The Cypress CY8C28452-24PVXI is an 8-bit PSoC1 microcontroller built around the M8C core clocked at 24 MHz. It belongs to the CY8C28xxx series, a configurable mixed-signal family that packs a 4-channel 14-bit ADC and a 4-channel 9-bit DAC on the same die as the digital logic. That combination — a programmable analog front end alongside a standard MCU — is what sets this part apart from plain 8-bit controllers: it can handle sensor conditioning, signal scaling, and simple control loops without an external op-amp or ADC chip.
Industrial temperature grade and 3 V supply rail
The supply is a nominal 3 V rail, so the design needs a regulated 3 V source; the LVD (low-voltage detect) peripheral can monitor the rail and trigger a reset if it droops. The internal oscillator means no external crystal is required for the core clock, saving two pins and a few cents on the BOM.
The device brings I²C, IrDA, SPI, and UART/USART interfaces, which cover the common serial buses for sensor readout, display communication, and debug logging. The 24 I/O lines are enough for a medium-complexity control panel or a multi-sensor aggregator. On-chip POR, PWM, and WDT round out the supervisory and timing functions, reducing the need for external watchdog or reset ICs.
Cypress lists the CY8C28452-24PVXI as Active. No last-time-buy deadline, no successor to chase — just a standard procurement path through distribution.