sc16461 Silan, sc16461 Datasheet - Page 4

• Manufacturer Part Number: sc16461
• Description: Led Driver Ic Of 12~11 X 6~7 Segments Display
• Manufacturer: Silan

SC16461 key matrix & key input data storage ram
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
SC16461 key matrix consists of 10 x 3 array as shown below:
Command 2: data setting commands
command, the bits 5 and 6 (b4, b5) are ignored, bit 7 (b6) is given the value of “ 1” while bit 8 (b7) is given the
value of “ 0” . Please refer to the diagram below.
significant bit. When the most significant bit of the data (b0) has been read, the least significant of the next
data (b7) is read.
Note: b6 and b7 do not care.
The data setting commands executes the data write or data read modes for 16461. The data setting
Each data entered by each key is stored as follows and read by a read command, starting from the last
When power is turned ON, bit 4 to bit 1 (b3 to b0) are given the value of “ 0” .
K1…
b0… … … b2 b3… … ..… b5 b6… … ..… ..b7
SG1/KS1
SG3/KS3
SG5/KS5
SG7/KS7
SG9/KS9
MSB
… .k3 K1 … … … K3
0
K1
K2
K3
1
Relevant
Not
-
SG1/
KS1
SG10/KS10
SG2/KS2
SG4/KS4
SG6/KS6
SG8/KS8
- b3 b2 b1 b0
SG2/
KS2
SG3/
KS3
LSB
SG4/
KS4
Address increment mode settings (display mode):
0: increment address after data has been written
1: fixes address
Data write & read mode settings:
00: write data to display mode
10: read key data
Mode settings:
0: normal operation mode
1: test mode
SG5/
KS5
X
X
X
X
X
SG6/
KS6
SG7/
KS7
Reading
sequence
SG8/
KS8
SG9/
KS9
SG10/
KS10
REV:1.0
SC16461
Page 4 of 10
2004.08.03