參數(shù)資料
型號： AT90S4433-8AC
廠商： Atmel
文件頁數(shù)： 111/126頁
文件大小： 0K
描述： IC MCU 4K FLSH 8MHZ A/D 32TQFP
標準包裝： 250
系列： AVR® 90S
核心處理器： AVR
芯體尺寸： 8-位
速度： 8MHz
連通性： SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復位，POR，PWM，WDT
輸入/輸出數(shù)： 20
程序存儲器容量： 4KB（2K x 16）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量： 128 x 8
電壓 - 電源 (Vcc/Vdd)： 4 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 6x10b
振蕩器型： 外部
工作溫度： 0°C ~ 70°C
封裝/外殼： 32-TQFP
包裝： 托盤
85
AT90S/LS4433
1042H–AVR–04/03
Memory
Programming
Program and Data
Memory Lock Bits
The AT90S4433 MCU provides two Lock bits, which can be left unprogrammed (“1”) or
can be programmed (“0”) to obtain the additional features listed in Table 28. The Lock
bits can only be erased with the Chip Erase command.
Note:
1. In Parallel mode, programming of the Fuse bits are also disabled. Program the Fuse
bits before programming the Lock bits.
Fuse Bits
The AT90S4433 has six Fuse bits, SPIEN, BODLEVEL, BODEN and CKSEL2..0.
When the SPIEN Fuse is programmed (“0”), Serial Program and Data Downloading
is enabled. Default value is programmed (“0”). This bit is not accessible in Serial
Programming mode.
The BODLEVEL Fuse selects the Brown-out Detection Level and changes the start-
up times. See “Brown-out Detection” on page 25. Default value is unprogrammed
(“1”).
When the BODEN Fuse is programmed (“0”), the Brown-out Detector is enabled.
See “Brown-out Detection” on page 25. Default value is unprogrammed (“1”).
CKSEL2..0: See Table 5 on page 23 for which combination of CKSEL2..0 to use.
Default value is “010”.
Signature Bytes
All Atmel microcontrollers have a 3-byte signature code that identifies the device. This
code can be read in both serial and parallel mode. The three bytes reside in a separate
address space.
For the AT90S4433(1) they are:
1.
$000: $1E (indicates manufactured by Atmel)
2.
$001: $92 (indicates 4 KB Flash memory)
3.
$002: $03 (indicates AT90S4433 device when signature byte $001 is $92)
Note:
1. When both Lock bits are programmed (Lock mode 3), the signature bytes cannot be
read in Serial mode. Reading the signature bytes will return $00, $01 and $02.
Table 28. Lock Bit Protection Modes
Memory Lock Bits
Protection Type
Mode
LB1
LB2
1
No memory lock features enabled.
2
0
1
Further programming of the Flash and EEPROM is disabled.
3
0
Same as mode 2, and verify is also disabled.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT90S4433-8AI 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit AVR Microcontroller with 4K Bytes of In-System Programmable Flash
AT90S4433-8PC 功能描述:8位微控制器 -MCU 8 bit 4k byte 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 安裝風格:SMD/SMT
AT90S4433-8PI 功能描述:8位微控制器 -MCU 4K Flash 3V 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 安裝風格:SMD/SMT
AT90S4434 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
AT90S4434-8AC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
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