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參數資料
| 型號： | W78E51B-24 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MTP MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁數： | 1/23頁 |
| 文件大小： | 324K |
| 代理商： | W78E51B-24 |
Preliminary W78E51B
8-BIT MTP MICROCONTROLLER
Publication Release Date: December 1998
- 1 -
Revision A1
GENERAL DESCRIPTION
The W78E51B is an 8-bit microcontroller which can accommodate a wider frequency range with low
power consumption. The instruction set for the W78E51B is fully compatible with the standard 8051.
The W78E51B contains an 4K bytes MTP ROM (Multiple-Time Programmable ROM); a 128 bytes
RAM; four 8-bit bi-directional and bit-addressable I/O ports; an additional 4-bit I/O port P4; two 16-bit
timer/counters; a hardware watchdog timer and a serial port. These peripherals are supported by
seven sources two-level interrupt capability. To facilitate programming and verification, the MTP-
ROM inside the W78E51B allows the program memory to be programmed and read electronically.
Once the code is confirmed, the user can protect the code for security.
The W78E51B microcontroller has two power reduction modes, idle mode and power-down mode,
both of which are software selectable. The idle mode turns off the processor clock but allows for
continued peripheral operation. The power-down mode stops the crystal oscillator for minimum power
consumption. The external clock can be stopped at any time and in any state without affecting the
processor.
FEATURES
Fully static design 8-bit CMOS microcontroller
Wide supply voltage of 4.5V to 5.5V
128 bytes of on-chip scratchpad RAM
4 KB electrically erasable/programmable MTP-ROM
64 KB program memory address space
64 KB data memory address space
Four 8-bit bi-directional ports
One extra 4-bit bit-addressable I/O port, additional
INT2
/ INT3
(available on 44-pin PLCC/QFP package)
Two 16-bit timer/counters
One full duplex serial port(UART)
Watchdog Timer
seven sources, two-level interrupt capability
EMI reduction mode
Built-in power management
Code protection mechanism
Packages:
DIP 40: W78E51B-24/40
PLCC 44: W78E51BP-24/40
PQFP 44: W78E51BF-24/40
相關PDF資料 |
PDF描述 |
|---|---|
| W78E51B-40 | 8-BIT MTP MICROCONTROLLER |
| W78E51B | 8-BIT MTP Monitor Microcontroller(多次可編程的8位的監視微控制器) |
| W78E51BF-24 | 8-BIT MTP MICROCONTROLLER |
| W78E51BF-40 | 8-BIT MTP MICROCONTROLLER |
| W78E51BP-40 | 8-BIT MTP MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W78E51B-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MTP MICROCONTROLLER |
| W78E51BF-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MTP MICROCONTROLLER |
| W78E51BF-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MTP MICROCONTROLLER |
| W78E51BP-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MTP MICROCONTROLLER |
| W78E51BP-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MTP MICROCONTROLLER |
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