- 您現在的位置：買賣IC網 > PDF目錄363894 > W741E260 (WINBOND ELECTRONICS CORP) 4-BIT FLASH MICROCONTROLLER PDF資料下載
參數資料
| 型號： | W741E260 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT FLASH MICROCONTROLLER |
| 中文描述： | 4-BIT, FLASH, 4.19 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 13/94頁 |
| 文件大小： | 554K |
| 代理商： | W741E260 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁當前第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁
W741E260
Publication Release Date: March 1998
- 13 -
Revision A2
Q1
Q2
Q9
Q10 Q11 Q12
Q14
Q13
Fosc
S
R
Q
HEF.0
IEF.0
1. Reset
2. CLR EVF, #01H
3. CLR DIVR0
EVF.0
Hold mode release (HCF.0)
Divider0 interrupt (INT0)
...
Overflow signal
WDT
Enable
/Disable
PMF.3
Fosc/1024
Fosc/16384
Mask Option
Qw1
R
Qw2
R
Qw4
R
Qw3
R
Divider0
System Reset
1. Reset
2. CLR WDT
R
R
R
R
Figure 5. Organization of Divider0 and Watchdog Timer
Parameter Flag (PMF)
The parameter flag is organized as a 4-bit binary register (PMF.0 to PMF.3). The PMF is controlled by
the SET PMF, #I or CLR PMF, #I instruction. The bit descriptions are as follows:
Note: W means write only.
W
0
1
2
3
PMF
Bit 0, Bit1, Bit2 Reserved
Bit 3 = 0 The fundamental frequency of the watchdog timer is F
OSC
/1024.
= 1 The fundamental frequency of the watchdog timer is F
OSC
/16384.
Timer/Counter
1. Timer 0 (TM0)
Timer 0 (TM0) is a programmable 8-bit binary down-counter. The specified value can be loaded into
TM0 by executing the MOV TM0L (TM0H), R or MOV TM0, #I instructions. When the MOV TM0L
(TM0H), R instructions are executed, the TM0 will stop down-counting (if the TM0 is down-counting),
the MR0.3 will be reset to 0, and the specified value is loaded into TM0. If MR0.3 is set to 1, the event
flag 1 (EVF.1) is reset and the TM0 starts to count. When it decrements to FFH, Timer 0 stops
operating and generates an underflow (EVF.1 = 1). The interrupt is executed if the Timer 0 interrupt
enable flag has been set (IEF.1 = 1); and the hold state is terminated if the hold release enable flag 1
has been set (HEF.1 = 1). The Timer 0 clock input can be set as F
OSC
/1024 or F
OSC
/4 by setting
MR0.0 to 1 or by resetting MR0.0 to 0. The default timer value is F
OSC
/4. The organization of Timer 0
is shown in Figure 6.
相關PDF資料 |
PDF描述 |
|---|---|
| W741L260 | 4-BIT MICROCONTROLLER |
| W742C810 | 4-BIT MICROCONTROLLER |
| W742C813 | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| W742C814 | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| W742E813 | 4-BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W741L250 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W741L260 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W7422-A | 制造商:Coilcraft Inc 功能描述:NOT RoHS. Transformer, for Motorola MC33374 |
| W742C(E)811 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-BIT MICROCONTROLLER |
| W742C0-DE-A1/B0/B8-HI | 制造商:Seoul Semiconductor 功能描述:P7 PURE WHITE - Tape and Reel |
發布緊急采購，3分鐘左右您將得到回復。