參數(shù)資料
型號： PIC16F785
廠商： Microchip Technology Inc.
英文描述： 20-Pin Flash-Based 8-Bit CMOS Microcontroller with Two-Phase Asychronous Feedback PWM, Dual High-Speed Comparators and Dual Operational Amplifiers
中文描述： 20引腳基于閃存的8兩相異步反饋的PWM，雙高位CMOS微控制器的高速比較器和雙運算放大器
文件頁數(shù)： 73/178頁
文件大?。?/td> 1620K
代理商： PIC16F785
2004 Microchip Technology Inc.
Preliminary
DS41249A-page 71
PIC16F785
10.2
VR REFERENCE MODULE
The VR Reference Module generates a 1.2V nominal
output voltage for use by the ADC and comparators.
The output voltage can also be brought out to the V
REF
pin for user applications. This module uses a Bandgap
as a reference. See Table 18-9 for detailed specifica-
tions. Register 10-2 shows the control register for the
VR module.
REGISTER 10-2:
VOLTAGE REFERENCE CONTROL REGISTER (REFCON: 98h)
U-0
—
U-0
—
R-0
BGST
R/W-0
VRBB
R/W-0
VREN
R/W-0
VROE
R/W-0
CVROE
U-0
—
bit7
bit0
bit 7-6:
Unimplemented:
Read as ‘
0
’
bit 5:
BGST:
Bandgap Reference Voltage Stable Flag bit
1
= Reference is stable
0
= Reference is not stable
bit 4:
VRBB:
Voltage Reference Buffer Bypass bit
1
= V
REF
output is not buffered
0
= V
REF
output is buffered
bit 3:
VREN:
Voltage Reference Enable bit (VR = 1.2V nominal)
1
= VR reference is enabled
0
= VR reference is disabled and does not consume any current
bit 2:
VROE:
Voltage Reference Output Enable bit
If CVROE =
0
:
1
= V
REF
output on RA1/AN1/C12IN0-/V
REF
/ICSPCLK pin is 1.2 volt VR analog reference
0
= Disabled, 1.2 volt VR analog reference is used internally only
If CVROE =
1
:
VROE has no effect.
bit 1
CVROE
: Comparator Voltage Reference Output Enable bit (see Figure 10-2)
1
= V
REF
output on RA1/AN1/C12IN0-/V
REF
/ICSPCLK pin is CV
REF
voltage
0
= V
REF
output on RA1/AN1/C12IN0-/V
REF
/ICSPCLK pin is controlled by VROE
bit 0:
Unimplemented:
Read as ‘
0
’
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ - bit as set
U = Unimplemented bit, read as ‘0’
‘0’ = bit is cleared
x = bit is unknown
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參數(shù)描述
PIC16F785-E/ML 功能描述:8位微控制器 -MCU 3.5 KB 128 RAM 18I/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
PIC16F785-E/P 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 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
PIC16F785-E/SO 功能描述:8位微控制器 -MCU 3.5KB FL 128R 18 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
PIC16F785-E/SS 功能描述:8位微控制器 -MCU 3.5KB FL 128R 18 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
PIC16F785-I/ML 功能描述:8位微控制器 -MCU 3.5 KB 128 RAM 18I/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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