Z90212 Datasheet | Zilog.

FEATURES Device Z90211 Z90218 Z90212 Z90213 Z90219 ROM (KB) 16 (OTP) 8 12 16 32 (ext.) RAM- (Bytes) 237 237 237 237 237 I/O Lines 20 20 20 20 N/A Voltage Range 4.5V to 5.5V 4.5V to 5.5V 4.5V to 5.5V 4.5V to 5.5V 4.5V to 5.5V s s s s On-Chip Infrared (IR) Capture Registers Four Channel 3-bit Analog-to-Digital Converter Twenty General Purpose I/O Pins I2C Serial munication Port) Note: OTP and Z9021x products under development On Screen Display (OSD) Section s Z8-Based CMOS Microcontroller for Consumer Television, Cable Box, and Satellite Receiver Applications. s s s s 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 Programmable by Character Colors Fully s s 42-Pin SDIP Package Z8 Microcontroller Core at 6 MHz Mask ROM sizes Available in 8, 12 and 16 Kbytes Eleven Pulse Width Modulators ® s 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 bination with these advanced features makes the Z9021x family an ideal choice for low to midrange 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 munication port and half-tone OSD circuitry on the Z9021x family. Of course I2C munication 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...