NXP Semiconductors PCA9535HF,118 Frequency - Clock: 400kHz Includes: POR Interface: I??C, SMBus Interrupt Output: Yes Mounting Type: Surface Mount Number Of I /o: 16 Operating Temperature: -40?°C ~ 85?°C Package / Case: 24-WQFN Exposed Pad, 24-HWQFN Series: - Voltage - Supply: 2.3 V ~ 5.5 V Other Names: 935284457118, PCA9535HF-T