Ultra-High-Speed Microcontroller

GENERAL DESCRIPTION The DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typic

文件：485.22 Kbytes 页数：47 Pages

Maxim

美信

Ultra-High-Speed Microcontroller

GENERAL DESCRIPTION The DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typic

文件：539.93 Kbytes 页数：59 Pages

Dallas

Ultra-High-Speed Microcontroller

文件：669.69 Kbytes 页数：58 Pages

Maxim

美信

超高速微控制器

DS89C420是Maxim超高速闪存微控制器产品线的第一款产品。该器件采用重新设计的处理器内核，在相同晶振速率下，执行每个8051指令(取决于指令类型)要比原先快12倍。典型应用中，在使用相同代码和晶振时速率可提高10倍。在33MHz的最快晶振速率下，指令速率可达33兆指令每秒(MIPS)。\n DS89C420现在已不再供货。现在采用DS89C430替代该产品，除了DS89C430可提供在应用编程特性外，两个基本相同，价格也基本持平。对于DS89C420感兴趣的用户，请参照上面表格所示的信息订购DS89C430。 \n• 兼容80C52 \n• 兼容8051引脚和指令集 \n• 四个双向I/O端口 \n• 三个16位定时计数器 \n• 256字节寄存器RAM \n• 片内存储器 \n• 16kB闪存 \n• 通过串口在系统编程 \n• 用MOVX访问的1kB SRAM \n• ROMSIZE特性 \n• 从0至16k选择内部程序存储器空间 \n• 容许访问整个外部存储器映像 \n• 通过软件动态调整 \n• 高速架构 \n• 每机器周期1个时钟 \n• 直流至33MHz工作 \n• 30ns单周期指令 \n• 可变长MOVX支持快速/慢速外设 \n• 双数据指针可自动递增/递减和切换 \n• 支持四种页;

ADI

亚德诺

Ultra-High-Speed Microcontroller

GENERAL DESCRIPTION The DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typic

文件：485.22 Kbytes 页数：47 Pages

Maxim

美信

Ultra-High-Speed Microcontroller

GENERAL DESCRIPTION The DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typic

文件：485.22 Kbytes 页数：47 Pages

Maxim

美信

Ultra-High-Speed Microcontroller

GENERAL DESCRIPTION The DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typic

文件：539.93 Kbytes 页数：59 Pages

Dallas

Ultra-High-Speed Microcontroller

GENERAL DESCRIPTION The DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typic

文件：485.22 Kbytes 页数：47 Pages

Maxim

美信

Ultra-High-Speed Microcontroller

GENERAL DESCRIPTION The DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typic

文件：485.22 Kbytes 页数：47 Pages

Maxim

美信

Ultra-High-Speed Microcontroller

GENERAL DESCRIPTION The DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typic

文件：485.22 Kbytes 页数：47 Pages

Maxim

美信