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Display Controller. MIC10942 Datasheet |
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MIC10939/10942/10943
Micrel
MIC10939/10942/10943
V. F. Dot Matrix Display Controller
Summary Information*—Not Recommended for New Designs
General Description
The MIC10939, MIC10942, and MIC10943 Dot Matrix Dis-
play Controller is a three-chip MOS/LSI general purpose
display controller system designed to interface to dot matrix
displays (vacuum fluorescent or LED).
The three-chip set will drive displays with up to 46 anodes
(dots) and up to 20 grids (characters) plus a cursor. The chips
can be cascaded to drive larger displays of up to 80 charac-
ters.
An internal PLA-type decoder provides character decoding
and dot pattern generation for the full 96-character ASCII set
and an additional 32 special characters.
Micrel has received the rights from Rockwell International to
manufacture and market this product and reproduce the
specifications, including references to Rockwell.
Block Diagram
Features
• 20-character display driver cascadable to 80 characters
• Standard 5 × 12 character font
• Separate cursor driver output
• Two 128 × 23 PLAs provides segment decoding for full
96-character ASCII set, plus 32 special characters
• Serial or parallel data input for 8-bit display mode
controls
• Brightness, refresh rate, and display mode controls
• 40-pin DIP or 44-pin PLCC (MIC10939)
• 28-pin DIP (MIC10942 and MIC10943)
Ordering Information
Part Number
MIC10939J-50
MIC10939P-50
MIC10939PE-50
MIC10942P-50
MIC10942PE-50
MIC10943P-50
MIC10943PE-50
Temperature Range
0°C to +70°C
0°C to +70°C
–40°C to +85°C
0°C to +70°C
–40°C to +85°C
0°C to +70°C
–40°C to +85°C
Package
44-Pin PLCC
40-pin P-DIP
40-pin P-DIP
40-pin P-DIP
40-pin P-DIP
40-pin P-DIP
40-pin P-DIP
20-CHARACTER 5 × 12 DOT MATRIX DISPLAY
23 SG01-SG23
23 SG01-SG23
ANODE DRIVERS AND LATCHES
ANODE DRIVERS AND LATCHES
8
INVERSION
LOGIC
128 × 35 PLA
8-BIT SHIFT
REGISTER
MIC10942
LEVEL
DETECT
LEVEL
DETECT
DATA-
LOAD
LEVEL
DETECT
SCLK
-DIS
LEVEL
DETECT
INVERSION
LOGIC
128 × 23 PLA
8-BIT SHIFT
REGISTER
MIC10943
August 1998
20 × 8
RAM
MIC10939
CONTROL
LOGIC
GRID
DRIVERS
CURSOR
20 STR00–STR19
HOST
8-23
* Contact Micrel for more information.
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