参数资料
型号: PIC16F872-E/SO
厂商: Microchip Technology
文件页数: 48/167页
文件大小: 0K
描述: IC MCU CMOS 20MHZ 2K FLSH 28SOIC
产品培训模块: Asynchronous Stimulus
标准包装: 27
系列: PIC® 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
连通性: I²C,SPI
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 22
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 5.5 V
数据转换器: A/D 5x10b
振荡器型: 外部
工作温度: -40°C ~ 125°C
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
包装: 管件
142
8048C–AVR–02/12
ATtiny43U
19.2
Fuse Bytes
The ATtiny43U has three Fuse bytes. Table 19-3, Table 19-4 and Table 19-5 briefly describe the
functionality of all the fuses and how they are mapped into the Fuse bytes. Note that the fuses
are read as logical zero, “0”, if they are programmed..
Notes:
1. Enables SPM instruction. See “Self-Programming the Flash” on page 135.
Notes:
1. See “Alternate Functions of Port B” on page 75 for description of RSTDISBL and DWEN
Fuses. When RSTDISBL fuse has been programmed, parallel programming must be used for
unprogramming the fuse and programming the device.
2. DWEN must be unprogrammed when Lock Bit security is required. See “Program And Data
3. The SPIEN Fuse is not accessible in SPI Programming mode.
details.
5. See Table 20-5 on page 161 for BODLEVEL Fuse decoding.
Table 19-3.
Fuse Extended Byte
Fuse High Byte
Bit No
Description
Default Value
7
-
1 (unprogrammed)
6
-
1 (unprogrammed)
5
-
1 (unprogrammed)
4
-
1 (unprogrammed)
3
-
1 (unprogrammed)
2
-
1 (unprogrammed)
1
-
1 (unprogrammed)
0
Self-Programming Enable
1 (unprogrammed)
Table 19-4.
Fuse High Byte
Fuse High Byte
Bit No
Description
Default Value
RSTDISBL(1)
7
External Reset disable
1 (unprogrammed)
DWEN(2)
6
DebugWIRE Enable
1 (unprogrammed)
SPIEN(3)
5
Enable Serial Program and Data
Downloading
0 (programmed, SPI prog.
enabled)
WDTON(4)
4
Watchdog Timer always on
1 (unprogrammed)
EESAVE
3
EEPROM memory is preserved
through the Chip Erase
1 (unprogrammed,
EEPROM not preserved)
BODLEVEL2(5)
2
Brown-out Detector trigger level
1 (unprogrammed)
BODLEVEL1(5)
1
Brown-out Detector trigger level
1 (unprogrammed)
BODLEVEL0(5)
0
Brown-out Detector trigger level
1 (unprogrammed)
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PIC16F872-I/SO 制造商:Microchip Technology Inc 功能描述:8BIT FLASH MCU SMD 16F872 SOIC28
PIC16F872-I/SOG 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O Lead Free Package RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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