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CY8C9520A - 20 - 40 and 60 Bit I/O Expander

Description

9 Extendable Soft Addressing 9 Interrupt Pin (INT) 9 Write Disable Pin (WD) 9 External Reset Pin (XRES) 9 Working with PWMs 9 Register Mapping Table 11 Register Descriptions 11 Input Port Registers (00h 07h) 11 Output Port Registers (08h

0Fh) 11 Int.

Features

  • I2C interface logic electrically compatible 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 disabl.

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Full PDF Text Transcription

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CY8C9520A CY8C9540A CY8C9560A 20-, 40-, and 60-Bit I/O Expander with EEPROM Features ■ I2C interface logic electrically compatible 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 (POR) ■ Internal configurable watchdog timer Top Level Block Diagram WD EEPROM User Settings Area Us
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