參數(shù)資料
型號(hào): ATTINY43U-SUR
廠商: Atmel
文件頁數(shù): 50/158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/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?。?/td> 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
143
8048C–AVR–02/12
ATtiny43U
Notes:
2. The default value of SUT[1:0] results in maximum start-up time for the default clock source.
See Table 6-5 on page 26 for details.
3. The default setting of CKSEL[3:0] results in internal RC Oscillator @ 8.0 MHz. See Table 6-4
on page 25 for details.
Note that fuse bits are locked if Lock Bit 1 (LB1) is programmed. Fuse bits should be pro-
grammed before lock bits. The status of fuse bits is not affected by chip erase.
Fuse bits can also be read by device firmware. See section “Reading the Fuse and Lock Bits
19.2.1
Latching of Fuses
Fuse values are latched when the device enters programming mode and changes to fuse values
have no effect until the part leaves programming mode. This does not apply to the EESAVE
Fuse which will take effect once it is programmed. Fuses are also latched on power-up.
19.3
Device Signature Imprint Table
The device signature imprint table is a dedicated memory area used for storing miscellaneous
device information, such as the device signature and oscillator calibaration data. Most of this
memory segment is reserved for internal use, as outlined in Table 19-6.
Notes:
1. See section “Signature Bytes” for more information.
2. See section “Calibration Byte” for more information.
Table 19-5.
Fuse Low Byte
Fuse Low Byte
Bit No
Description
Default Value
7
Divide clock by 8
0 (programmed)
CKOUT
6
Clock Output Enable
1 (unprogrammed)
SUT1
5
Select start-up time
1 (unprogrammed)(2)
SUT0
4
Select start-up time
0 (programmed)(2)
CKSEL3
3
Select Clock source
0 (programmed)(3)
CKSEL2
2
Select Clock source
0 (programmed)(3)
CKSEL1
1
Select Clock source
1 (unprogrammed)(3)
CKSEL0
0
Select Clock source
0 (programmed)(3)
Table 19-6.
Contents of Device Signature Imprint Table.
Address
High Byte
0x00
Signature byte 0 (1)
0x01
Calibration data for internal oscillator (2)
0x02
Signature byte 1 (1)
0x03
Reserved for internal use
0x04
Signature byte 2 (1)
0x05 ... 0x2A
Reserved for internal use
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