DESCRIPTION

· The CY8C95xxA is a multi-port I/O expander with onboard user-available EEPROM and multiple PWM outputs.

· It operates as two I2C slave devices: a multi-port I/O expander and a serial EEPROM.

· The device supports up to 20 (CY8C9520A), 40 (CY8C9540A), or 60 (CY8C9560A) I/O data pins, configurable as inputs, outputs, bidirectional I/O, or PWM outputs.

· It features an extendable soft addressing algorithm for flexible I2C address configuration.

· The internal EEPROM size varies: 3 KB (CY8C9520A), 11 KB (CY8C9540A), or 27 KB (CY8C9560A).

FEATURES

· I2C interface logic compatible with SMBus.

· Up to 4/8/16 PWM sources with 8-bit resolution.

· Internal power-on reset (POR) and configurable watchdog timer.

· Interrupt output (INT) for input pin level changes and PWM state changes.

· Optional EEPROM write disable (WD) input to block write operations.

· User default storage and I/O port settings in internal EEPROM.

APPLICATIONS

· Suitable for systems requiring multiple I/O expansions with configurable PWM outputs.

· Ideal for applications needing onboard EEPROM for user default storage and settings.

· Used in environments where flexible I2C address configuration is required.

· Applicable in systems that benefit from interrupt-driven input and PWM state monitoring.

· Suitable for designs requiring a combination of I/O expanders and EEPROM functionality.