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Updated at 02/11/2025 10:30:15(UTC+8)

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Description

The PCA9500PW is an 8-bit I/O Expander with an on-board 2-kbit EEPROM. The I/O expander"s eight quasi-bidirectional data pins can be independently assigned as inputs or outputs to monitor board level status or activate indicator devices such as LEDs. The system master writes to the I/O configuration bits in the same way as for the PCF8574. The data for each input or output is kept in the corresponding Input or Output register. The system master can read all registers. The EEPROM can be used to store error codes or board manufacturing data for read-back by application software for diagnostic purposes. The PCA9500 has 3 address pins with internal pull-up resistors allowing up to 8 devices to share the common two-wire I²C software protocol serial data bus. The fixed GPIO I²C-bus address is the same as the PCF8574 and the fixed EEPROM I²C-bus address is the same as the PCF8582C-2, so the PCA9500 appears as two separate devices to the bus master.
Self-timed write cycle
4-byte Page write operation
I²C-bus and SMBus Interface logic
Internal power-ON reset
Noise filter on SCL/SDA input
3 Address pins allowing up to 8 devices on the I²C-bus/SMBus
No glitch on power-up
Supports hot insertion
Power-up with all channels configured as inputs
Low standby current consumption
Latch-up testing is done to JEDEC standard JESD78 which exceeds 100mA

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PCA9500PW Specifications

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charges, duties and taxes.
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- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- Carefully inspected and packed by ManyChip warehouse
- Vacuum packaging
- Anti-static packaging
- Shockproof foam
The terms here are for reference only, the actual terms are subject to the sales quotation.
- Please confirm product specifications when ordering.
- MOQ refers to the minimum order quantity required to purchase each part.
- If you have special ordering instructions, please indicate them on the ordering page.
- Inspection (PSI) will be performed prior to shipment.
- Income Quality Control (IQC), 1000+ qualified dealers.
- Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device.
- Decapsulation control
- X-ray control
- XRF inspection
- Electrical testing
- Surface testing
-Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity

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