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参数资料
| 型号： | DLX2416 |
| 厂商： | Osram Opto Semiconductors GmbH |
| 英文描述： | Intelligent Display Device |
| 中文描述： | 智能显示装置 |
| 文件页数： | 1/5页 |
| 文件大小： | 213K |
| 代理商： | DLX2416 |
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
2000 Infineon Technologies Corp. Optoelectronics Division San Jose, CA
1
May 31, 2000-12
Intelligent Display also provides internal memory for the four
digits. This approach allows the user to asynchronously
address one of four digits, and load new data without regard to
the LED multiplex timing.
Figure1 is a block diagram of the DLX2416. The unit consists of
4 (5x7) LEDs and a single CMOS integrated chip. The IC chip
contains the column drivers and row drivers, 128 character
ROM, four word x7 bit Random Access Memory, oscillator for
multiplexing, multiplex counter/decoder, cursor memory,
address decoder, and miscellaneous control logic.
This application note is intended to serve as a design and appli-
cation guide for the DLX2416 alphanumeric Intelligent Displays.
The information presented covers device electrical description
and operation, considerations for general circuit design, and
interfacing the DLX2416 to microprocessors. Refer to the spe-
cific data sheet and other Infineon / OSRAM Appnotes for more
details.
Electrical & Mechanical Description
The internal electronics in these Intelligent Displays eliminates
all the traditional difficulties of using multi-digit light emitting
displays (segment decoding, drivers, and multiplexing). The
Figure 1. Block diagram–DLX2416
Rows 0 to 6
Display
Columns 0 to 19
Display
Output
Logic
CUE
Row Control Logic
& Row Drivers
Row Decoder
ROM
128x35 Bit
ASCII
Character
Decode
4480 Bits
D6
D5
D4
D3
D2
D1
D0
C
Write
Address
Decoder
RAM
Memory
Timing and Control Logic
L
Cursor Memory Bits 0 to 3
Address Lines
4x7 Bit
OSC
÷
128
Counter
÷
7
Counter
Cursor
Memory
4x1 Bit
7 Bit ASCII Code
RAM Read Logic
Column Data
WR
A0
A1
CE1
CE2
CU
BL
3 2 1 0
Applying the DLX2416
Intelligent Display
Appnote 14
Device
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