SC16315

Pin No.

Pin Name

Description

31~38

Seg17/Grid12

to Seg24/Grid5

High-voltage output (segment/grid). Segment or grid driving.

1 ~4

LED1 to LED4

LED output pin. CMOS output. +20mA max.

10 ~ 11

KEY1 to KEY2

Key data input. Data input to these pins is latched at the end of the display

cycle.

13, 43

Logic power pin. 5V

±10%

12, 44

Logic ground. Connect this pin to system GND.

30

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

Seg8

Seg12

Seg16

Seg20

Seg24

02Hv

DIG1

DIG2

DIG3

DIG4

DIG5

DIG6

DIG7

DIG8

DIG9

DIG10

DIG11

DIG12

b0

b3 b4

b7

XXHL

XXHU

Lower 4 bits

Higher 4 bits

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

REV:1.0

2008.12.16

Http: www.silan.com.cn

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