Z90218 Просмотр технического описания (PDF) - Zilog

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Z90218

Z8 digital television controller. 12 Kbytes ROM, 237 bytes RAM, 20 I/O, 6 MHz

Zilog 

PRELIMINARY CUSTOMER PROCUREMENT SPECIFICATION

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Z90219/213/212/211/218

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Z8® DIGITAL TELEVISION

CONTROLLERS

FEATURES

Device

ROM

(KB)

RAM* I/O

(Bytes) Lines

Voltage

Range

Z90211 16 (OTP) 237

Z90218

8

237

Z90212

12

237

20 4.5V to 5.5V

20 4.5V to 5.5V

20 4.5V to 5.5V

Z90213

16

237

20 4.5V to 5.5V

Z90219 32 (ext.) 237

N/A 4.5V to 5.5V

Note: OTP and Z9021x products under development

Z8-Based CMOS Microcontroller for Consumer

Television, Cable Box, and Satellite Receiver

Applications.

s 42-Pin SDIP Package

s Z8® Microcontroller Core at 6 MHz

s Mask ROM sizes Available in 8, 12 and 16 Kbytes

s Eleven Pulse Width Modulators

s On-Chip Infrared (IR) Capture Registers

s Four Channel 3-bit Analog-to-Digital Converter

s Twenty General Purpose I/O Pins

s I2C Serial Communication Port)

On Screen Display (OSD) Section

s Supports Displays up to 10 rows by 24 Columns with

256 Characters

s Character Cell Resolution of 14 Pixels by 18 Scan lines

s Variable Inter-row Spacing from 0-15 Horizontal Scan

Lines

s Foreground and Background Colors Fully

Programmable by Character

GENERAL DESCRIPTION

The Z9021x Digital Television Controller (DTC) family is

Zilog’s latest and most powerful Z8-based DTC product of-

fering. These parts feature larger system RAM and ROM

options, together with a host of new features including a

new color palette system, flexible inter-row spacing, higher

character cell resolution, background mesh effect, dedicat-

ed I.R. capture registers, on-chip Analog-to-Digital conver-

sion, and a hardware Master mode I2C interface. The fa-

miliar Z8 core in combination with these advanced features

makes the Z9021x family an ideal choice for low to mid-

range televisions in both PAL and NTSC markets.

The Z9021x family consists of two basic device types;

Z9020x and Z9021x. The only difference between the two

types is the presence of a hardware I2C serial communica-

tion port and half-tone OSD circuitry on the Z9021x family.

Of course I2C communication is supported on the Z9020x

family in software with the dedication of any two I/O pins to

the task.

The Z9021x family takes full advantage of the Z8’s ex-

panded register file space to offer greater flexibility in On

Screen Display creation.

CP96TEL2400

PRELIMINARY

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