blinkers (Freq. range: 152 Hz to 1.69 sec.)
PCA9550 2-bit LED blinker
PCA9551 8-bit LED blinker
PCA9552 16-bit LED blinker
PCA9553 4-bit LED blinker
PCA9625 Fm+ LED controller (24 V, 100 mA)
SAA1064 4 x 7 PC-bus LED driver with decimal
since 2 the logic hi/lo levels may not be recognized. Example for a typical IC slave device, the PCA9552. It will be SMBus compliant if: Timeout feature: SMBus has a timeout feature, resetting - 10 kHz < Fclock < 100 kHz the devices if a communication takes too long (thus - It the device works in a 3.3V