- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370923 > M38275M1-XXXHP (Mitsubishi Electric Corporation) Dual Low-Power Rail-to-Rail Input/Output Op Amp w/Shutdown 14-PDIP -40 to 125 PDF資料下載
參數(shù)資料
| 型號： | M38275M1-XXXHP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | Dual Low-Power Rail-to-Rail Input/Output Op Amp w/Shutdown 14-PDIP -40 to 125 |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁數(shù)： | 31/70頁 |
| 文件大?。?/td> | 1112K |
| 代理商： | M38275M1-XXXHP |
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頁當(dāng)前第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
31
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3827 Group
PULSE WIDTH MODULATION (PWM)
The 3827 group has a PWM function with an 8-bit resolution,
based on a signal that is the clock input X
IN
or that clock input di-
vided by 2.
Data Setting
The PWM output pin also functions as ports P5
0
and P5
1
. Set the
PWM period by the PWM prescaler, and set the period during
which the output pulse is an “H” by the PWM register.
If PWM count source is f(X
IN
) and the value in the PWM prescaler
is n and the value in the PWM register is m (where n = 0 to 255
and m = 0 to 255) :
PWM period = 255
(n+1)/f(X
IN
)
= 51
(n+1)
μ
s (when X
IN
= 5 MHz)
Output pulse “H” period = PWM period
m/255
= 0.2
(n+1)
m
μ
s
(when X
IN
= 5 MHz)
PWM Operation
When at least either bit 1 (PWM
0
output enable bit) or bit 2 (PWM
1
output enable bit) of the PWM control register is set to “1”, opera-
tion starts by initializing the PWM output circuit, and pulses are
output starting at an “H”. When one PWM output is enabled and
that the other PWM output is enabled, PWM output which is en-
abled to output later starts pulse output from halfway.
When the PWM register or PWM prescaler is updated during
PWM output, the pulses will change in the cycle after the one in
which the change was made.
Fig. 29 Timing of PWM cycle
Fig. 30 Block diagram of PWM function
51
m
(n+1)
255
μ
s
T = [51
(n+1)]
μ
s
PWM output
m: Contents of PWM register
n : Contents of PWM prescaler
T : PWM cycle (when f(X
IN
) = 5 MHz)
Data bus
Count source
selection bit
“0”
“1”
PWM
prescaler pre-latch
PWM
register pre-latch
PWM
prescaler latch
PWM
register latch
Transfer control circuit
PWM circuit
1/2
X
IN
PWM
0
enable bit
Port P5
6
PWM prescaler
PWM
1
enable bit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38275M1MXXXFS | Quad Low-Power Rail-to-Rail Input/Output Op Amp 14-SOIC 0 to 70 |
| M38275M1MXXXGP | Quad Low-Power Rail-to-Rail Input/Output Op Amp 14-SOIC 0 to 70 |
| M38275M1MXXXHP | Quad Low-Power Rail-to-Rail Input/Output Op Amp 14-SOIC 0 to 70 |
| M38275M2-XXXFP | Quad Low-Power Rail-to-Rail Input/Output Op Amp 14-SOIC 0 to 70 |
| M38275M2-XXXFS | Quad Low-Power Rail-to-Rail Input/Output Op Amp 14-PDIP 0 to 70 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M3828 BK001 | 制造商:Alpha Wire Company 功能描述:CBL 3COND 16AWG BLK 1000' |
| M3828 BK002 | 制造商:Alpha Wire Company 功能描述:CBL 3COND 16AWG BLK 500' |
| M3828 BK005 | 制造商:Alpha Wire Company 功能描述:CBL 3COND 16AWG BLK 100' |
| M3828 BK199 | 制造商:Alpha Wire Company 功能描述:CBL 3COND 16AWG BLK 3000=3000' |
| M3829 BK001 | 制造商:Alpha Wire Company 功能描述:CBL 4COND 16AWG BLK 1000' |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。