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參數(shù)資料
| 型號： | W77E468 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8 BIT MICROCONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件頁數(shù)： | 2/84頁 |
| 文件大?。?/td> | 531K |
| 代理商： | W77E468 |
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Preliminary W77E468
- 2 -
GENERAL DESCRIPTION
The W77E468 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 W77E468 is 1.5
to 3 times faster then 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
W77E468 is a fully static CMOS design; it can also be operated at a lower crystal clock. The
W77E468 contains 32KB flash Multiple-Time Programmable(MTP) ROM, and provides the separate
address and data bus that does not require an external latch device for multiplexing low byte
addresses. The W77E468 also support on-chip 1KB SRAM without external memory component and
glue logic, saving more I/O pins for users application usage if they use on-chip SRAM instead of
external SRAM.
FEATURES
8-bit CMOS microcontroller
High speed architecture of 4 clocks/machine cycle runs up to 40 MHz
Pin compatible with standard 80C52
Instruction-set compatible with MCS-51
Six 8-bit I/O Ports and one 4-bit I/O Port
Three 16-bit Timers
12 interrupt sources with two levels of priority
On-chip oscillator and clock circuitry
Two enhanced full duplex serial ports
32 KB flash Multiple-Time Programmable(MTP) ROM
256 bytes scratch-pad RAM
1 KB on-chip SRAM for MOVX instruction
Programmable Watchdog Timer
Dual 16-bit Data Pointers
Hardware/Software optional variable access cycle to external RAM/peripherals
Packages:
QFP 100: W77E468F-25/40
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W77E516 | 8-BIT MICROCONTROLLER |
| W77E516-25 | 8-BIT MICROCONTROLLER |
| W77E516-40 | 8-BIT MICROCONTROLLER |
| W77E516F-25 | 8-BIT MICROCONTROLLER |
| W77E516F-40 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W77E468F-25 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 BIT MICROCONTROLLER |
| W77E468F-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 BIT MICROCONTROLLER |
| W77E516 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516-25 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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