SC16458

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV:1.2

2004.8.31

Http: www.silan.com.cn

Page 2 of 10

Note: test condition: set display control commands=80H (display turn OFF state)

PIN CONFIGURATIONS

1

2

3

4

5

6

7

8

28

27

14

13

12

11

10

9

16

15

18

17

20

19

22

21

24

23

26

25

SC16458

PIN DESCRIPTIONS

Pin NO.

Pin name

Description

1

CLK

Clock input pin. This pin reads serial data at the rising edge.

2

STB

Serial interface strobe pin. The data input after the STB has fallen is

processed as a command. When this pin is “HIGH”, CLK is ignored.

3~5, 15, 18,

19, 24, 27

NC

No connection

6

Logic power supply

7~14, 16~17

SEG1 ~ SEG8,

SEG9~SEG10

Segment output pins (p-channel, open drain)

20~23

G4 to G1

Grid output pins (n-channel, open drain)

25

Ground

26

OSC

Oscillator input pin.

This pin requires a resistor to obtain the accurate oscillation frequency.

28

DIN

Data input pin. This pin inputs serial data at the rising edge of the shift

clock (starting from the lower bits).

Characteristics

Symbol

Test Condition

Min.

Typ.

Max.

Unit

Logic Supply Voltage

4.5

5

5.5

V

Dynamic Current (note)

--

--

5

mA

SEG1 to SEG10

-10

-14

--

mA

High-Level Output Current

SEG1 to SEG10

-20

-25

--

mA

Low-Level Output Current

100

140

--

mA

Segment High-Level Output Current

Tolerance

SEG1 to SEG10

--

--

±5

%

High-Level Input Voltage

--

--

5

V

Low-Level Input Voltage

--

0

--

V

Oscillation Frequency

Fosc

R=51k

Ω

350

500

650

kHz