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參數(shù)資料
| 型號： | PIC18F4553 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 28/40/44-Pin High-Performance, Enhanced Flash, USB Microcontrollers with 12-Bit A/D and nanoWatt Technology |
| 中文描述： | 28/40/44-Pin高性能，增強型閃存，USB微控制器與12位A / D和納瓦技術(shù) |
| 文件頁數(shù)： | 21/46頁 |
| 文件大小： | 607K |
| 代理商： | PIC18F4553 |
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2007 Microchip Technology Inc.
Preliminary
DS39887B-page 19
PIC18F2458/2553/4458/4553
2.0
12-BIT ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
The Analog-to-Digital (A/D) Converter module has
10 inputs for the 28-pin devices and 13 for the 40-pin
and 44-pin devices. This module allows conversion of an
analog input signal to a corresponding 12-bit digital
number.
The module has five registers:
A/D Result High Register (ADRESH)
A/D Result Low Register (ADRESL)
A/D Control Register 0 (ADCON0)
A/D Control Register 1 (ADCON1)
A/D Control Register 2 (ADCON2)
The ADCON0 register, shown in Register 2-1, controls
the operation of the A/D module. The ADCON1
register, shown in Register 2-2, configures the
functions of the port pins. The ADCON2 register,
shown in Register 2-3, configures the A/D clock
source, programmed acquisition time and justification.
REGISTER 2-1:
ADCON0: A/D CONTROL REGISTER 0
U-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
—
CHS3
CHS2
CHS1
CHS0
GO/DONE
ADON
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
bit 5-2
Unimplemented:
Read as ‘
0
’
CHS3:CHS0:
Analog Channel Select bits
0000
= Channel 0 (AN0)
0001
= Channel 1 (AN1)
0010
= Channel 2 (AN2)
0011
= Channel 3 (AN3)
0100
= Channel 4 (AN4)
0101
= Channel 5 (AN5)
(1,2)
0110
= Channel 6 (AN6)
(1,2)
0111
= Channel 7 (AN7)
(1,2)
1000
= Channel 8 (AN8)
1001
= Channel 9 (AN9)
1010
= Channel 10 (AN10)
1011
= Channel 11 (AN11)
1100
= Channel 12 (AN12
1101
= Unimplemented
(2)
1110
= Unimplemented
(2)
1111
= Unimplemented
(2)
GO/DONE:
A/D Conversion Status bit
When ADON =
1
:
1
= A/D conversion in progress
0
= A/D Idle
ADON:
A/D On bit
1
= A/D Converter module is enabled
0
= A/D Converter module is disabled
bit 1
bit 0
Note 1:
These channels are not implemented on 28-pin devices.
Performing a conversion on unimplemented channels will return a floating input measurement.
2:
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC18F4553-I/ML | 功能描述:8位微控制器 -MCU 32KB FLSH 2048 RAM FSUSB 2.0 12B ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC18F4553-I/P | 功能描述:8位微控制器 -MCU 32KB FLSH 2048 RAM FSUSB 2.0 12B ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC18F4553-I/P | 制造商:Microchip Technology Inc 功能描述:8-Bit Microcontroller IC |
| PIC18F4553-I/PT | 功能描述:8位微控制器 -MCU 32KB FLSH 2048 RAM FSUSB 2.0 12B ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC18F4553T-I/ML | 功能描述:8位微控制器 -MCU 32KB FLSH 2048 RAM FSUSB 2.0 12B ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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