Infineon Technologies CY8C24423A-24LFXI

Overview

CY8C24423A-24LFXI from Cypress Semiconductor is a programmable mixed-signal System-on-Chip (SoC) integrating an M8C 8-bit Harvard architecture CPU, 4 KB Flash, 256 bytes SRAM, six configurable analog blocks, 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), delivers up to 24 MHz CPU speed, and supports industrial temperature range (–40°C to +85°C). It is used in embedded sensor interface, motor control feedback, and low-power industrial HMI systems.

For engineers reviewing the CY8C24423A-24LFXI datasheet, CY8C24423A-24LFXI pinout, CY8C24423A-24LFXI application, or CY8C24423A-24LFXI equivalent, key selection considerations include its 24-pin SOIC package, dual 14-bit ADC capability, I²C/UART/SPI peripheral support, configurable GPIO drive modes (25 mA sink, 30 mA analog output), and integrated 1.3 V precision voltage reference.

Technical Context

The CY8C24423A-24LFXI implements a fully configurable mixed-signal architecture where analog and digital resources are routed via global interconnects. Its M8C core executes at up to 24 MHz with ±2.5% internal oscillator accuracy, and supports ISSP for in-system programming. The device uses a 32-bit accumulator for 8×8 multiply operations and includes dedicated hardware for decimation and CRC generation.

Analog functionality is delivered through six independent PSoC blocks-three CT and three SC-enabling user-defined ADCs (6–14 bit), DACs (6–9 bit), PGAs (up to 93× gain), and filters. Digital peripherals are built from four 8-bit blocks combinable into 8–32-bit timers, PWMs, UARTs, and I²C masters/slaves, all connectable to any GPIO via global routing buses.

Key Specifications

Pinout & Package

The CY8C24423A-24LFXI is housed in a 24-pin SOIC (Small Outline Integrated Circuit) package with 300 mil body width and standard gull-wing leads. Pin assignments are validated per Cypress datasheet 38-12028 Rev. *J.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C24223A-24LFXI and CY8C24423A-24PVXI, the CY8C24423A-24LFXI provides identical mixed-signal configurability and 24 MHz operation but is uniquely optimized for cost-sensitive industrial applications using the standard SOIC package and industrial temperature rating.

Availability

CY8C24423A-24LFXI is available at Aetrix Electronics and suitable for industrial sensor interface, motor control feedback, and low-power HMI applications requiring stable component supply across multi-year production cycles.

Supply support for CY8C24423A-24LFXI 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 mixed-signal, analog, and RF solutions for embedded systems.

The CY8C24x23A PSoC family was designed to replace multiple discrete analog and digital components with a single configurable SoC for cost-sensitive industrial and consumer control applications.

FAQ

Is CY8C24423A-24LFXI pin-compatible with CY8C24223A-24LFXI?

Yes - both devices share identical 24-pin SOIC packaging, pin mapping, and electrical characteristics. They differ only in factory-programmed device identification bits and minor configuration fuses, making them functionally interchangeable in existing PCB layouts.

Does CY8C24423A-24LFXI support USB connectivity?

No - this device lacks native USB PHY or transceiver circuitry. It supports UART, SPI, and I²C for host communication. USB functionality requires external bridge ICs (e.g., CP2102) or migration to later-generation PSoC devices like CY8C4xxxx series.

Can the internal 24 MHz oscillator meet timing-critical UART baud rates?

Yes - the ±2.5% accuracy of the internal main oscillator (IMO) supports standard UART baud rates (e.g., 9600, 115200) with less than 1% error at 24 MHz, well within RS-232/RS-485 tolerance limits. For tighter tolerances, use the 32.768 kHz crystal with PLL.

What development tools are required to program CY8C24423A-24LFXI?

PSoC Designer 5.x is the official IDE, supporting schematic-based design, automatic code generation, and ISSP programming via MiniProg1/MiniProg3. Required hardware includes a compatible programmer/debugger and the CY3210-PSoCEval1 development kit for rapid prototyping and analog tuning.