MIC10941PE-50BN

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麦瑞 - MICREL		/
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MIC10941PE-50BN 数据手册

MIC10941/10939

Micrel

MIC10941/10939

V. F. Alphanumeric and Bargraph Display Controller

Summary Information*—Not Recommended for New Designs

General Description

Features

The MIC10941 and MIC10939 Alphanumeric and Bargraph

Display Controller is a two-chip MOS/LSI general purpose

display controller system designed to interface with bargraph

and segmented displays (vacuum fluorescent or LED).

• 20-character display driver cascadable to 80 characters

• Direct drive capability for vacuum-fluorescent displays

• 128 × 18 PLA provides segment decoding for ASCII

characters (all caps only) and bargraph patterns

• Serial or parallel data input for 8-bit display and control

characters

• Brightness, refresh rate, and display mode controls

• Separate cursor driver output

• 40-pin DIP or 44-pin PLCC (MIC10939)

• 24-pin DIP package (MIC10941)

The two-chip set will drive displays with up to 16 segments

(plus decimal point and comma tail) and up to 20 grids

(characters) plus a cursor. The chips can be cascaded to

drive larger displays of 80 characters. Segment decoding for

ASCII characters and bargraph patterns is accomplished

through an internal PLA.

Ordering Information

Micrel has received the rights from Rockwell International to

manufacture and market this product and reproduce the

specifications, including references to Rockwell.

Part Number

Temperature Range

0°C to +70°C

Package

MIC10941P-50

MIC10941PE-50

MIC10939J-50

MIC10939P-50

MIC10939PE-50

24-pin P-DIP

44-pin PLCC

40-pin P-DIP

–40°C to +85°C

0°C to +70°C

–40°C to +85°C

Block Diagram

20-CHARACTER 16-SEGMENT ALPHANUMERIC OR BARGRAPH DISPLAY

TAIL

PNT

SG01-SG16

CURSOR

STR00–STR19

SEGMENT DRIVERS AND LATCHES

GRID DRIVERS

INVERSION

LOGIC

LEVEL

DETECT

LOGIC

SCLK-DIS

128 × 18 PLA

CONTROL

LOGIC

20 × 8

RAM

8-BIT SHIFT

LEVEL

DETECT

LOGIC

DATA-LOAD

MIC10941

MIC10939

HOST

* Contact Micrel for more information.

8-24

August 1998

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