參數(shù)資料
型號： AT90S1200-12PI
廠商： Atmel
文件頁數(shù)： 37/71頁
文件大?。?/td> 0K
描述： IC MCU 1K FLSH 12MHZ IT 20DIP
標準包裝： 18
系列： AVR® 90S
核心處理器： AVR
芯體尺寸： 8-位
速度： 12MHz
連通性： SPI
外圍設備： POR，WDT
輸入/輸出數(shù)： 15
程序存儲器容量： 1KB（512 x 16）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 64 x 8
電壓 - 電源 (Vcc/Vdd)： 4 V ~ 6 V
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 20-DIP（0.300"，7.62mm）
包裝： 管件
42
AT90S1200
0838H–AVR–03/02
Programming the EEPROM
The programming algorithm for the EEPROM data memory is as follows (refer to “Pro-
gramming the Flash” for details on command, address and data loading):
1.
A: Load Command “0001 0001”.
2.
C: Load Address Low Byte ($00 - $3F).
3.
D: Load Data Low Byte ($00 - $FF).
4.
E: Write Data Low Byte.
Reading the EEPROM
The algorithm for reading the EEPROM memory is as follows (refer to “Programming the
Flash” for details on command and address loading):
1.
A: Load Command “0000 0011”.
2.
C: Load Address Low Byte ($00 - $3F).
3.
Set OE to “0”, and BS to “0”. The EEPROM data byte can now be read at DATA.
4.
Set OE to “1”.
Programming the Fuse Bits
The algorithm for programming the Fuse bits is as follows (refer to “Programming the
Flash” for details on command and data loading):
1.
A: Load Command “0100 0000”.
2.
D: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
Bit 5 = SPIEN Fuse
Bit 0 = RCEN Fuse
Bit 7 - 6, 4 - 1 = “1”. These bits are reserved and should be left unprogrammed (“1”).
3.
Give WR a t
WLWH_PFB wide negative pulse to execute the programming; tWLWH_PFB
is found in Table 17. Programming the Fuse bits does not generate any activity
on the RDY/BSY pin.
Programming the Lock Bits
The algorithm for programming the Lock bits is as follows (refer to “Programming the
Flash” for details on command and data loading):
1.
A: Load Command “0010 0000”.
2.
D: Load Data Low Byte. Bit n = “0” programs the Lock bit.
Bit 2 = Lock Bit2
Bit 1 = Lock Bit1
Bit 7 - 3, 0 = “1”. These bits are reserved and should be left unprogrammed (“1”).
3.
E: Write Data Low Byte.
The Lock bits can only be cleared by executing Chip Erase.
Reading the Fuse and Lock
Bits
The algorithm for reading the Fuse and Lock bits is as follows (refer to “Programming
the Flash” on page 39 for details on command loading):
1.
A: Load Command “0000 0100”.
2.
Set OE to “0”, and BS to “1”. The status of Fuse and Lock bits can now be read
at DATA (“0” means programmed).
Bit 7 = Lock Bit1
Bit 6 = Lock Bit2
Bit 5 = SPIEN Fuse
Bit 0 = RCEN Fuse
3.
Set OE to “1”.
Observe especially that BS needs to be set to “1”.
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相關代理商/技術參數(shù)
參數(shù)描述
AT90S1200-12SC 功能描述:8位微控制器 -MCU 1K Flash 5V 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
AT90S1200-12SI 功能描述:8位微控制器 -MCU 1k bit 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
AT90S1200-12YC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 1K Byte of In-System Programmable Flash
AT90S1200-12YI 功能描述:8位微控制器 -MCU 1K 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
AT90S1200-4PC 功能描述:8位微控制器 -MCU 1K 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
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