Infineon Technologies CY8C23433-24PVXI

Overview

CY8C23433-24PVXI from Infineon Technologies (formerly Cypress Semiconductor) is a programmable 8-bit Harvard-architecture PSoC® SoC featuring an M8C CPU core running at up to 24 MHz, 8 KB flash, 256 bytes SRAM, and integrated analog/digital configurable blocks. It supports industrial temperature range (–40 °C to +85 °C), operates from 3.0 V to 5.25 V, and includes a high-speed 8-bit SAR ADC (300 kSPS) optimized for motor control.

For engineers reviewing the CY8C23433-24PVXI datasheet, CY8C23433-24PVXI pinout, CY8C23433-24PVXI application, or CY8C23433-24PVXI equivalent, key selection criteria include its on-chip analog block configurability (4 CT/SC blocks), digital peripheral flexibility (PWMs, UART, SPI, I²C), internal ±5% IMO clock, and GPIO drive capability (25 mA sink / 10 mA source).

Technical Context

The device implements a fixed-function M8C 8-bit CPU core with Harvard architecture, supporting 4 MIPS at 24 MHz and including dedicated multiply-accumulate hardware (8×8 → 32-bit). Its digital system comprises four 8-bit PSoC blocks that can be combined into 8-/16-/24-/32-bit peripherals such as timers, PWMs with dead-band, CRC generators, and full-duplex UART.

The analog system integrates one 8-bit SAR ADC (300 kSPS, monotonic), four configurable analog blocks (one CT + two SC per column, plus dedicated SAR8 column), programmable gain amplifiers (up to 93×), comparators with 16 thresholds, and two 30-mA analog output drivers - all routed via global analog interconnect to up to eight GPIO pins.

Key Specifications

Pinout & Package

Package: 28-pin SSOP (Small Outline Integrated Circuit, Plastic, Shrink), body width 5.3 mm, lead pitch 0.65 mm, JEDEC MO-153 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C23533-24PVXI, this part offers lower memory and peripheral count at reduced cost and power; versus STM32F030F4P6, it delivers true analog configurability and hardware-level peripheral synthesis-critical for sensor front-end and motor control where signal path latency and component count matter.

Availability

CY8C23433-24PVXI is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, programmable power supply monitors, and embedded HMI controllers requiring stable component supply across extended temperature and voltage ranges.

Supply support for CY8C23433-24PVXI 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 maintains full product continuity, documentation, and support for the PSoC® portfolio.

This device belongs to the PSoC 1 family - Infineon's first-generation programmable SoC platform designed for cost-sensitive embedded applications requiring flexible analog/digital integration without FPGA complexity or MCU software overhead.

FAQ

What development tools are required to program CY8C23433-24PVXI?

PSoC Designer™ IDE (discontinued but fully supported for legacy PSoC 1 devices) is mandatory for configuration, compilation, and ISSP programming. Hardware tools include the MiniProg1 or MiniProg3 programmer/debugger. No ARM-based tools or modern PSoC Creator/ModusToolbox support is available - this is a PSoC 1-specific workflow.

Does CY8C23433-24PVXI support USB or CAN interfaces?

No. The device lacks native USB or CAN transceivers or protocol stacks. It supports only UART, SPI, and I²C for serial communication. Any USB or CAN functionality must be implemented externally using bridge ICs (e.g., CP2102 for USB-UART, MCP2515 for CAN), as no on-die PHY or controller exists.

Can the internal 24 MHz oscillator meet tight timing requirements for motor control?

Yes - the internal main oscillator (IMO) provides ±5% accuracy over –40 °C to +85 °C, sufficient for most BLDC commutation timing. For tighter timing (e.g., servo position loops), use the optional 32.768 kHz crystal with PLL to generate a crystal-referenced 24 MHz clock, achieving ±20 ppm stability.

Is EEPROM emulation reliable for storing calibration data across 10+ years?

Yes - Cypress/Infineon specifies EEPROM emulation endurance at 50,000 write cycles with data retention >10 years at +85 °C. Emulation uses wear-leveling across flash sectors; actual retention depends on ambient temperature and write frequency, but field data confirms >15-year retention under typical industrial conditions.