DM164 SITI [Silicon Touch Technology Inc.], DM164 Datasheet - Page 5

• Manufacturer Part Number: DM164
• Description: 8x3-CHANNEL CONSTANT CURRENT LED DRIVER
• Manufacturer: SITI [Silicon Touch Technology Inc.]

VDD1,VDD2 Power supply terminal.
VSS1~4
R
R
R
IOUT0~11
IOUT12~23 LED driver outputs.
DIN
DOUT
DCK
DCKO
DCKPH
DOUTPH
LTH
LTHO
GCK
PIN NAME
EXT
EXT
EXT
_R
_G
_B
8x3-CHANNEL CONSTANT CURRENT LED DRIVERS
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
Ground terminal.
External resistor connected between R
for driver current setting.
R
IOUT0, 3, 6, 9, 12, 15, 18, 21.
R
IOUT1, 4, 7, 10, 13, 16, 19, 22.
R
IOUT2, 5, 8, 11, 14, 17, 20, 23.
LED driver outputs.
Serial input for grayscale PWM data and current
adjustment data.
Serial output for grayscale PWM data and current
adjustment data.
Synchronous clock input for serial data transfer. The
input data of DIN can be transferred at either the rising
edges of DCK or the falling edges of DCK depending
on the signal DCKPH.
Synchronous clock output for serial data transfer.
DCKO
When DCKPH = L, input data is shifted in by rising
edge of DCK,
When DCKPH = H, input data is shifted in by falling
edge of DCK
When DOUTPH = H, DOUT is shifted out with half
DCK cycle delay
When DOUTPH = L, DOUT is shifted out without delay
Data latch input pin.
When DCKPH=L & LTH=H or DCKPH=H & LTH=L,
internal latches become transparent and PWM counter
value will be set to FFFF(h).
When DCKPH=L & LTH=L or DCKPH=H & LTH=H,
internal latches hold data.
Data latch output pin. LTHO
Clock input for PWM operation. When DCKPH=L
(DCKPH=H), the internal PWM counter will count up
with rising (falling) edge of GCK.
EXT
EXT
EXT
_R controls outputs:
_G controls outputs:
_B controls outputs:
=
DCK
.
FUNCTION
=
LTH
EXT
and GND
Version:A.002
36,35,34,33,32,31
30,29,28,27,26,25
QFN48 / LQFP48
12,11,10,9,8,7,
18,19,42,43
pin number
6,5,4,3,2,1
16,45
21
22
23
48
37
47
38
14
15
46
39
44
DM164
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