- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378749 > UPD784054GCA2-XXX-3B9 (NEC Corp.) MICROCONTROLLER|16-BIT|UPD78K4 CPU|CMOS|QFP|80PIN|PLASTIC PDF資料下載
參數(shù)資料
| 型號： | UPD784054GCA2-XXX-3B9 |
| 廠商： | NEC Corp. |
| 英文描述： | MICROCONTROLLER|16-BIT|UPD78K4 CPU|CMOS|QFP|80PIN|PLASTIC |
| 中文描述： | 單片機| 16位| UPD78K4的CPU |的CMOS | QFP封裝| 80腳|塑料 |
| 文件頁數(shù)： | 32/86頁 |
| 文件大?。?/td> | 579K |
| 代理商： | UPD784054GCA2-XXX-3B9 |
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頁第27頁第28頁第29頁第30頁第31頁當前第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頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁
μ
PD784054(A)
32
7.4 A/D Converter
The
μ
PD784054(A) has an analog-to-digital (A/D) converter with 16 multiplexed analog input pins (ANI0
through ANI15). This converter is of successive approximation type.
The result of conversion is stored to and retained in 10-bit A/D conversion result registers (ADCR0 through
ADCR7). Therefore, high-speed, high-accuracy conversion can be performed (conversion time: about 13.5
μ
s:
f
CLK
= 12.5 MHz).
The A/D conversion operation can be started in the following modes:
Hardware start : Conversion is started by trigger input (INTP4).
Software start : Conversion is started by setting a bit of the A/D converter mode register (ADM).
The A/D converter operates in the following modes:
Scan mode
: Sequentially selects two or more analog input pins to obtain data to be converted from all
the pins.
: Selects only one analog input pin to obtain successive conversion values.
Select mode
The above modes and stopping the conversion are specified by ADM.
When the result of conversion is transferred to ADCRn (n = 0 to 7), interrupt request INTAD is generated.
By using this interrupt request and by using macro service, the converted value can be successively transferred
to memory.
Figure 7-5. Block Diagram of A/D Converter
Internal bus
Input
selector
ANI0
ANI1
ANI2
ANI3
ANI4
ANI5
ANI6
ANI7
Input
selector
ANI8
ANI9
ANI10
ANI11
ANI12
ANI13
ANI14
ANI15
Sample & hold circuit
Successive approximation
register (SAR)
Voltage
comparator
Edge
detection
circuit
INTP4
Control
circuit
Conversion
trigger
INTAD
10
Trigger enable
A/D converter mode register
(ADM)
Series resistor string
R/2
R
R/2
AV
REF
AV
SS
8
10
ADCR0
ADCR1
ADCR2
ADCR3
ADCR4
ADCR5
ADCR6
ADCR7
A/D conversion result register
T
相關PDF資料 |
PDF描述 |
|---|---|
| UPD784054GCA-XXX-3B9 | MICROCONTROLLER|16-BIT|UPD78K4 CPU|CMOS|QFP|80PIN|PLASTIC |
| UPD784054GC-XXX-3B9 | MICROCONTROLLER|16-BIT|UPD78K4 CPU|CMOS|QFP|80PIN|PLASTIC |
| UPD784054GCA | 16-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD784054GC | 16-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD784054GCA1 | 16-BIT SINGLE-CHIP MICROCONTROLLER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD784218AGC-382-8EU-NRE-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784218AGC-382-8EU-SES-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784935AGF-113-3BA | 制造商:NEC Electronics Corporation 功能描述: |
| UPD784938AGF-188-3BA | 制造商:NEC Electronics Corporation 功能描述: |
| UPD789104AMC(A)-968-5A4-E2 | 制造商:Renesas Electronics Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。