參數(shù)資料
型號(hào): ATTINY43U-SUR
廠商: Atmel
文件頁數(shù): 49/158頁
文件大?。?/td> 0K
描述: MCU AVR 4KB FLASH 8MHZ 20SOIC
產(chǎn)品培訓(xùn)模塊: tinyAVR Introduction
標(biāo)準(zhǔn)包裝: 1,000
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 8MHz
連通性: USI
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 16
程序存儲(chǔ)器容量: 4KB(2K x 16)
程序存儲(chǔ)器類型: 閃存
EEPROM 大小: 64 x 8
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 帶卷 (TR)
其它名稱: ATTINY43U-SUR-ND
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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