 2000 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA

HDSP2110S/1S/2S/3S/4S/5S

www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)

OSRAM Opto Semiconductors GmbH & Co. OHG • Regensburg, Germany

www.osram-os.com • +49-941-202-7178

6

March 24, 2000-13

Figure 5. Top View

Pin Assignment

Pin

Function

Definition

1

RST

Used to initialize a display and

sychronize blinking for multiple

displays

2FL

Low input accesses the Flash RAM

3

A0

Address input LSB

4

A1

Address input

5

A2

Address input MSB

6

A3

Mode selector

7

Optional connection to positive

power supply input.

8

9

10

A4

Mode Selector

11

CLKSEL

Selects internal/high clock source

28

Pins

15

1

Pins

14

Digit

0

1

2

3

4

5

6

7

Figure 6. Character Set

ASCII

CODE

D0

D1

D2

D3

L

L

L

L

0

H

L

L

L

1

L

H

L

L

2

H

H

L

L

3

L

L

H

L

4

H

L

H

L

5

L

H

H

L

6

H

H

H

L

7

L

L

L

H

8

H

L

L

H

9

L

H

L

H

A

H

H

L

H

B

L

L

H

H

C

H

L

H

H

D

L

H

H

H

E

H

H

H

H

F

L

L

L

L

H

H

H

H

X

L

L

L

L

L

L

L

L

H

L

L

H

H

L

L

H

H

X

L

H

L

H

L

H

L

H

X

0

1

2

3

4

5

6

7

8

D6

D7

D5 D4 HEX

UDC

0

UDC

1

UDC

2

UDC

3

UDC

4

UDC

5

UDC

6

UDC

7

UDC

8

UDC

9

UDC

10

UDC

11

UDC

12

UDC

13

UDC

14

UDC

15

Notes:

1. Upon power up, the device will

initialize in a random state.

2. X=don’t care.

Pin Assignment (continued)

Pin

Function

Definition

12

CLK I/O

Outputs master clock or inputs

external clock

13

WR

A low will write data into the display

if CE is low

14

Positive power supply input

15

GND supply

Analog Ground for LED drivers

16

GND logic

Digital Ground for internal drivers

17

CE

Enables access to the display

18

RD

A low will read data from the display if

CE is low. If read from display is not

19

D0

Data input LSB

20

D1

Data input

21

No pin

—

22

No pin

—

23

D2

Data input

24

D3

Data input

25

D4

Data input

26

D5

Data input

27

D6

Data input

28

D7

Data input MSB, selects ROM,

page 1 or 2