参数资料
型号: PIC16LF721-I/P
厂商: Microchip Technology
文件页数: 123/135页
文件大小: 0K
描述: MCU PIC 4K FLASH 20-DIP
产品培训模块: 8-bit PIC® Microcontroller Portfolio
标准包装: 22
系列: PIC® XLP™ 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 16MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 17
程序存储器容量: 7KB(4K x 14)
程序存储器类型: 闪存
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.6 V
数据转换器: A/D 12x8b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-DIP(0.300",7.62mm)
包装: 管件
PIC16(L)F720/721
DS41430C-page 88
Preliminary
2010-2011 Microchip Technology Inc.
REGISTER 10-1:
FVRCON: FIXED VOLTAGE REFERENCE REGISTER
R-q
R/W-0
U-0
R/W-0
FVRRDY
FVREN
TSEN
TSRNG
ADFVR1
ADFVR0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
q = Value depends on condition
bit 7
FVRRDY(1): Fixed Voltage Reference Ready Flag bit
0 = Fixed Voltage Reference output is not active or stable
1 = Fixed Voltage Reference output is ready for use
bit 6
FVREN: Fixed Voltage Reference Enable bit
0 = Fixed Voltage Reference is disabled
1 = Fixed Voltage Reference is enabled
bit 5
TSEN: Temperature Indicator Enable bit(3)
0 = Temperature indicator is disabled
1 = Temperature indicator is enabled
bit 4
TSRNG: Temperature Indicator Range Selection bit(3)
1 =VOUT = VDD - 4VT (High Range)
0 =VOUT = VDD - 2VT (Low Range)
bit 3-2
Unimplemented: Read as ‘0’
bit 1-0
ADFVR<1:0>: A/D Converter Fixed Voltage Reference Selection bits
00 = A/D Converter Fixed Voltage Reference Peripheral output is off
01 = A/D Converter Fixed Voltage Reference Peripheral output is 1x (1.024V)
10 = A/D Converter Fixed Voltage Reference Peripheral output is 2x (2.048V)(2)
11 = A/D Converter Fixed Voltage Reference Peripheral output is 4x (4.096V)(2)
Note 1:
FVRRDY is always ‘1’ for the PIC16F720/721 devices.
2:
Fixed Voltage Reference output cannot exceed VDD.
3:
TABLE 10-2:
SUMMARY OF ASSOCIATED FIXED VOLTAGE REFERENCE REGISTERS
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on Page
FVRCON
FVRRDY
FVREN
TSEN
TSRNG
ADFVR1
ADFVR0
Legend: x = unknown, u = unchanged, — = unimplemented read as ‘0’, q = value depends on condition. Shaded
cells are not used for ADC module.
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