ST2221C Datasheet, PDF (3/17 Pages) List of Unclassifed Manufacturers – 16 BIT CONSTANT CURRENT LED DRIVERS

Pin Connection (Top view)
GND 1
SERIAL-IN 2
CLOCK ³
LATCH ⁴
OUT0 5
OUT1 6
OUT2 7
OUT3 8
OUT4 9
OUT5 10
OUT6 11
OUT7 ¹²
24 V_DD
23 R-EXT
22 SERIAL-OUT
21 _ENABLE
20 OUT15
19 OUT14
18 _OUT13
17 OUT12
16 OUT11
15 OUT10
14 _OUT9
13 _OUT8
ST2221C
Block Diagram
R-EXT
OUT0 OUT1
I-REG.
OUT15
ENABLE
LATCH
SERIAL-IN
CLOCK
Q
ST D
Q
ST D
DQ
CK
DQ
CK
Q
ST D
DQ
CK
DQ
CK
SERIAL-OUT
16-Bit Constant Current LED Drivers
-2-
Version：1.01