Infineon Technologies CY8C24423A-12PVXET

Overview

CY8C24423A-12PVXET from Cypress Semiconductor is an AEC-Q100 qualified automotive-grade PSoC® programmable system-on-chip featuring an M8C 8-bit Harvard architecture CPU running at up to 12 MHz, 4 KB Flash/256 bytes SRAM, six analog and four digital configurable PSoC blocks, and operation across −40°C to +125°C. It integrates rail-to-rail analog functions (up to 14-bit ADC, 9-bit DAC, PGA), digital peripherals (UART, SPI, I²C, PWM, timers), and flexible GPIO with 25 mA sink capability - deployed in engine control modules for sensor signal conditioning and actuator timing.

For engineers reviewing the CY8C24423A-12PVXET datasheet, CY8C24423A-12PVXET pinout, CY8C24423A-12PVXET application, or CY8C24423A-12PVXET equivalent, key selection criteria include AEC-Q100 qualification, integrated analog/digital reconfigurability, 20-pin SSOP package compatibility, and support for automotive temperature-critical mixed-signal control tasks without external timing or signal-conditioning ICs.

Technical Context

The device implements a dual-domain architecture: its M8C core executes deterministic real-time firmware while routing signals through global digital and analog interconnects to configure user modules on-the-fly. Clocking combines a ±4% internal 24 MHz IMO, optional 32.768 kHz crystal with PLL for 24 MHz accuracy, and a low-power 32 kHz ILO for sleep/wake control.

Analog functionality is realized via six switched-capacitor and continuous-time blocks supporting simultaneous ADC conversion (Delta-Sigma/SAR), programmable gain amplification (up to 48×), and two 30 mA analog outputs; digital resources include four 8-bit blocks combinable into 8–32-bit timers, PWMs with dead-band, and full/half-duplex UART - all connectable to any of 20 GPIO pins.

Key Specifications

Pinout & Package

Package: 20-pin SSOP (Small Outline Package), 0.65 mm pitch, JEDEC MS-013AC compliant. Body dimensions: 7.2 mm × 5.3 mm × 1.95 mm (max). 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 XC836L-8FRA and S9S08DZ128F1MLH, CY8C24423A-12PVXET uniquely delivers field-programmable analog blocks and digital peripherals in a single AEC-Q100 Grade 1 package - enabling hardware-defined signal chains without layout changes across product variants.

Availability

CY8C24423A-12PVXET is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and body control modules requiring stable component supply across automotive production lifecycles.

Supply support for CY8C24423A-12PVXET 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 ICs for automotive, industrial, and consumer systems, emphasizing integration, configurability, and qualification rigor.

CY8C24x23A belongs to the automotive-extended PSoC 1 family - engineered specifically for AEC-Q100-compliant embedded control where analog signal fidelity, digital timing precision, and temperature resilience are co-dependent requirements.

FAQ

Is CY8C24423A-12PVXET pin-compatible with CY8C24223A?

Yes - both devices share identical 20-pin SSOP packaging and pin mapping per the 38-12029 Rev. *L datasheet. The primary difference is memory configuration: CY8C24423A provides 4 KB Flash and 256 bytes SRAM, while CY8C24223A offers 2 KB Flash and 128 bytes SRAM. Firmware compiled for one can run on the other if memory usage stays within the smaller device's limits.

Does CY8C24423A-12PVXET support I²C multi-master operation?

Yes - the integrated I²C module supports master, slave, and multi-master modes up to 400 kHz, as confirmed in Section 5 ("Additional System Resources") of datasheet 38-12029 Rev. *L. It includes arbitration logic and clock stretching support, enabling robust bus sharing among multiple controllers in distributed automotive networks.

Can the internal 24 MHz oscillator meet automotive timing accuracy requirements?

The internal main oscillator (IMO) has ±4% accuracy over temperature and voltage - sufficient for non-critical timing such as PWM generation and UART baud rate derivation. For precision timing (e.g., RTC or synchronized sampling), the device supports a 32.768 kHz external crystal with PLL to generate a crystal-accurate 24 MHz system clock, as detailed in the "Precision, programmable clocking" section.

What development tools are required to program CY8C24423A-12PVXET?

PSoC Designer™ v5.4 (legacy) is the official IDE for this PSoC 1 device, providing schematic-based user module configuration, C code generation, and ISSP programming. Hardware tools include the MiniProg1 or MiniProg3 programmers; full-speed in-circuit emulation requires the ICE-Cube debugger. All tools are documented in the "Development Tools" section of datasheet 38-12029 Rev. *L.