參數(shù)資料
型號: ICM7243
廠商: Intersil Corporation
英文描述: 8-Character, Microprocessor- Compatible, LED Display Decoder Driver
中文描述: 8個字符,微處理器兼容,LED顯示驅(qū)動器解碼器
文件頁數(shù): 1/12頁
文件大?。?/td> 109K
代理商: ICM7243
9-21
August 1997
ICM7243
8-Character, Microprocessor-
Compatible, LED Display Decoder Driver
Features
14-Segment and 16-Segment Fonts with Decimal Point
Mask Programmable for Other Font-Sets Up to 64
Characters
Microprocessor Compatible
Directly Drives LED Common Cathode Displays
Cascadable Without Additional Hardware
Standby Feature Turns Display Off; Puts Chip in Low
Power Mode
Sequential Entry or Random Entry of Data Into
Display
Single +5V Operation
Character and Segment Drivers, All MUX Scan
Circuitry, 8 x 6 Static Memory and 64-Character ASCll
Font Generator Included On-Chip
Description
The ICM7243 is an 8-character, alphanumeric display driver
and controller which provides all the circuitry required to
interface a microprocessor or digital system to a 14-segment
or 16-segment display. It is primarily intended for use in
microprocessor systems, where it minimizes hardware and
software overhead. Incorporated on-chip are a 64-character
ASClI decoder, 8 x 6 memory, high power character and
segment drivers, and the multiplex scan circuitry.
6-bit ASCll data to be displayed is written into the memory
directly from the microprocessor data bus. Data location
depends upon the selection of either
(MODE = 1) or
Random
access mode (MODE = 0). In the
Sequential Access
mode the first entry is stored in the
lowest location and displayed in the “l(fā)eft-most” character
position. Each subsequent entry is automatically stored in
the next higher location and displayed to the immediate
“right” of the previous entry. A DISPlay FULL signal is pro-
vided after 8 entries; this signal can be used for cascading
devices together. A CLeaR pin is provided to clear the mem-
ory and reset the location counter. The
Random Access
mode allows the processor to select the memory address
and display digit for each input word.
Sequential
The character multiplex scan runs whenever data is not
being entered. It scans the memory and CHARacter drivers,
and ensures that the decoding from memory to display is
done in the proper sequence. Intercharacter blanking is
provided to avoid display ghosting.
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
ICM7243AIJL
-25
o
C to 85
40 Ld CERPDIP
F40.6
ICM7243AIPL
-25
o
C to 85
40 Ld PDIP
E40.6
ICM7243BIJL
-25
o
C to 85
40 Ld CERPDIP
F40.6
ICM7243BlPL
-25 to 85
40 Ld PDIP
E40.6
File Number
3162.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
Intersil Corporation 1999
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