General Description

The Z90233/Z90234 and Z90231 are the ROM and OTP versions of the eZVision 200 television controller with OSD. Based on ZiLOG’s powerful Z8 architecture, the Z90233/Z90234 and Z90231 contain 24 KB of program memory.

On-Screen Display (OSD)

Features

• Displays of up to 10 rows by 24 columns with

256 characters

• Provides character cell resolution of 14 pixels

by 18 scan lines

• Offers variable inter-row spacing from 0–15

horizontal scan lines

• Uses color palette table to program foreground

and background of character

Microcontroller Features

• Incorporates Z8® MCU core at 6 MHz

• Z90233 and Z90234 have 16K and 24K

masked ROM, respectively

• 236 bytes of system RAM

• Ten 6-bit pulse width modulators

• One 14-bit pulse width modulator

• On-chip infrared (IR) capture registers

• Four channels of 4-bit analog-to-digital converter

• 27 general-purpose I/O pins

• Provides I2C master serial communication port

• 42-pin SDIP and 44-pin PQFP packages

• Can be emulated with 124-pin PGA package

(Z90239)

Z90251属于集成电路（IC） > 应用特定微控制器。齐洛格公司制造生产的Z90251应用特定微控制器应用特定型微控制器是将处理单元（微处理器）、存储器（EEPROM、EPROM、闪存、SRAM、ROM、RAM 等）和一些外设（时钟、转换器、端口、定时器、UART 等）集成到单个器件中的半导体器件。应用包括音频记录器/回放、身份验证、汽车、电池监测器、BLDC 控制器、蓝牙、嵌入式系统安全性、GPS、联网和 USB 等不一而足。