Datasheet

CY8C20xx6A/H CapSense Design Guide Doc. No. 001-65973 Rev. *A 6
1. Introduction
1.1 How to Use This Document
This document provides design guidance for the CapSense

CY8C20XX6A/H family of devices. It is intended for
design engineers who are familiar with capacitive sensing technology and have chosen this specific family of devices
for their applications. For a thorough treatment of CapSense technology, including in-depth discussions of theory of
operation and complete product offering detail, refer to Getting Started with CapSense.
1.2 CY8C20xx6A/H CapSense Family Features
Cypress’s CY8C20xx6A/H is a low-power, high-performance, programmable touch sensing family of devices that
features:
 CapSense Successive Approximation, Electromagnetic Compatible (CSA_EMC) and CapSense Sigma Delta
(CSD) sensing technology
 SmartSense™ Auto-Tuning
 Supports up to 33 capacitive buttons and 5 sliders
 1.71- to 5.5-V operating voltage
 Up to 33 GPIOs
 Wide variety of packages: 16-pad QFN (3 × 3 × 0.6 mm) to 48-pad QFN (7 × 7 × 1.0 mm), 30-ball WLCSP
(2.2 × 2.3 × 0.4 mm), and 48-pin SSOP
 I
2
 Up to 32 KB flash and 2 KB SRAM
C, full speed USB, and SPI communication interfaces
 CY8C20xx6H with Haptic (tactile) feedback
 Additional peripherals:
 24-MHz Internal Main Oscillator (IMO)
 Three 16-bit timers
 20 × 2 LCD interface
 EEPROM emulation
 8- to 10-bit incremental ADC
 Internal voltage reference
 Two comparators