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

Appnote 17

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

2

May 31, 2000-12

Packaging

Packaging consists of a transfer molded nylon lens which also

serves as an “encapsulation shell” since it covers five of the six

“faces.” The assembled and tested substrate (“PTF” multi-

layer), is placed within the shell and the entire assembly is then

filled with a water clear IC grade epoxy.

This yields a very rugged part, which is quite impervious to

moisture, shock and vibration. Although not “hermetic,” the

device will easily withstand total immersion in water/detergent

solutions.

Figure 2. Top view

Table 1. Pin outs

Pin

Function

Pin

Function

1

CE1 Chip Enable

10

GND

2

CE2 Chip Enable

11

D0 Data Input

3

CLR Clear

12

D1 Data Input

4

CUE Cursor Enable

13

D2 Data Input

5CU Cursor Select

14

D3 Data Input

6WR Write

15

D6 Data Input

7

A1 Digit Select

16

D5 Data Input

8

A0 Digit Select

17

D4 Data Input

18

BL Display Blank

digit 3 digit 2

digit 1 digit 0

Table 2. Electrical inputs to the 3416

Positive supply +5 volts

GND

Ground

D0-D6

Data Lines

The seven data input lines are designed to

accept the first 64 ASCII characters. See Fig-

ure 3 for DL3416 character set (The DL3416

interprets all undefined codes as a blank).

See Figure 3 for DLX3416 character set.

A0, A1

Address Lines

The address determines the digit position to

which the data will be written. Address order

is right to left for positive-true logic.

WR

Write (Active Low)

Data and address to be loaded must be

present and stable before and after the trailing

edge of write. (See DL3416, DLX3416 data

sheets for timing information).

CE1, CE2

Chip Enable (Active High)

CE3, CE4

Chip Enable (Active Low)

Determines which device in an array will actu-

ally accept data. When either or both

chip enable is in the high state, all inputs

are inhibited.

CLR

Clear (Active Low)

The data RAM and cursor RAM of the DL

3416 will be cleared when held low for 15 mS.

DLX3416.

CUE

Cursor Enable

Activates Cursor function. Cursor will not be

displayed regardless of cursor memory con-

tents when cue is Low.

CU

Cursor Select (Active Low)

This input must be held high to store data in

data memory and low to store data into the

cursor memory.

BL

Display Blank (Active Low)

Blanking the entire display may be accom-

be used for flashing or dimming.