PCA9633TK-T 4-bit Fm I2C-bus LED driver - # of Addresses: 1 ; Enable: no ; I2C-bus: 1000 kHz; I2C-bus interface: Fast Mode Plus 30 mA SDA outputs for 4000 pF bus ; Max Sink Current per bit: 25 mA; Max Sink Current, per package: 100 mA; Number of bits: 4 ; Operating temperature: -40~85 Cel; Operating voltage: 2.3~5.5 VDC; PWMs: 5 (4 x 97 kHz dim and 1 x 97 kHz dim or 24 Hz to 10.73 sec blink)