Features

CY8C20x36/46/66, CY8C20396

CapSense™ Applications

■1.71V to 5.5V Operating Range

■Low Power CapSense™ Block

❐Configurable Capacitive Sensing Elements

❐Supports Combination of CapSense Buttons, Sliders, Touchpads, Touch Screens, and Proximity Sensor

■Powerful Harvard Architecture Processor

❐M8C Processor Speeds Running to 24 MHz

❐Low Power at High Speed

❐Interrupt Controller

❐Temperature Range: -40°C to +85°C

■Flexible On-Chip Memory

❐Three Program/Data Storage Size Options:

•CY8C20x36: 8K Flash / 1K SRAM

•CY8C20x46: 16K Flash / 2K SRAM

•CY8C20x66: 32K Flash / 2K SRAM

❐50,000 Flash Erase/Write Cycles

❐Partial Flash Updates

❐Flexible Protection Modes

❐In-System Serial Programming (ISSP)

■Full-Speed USB

❐Available on CY8C20396 and CY8C20666 Only

❐12 Mbps USB 2.0 Compliant

❐Eight Unidirectional Endpoints

❐One Bidirectional Control Endpoint

❐Dedicated 512 Byte Buffer

❐Internally Regulated at 3.3V

■Precision, Programmable Clocking

❐Internal Main Oscillator: 6/12/24 MHz ± 5%

❐Internal Low Speed Oscillator at 32 kHz for Watchdog and Sleep Timers

❐Precision 32 kHz Oscillator for Optional External Crystal (CY8C20x46/66 only)

❐0.25% Accuracy for USB with No External Components (CY8C20396 and CY8C20666 only)

■Programmable Pin Configurations

❐Up to 36 GPIO (Depending on Package)

❐Dual Mode GPIO: All GPIO Support Digital IO and Analog Input

❐25 mA Sink Current on All GPIO

❐Pull up, High Z, Open Drain Modes on All GPIO

❐CMOS Drive Mode(5 mA Source Current) on Ports 0 and 1:

•20 mA (at 3.0V) Total Source Current on Port 0

•20 mA (at 3.0V) Total Source Current on Port 1

■Versatile Analog Mux

❐Common Internal Analog Bus

❐Simultaneous Connection of IO

❐High PSRR Comparator

❐Low Dropout Voltage Regulator for All Analog Resources

■Additional System Resources

❐I2C™ Slave:

•Selectable to 50 kHz, 100 kHz, or 400 kHz

•No Clock Stretching Required (under most conditions)

•Implementation During Sleep Modes with Less Than 100 µA

•Hardware Address Validation

❐SPI™ Master and Slave: Configurable 46.9 kHz - 12 MHz

❐Three 16-Bit Timers

❐Watchdog and Sleep Timers

❐Internal Voltage Reference

❐Integrated Supervisory Circuit

■Complete Development Tools

❐Free Development Tool (PSoC Designer™)

❐Full Featured, In-Circuit Emulator and Programmer

❐Full Speed Emulation

❐Complex Breakpoint Structure

❐128K Trace Memory

■Package Options

❐CY8C20x36:

•16-Pin 3 x 3 x 0.6 mm QFN

•24-Pin 4 x 4 x 0.6 mm QFN

•32-Pin 5 x 5 x 0.6 mm QFN

❐CY8C20x46:

•16-Pin 3 x 3 x 0.6 mm QFN

•24-Pin 4 x 4 x 0.6 mm QFN

•32-Pin 5 x 5 x 0.6 mm QFN

❐CY8C20396: 24-Pin 4 x 4 x 0.6 mm QFN

❐CY8C20x66:

•32-Pin 5 x 5 x 0.6 mm QFN

•48-Pin 7 x 7 x 1.0 mm QFN (with USB)

•48-Pin SSOP

❐Selectable, Regulated Digital IO on Port 1

❐Configurable Input Threshold on Port 1

❐Hot Swap Capability on all Port 1 GPIO

Cypress Semiconductor Corporation • 198 Champion Court	•	San Jose, CA 95134-1709	•	408-943-2600
Document Number: 001-12696 Rev. *D		Revised March 17, 2009

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