Silan
Semiconductors
PIN DESCRIPTION
Pin Name
I/O
INPUT: 200kΩ pull low to V
SS
.
SC84510
Description
When OPT is connected to V
DD
, SC84510 will enter test mode. In test mode, L will
be the output of X1, while M will be the output of X2. Toggling R key can change
OPT
I/O
these output to be Y1, Y2 or Z1, Z2 respectively.
OUTPUT: 2kHz Z-axis LED-driving source.
“1” = V
DD
, “0” = floating
High duty is about 60µs.
OSC OUT
OSCR
CLK
DATA
R
M
L
X1
X2
I
Y1
Y2
Z-axis input.
Z1
I
Z2
Photo mode: Three steps dynamic input impedance. Current comparator input.
Key mode: 200kΩ resistor pull low. 7 levels increased by “M” key.
Voltage mode: 200kΩ resistor pull low. 7 levels voltage comparator.
Mechanical mode: 13.2kΩ resistor pull low.
V
SS
V
DD
Negative power.
Power line.
Three step dynamic input impedance.
Use current comparator to measure photo-couples “ON”, or “OFF”.
I
Three key-switches inputs.
200kΩ resistor pull low.
O
I
I/O
I/O
Connect to 8042 auxiliary port CLK line.
Connect to 8042 auxiliary port DATA line.
RC mode oscillation with 50kΩ resistor.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
5
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
