GENERAL DESCRIPTION
The Z9021x Digital Television Controller (DTC) family is Zilog’s latest and most powerful Z8-based DTC product offering. 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, dedicated I.R. capture registers, on-chip Analog-to-Digital conversion, and a hardware Master mode I2C interface. The familiar Z8 core in combination with these advanced features makes the Z9021x family an ideal choice for low to midrange televisions in both PAL and NTSC markets.

FEATURES
■ 42-Pin SDIP Package
■ Z8® Microcontroller Core at 6 MHz
■ Mask ROM sizes Available in 8, 12 and 16 Kbytes
■ Eleven Pulse Width Modulators
■ On-Chip Infrared (IR) Capture Registers
■ Four Channel 3-bit Analog-to-Digital Converter
■ Twenty General Purpose I/O Pins
■ I2C Serial Communication Port)

On Screen Display (OSD) Section
■ Supports Displays up to 10 rows by 24 Columns with 256 Characters
■ Character Cell Resolution of 14 Pixels by 18 Scan lines
■ Variable Inter-row Spacing from 0-15 Horizontal Scan Lines
■ Foreground and Background Colors Fully Programmable by Character