not require an external crystal for basic HID or CDC class operation, though a 12 MHz crystal is recommended for maximum robustness in noisy environments.

What is the maximum achievable resolution for PWM-based DAC output using UDBs?

Using UDB-configured delta-sigma or PWM logic, the CY8C3245PVI-150 can generate up to 10-bit effective resolution at 48 kHz update rate. This is achieved by combining the 8-bit VDAC with UDB-based dithering and filtering-verified in AN81623 and PSoC Creator Component Library examples for audio and sensor bias applications.

Can all 29 GPIO pins simultaneously drive segment LCD and perform CapSense® sensing?

No-while all GPIO support both functions individually, simultaneous use is constrained by analog routing resources. Up to 46 segments × 16 commons require dedicated analog interconnect paths; CapSense® scanning consumes the same analog mux and IDAC channels. PSoC Creator's resource compiler enforces time-multiplexed allocation, limiting concurrent active segments and sensors to ~32 total nodes.

Is the 200 nA hibernate mode retained after power cycle or only during deep sleep?

The 200 nA hibernate mode retains RAM contents and register states across power cycles only when VBAT is externally supplied (e.g., coin cell on VBAT pin). Without VBAT, hibernate reverts to cold-start behavior on next VDDD application; the 200 nA spec assumes continuous VBAT backup and applies solely to brown-out-free wake-from-hibernate transitions.