Datasheet > DLO4135

DLO4135

更新时间： 2024-02-14 10:10:13

品牌	Logo	应用领域
欧司朗 - OSRAM		/
页数	文件大小	规格书
4页	253K
描述
5 x 7 Dot Matrix Intelligent Display

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DLO4135 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
Reach Compliance Code：	unknown	HTS代码：	8541.40.20.00
风险等级：	5.88	Is Samacsys：	N
其他特性：	CMOS COMPATIBLE, WITH MEMORY/MULTIPLEXER	颜色：	HIGH EFFICIENCY RED
颜色@波长：	Orange	配置：	COMPLEX
显示高度：	10.9 mm	最大正向电压：	5.5 V
JESD-609代码：	e0	字符数：	1
功能数量：	1	最高工作温度：	85 °C
最低工作温度：	-40 °C	光电设备类型：	SMART/NORMAL 5 X 7 DOT MATRIX LED DISPLAY
峰值波长：	640 nm	子类别：	LED Displays
端子面层：	Tin/Lead (Sn/Pb)	Base Number Matches：	1

DLO4135 数据手册

If small wire cables are used, good engineering practice is to

calculate the wire resistance of the ground and the +5 volt

wires. More than 0.2 volt drop (at 100 ma per digit) should be

avoided, since this loss is in addition to any inaccuracies or load

regulation of the power supply.

Subroutine to Load an 8-digit Display using the DLO4135/

DLG4137

; DATA IN RAM 10H-17H

(MSD-LSD)

INIT

ORL P1,#0FFH

ORL P2,#00H

MOV R1,#OFH

; PORT 1 ALL HIGH (WRITE)

; PORT 2 ALL LOW (DATA)

; RAM ADDRESS—1

The 5 volt power supply for the DLO4135/DLG4137 should be

the same one supplying the V to all logic devices. If a separate

MOV R2,#0FEH ; WRITE PULSE

power supply must be used, then local buffers should be used

on all the inputs. These buffers should be powered from the dis-

play power supply. This precaution is to avoid line transients or

MOV R3,#08H

START: INC R1

DATA: MOV A,@R1

OUTL P2,A

; COUNTER

; INCREMENT RAM POINTER

; FETCH DATA FROM RAM

; LOAD PORT 2

any logic signals to be higher than V during power up.

MOV A,R2

; RECALL WRITE

; SHIFT A TO NEXT WRITE

; SAVE WRITE

Figure 5. Block diagram of the Intel 8031 controller

D Ø

D 7

MOV R2,A

WRITE: OUTL P1,A

; SEND WRITE PULSE

; WAIT

MOV A,#OFFH

OUTL P1,A

DJNZ R3,START

RET

; RESET WRITE PULSE

; LOAD COMPLETE?

; RETURN TO MAIN PROGRAM

BUFFER

P3.0

P3.1

P3.2

P3.6

Figure 7. Block diagram for 8-digit DLO4135/DLG4137

PØ

8031

PSEN

Eight DLX413X

ALE

8080

Data

A0-A7

DECODER

LATCH

I/OW

8085

System

EPROM

27xx

Address

Interfacing

For an eight digit display using the DLO4135/DLG4137, inter-

facing to a single chip microprocessor such as the 8748, is easy

and straight forward. One approach may be to dedicate one

port for the seven data signals and another 8-bit port for the

write signals. The schematic is shown in Figure 6.

Routine for an 8-Digit Display using the DLO4135/DLG4137

and 8085 or 8080 Microprocessor

; DATA TO BE DISPLAYED IS IN

; A0 (LSD) THRU A7 (MSD)

;

; DISPLAY ADDRESS C00X

I/O or Memory Mapped System

; LSD IS RIGHT MOST DIGIT

;

For a memory mapped system using a processor such as the

8080 or 8085, the interfacing is also straight-forward. Each dis-

play is treated as a memory location with its own address, like

another I/O or RAM location. See Figure 7.

; DOES NOT SAVE REG A,B,H,L,D,E

;

; DATA ADDRESS LOCATION

; DISPLAY ADDRESS

LOCATION

DADD EQU 0A000H

DPAD EQU 0C000H

Figure 6. DLO4135/DLG4137 with 8748

LEN

EQU 08H

100H

; DISPLAY LENGTH

;

8748

ORG

;

6 5 4 3 2 1 0

DISP: LXI

LXI

H,DADD

D,DPAD

B,LEN

; LOAD DATA ADDRESS

; LOAD DISPLAY ADDRESS

; LOAD DISPLAY LENGTH

; GET DATA

; XCHG H/L & D/E

; LOAD DISPLAY FROM REG A

; RESTORE H/L & D/E

MVI

DLO 4135

DLG 4137

DISP1: MOV A,M

XCHG

MOV M,A

XCHG

INX

DCR

JNZ

RET

; INCREMENT DISPLAY ADDRESS

; INCREMENT DATA ADDRESS

; DECREMENT LENGTH COUNTER

; END OF DISPLAY?

DISP1

; RETURN TO MAIN PROGRAM

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 • +49-941-202-7178

Appnote 28

May 31, 2000-13

1 234

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