Micrel MIC10939, MIC10942, v10943 User Manual

MIC10939/10942/10943 Micrel

查询MIC10939供应商

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 Dis­play 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 charac­ters.

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 Temperature Range Package

MIC10939J-50 0°C to +70°C 44-Pin PLCC
MIC10939P-50 0°C to +70°C 40-pin P-DIP
MIC10939PE-50 –40°C to +85°C 40-pin P-DIP
MIC10942P-50 0°C to +70°C 40-pin P-DIP
MIC10942PE-50 –40°C to +85°C 40-pin P-DIP
MIC10943P-50 0°C to +70°C 40-pin P-DIP
MIC10943PE-50 –40°C to +85°C 40-pin P-DIP

MIC10942

20-CHARACTER 5 × 12 DOT MATRIX DISPLAY

SG01-SG23

ANODE DRIVERS AND LATCHES

INVERSION

LOGIC

LEVEL

DETECT

128 × 35 PLA

8-BIT SHIFT

REGISTER

LEVEL

DETECT

20 × 8

RAM

MIC10939

DATA-

LOAD

SCLK

-DIS

CONTROL

LOGIC

SG01-SG23

2323

ANODE DRIVERS AND LATCHES

INVERSION

LEVEL

DETECT

128 × 23 PLA

LEVEL

DETECT

GRID

DRIVERS

8-BIT SHIFT

LOGIC

REGISTER

CURSOR

STR00–STR19

20

8

MIC10943

HOST

August 1998 8-23

* Contact Micrel for more information.