- 您現在的位置：買賣IC網 > PDF目錄363894 > W742C810 (WINBOND ELECTRONICS CORP) 4-BIT MICROCONTROLLER PDF資料下載
參數資料
| 型號： | W742C810 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT MICROCONTROLLER |
| 中文描述： | 4-BIT, MROM, 3.58 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, 2.75 MM HEIGHT, QFP-100 |
| 文件頁數： | 27/42頁 |
| 文件大小： | 501K |
| 代理商： | W742C810 |
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頁當前第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
Preliminary W742C810
Publication Release Date: May 1999
- 27 -
Revision A1
Bit 0 = 1 Signal change at RC.0
Bit 1 = 1 Signal change at RC.1
Bit 2 = 1 Signal change at RC.2
Bit 3 = 1 Signal change at RC.3
6.19 Output Port RE & RF
Output port RE is used as an output of the internal RT port. When the MOV RE, R instruction is
executed, the data in the RAM will be output to port RT through port RE. It provides a high sink
current to drive an LED. RF port is just used as an output port. When the MOV RF, R instruction is
executed, the data in the RAM will be output to RF.
6.20 DTMF Output Pin (DTMF)
This pin should output the dual tone multi-frequency signal from the DTMF generator. There is a
DTMF register that can specify the wanted low/high frequency, and the Dual Tone Control Register
(DTCR) can control whether the dual tone will be output or not. The tones are divided into two groups
(low group and high group); one tone from each group is selected to represent a digit. The relation
between the DTMF signal and the corresponding touch tone keypad is shown in Figure 6-13.
1
2
3
A
4
5
6
B
7
8
9
C
*
0
#
D
R1
R2
R3
R4
C1
C2
C3
C4
Row/Col
Frequency
R1
697 Hz
R2
R3
R4
770 Hz
852 Hz
941 Hz
C1
C2
C3
1209 Hz
1336 Hz
1477 Hz
C4
1633 Hz
Figure 6-13 The relation between the touch tone keypad and the frequency
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| W742C81A | 4-BIT MICROCONTROLLER |
| W742S819 | 4-BIT TELEPHONE CONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W742C811 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W742C813 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 BIT MICROCONTROLLER |
| W742C814 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 BIT MICROCONTROLLER |
| W742C816 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| W742C818 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
發布緊急采購，3分鐘左右您將得到回復。