- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄363670 > NT68F62 (Electronic Theatre Controls, Inc.) 8-Bit Microcontroller for Monitor (32K Flash MTP Type) PDF資料下載
參數(shù)資料
| 型號： | NT68F62 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8-Bit Microcontroller for Monitor (32K Flash MTP Type) |
| 中文描述： | 8位微控制器的監(jiān)視器（32K閃存中期型） |
| 文件頁數(shù)： | 15/57頁 |
| 文件大?。?/td> | 521K |
| 代理商： | NT68F62 |
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頁當前第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
NT68F62
15
9. PWM DACs
(Pulse Width Modulation D/A Converters)
There are 13 PWM D/A converters with 8-bit resolution in the NT68F62. All of these D/A (DAC0 - DAC12) converters are of
open-drain output structure with an external 5V applied maximum. DAC0 – DAC6 are dedicated PWM channels, and DAC7 -
DAC12 are shared with the I/O pins. These shared PWM channels are activated by clearing the correspondent control bits in
the ENDAC control register ($000F). When users write '0' into one of the enable control bits, its correspondent I/O pin will be
switched to a PWM output pin.
The PWM refresh rate is 62.5KHz operating on an 8MHz system clock. There are 13 readable DACH registers
corresponding to 13 PWM channels ($0030 - $003D). Each PWM output pulse width is programmable by setting the 8 bit
digital to the corresponding DACH registers. When these DACH registers are set to 00H, the DAC will output LOW (GND
level) and every 1 bit addition will add 62.5ns pulse width. After reset, all DAC outputs are set to 80H (1/2 duty output).
(Please refer to Figure 9.1 for the detailed timing diagram of the PWM D/A output.)
Fosc
8MHz
01
02
m
255(FF)
255
0
1
2
m
255
1
PWM value :
00
Figure 9.1. The DAC Output Timing Diagram and Wave Table
03
3
m-1
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NT68F62U | 8-Bit Microcontroller for Monitor (32K Flash MTP Type) |
| NT68P61A | 8-Bit Microcontroller for Monitor (24K OTP ROM Type) |
| NT68P62 | 8-Bit Microcontroller for Monitor (32K OTP ROM Type) |
| NT68P62-01 | 8-Bit Microcontroller for Monitor (32K OTP ROM Type) |
| NT68P62U | 8-Bit Microcontroller for Monitor (32K OTP ROM Type) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NT68F62U | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller for Monitor (32K Flash MTP Type) |
| NT68P61A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller for Monitor (24K OTP ROM Type) |
| NT6C34CA | 制造商:ASTEC 功能描述: 制造商:Emerson Network Power - Embedded Power 功能描述: |
| NT6DM32M16AD-T1 | 制造商:Nanya Technology Corporation 功能描述:MOBILE DRAM |
| NT6DM32M16BD-T1 | 制造商:NANYA TECHNOLOGY 功能描述:512M LPDDR SDRAM, 32Mx16, 200MHz 制造商:NANYA TECHNOLOGY 功能描述:NT6DM32 Series 1.8 V 512 Mb (32 Mb x 16) 200 MHz SDRAM - FBGA-60 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。