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參數(shù)資料
| 型號： | M38507E8FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁數(shù)： | 29/86頁 |
| 文件大?。?/td> | 1193K |
| 代理商： | M38507E8FP |
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29
3850 Group (Spec. H)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PULSE WIDTH MODULATION (PWM)
The 3850 group (spec. H) has a PWM function with an 8-bit
resolution, based on a signal that is the clock input X
IN
or that
clock input divided by 2.
Data Setting
The PWM output pin also functions as port P4
4
. Set the PWM
period by the PWM prescaler, and set the
“
H
”
term of output pulse
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
)
= 31.875
(n+1)
μ
s
(when f(X
IN
) = 8 MHz,count source selection bit =
“
0
”
)
Output pulse
“
H
”
term = PWM period
m / 255
= 0.125
(n+1)
m
μ
s
(when f(X
IN
) = 8 MHz,count source selection bit =
“
0
”
)
Fig. 27 Timing of PWM period
Fig. 28 Block diagram of PWM function
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.
3
1
.
8
7
5
2
m
5
(
n
+
1
)
5
μ
s
T
=
[
3
1
.
8
7
5
(
n
+
1
)
]
μ
s
P
W
M
o
u
t
p
u
t
m
n
T
:
:
:
C
C
P
s
o
o
W
e
l
n
n
t
t
M
e
c
e
e
n
n
p
t
i
t
t
s
s
e
n
r
o
o
i
b
f
f
d
i
t
P
P
=
W
W
(
w
M
M
h
0
r
p
n
e
r
g
e
f
(
i
s
X
I
s
t
e
a
N
)
r
l
c
e
r
o
e
”
)
=
8
M
H
z
,
c
o
u
n
t
s
o
u
r
c
e
o
“
Data bus
Count source
selection bit
“
0
”
“
1
”
PWM
prescaler pre-latch
P
t
e
W
r
M
p
r
r
e
g
i
s
e
-
l
a
t
c
h
PWM
prescaler latch
PWM
register latch
Transfer control circuit
PWM register
1/2
X
I
N
Port P4
4
latch
P
W
M
e
n
a
b
l
e
b
i
t
Port P4
4
P
W
M
p
r
e
s
c
a
l
e
r
(X
CIN
at low-speed mode)
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|---|---|
| M38503E4SS | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38503M4 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38503MXH | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38507E8SP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38503M4H-XXXFP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38507F8AFP#U1 | 功能描述:IC 740/3850 MCU FLASH 42SSOP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 產(chǎn)品培訓(xùn)模塊:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 標(biāo)準(zhǔn)包裝:1 系列:M16C™ M32C/80/87 核心處理器:M32C/80 芯體尺寸:16/32-位 速度:32MHz 連通性:EBI/EMI，I²C，IEBus，IrDA，SIO，UART/USART 外圍設(shè)備:DMA，POR，PWM，WDT 輸入/輸出數(shù):121 程序存儲器容量:384KB（384K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:24K x 8 電壓 - 電源 (Vcc/Vdd):3 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 34x10b，D/A 2x8b 振蕩器型:內(nèi)部 工作溫度:-20°C ~ 85°C 封裝/外殼:144-LQFP 包裝:托盤 產(chǎn)品目錄頁面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87 |
| M38507F8AFP#W1 | 制造商:Renesas Electronics Corporation 功能描述:MCU 3/5V 32K PB-FREE 42-SSOP T&R - Tape and Reel |
| M38507F8FP | 制造商:Renesas Electronics Corporation 功能描述:MCU 8-Bit 740 CISC 32KB Flash 5V 42-Pin SSOP 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB FLASH 5V 42SSOP - Trays |
| M38507F8FP#U1 | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB FLASH 5V 42SSOP - Trays |
| M38507F8FP#W1 | 制造商:Renesas Electronics Corporation 功能描述:FLASH 8-BIT 2.7 TO 5.5V PBFREE |
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