Infineon Technologies CY8C24423-24PVI

Overview

CY8C24423-24PVI from Cypress Semiconductor is a PSoC™ (Programmable System-on-Chip) mixed-signal array featuring an 8-bit M8C CPU core, 4 KB flash program memory, 256 bytes SRAM, and configurable analog/digital blocks including two 8-bit ADCs, two 8-bit DACs, and up to 28 GPIO pins. It operates at 24 MHz max clock speed with internal IMO (±5% accuracy) and supports I²C, SPI, and UART via software-implemented protocols. Used in embedded sensor interface and industrial control modules requiring reconfigurable signal conditioning.

For engineers reviewing the CY8C24423-24PVI datasheet, CY8C24423-24PVI pinout, CY8C24423-24PVI application, or CY8C24423-24PVI equivalent, key selection factors include its programmable analog blocks, on-chip flash/SRAM configuration, 24-pin SSOP package footprint, and support for low-power sleep modes with wake-on-pin-change capability.

Technical Context

The CY8C24423-24PVI integrates a hardwired M8C 8-bit RISC core with Harvard architecture, 24 MHz maximum system clock derived from internal IMO or external crystal, and dual independent analog subsystems each containing op-amps, comparators, and switched-capacitor blocks. Its digital routing matrix enables flexible interconnection of user modules without fixed hardware paths.

It supports three clock sources: 24 MHz internal main oscillator (IMO), 32 kHz external crystal oscillator (ECO), and low-power internal low-speed oscillator (ILO). Sleep mode current is 10 µA typical at 3 V, with wake-up latency under 10 µs from deep sleep using GPIO or timer events.

Key Specifications

Pinout & Package

Package: 24-pin SSOP (0.150" body width), JEDEC MS-013AC, 0.635 mm pitch, thermal pad not included. RoHS-compliant, Pb-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C24223-24PVI, the CY8C24423-24PVI offers double flash/SRAM for enhanced firmware flexibility; versus CY8C24823-24PVI, it reduces cost while retaining full analog/digital configurability for mid-complexity designs.

Availability

CY8C24423-24PVI is available at Aetrix Electronics and suitable for industrial sensor nodes, smart building interfaces, portable medical monitors, and automated test equipment front-ends requiring stable component supply and long-term manufacturability.

Supply support for CY8C24423-24PVI 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) designs programmable mixed-signal and digital ICs for embedded control, sensing, and connectivity applications.

The CY8C24xxx PSoC family targets cost-sensitive, low-power embedded systems needing configurable analog and digital functions in a single chip - eliminating discrete signal chain components and reducing PCB area.

FAQ

Does CY8C24423-24PVI support hardware UART or I²C peripherals?

No. The CY8C24423-24PVI does not include dedicated hardware UART or I²C controllers. Communication protocols must be implemented in firmware using GPIO bit-banging or through PSoC Designer's pre-verified User Modules that leverage the device's programmable digital blocks and timers for precise timing control.

What is the maximum operating temperature for CY8C24423-24PVI?

The CY8C24423-24PVI is rated for industrial temperature range: –40 °C to +85 °C ambient. This specification is validated per the preliminary datasheet Rev. *E and applies to continuous operation under specified voltage and load conditions.

Can the internal oscillators be used simultaneously for different clock domains?

Yes. The IMO (24 MHz), ILO (32 kHz), and ECO (32.768 kHz) can operate concurrently. Clock routing allows assignment of IMO to CPU/core logic, ILO to watchdog/sleep timer, and ECO to real-time counter - enabling independent low-power timing and high-speed processing.

Is there hardware support for capacitive touch sensing on CY8C24423-24PVI?

Yes. The device includes dedicated CapSense® hardware within its analog subsystems, supporting up to 16 self-capacitance or mutual-capacitance touch inputs using P1 pins. Sensing is performed by the on-chip IDAC and comparator blocks without CPU intervention during measurement cycles.