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參數(shù)資料
| 型號(hào)： | M37221M6-079SP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER |
| 中文描述： | 單芯片8位CMOS微機(jī)電壓合成 |
| 文件頁數(shù)： | 29/61頁 |
| 文件大?。?/td> | 1386K |
| 代理商： | M37221M6-079SP |
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MITSUBISHI MICROCOMPUTERS
M37221M6-XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
29
Fig. 25. 14-bit PWM output example (f(X
IN
) = 8 MHz)
0.25
μ
s
b7
0
b0
0
b6 b5 b4
0
1
b3 b2
1
b1
0
0
1
b13
0
b6
0
0
1
0
1
1
0
b0
0
b5
1
0
1
0
0
Set “2C
16
” to DA-H register.
[DA-H
register]
D
H
At writing of DA-L
b0
0
b6
b5 b4
1
b3 b2
1
b1
0
0
0
Set “28
16
” to DA-L register.
[DA-L register]
D
L
At writing of DA-L
Undefined
These bits decide “H” level area of
fundamental waveform.
Minimum
resolution bit
width 0.25
μ
s
These bits decide smaller interval “tm” in which “H” leval
area is [“H” level area of fundamental waveform +
τ
].
=
High-order 8-bit
value of DA latch
“H” level area of
fundamental waveform
FF
00
D3
FE FD…D6
D4
02 01
D5
14-bit
PWM output
8-bit
counter
0.25
μ
s
44
FF
00
D3
FE FD
D6
D4
02 01
D5
14-bit
PWM output
8-bit
counter
0.25
μ
s
45
Fundamental
waveform
Waveform of smaller interval “tm” specified by low-order 6 bits
Fundamental waveform of smaller interval
“tm” which is not specified by low-order 6
bits is not changed.
14-bit PWM output
Low-order 6-bit output
of DA latch
0.25
μ
s
44
τ
= 0.25
μ
s
T
=
4096
μ
s
Repeat period
t
0
t
1
t
2
t
3
t
4
t
5
t
59
t
60
t
61
t
62
t
63
[DA latch]
…
b7
2C 2B 2A … 03 02 01 00
2C 2B 2A … 03 02 01 00
…
…
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相關(guān)代理商/技術(shù)參數(shù) |
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| M37221M6-286SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER |
| M37221M6H | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37221M6H-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37221M6H-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37221M6-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
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