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參數(shù)資料
| 型號： | W79E648 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | Fast 8051 Compatible microcontroller with a redesigned Processor |
| 中文描述： | 快速8051兼容微控制器重新設(shè)計的處理器 |
| 文件頁數(shù)： | 2/80頁 |
| 文件大小： | 407K |
| 代理商： | W79E648 |
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Preliminary W79E648
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1. GENERAL DESCRIPTION
The W79E648 is a fast 8051 compatible microcontroller with a redesigned processor core without
wasted clock and memory cycles. As a result, it executes every 8051 instruction faster than the
original 8051 for the same crystal speed. Typically, the instruction executing time of W79E648 is 1.5 to
3 times faster than that of traditional 8051, depending on the type of instruction. In general, the overall
performance is about 2.5 times better than the original for the same crystal speed. Giving the same
throughput with lower clock speed, power consumption has been improved. Consequently, the
W79E648 is a fully static CMOS design; it can also be operated at a lower crystal clock. The
W79E648 contains In-System Programmable (ISP) 128 KB bank-addressed Flash EPROM; 4KB
auxiliary Flash EPROM for loader program; on-chip 1 KB MOVX SRAM; power saving modes.
2. FEATURES
8-bit CMOS microcontroller
High speed architecture of 4 clocks/machine cycle runs up to 40 MHz
Instruction-set compatible with MCS-51
Seven
8-bit I/O Ports
One extra 4-bit I/O ports, chip select, reboot fuction
Three 16-bit Timers
7 interrupt sources with two levels of priority
On-chip oscillator and clock circuitry
One enhanced full duplex serial port
Dual 64KB In-System Programmable Flash EPROM banks (AP Flash EPROM 0 and AP Flash
EPROM 1)
4KB Auxiliary Flash EPROM for loader program (LD Flash EPROM)
256 bytes scratch-pad RAM
1 KB on-chip SRAM for MOVX instruction
Programmable Watchdog Timer
6 channels of 8 bit PWM
Software Reset
Software programmable access cycle to external RAM/peripherals
Code protection
Packages:
PLCC 68: W79E648X40PX
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相關(guān)代理商/技術(shù)參數(shù) |
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| W79E658A40FL | 制造商:Nuvoton Technology Corp 功能描述:IC MCU 8BIT 100QFP |
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| W79E802A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W79E802ADG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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