- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45029 > M37221EFSP 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP42 PDF資料下載
參數(shù)資料
| 型號： | M37221EFSP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| 封裝： | 0.600 INCH, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-42 |
| 文件頁數(shù)： | 27/63頁 |
| 文件大?。?/td> | 1371K |
| 代理商： | M37221EFSP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁當(dāng)前第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁
M37221EF-XXXSP,M37221EFSP
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
33
Storage bit of comparison result
0 : Input voltage < reference voltage
1 : Input voltage > reference voltage
A-D control register 1
(AD1: address 00EE16)
Analog input pin selection bits
b2 b1 b0
0
0 : A-D1
0
1 : A-D2
0
1
0 : A-D3
0
1
1 : A-D4
1
0
0 : A-D5
1
0
1 : A-D6
1
0 :
1
1 :
Do not set.
0
7
A-D control register 1
Bits 0 to 2
Comparator control
Data bus
Bit 4
Switch tree
A-D control
register 2
Resistor ladder
Compa-
rator
Analog
signal
switch
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
A-D control
register 1
P15/A-D1/INT3
P16/A-D2
P17/A-D3
P06/INT2/A-D4
P30/A-D5/DA1
P31/A-D6/DA2
0
7
A-D control register 2
(AD2: address 00EF16)
D-A converter set bits
Refer to Table 7.
A-D control register 2
Bit 1
0
1
0
1
Bit 0
0
1
0
1
0
1
A-D COMPARATOR
A-D comparator consists of 6-bit D-A converter and comparator. A-D
comparator block diagram is shown in Figure 31.
The reference voltage “Vref” for D-A conversion is set by bits 0 to 5 of
the A-D control register 2 (address 00EF16).
The comparison result of the analog input voltage and the reference
voltage “Vref” is stored in bit 4 of the A-D control register 1 (address
00EE16).
For A-D comparison, set “0” to corresponding bits of the direction
register to use ports as analog input pins. Write the data for select of
analog input pins to bits 0 to 2 of the A-D control register 1 and write
the digital value corresponding to Vref to be compared to the bits 0
to 5 of the A-D control register 2. The voltage comparison starts by
writing to the A-D control register 2, and it is completed after 16 ma-
chine cycles (NOP instruction ! 8).
Table 7. Relation between contents of A-D control register 2 and
reference voltage “Vref”
Bit 4
0
1
Bit 3
0
1
Bit 2
0
1
Bit 5
0
1
1/128 VCC
3/128 VCC
5/128 VCC
123/128 VCC
125/128 VCC
127/128 VCC
Reference
voltage “Vref”
…
Fig. 29. Structure of A-D control register 1
Fig.30. Structure of A-D control register 2
Fig. 31. A-D comparator block diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37221M6-XXXFP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42 |
| M37221M6-XXXSP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42 |
| M37221M6H-XXXFP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42 |
| M37221EASP | 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP42 |
| M37221M4H-XXXSP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37221FP | 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 |
| M37221M4H | 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 |
| M37221M4H-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 |
| M37221M4H-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 | 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。