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CY8C9540 - (CY8C9520 - CY8C9560) I/O Expander

Download the CY8C9540 datasheet PDF. This datasheet also covers the CY8C9520 variant, as both devices belong to the same (cy8c9520 - cy8c9560) i/o expander family and are provided as variant models within a single manufacturer datasheet.

Features

  • Overview The CY8C95xx is a multi-port I/O expander with on-board useravailable EEPROM and several PWM outputs. All devices in this family operate identically but differ in I/O pins, number of PWMs, and internal EEPROM size. The CY8C95xx operates as two I2C slave devices. The first device is a multi-port I/O expander (single I2C address to access all ports via registers). The second device is a serial EEPROM. Dedicated configuration registers can be used to disable the EEPROM. The EE.

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Note: The manufacturer provides a single datasheet file (CY8C9520_CypressSemiconductor.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Cypress (Infineon)

Part Number Description
CY8C9540A 20 - 40 and 60 Bit I/O Expander
CY8C9520 (CY8C9520 - CY8C9560) I/O Expander
CY8C9520A 20 - 40 and 60 Bit I/O Expander
CY8C9560 (CY8C9520 - CY8C9560) I/O Expander
CY8C9560A 20 - 40 and 60 Bit I/O Expander

Full PDF Text Transcription

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www.DataSheet4U.com Cypress Semiconductor CY8C9520, CY8C9540, and CY8C9560 Preliminary Data Sheet 20-, 40-, and 60-Bit I/O Expander with EEPROM Features ■ ■ Overview The CY8C95xx is a multi-port I/O expander with on-board useravailable EEPROM and several PWM outputs. All devices in this family operate identically but differ in I/O pins, number of PWMs, and internal EEPROM size. The CY8C95xx operates as two I2C slave devices. The first device is a multi-port I/O expander (single I2C address to access all ports via registers). The second device is a serial EEPROM. Dedicated configuration registers can be used to disable the EEPROM. The EEPROM utilizes 2-byte addressing to support the 28-Kbyte EEPROM address space.
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