DLO4135 Datasheet, PDF (1/4 Pages) Siemens Semiconductor Group – 43/68 Single Character DLO4135/7 5x7 Dot Matrix Intelligent Display

The DLO4135/DLG4137
5 x 7 Dot Matrix Intelligent Display^®
Appnote 28
This application note is intended to serve as a design and appli-
cation guide for users of the DLO4135 and DLG4137 OSRAM
Intelligent Displays. This appnote covers device electrical
description, operation, general circuit design considerations,
and interfacing to microprocessors.
Electrical Description
The DLO4135/DLG4137 Intelligent Alphanumeric 5x7 Dot
Matrix Display contains memory, character generator, multi-
plexing circuits, and drivers built into a single package.
Figure 1 is a block diagram of DLO4135/DLG4137. The unit
consists of 35 LED die arranged in a 5x7 pattern and a single
CMOS integrated circuit chip. The IC chip contains the column
drivers, row drivers, 128 character generator ROM, memory,
multiplex and blanking circuitry.
Figure 1. DLO4135/DLG4137 block diagram
D0
D1
D2
D3
Character ROW
ROM
Driver
D4
D5
D6
WR
CE
Multiplex
Circuitry
Column
Driver
BL0 BL1 LT
Thirty-five dots form a 0.30 x 0.43 inch overall character size in
a.500 x 1.00 inch dual-in-line package. The ±50 degree wide
viewing angle complements the display and is the ideal display
for industrial control applications. Display construction is filled
reflector type with the integrated circuit in the back also filled
with IC-grade epoxy. This results in a very rugged part which is
resistant to moisture, shock and vibration.
Figure 2. Physical dimensions in inches (mm)
Device marking
begins over pin 1
.500 max.
.14 min. _.310
(3.56) _(7.87)
.100
(2.54)
(12.7)
.30
(7.62)
.100 (2.54)
.235
(5.97)
0.18 ± .02
(4.57) (.51)
.43
(10.92)
.043
(1.09)
.100 (2.54) typ.
EIA date
code
1.00 max.
(25.4)
Luminous
intensity code
.310
(7.87)
.065 typ.
(.165)
DLO4135 Z
.100
(2.54)
.300
(7.62)
.012
(.30)
Table 1. DLO4135/DLG4137 pin functions
Pin Function
Pin
Function
1
LT Lamp Test
9
D0 data LSB
2
WR Write
10
D1 data
3
BL1 Brightness
11
D2 data
4
BL0 Brightness
12
D3 data
5
No Pin
13
D4 data
6
No Pin
14
D5 data
7
CE Chip Enable
15
D6 data MSB
8
GND
16
+V_CC
 2000 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
OSRAM Opto Semiconductors GmbH & Co. OHG • Regensburg, Germany
www.osram-os.com • [phone]
1
May 31, 2000-13