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Pin No.
Pin Name
LC75411ES LC75411WS
VDD
39
VSS
20
TEST
16
TIM
15
CL
19
DI
18
CE
17
NC
—
LC75411ES, 75411WS
Function
42
• Power supply pin
21
• Ground pin
• Dedicated IC test pin
17
• Normally this pin is used connected to GND.
• Timer pin when there is no signal in the zero-cross
circuit.
16
Forcibly set data when there is no zero-cross signal,
from the time the data is set until the timer ends.
20
• Input pin for serial data and clock used for control
19
• Chip enable pin. Data is written to the internal latch
and the analog switches are operated when the
18
level changes from High to Low.
Data transfer is enabled when the level is High.
12
25
• No Connect pin. Leave this pin open or connect it to
V
.
41
SS
44
Equivalent circuit
VDD
VDD
VDD
No. 6928-19/33
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