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參數(shù)資料
| 型號： | M38851M1-XXXHP |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | Single 2.7-V High-Slew-Rate Rail-to-Rail Output Operational Amplifier With Shutdown 8-SOIC -40 to 125 |
| 中文描述： | 單芯片8位CMOS微機 |
| 文件頁數(shù)： | 67/103頁 |
| 文件大?。?/td> | 1580K |
| 代理商： | M38851M1-XXXHP |
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3885 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
65
D-A CONVERTER
The 3885 group has two internal D-A converters (DA1 and DA2)
with 8-bit resolution.
The D-A converter is performed by setting the value in each D-A
conversion register. The result of D-A conversion is output from
the DA1 or DA2 pin by setting the DA output enable bit to “1”.
When using the D-A converter, the corresponding port direction
register bit (P56 for DA1 or P57 for DA2) must be set to “0” (input
status).
The output analog voltage V is determined by the value n (decimal
notation) in the D-A conversion register as follows:
V = VREF n/256 (n = 0 to 255)
Where VREF is the reference voltage.
At reset, the D-A conversion registers are cleared to “0016”, the
DA output enable bits are cleared to “0”, and the P56/DA1/PWM01
and P57/DA2/PWM11 pins become high impedance.
The DA output does not have buffers. Accordingly, connect an ex-
ternal buffer when driving a low-impedance load.
Fig. 62 Block diagram of D-A converter
Fig. 63 Equivalent connection circuit of D-A converter (DA1)
P56/DA1/PWM01
D-A1 conversion register (8)
R-2R resistor ladder
DA1 output enable bit
P57/DA2/PWM11
D-A2 conversion register (8)
R-2R resistor ladder
DA2 output enable bit
D
a
ta
b
u
s
AVSS
VREF
“0”
“1”
MSB
“0”
“1”
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
LSB
2R
P56/DA1/PWM01
D-A1 conversion register
DA1 output enable bit
相關PDF資料 |
PDF描述 |
|---|---|
| M38851M2-XXXHP | Dual 2.7-V High Slew Rate Rail-To-Rail Output Operational Amplifier 8-SOIC 0 to 70 |
| M38851M3-XXXHP | Dual 2.7-V High Slew Rate Rail-To-Rail Output Operational Amplifier 8-SOIC 0 to 70 |
| M38851M4-XXXHP | Dual 2.7-V High Slew Rate Rail-To-Rail Output Operational Amplifier 8-MSOP 0 to 70 |
| M38851M8-XXXHP | Dual 2.7-V High Slew Rate Rail-To-Rail Output Operational Amplifier 8-MSOP 0 to 70 |
| M38851MC-XXXHP | Dual 2.7-V High Slew Rate Rail-To-Rail Output Operational Amplifier 8-MSOP 0 to 70 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M38851M2-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38851M3-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38851M4-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38851M5-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38851M6-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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