PSoC1 mixed-signal MCU — what it brings to the BOM
The Infineon CY8C29466-24PVXI is an 8-bit M8C microcontroller from the PSoC®1 CY8C29xxx family, combining a 24 MHz processor with configurable analog and digital blocks on a single die. It carries 32 KB Flash program memory and 2K x 8 RAM, plus a 12-channel 14-bit ADC and a 4-channel 9-bit DAC — enough mixed-signal integration to replace a separate MCU plus external converter in many sensor-interface and control-loop applications. The 28-pin SSOP package keeps board area tight, and the -40°C to 85°C industrial temperature range fits factory automation, outdoor telecom, and automotive cabin environments.
24 MHz M8C core — what the speed buys you
At 24 MHz the M8C core handles typical PID loops and serial communication without stalling. The internal oscillator eliminates an external crystal in non-critical timing applications.
Analog integration: 12x14b ADC and 4x9b DAC
The 14-bit ADC on 12 channels covers multi-sensor front-ends without an external analog mux. The 9-bit DAC on four channels handles analog set-points or simple waveform generation.
Connectivity and I/O
I²C, SPI, and UART/USART cover the common serial buses for displays, memory, and module communication. With 24 I/O lines in a 28-pin package, roughly half the pins are available for GPIO after wiring the serial interfaces — enough for a small keypad, LED indicators, and a few discrete sensors.
Lifecycle and sourcing posture
The CY8C29466-24PVXI is listed as Active with ROHS3 compliance. No end-of-life notice or last-time-buy is on record.