參數(shù)資料
型號： PIC16LC72-04/SP
廠商： Microchip Technology
文件頁數(shù)： 61/111頁
文件大?。?/td> 0K
描述： IC MCU OTP 2KX14 A/D PWM 28DIP
產(chǎn)品培訓模塊： Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標準包裝： 15
系列： PIC® 16C
核心處理器： PIC
芯體尺寸： 8-位
速度： 4MHz
連通性： I²C，SPI
外圍設(shè)備： 欠壓檢測/復位，POR，PWM，WDT
輸入/輸出數(shù)： 22
程序存儲器容量： 3.5KB（2K x 14）
程序存儲器類型： OTP
RAM 容量： 128 x 8
電壓 - 電源 (Vcc/Vdd)： 2.5 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 5x8b
振蕩器型： 外部
工作溫度： 0°C ~ 70°C
封裝/外殼： 28-DIP（0.300"，7.62mm）
包裝： 管件
PIC16C72 Series
1998 Microchip Technology Inc.
Preliminary
DS39016A-page 53
9.0
ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
The analog-to-digital (A/D) converter module has ve
inputs for the PIC16C72/R72.
The A/D allows conversion of an analog input signal to
a corresponding 8-bit digital number (refer to Applica-
tion Note AN546 for use of A/D Converter). The output
of the sample and hold is the input into the converter,
which generates the result via successive approxima-
tion. The analog reference voltage is software select-
able to either the device’s positive supply voltage (VDD)
or the voltage level on the RA3/AN3/VREF pin.
The A/D converter has a unique feature of being able
to operate while the device is in SLEEP mode. To oper-
ate in sleep, the A/D conversion clock must be derived
from the A/D’s internal RC oscillator.
Additional information on the A/D module is available in
the PICmicro Mid-Range MCU Reference Manual,
DS33023.
The A/D module has three registers. These registers
are:
A/D Result Register (ADRES)
A/D Control Register 0 (ADCON0)
A/D Control Register 1 (ADCON1)
A device reset forces all registers to their reset state.
This forces the A/D module to be turned off, and any
conversion is aborted.
The ADCON0 register, shown in Figure 9-1, controls
the operation of the A/D module. The ADCON1 regis-
ter, shown in Figure 9-2, congures the functions of the
port pins. The port pins can be congured as analog
inputs (RA3 can also be a voltage reference) or as dig-
ital I/O.
FIGURE 9-1:
ADCON0 REGISTER (ADDRESS 1Fh)
R/W-0
U-0
R/W-0
ADCS1 ADCS0
CHS2
CHS1
CHS0
GO/DONE
—
ADON
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit7
bit0
bit 7-6:
ADCS1:ADCS0: A/D Conversion Clock Select bits
00
= FOSC/2
01
= FOSC/8
10
= FOSC/32
11
= FRC (clock derived from an internal RC oscillator)
bit 5-3: CHS2:CHS0: Analog Channel Select bits
000
= channel 0, (RA0/AN0)
001
= channel 1, (RA1/AN1)
010
= channel 2, (RA2/AN2)
011
= channel 3, (RA3/AN3)
100
= channel 4, (RA5/AN4)
bit 2:
GO/DONE: A/D Conversion Status bit
If ADON = 1
1 = A/D conversion in progress (setting this bit starts the A/D conversion)
0 = A/D conversion not in progress (This bit is automatically cleared by hardware when the A/D conver-
sion is complete)
bit 1:
Unimplemented: Read as '0'
bit 0:
ADON: A/D On bit
1 = A/D converter module is operating
0 = A/D converter module is shutoff and consumes no operating current
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PIC16LC72A-04/SO 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O 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 安裝風格:SMD/SMT
PIC16LC72A-04/SP 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O 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 安裝風格:SMD/SMT
PIC16LC72A-04/SS 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O 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 安裝風格:SMD/SMT
PIC16LC72A-04I/ML 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O 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 安裝風格:SMD/SMT
PIC16LC72A-04I/SO 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O 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 安裝風格:SMD/SMT
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