GENERAL DESCRIPTION
The Z9023X 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 conver sion, and a hardware Master mode I2C interface.

Z8-Based CMOS Microcontroller for Consumer Television, Cable Box, and Satellite Receiver Applications
42-Pin SDIP Package except Z90239 (124 PGA)
Z8® MCU Core at 6 MHz
Mask ROM sizes Available in 16 and 24KB
Ten 6-bit Pulse Width Modulators
One 14-bit Pulse Width Modulator
On-Chip Infrared (IR) Capture Registers
Four Channel 4-bit Analog-to-Digital Converter
Twenty Seven General Purpose I/O Pins
I2C Master 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