Compatible P/N: PCF8574 PCF8574P PCF8574AP Description: Condition: 100 Percent Brand New And High Quality Material: Electrical Components Color: See Pictures Encapsulation: DIP-16 Size: 19mm x 8.6mm x 7.2mm Quantity: 5 Pcs NOTE: Kindly compare your original item with the photos provided for the listing to make sure that you are purchasing the correct part. we don't provide technical assistance please make sure you are familiar with the product before purchasing. apologize in advance.