- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376424 > UPD17215 (NEC Corp.) 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER PDF資料下載
參數(shù)資料
| 型號： | UPD17215 |
| 廠商： | NEC Corp. |
| 元件分類： | 4位微控制器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4位單片機(jī)的小型通用紅外遙控器 |
| 文件頁數(shù)： | 33/84頁 |
| 文件大?。?/td> | 350K |
| 代理商： | UPD17215 |
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頁第27頁第28頁第29頁第30頁第31頁第32頁當(dāng)前第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
μ
PD17215, 17216, 17217, 17218
33
When bit 7 of NRZLTMM is 0 (carrier not output)
3
2
1
0
0
0
0
NRZ
Address
RF : 12H
NRZ
On reset
0H
R/W
R/W
0
1
NRZ Data
Outputs low level to REM pin
Outputs a carrier to REM pin or high level output
3
2
1
0
0
0
0
NRZBF
Address
RF : 11H
NRZBF
On reset
0H
R/W
R/W
0
1
NRZ Data Output Next
NRZ buffer bit. Transfered to NRZ by interrupt
signal for 8-bit timer.
NRZ
REM
Setting carrier frequency and duty factor
Where the system clock frequency is f
X
and carrier frequency is f
C
:
l
(division ratio) = f
X
/(2
×
f
C
)
l
is divided into m:n and is set in the modulo registers as follows:
High-level period set value = {
l
×
m/(m + n)} - 1
Low-level period set value = {
l
×
n/(m + n)} - 1
Example:
Where f
c
= 38 kHz, duty factor (high-level period) = 1/3, and f
x
= 4 MHz,
l
= 4 MHz/(2 x 38 kHz) = 52.6
m:n = 1:2
From the above, the value of the modulo register is:
High-level period ·
Low-level period ·
Therefore, the carrier frequency is 37.74 kHz.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD17217 | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17232MC | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17230MC | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17235GT | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17235MC | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD17215CT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17215GT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17216 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17216CT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17216GT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。