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參數(shù)資料
| 型號： | M37513M8-XXXGP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100 |
| 文件頁數(shù)： | 32/39頁 |
| 文件大小： | 1149K |
| 代理商： | M37513M8-XXXGP |
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37
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7513 Group
D-A CONVERTER
The 7513 group has an on-chip D-A converter with 8-bit resolution
and 2 channels (DAi (i=1, 2)). The D-A converter is performed by
setting the value in the D-A conversion register. The result of D-A
converter is output from DAi pin. When using the D-A converter,
the corresponding port direction register bit (P56/DA1, P57/DA2)
should be set to “0” (input status).
The output analog voltage V is determined by the value n (base
10) 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
DAi output enable bits are cleared to “0”, and DAi pin goes to
high impedance state. The DA output is not buffered, so connect
an external buffer when driving a low-impedance load.
Fig. 37 Structure of D-A control register
Fig. 38 Block diagram of D-A converter
Fig. 39 A-D converter, D-A converter block diagram
DA1 output enable bit/DA 1 VREF
ON/OFF switch
DA2 output enable bit/DA 2 VREF
ON/OFF switch
Not used (return “0” when read)
0 : Output disabled/OFF
1 : Output enabled/ON
b7
b0
D-A control register
(DACON : address 0036 16)
VREF
Resistor ladder
A-D conversion register
(10 bits)
D-A1 conversion register (8 bits)
D-A2 conversion register (8 bits)
R-2R resistor ladder
D-A2 output
D-A1 output
(P56)
(P57)
D-A2 output enable switch
D-A1 output enable switch
VREF input
ON/OFF switch
Internal: D-A output
External: VREF
Reference voltage input select switch
D-A1 VREF ON/OFF switch
D-A2 VREF ON/OFF switch
D-A1 conversion register
(DA1: address 003416)
D-A2 conversion register
(DA2: address 003516)
P56/DA1
P57/DA2
Data bus
D-A i conversion register (8)
R-2R resistor ladder
DA i output enable bit
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M37513M8-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37513M9-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37513MA-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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| M37513MC-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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