參數(shù)資料
型號： ATTINY43U-SU
廠商： Atmel
文件頁數(shù)： 48/158頁
文件大?。?/td> 0K
描述： MCU AVR 4K FLASH 8MHZ 20-SOIC
產(chǎn)品培訓(xùn)模塊： ATtiny43U Overview
MCU Product Line Introduction
tinyAVR Introduction
標(biāo)準(zhǔn)包裝： 37
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
程序存儲器容量： 4KB（2K x 16）
程序存儲器類型： 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： 管件
產(chǎn)品目錄頁面： 613 (CN2011-ZH PDF)
配用： ATSTK600-TINYX3U-ND - STK600 SOCKET/ADAPTER TINYX3U
141
8048C–AVR–02/12
ATtiny43U
19. Memory Programming
This section describes the different methods for Programming the ATtiny43U memories.
19.1
Program And Data Memory Lock Bits
The ATtiny43U provides two Lock bits which can be left unprogrammed (“1”) or can be pro-
grammed (“0”) to obtain the additional security listed in Table 19-2 on page 141. The Lock bits
can only be erased to “1” with the Chip Erase command.
The device has no separate boot loader section. The SPM instruction is enabled for the whole
Flash, if the SELFPROGEN fuse is programmed (“0”), otherwise it is disabled.
Program memory can be read out via the debugWIRE interface when the DWEN fuse is pro-
grammed, even if lock bits are set. Thus, when lock bit security is required, debugWIRE should
always be disabled by clearing the DWEN fuse.
Note:
1. “1” means unprogrammed, “0” means programmed
Notes:
1. Program fuse bits before programming LB1 and LB2.
2. “1” means unprogrammed, “0” means programmed
Lock bits can also be read by device firmware. See section “Reading the Fuse and Lock Bits
Table 19-1.
Lock Bit Byte
Lock Bit Byte
Bit No
Description
Default Value
7
–
1 (unprogrammed)
6
–
1 (unprogrammed)
5
–
1 (unprogrammed)
4
–
1 (unprogrammed)
3
–
1 (unprogrammed)
2
–
1 (unprogrammed)
LB2
1
Lock bit
1 (unprogrammed)
LB1
0
Lock bit
1 (unprogrammed)
Table 19-2.
Lock Bit Protection Modes.
Memory Lock Bits
Protection Type
LB Mode
LB2
LB1
1
No memory lock features enabled.
21
0
Further programming of the Flash and EEPROM is disabled in
High-voltage and Serial Programming mode. The Fuse bits are
locked in both Serial and High-voltage Programming mode.
debugWire is disabled.
30
0
Further programming and verification of the Flash and EEPROM
is disabled in High-voltage and Serial Programming mode. The
Fuse bits are locked in both Serial and High-voltage
Programming mode.
(1) debugWire is disabled.
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參數(shù)描述
ATTINY43U-SUR 功能描述:8位微控制器 -MCU 4KB FLSH 64B EE 256B SRAM-8MHz, IND 0.9V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ATTINY44 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
ATTINY44-15MZ 功能描述:8位微控制器 -MCU 4KB Flash 15MHz Auto 125-degrees C RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ATTINY44-15SSZ 功能描述:8位微控制器 -MCU 4KB Flash 15MHz Auto 125-degrees C RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ATTINY441-MMH 制造商:Atmel Corporation 功能描述:16MHZ, 3X3MM, 20 VQFN, IND. GRADE, GREEN - Bulk 制造商:Atmel Corporation 功能描述:IC MCU 8BIT 4KB FLASH 20VQFN
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