CY8C20236A PSoC? Functional Overview
The PSoC family consists of on-chip controller devices, which
are designed to replace multiple traditional microcontroller unit
(MCU)-based components with one, low cost single-chip
programmable component. A PSoC device includes
configurable analog and digital blocks, and programmable
interconnect. This architecture allows the user to create
customized peripheral configurations, to match the requirements
of each individual application. Additionally, a fast CPU, Flash
program memory, SRAM data memory, and configurable I/O are
included in a range of convenient pinouts.
The architecture for this device family, as shown in the Logic
Block Diagram on page 2, consists of three main areas:
■ The Core
■ CapSense Analog System
■ System Resources (including a full-speed USB port).
A common, versatile bus allows connection between I/O and the
Each CY8C20x36A/66A PSoC device includes a dedicated
CapSense block that provides sensing and scanning control
circuitry for capacitive sensing applications. Depending on the
PSoC package, up to 36 GPIO are also included. The GPIO
provides access to the MCU and analog mux.
The PSoC Core is a powerful engine that supports a rich
instruction set. It encompasses SRAM for data storage, an
interrupt controller, sleep and watchdog timers, and IMO and
ILO. The CPU core, called the M8C, is a powerful processor with
speeds up to 24 MHz. The M8C is a 4-MIPS,
8-bit Harvard-architecture microprocessor.