- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄102744 > M37544M2-XXXGP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32 PDF資料下載
參數(shù)資料
| 型號： | M37544M2-XXXGP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32 |
| 封裝： | 7 X 7 MM, 0.80 MM PITCH, LQFP-32 |
| 文件頁數(shù)： | 22/44頁 |
| 文件大?。?/td> | 583K |
| 代理商： | M37544M2-XXXGP |
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頁當前第22頁第23頁第24頁第25頁第26頁第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
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7544 Group
MITSUBISHI MICROCOMPUTERS
29
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Som
e parametric
limits
are
subject
to change.
A-D Converter
The functional blocks of the A-D converter are described below.
[A-D conversion register] AD
The A-D conversion register is a read-only register that stores the
result of A-D conversion. Do not read out this register during an A-
D conversion.
[A-D control register] ADCON
The A-D control register controls the A-D converter. Bit 2 to 0 are
analog input pin selection bits. Bit 4 is the AD conversion comple-
tion bit. The value of this bit remains at “0” during A-D conversion,
and changes to “1” at completion of A-D conversion.
A-D conversion is started by setting this bit to “0”.
[Comparison voltage generator]
The comparison voltage generator divides the voltage between
AVSS and VREF by 256, and outputs the divided voltages.
[Channel selector]
The channel selector selects one of ports P25/AN5 to P20/AN0,
and inputs the voltage to the comparator.
[Comparator and control circuit]
The comparator and control circuit compares an analog input volt-
age with the comparison voltage and stores its result into the A-D
conversion register. When A-D conversion is completed, the con-
trol circuit sets the AD conversion completion bit and the AD
interrupt request bit to “1”. Because the comparator is constructed
linked to a capacitor, set f(XIN) to 500 kHz or more during A-D con-
version.
Fig. 31 Structure of A-D control register
Fig. 32 Block diagram of A-D converter
A-D control register
(ADCON : address 003416, initial value: 1016)
Disable (returns “0” when read)
AD conversion completion bit
0 : Conversion in progress
1 : Conversion completed
b7
b0
Analog input pin selection bits
000 : P20/AN0
001 : P21/AN1
010 : P22/AN2
011 : P23/AN3
100 : P24/AN4
101 : P25/AN5
110 : Disable
111 : Disable
A-D control register
(Address 003416)
Channel
selector
A-D control circuit
Resistor ladder
VREF
Comparator
A-D interrupt request
b7
b0
Data bus
3
8
P20/AN0
P21/AN1
P22/AN2
P23/AN3
P24/AN4
P25/AN5
(Address 003516)
A-D conversion register
VSS
相關PDF資料 |
PDF描述 |
|---|---|
| MC9S12A256BCPV | 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP112 |
| MSM64155AL-XXX | 4-BIT, MROM, 0.075 MHz, MICROCONTROLLER, UUC99 |
| M37542M4T-XXXGP | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP32 |
| MC9S12DJ256BMPV | 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112 |
| MC9S12DJ256BVPV | 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M37544M2-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37544M2-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37544RSS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37545G1KP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37545G2KP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復。