- 您現在的位置：買賣IC網 > PDF目錄363900 > W78LE51 (WINBOND ELECTRONICS CORP) 8-BIT MTP MICROCONTROLLER PDF資料下載
參數資料
| 型號： | W78LE51 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 8-BIT MTP MICROCONTROLLER |
| 中文描述： | 8位單片機中期計劃 |
| 文件頁數： | 7/21頁 |
| 文件大小： | 304K |
| 代理商： | W78LE51 |
Preliminary W78LE51
Publication Release Date: December 1998
- 7 -
Revision A1
CLRW: Clear watch-dog timer and prescaler if set. This flag will be cleared automatically
WIDL : If this bit is set, watch-dog is enabled under IDLE mode. If cleared, watch-dog is disabled
under IDLE mode. Default is cleared.
PS2, PS1, PS0: Watch-dog prescaler timer select. Prescaler is selected when set PS2
0 as follows:
PS2 PS1 PS0
0 0 0
0 1 0
0 0 1
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
PRESCALER SELECT
2
4
8
16
32
64
128
256
The time-out period is obtained using the following equation:
1
OSC
2
PRESCALER 1000 12 mS
14
×
×
Before Watchdog time-out occurs, the program must clear the 14-bit timer by writing 1 to WDTC.6
(CLRW). After 1 is written to this bit, the 14-bit timer , prescaler and this bit will be reset on the next
instruction cycle. The Watchdog timer is cleared on reset.
OSC
1/12
PRESCALER
14-BIT TIMER
CLEAR
CLRW
EXTERNAL
RESET
INTERNAL
RESET
WIDL
IDLE
ENW
Watchdog Timer Block Diagram
Typical Watch-Dog time-out period when OSC = 20 MHz
PS2 PS1 PS0
0 0 0
0 1 0
0 0 1
0 1 1
WATCHDOG TIME-OUT PERIOD
19.66 mS
39.32 mS
78.64 mS
157.28 mS
相關PDF資料 |
PDF描述 |
|---|---|
| W78LE51-24 | 8-BIT MTP MICROCONTROLLER |
| W78LE51P-24 | 8-BIT MTP MICROCONTROLLER |
| W78LE52 | 8-BIT MTP MICROCONTROLLER |
| W78LE52-24 | 8-BIT MTP MICROCONTROLLER |
| W78LE52P-24 | 8-BIT MTP MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W78LE51_06 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78LE51-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MTP MICROCONTROLLER |
| W78LE516 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78LE516_06 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78LE516-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
發布緊急采購，3分鐘左右您將得到回復。