Datasheet > 141540

141540

更新时间： 2022-12-04 16:28:08

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		显示器
页数	文件大小	规格书
12页	190K
描述
Monitor On-Screen Display CMOS

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141540 数据手册

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by MC141540/D

SEMICONDUCTOR TECHNICAL DATA

CMOS

P SUFFIX

PLASTIC DIP

CASE 648

The MC141540 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 a capability to carry out

‘screen–refresh’ without MCU supervision.

ORDERING INFORMATION

MC141540P4 Plastic DIP

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

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

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.

PIN ASSIGNMENT

SS(A)

VCO

)

DD(A

HFLB

•

Fixed Resolution: 320 (CGA) 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

100 kHz (32 MHz Dot Clock)

FBKG

HTONE

VFLB

SDA(MOSI)

SCL(SCK)

•

Programmable Vertical Height of Character to Meet Multi–Sync

Requirement

•

Programmable Vertical and Horizontal Positioning for Display Center

128 Characters and Graphic Symbols ROM

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

•

Single Positive 5 V Supply

MC141540P4 is a Replacement for XC141540P with Two Symbols Added

in ROM Addresses ‘5C’ and ‘5E’

REV 1

2/97

TN97031200

Motorola, Inc. 1997

MOTOROLA

MC141540

12 3 4 5 6 7...12

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