SC16315
Pin No.
31~38
1 ~4
Pin Name
Seg17/Grid12
to Seg24/Grid5
LED1 to LED4
Description
High-voltage output (segment/grid). Segment or grid driving.
LED output pin. CMOS output. +20mA max.
Key data input. Data input to these pins is latched at the end of the display
10 ~ 11
KEY1 to KEY2
cycle.
13, 43
12, 44
30
V
DD
V
SS
V
EE
Logic power pin. 5V±10%
Logic ground. Connect this pin to system GND.
Pull-down level. V -35V max.
DD
FUNCTIONAL DESCRIPTION
1. DISPLAY RAM ADDRESS AND DISPLAY MODE
The display RAM stores the data transmitted from an external device to the SC16315 through the serial interface,
and is assigned addresses as follows, in 8 bits unit:
Seg1 Seg4
00HL
Seg8
00HU
Seg12
01HL
Seg16
01HU
Seg20
02Hv
Seg24
02HU
DIG1
DIG2
DIG3
DIG4
DIG5
DIG6
DIG7
DIG8
DIG9
DIG10
DIG11
DIG12
03HL
03HU
06HU
09HU
0CHU
0FHU
12HU
15HU
18HU
1BHU
1EHU
21HU
04HL
07HL
0AHL
0DHL
10HL
13HL
16HL
19HL
1CHL
1FHL
22HL
04HU
07HU
0AHU
0DHU
10HU
13HU
16HU
19HU
1CHU
1FHU
22HU
05HL
08HL
0BHL
0EHL
11HL
14HL
17HL
1AHL
1DHL
20HL
23HL
05HU
08HU
0BHU
0EHU
11HU
14HU
17HU
1AHU
1DHU
20HU
23HU
06HL
09HL
0CHL
0FHL
12HL
15HL
18HL
1BHL
1EHL
21HL
b0
b3 b4
XXHL XXHU
Lower 4 bits Higher 4 bits
b7
2. KEY MATRIX AND KEY-INPUT DATA STORAGE RAM
The key matrix is made up of a 16 x 2 matrix, as shown below.
KEY1
KEY2
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0
2008.12.16
Page 5 of 11
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
