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參數(shù)資料
| 型號(hào)： | 3802 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | TRANS PREBIASED NPN 200MW SOT-23 |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁(yè)數(shù)： | 24/51頁(yè) |
| 文件大小： | 692K |
| 代理商： | 3802 |
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MITSUBISHI MICROCOMPUTERS
3802 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
24
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 register
1/2
X
IN
Port P5
6
latch
PWM enable bit
Port P5
6
PWM prescaler
PULSE WIDTH MODULATION (PWM)
The 3802 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 port P5
6
. Set the PWM pe-
riod by the PWM prescaler, and set the period during which the
output pulse is an “H” by the PWM register.
If 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 bit 0 (PWM enable bit) of the PWM control register is set to
“1”, operation starts by initializing the PWM output circuit, and
pulses are output starting at an “H”.
If 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. 18 Timing of PWM cycle
Fig. 19 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 X
IN
= 5
MHz)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 3802_M | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES |
| 38020 | 功能描述:DIN導(dǎo)軌式接線端子 1poledistiblock,250A IN 1 RoHS:否 制造商:Phoenix Contact 類型:Feed Through Modular Terminal Block 位置/觸點(diǎn)數(shù)量:1 線規(guī)量程:26-14 電流額定值:5 A, 15 A 電壓額定值:300 V, 600 V 安裝風(fēng)格: 端接類型:Push-In |
| 38-020 | 功能描述:SET 3/8DR 6PT 20MM 制造商:apex tool group 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1 |
| 380200 | 制造商:Weidmuller 功能描述:TB14, ENCLOSURE,4GP,ST, ZINC -EA - Bulk |
| 380-200 | 制造商:Circuit Test 功能描述:TEST LEADS - MEDIUM CLIP PKG/10 (2 EACH - 5 C |
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