CY3242-IOXLite Rev. A Kit Contents:

• I2C Port Expander Demo Board using CY8C9520 PSoC(R) Port Expander Device
• USB Cable from Board to PC
• Kit Documentation and Design Files CD

• Integration
• Flexibility
• Compatibility

Cypress' three I2C port expander devices (CY8C9520, CY8C9540, CY8C9560) have the following features:

• Three compatible part families that seamlessly scale up or down
• 20, 40, or 60 individually configurable IO (widest range of IOs in the industry)
• 4, 8, or 16 PWMs that map to any pin or multiple pins (widest range of PWMs in the industry)
• 3 Kbytes, 11 Kbytes, or 27 Kbytes of User EEPROM (largest amount of user-accessible serial EEPROM in the industry)
• I2C communication up to 400 kHz
• Industrial temp range: -40 to 85 degrees Celsius
• Operating voltage: 3.0V - 5.25V
• 28-SSOP/48-SSOP/100-TQFP package options

Bottom line: One Cypress I2C Port Expander device replaces multiple port expander ICs from other vendors and flexibly integrates IO expansion, PWM functions and user EEPROM.