This document introduces the features and characteristics of PSoC® Mixed-Signal Array, including Low Power CapSense Block, Powerful Harvard Architecture Processor, Flexible On-Chip Memory, Complete Development Tools, Precision, Programmable Clocking and Programmable Pin Configurations.
The Cypress CY8C20534, CY8C20434, CY8C20334, and CY8C20234 are PSoC Mixed‑Signal Array devices that combine a low‑power CapSense block, a Harvard‑architecture M8C processor, flexible on‑chip memory, and extensive analog/digital configurability. They operate from 2.4 V to 5.25 V, support up to 28 analog inputs, and include built‑in I²C and SPI communication modules.
The datasheet provides detailed pinout tables for 16‑, 24‑ and 28‑pin packages, describes system resources such as low‑voltage detection, power‑on reset, and internal voltage references, and lists the development tools (PSoC Designer IDE) and support resources available from Cypress.
| Processor speed | up to 12 MHz |
|---|---|
| Operating voltage | 2.4 V to 5.25 V |
| Temperature range | -40 °C to +85 °C |
| Flash memory | 8 KB |
| SRAM | 512 Bytes |
| Analog inputs | up to 28 GPIO pins |
| I²C speeds | 50 kHz, 100 kHz, 400 kHz selectable |
| SPI speeds | 46.9 kHz to 3 MHz |
| Main oscillator accuracy | ±5 % at 6/12 MHz |
| Low‑speed oscillator | 32 kHz |
The device operates from 2.4 V to 5.25 V.
Up to 28 analog inputs are available on the GPIO pins.
Each device includes 8 KB of flash program storage and 512 Bytes of SRAM data storage.
I²C can be set to 50 kHz, 100 kHz, or 400 kHz, while SPI ranges from 46.9 kHz up to 3 MHz.