Datasheet Summary
CY8C9520A CY8C9540A CY8C9560A
20-, 40-, and 60-Bit I/O Expander with EEPROM
Features
- I2C interface logic electrically patible with SMBus
- Up to 20 (CY8C9520A), 40 (CY8C9540A), or 60 (CY8C9560A) I/O data pins independently configurable as inputs, outputs, Bi-directional input/outputs, or PWM outputs
- 4/8/16 PWM sources with 8-bit resolution
- Extendable soft addressing algorithm allowing flexible I2C address configuration
- Internal 3-/11-/27-Kbyte EEPROM
- User default storage, I/O port settings in internal EEPROM
- Optional EEPROM write disable (WD) input
- Interrupt output indicates input pin level changes and pulse width modulator (PWM) state changes
- Internal power on reset...