- 您现在的位置：买卖IC网 > PDF目录381492 > AT83C5112 (Atmel Corp.) 8-bit Microcontroller with A/D Converter PDF资料下载
参数资料
| 型号： | AT83C5112 |
| 厂商： | Atmel Corp. |
| 英文描述： | 8-bit Microcontroller with A/D Converter |
| 中文描述： | 8位微控制器与A / D转换器 |
| 文件页数： | 49/97页 |
| 文件大小： | 1229K |
| 代理商： | AT83C5112 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页当前第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页
49
AT8xC5112
4191B
–
8051
–
04/03
Clock Selection
The maximum clock frequency for ADC (CONV_CK for Conversion Clock) is defined in
the AC characteristics section. A prescaler is featured (ADCCLK) to generate the
CONV_CK clock from the oscillator frequency.
Figure 21.
A/D Converter Clock
The conversion frequency CONV_CK is derived from the oscillator frequency with the
following formulas :
F
CkAdc
= F
OscOut
/(512 - 2*CKRL) , if X2=0
= F
OscOut
, if X2=1
and
F
CONV_CK
= F
CkAdc
/(2*PRS), if PRS > 0
F
CONV_CK
= F
CkAdc
/256, if PRS = 0
Some examples can be found in the table below:
ADC Standby Mode
When the ADC is not used, it is possible to set it in standby mode by clearing bit ADEN
in ADCON register.
In this mode the power dissipation is about 1μW.
Voltage Reference
The Vref pin is used to enter the voltage reference for the A/D conversion.
Best accuracy is obtained with 0.9 Vcc < Vref < Vcc.
IT ADC Management
An interrupt end-of-conversion will occur when the bit ADEOC is activated and the bit
EADC is set. To re-arm the interrupt the bit ADEOC must be cleared by software.
Figure 22.
ADC Interrupt Structure
Prescaler ADCLK
A/D
Converter
CONV_CK
CKADC
/2
F
OscOut
MHz
X2
CKRL
F
CkAdc
Mhz
ADCLK
F
CONV_CK
khz
Conversion
time
μ
s
16
0
FF
8
12
333
33
16
1
NA
16
32
250
44
ADEOC
ADCON.2
EADC
IE1.1
ADCI
相关PDF资料 |
PDF描述 |
|---|---|
| AT87C5112 | 8-bit Microcontroller with A/D Converter |
| AT80C51RB2-3CSCM | 80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RB2-3CSIM | 80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RB2-3CSUM | 80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RB2-RLTIL | 80C51 High Performance ROM 8-bit Microcontroller |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT83C5121 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with Multiprotocol Smart Card Interface |
| AT83C5121XXX-ICRUL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with Multiprotocol Smart Card Interface |
| AT83C5121XXX-ICSUL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with Multiprotocol Smart Card Interface |
| AT83C5121XXX-PURUL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with Multiprotocol Smart Card Interface |
| AT83C5121XXX-PUTUL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with Multiprotocol Smart Card Interface |
发布紧急采购，3分钟左右您将得到回复。