Infineon Technologies CY8C24223A-24PXI

Overview

CY8C24223A-24PXI from Cypress Semiconductor is a programmable 8-bit Harvard-architecture PSoC® SoC featuring an M8C CPU running at up to 24 MHz, 4 KB flash, 256 bytes SRAM, and integrated analog/digital blocks including six analog and four digital PSoC blocks. It operates from 2.4 V to 5.25 V (or down to 1.0 V with on-chip switch-mode pump), supports industrial temperature range (–40 °C to +85 °C), and targets embedded control applications requiring mixed-signal integration and in-system reprogrammability.

For engineers reviewing the CY8C24223A-24PXI datasheet, CY8C24223A-24PXI pinout, CY8C24223A-24PXI application, or CY8C24223A-24PXI equivalent, key selection criteria include its 28-pin SSOP package, 24 MHz IMO clock accuracy (±5%), configurable GPIO drive modes (25 mA sink/10 mA source), I²C/SPI/UART peripheral support, and EEPROM emulation in flash - all critical for low-voltage sensor interface and motor control designs.

Technical Context

The CY8C24223A-24PXI implements a fixed-function M8C core with interrupt controller (11 vectors), sleep/watchdog timers, and multiple clock sources: 24 MHz internal main oscillator (IMO), 32 kHz internal low-speed oscillator (ILO), and optional 32.768 kHz external crystal oscillator (ECO) with PLL for crystal-accurate 24 MHz system clock generation.

Analog resources include six rail-to-rail PSoC blocks supporting up to 14-bit ADCs, 9-bit DACs, PGAs, and programmable filters; digital resources comprise four 8-bit blocks combinable into 8–32-bit timers, PWMs, UART, SPI, I²C (slave/master/multi-master), CRC, and PRS modules - all routed via global digital/analog interconnects to any GPIO.

Key Specifications

Pinout & Package

Package: 28-pin SSOP (Small Outline Integrated Circuit), 300 mil width, JEDEC MS-012AC compliant, thermal pad not present, moisture sensitivity level (MSL) 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C24423A-24PXI, this part trades EEPROM capacity and analog routing for lower unit cost and identical footprint; versus CY8C24123A-24PXI, it delivers higher analog integration and hardware I²C - making it optimal for mid-complexity sensor fusion and motor control where both analog precision and digital protocol robustness matter.

Availability

CY8C24223A-24PXI is available at Aetrix Electronics and suitable for industrial sensor nodes, capacitive touch interfaces, motor control modules, and smart power outlets requiring stable component supply and long-term manufacturability.

Supply support for CY8C24223A-24PXI 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

Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable embedded solutions, connectivity, and memory technologies for industrial, automotive, and consumer markets.

The CY8C24x23A PSoC 1 family was designed to replace discrete analog/digital components with a single configurable chip for cost-sensitive, low-to-mid complexity embedded control - emphasizing rapid prototyping, field-upgradable firmware, and analog signal integrity at 24 MHz operation.

FAQ

What is the maximum operating frequency of the M8C core in CY8C24223A-24PXI?

The M8C CPU core operates at up to 24 MHz using the internal main oscillator (IMO), with ±5% accuracy over temperature and voltage. When driven by the PLL with a 32.768 kHz crystal, it achieves a stable 24 MHz system clock with crystal-grade accuracy - essential for time-critical communication protocols like UART or I²C timing compliance.

Does CY8C24223A-24PXI support true hardware I²C?

Yes, CY8C24223A-24PXI includes a dedicated hardware I²C module supporting slave, master, and multi-master modes up to 400 kHz. Unlike bit-banged implementations, this module handles arbitration, clock stretching, and ACK/NACK generation autonomously - reducing CPU load and improving bus reliability in noisy industrial environments.

Can the device operate below 2.4 V, and how is analog performance maintained?

Yes, the on-chip switch-mode pump (SMP) enables operation down to 1.0 V while maintaining full analog block functionality. The SMP generates a regulated 1.8 V supply for analog circuits, preserving PGA gain accuracy, ADC linearity, and comparator hysteresis - verified across the full –40 °C to +85 °C range per datasheet characterization.

Is partial flash update supported, and what is the minimum erasable block size?

Yes, partial flash updates are supported with 64-byte erasable blocks. This allows firmware patches or configuration changes without full chip erase, preserving calibration data and user parameters stored elsewhere in flash. Each 64-byte block has independent protection settings, enabling secure IP partitioning within the same device.