MC141541

更新时间： 2024-11-21 04:41:03

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		/
页数	文件大小	规格书
16页	303K
描述
Enhanced Monitor On-Screen Display

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中文翻译

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数据手册

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MC141541 数据手册

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by MC141541/D

SEMICONDUCTOR TECHNICAL DATA

P SUFFIX

PLASTIC DIP

CASE 648

CMOS

The MC141541 is a high performance HCMOS device designed to interface

with a microcontroller unit to allow colored symbols or characters to be

displayed on a color monitor. The on–chip PLL allows both multi–system

operation and self–generation of system timing. It also minimizes the MCU’s

burden through its built–in 273 bytes display/control RAM. By storing a full

screen of data and control information, this device has the capability to carry out

‘screen–refresh’ without MCU supervision.

Since there is no spacing between characters, special graphics–oriented

characters can be generated by combining two or more character blocks. There

are two different resolutions that users can choose. By changing the number of

dots per horizontal line to 320 (CGA) or 480 (EGA), smaller characters with

higher resolution can be easily achieved.

Special functions such as character bordering or shadowing, multi–level

windows, double height and double width, and programmable vertical length of

character can also be incorporated. Furthermore, neither massive information

update nor extremely high data transmission rate are expected for normal on–

screen display operation, and serial protocols are implemented in lieu of any

parallel formats to achieve minimum pin count.

A special feature, character RAM fonts, is implemented in this MOSD

enhanced version (EMOSD). Users can download their own fonts and display

them at any time once the chip is powered on. There are two ways for users to

build and store fonts. One is a conventional approach to have masked ROM

fonts. A newer approach is to store the fonts in the EPROM accessed by the

MCU and then download them into the EMOSD character RAM. With this new

technique, users have more flexibility in preparing their fonts and the effective

number of fonts is greatly increased.

ORDERING INFORMATION

MC141541P

Plastic DIP

PIN ASSIGNMENT

SS(A)

VCO

)

DD(A

HFLB

FBKG

HTONE/

PWMCK

VFLB

SDA(MOSI)

SCL(SCK)

•

Two Selectable Resolutions: 320 (CGA) and 480 (EGA) Dots per Line

Fully Programmable Character Array of 10 Rows by 24 Columns

273 Bytes Direct Mapping Display RAM Architecture

Internal PLL Generates a Wide–Ranged System Clock

For High–End Monitor Application, Maximum Horizontal Frequency is

110 kHz (52.8 MHz Dot Clock at 480 Mode)

Programmable Vertical Height of Character to Meet Multi–Sync

Requirement

•

Programmable Vertical and Horizontal Positioning for Display Center

120 Characters and Graphic Symbols ROM and Eight Programmable

Character RAM

•

10 x 16 Dot Matrix Character

Character–by–Character Color Selection

A Maximum of Four Selectable Colors per Row

Double Character Height and Double Character Width

Character Bordering or Shadowing

Three Fully Programmable Background Windows with Overlapping

Capability

•

Provides a Clock Output Synchronous to the Incoming H Sync for External

PWM

•

M_BUS (IIC) Interface with Address $7A

Single Positive 5 V Supply

REV 1

2/97

TN97031200

Motorola, Inc. 1997

MOTOROLA

MC141541

12 3 4 5 6 7...16

中文翻译

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与MC141541相关器件

型号	品牌	获取价格	描述	数据表
MC141541P	MOTOROLA	获取价格	Enhanced Monitor On-Screen Display
MC141543	MOTOROLA	获取价格	Advanced Monitor On-Screen Display
MC141543P	MOTOROLA	获取价格	Advanced Monitor On-Screen Display
MC141547P2	MOTOROLA	获取价格	ON-SCREEN DISPLAY IC, PDIP16, PLASTIC, DIP-16
MC141555	MOTOROLA	获取价格	USB Hub Controller CMOS
MC141555DW1	MOTOROLA	获取价格	UNIVERSAL SERIAL BUS CONTROLLER, PDSO28, PLASTIC, SO-28
MC141555DW1R2	MOTOROLA	获取价格	USB Bus Controller, CMOS, PDSO28, PLASTIC, SO-28
MC141555P1	NXP	获取价格	IC,BUS CONTROLLER,CMOS,DIP,28PIN
MC141555P1	MOTOROLA	获取价格	USB Hub Controller CMOS
MC141556	FREESCALE	获取价格	USB Hub Controller CMOS

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