Description The CS8816 is a 16-Bit constant current LED driver IC which is designed for LED displays. The output current can be adjusted by using an external resistor. All outputs will have the same current drive level which is crucial in LED display application. This driver has built-in 16-bit constant current outputs, a 16-bit shift register, and a 16-bit latch circuit. These drivers have been designed by using CMOS process. Feature Output current capability: 70mA each output Constant current range: 5mA to 70mA For common anode LED application Power supply voltage range VDD=3.0V Maximum output drain voltage 7.0V Serial data transfer rate: 25Mhz(Cascade Connection) Operating temperature range: -40 to 85 degree C Output current accura: Between Bits : < +-1.5 % Between ICs: < +-4 % Product Family CS8816AF -- 24SSOP(236mil, 1.0mm lead-pitch) CS8816AN -- 24SSOP(150mil, 0.64mm lead-pitch) CS8816CP -- 24Shrink PDIP(300mil, 1.78mm lead-pitch) Chiplus reserves the right to change product or s Feature Output current capability: 70mA each output Constant current range: 5mA to 70mA For common anode LED application Power supply voltage range VDD=3.0V Maximum output drain voltage 7.0V Serial data transfer rate: 25Mhz(Cascade Connection) Operating temperature range: -40 to 85 degree C Output current accura: Between Bits : < +-1.5 % Between ICs: < +-4 % Product Family CS8816AF -- 24SSOP(236mil, 1.0mm lead-pitch) CS8816AN -- 24SSOP(150mil, 0.64mm lead-pitch) CS8816CP -- 24Shrink PDIP(300mil, 1.78mm lead-pitch) Chiplus reserves the right to change product or specification without notice. 16-Bit LED Driver CS8816 2 Rev. 1.1 Pin Assignment GND VDD SERIAL-IN R-EXT CLOCK SERIAL-OUT LATCH ENABLE OUT0 OUT15 OUT1 OUT14 OUT2 OUT13 OUT3 OUT12 OUT4 OUT11 OUT5 OUT10 OUT6 OUT9 OUT7 OUT8 (AF/AN/CP) Block Diagram Truth Table CLOCK LATCH ENABLE SERIAL-IN OUT0--OUT7--OUT15 SERIAL-OUT Positive edge H L Dn /Dn--/Dn-7--/Dn-15 Dn-15 Positive edge L L Dn+1 No Change Dn-14 Positive edge H L Dn+2 /Dn+2--/ specification without notice. 16-B