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Z90203 PDF预览

Z90203

更新时间: 2024-11-03 22:07:55
品牌 Logo 应用领域
ZILOG 电视
页数 文件大小 规格书
2页 61K
描述
TELEVISION CONTROLLERS

Z90203 数据手册

 浏览型号Z90203的Datasheet PDF文件第2页 
Z90209/203/202  
TELEVISION CONTROLLERS  
FEATURES  
ROM  
RAM*  
(Kbyte)  
236  
236  
236  
Speed Package  
Part  
Z90209  
Z90203  
Z90202  
(KB)  
16  
16  
8
(MHz)  
Type  
On-Screen Display (OSD) Logic Circuits  
6
6
6
124-Pin PGA  
42-Pin SDIP  
42-Pin SDIP  
One 14-Bit and One 108-Bit Pulse Width Modulator  
(PWM) Circuits  
*General-Purpose  
20 Input/Output Lines  
4.5V to 5.5V Operating Range  
Program Memory, Video RAM, and Register File  
0°C to +70°C Temperature Range  
Low-Power Consumption  
Address Spaces  
Two On-Chip Counter/Timers  
GENERAL DESCRIPTION  
The Z9020X Family of Digital Television Controllers are  
cost-effective members of the Z8® single-chip  
microcontroller family. The devices provides an ideal  
performance and reliability solution for consumer and  
industrial television applications.  
Threebasicaddressspaces, TheProgramMemory, Video  
RAM, and Register File, support a wide range of memory  
configurations.  
For applications demanding powerful I/O capabilities, the  
Z9020X's dedicated input and output lines are grouped  
into three ports, and are configurable under software  
controltoprovidetiming, statussignals, parallelI/Oandan  
address/data bus for interfacing to external memory.  
TheZ90209istheROMlessIn-CircuitEmulation(ICE)Chip  
version of the Z90200 Digital Television Controller Family  
used in emulators and development boards.  
The device features an 8-bit internal data path controlled  
by a Z8 microcontroller, On-Screen Display (OSD) logic  
circuits, and Pulse Width Modulators (PWM). On-chip  
peripherals include two register mapped I/O ports (Ports 2  
and Port 3), interrupt control logic (one software, two  
external and three internal interrupts) and a standby mode  
recovery input port (Port 3, pin P30).  
To unburden the program from coping with the real-time  
problemssuchascounting/timinganddatacommunication,  
the Z9020X offers two on-chip counter/timers with a large  
number of user selectable modes.  
Notes:  
All Signals with a preceding front slash, "/", are active Low, e.g.:  
B//W (WORD is active Low); /B/W (BYTE is active Low, only).  
The OSD control circuits support ten rows by 24 columns  
ofcharacters.Thecharactercolorisspecifiedbycharacter.  
The OSD inter-row spacing is variable and can be  
programmed from 0 to 15 horizontal scan lines. The OSD  
iscapableofdisplayinghighresolution(14x18dotpattern)  
characters.  
Power connections follow conventional descriptions below:  
Connection  
Circuit  
Device  
Power  
Ground  
VCC  
GND  
VDD  
VSS  
A 14-bit PWM port provides enough voltage resolution for  
a voltage synthesizer tuning system. Ten 8-bit PWM ports  
are used for controlling audio signal levels to vary picture  
levels.  
245  

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