参数资料
型号: PIC16LF721-I/P
厂商: Microchip Technology
文件页数: 79/135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 48
Preliminary
2010-2011 Microchip Technology Inc.
REGISTER 6-1:
PORTA: PORTA REGISTER
U-0
R/W-x/u
RA5
RA4
RA3(1)
RA2
RA1
RA0
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
bit 7-6
Unimplemented: Read as ‘0’
bit 5-0
RA<5:0>: PORTA I/O Pin bit
1 = Port pin is > VIH
0 = Port pin is < VIL
Note 1:
RA<3> is input only.
REGISTER 6-2:
TRISA: PORTA TRI-STATE REGISTER
U-0
R/W-1
U-1
R/W-1
TRISA5
TRISA4
(1)
TRISA2
TRISA1
TRISA0
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
bit 7-6
Unimplemented: Read as ‘0’
bit 5-4
TRISA<5:4>: PORTA Tri-State Control bit
1 = PORTA pin configured as an input (tri-stated)
0 = PORTA pin configured as an output
bit 3
Unimplemented: Read as ‘1’
bit 2-0
TRISA<2:0>: PORTA Tri-State Control bit
1 = PORTA pin configured as an input (tri-stated)
0 = PORTA pin configured as an output
Note 1:
TRISA<3> is unimplemented and read as 1.
REGISTER 6-3:
WPUA: WEAK PULL-UP PORTA REGISTER
U-0
R/W-1
—WPUA5
WPUA4
WPUA3(2)
WPUA2
WPUA1
WPUA0
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
bit 7-6
Unimplemented: Read as ‘0’
bit 5-0
WPUA<5:0>: Weak Pull-up PORTA Control bits
1 =
Weak pull-up enabled(1)
0 =
Weak pull-up disabled
Note 1: Enabling weak pull-ups also requires that the RABPU bit of the OPTION_REG register be cleared.
2: If MCLREN = 1, WPUA3 is always enabled.
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