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參數(shù)資料
型號： AT90S2313-10PC
廠商： Atmel
文件頁數(shù)： 33/92頁
文件大?。?/td> 0K
描述： IC MCU 2K FLSH 10MHZ UART 20DIP
標準包裝： 18
系列： AVR® 90S
核心處理器： AVR
芯體尺寸： 8-位
速度： 10MHz
連通性： SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 15
程序存儲器容量： 2KB（1K x 16）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 128 x 8
RAM 容量： 128 x 8
電壓 - 電源 (Vcc/Vdd)： 4 V ~ 6 V
振蕩器型： 外部
工作溫度： 0°C ~ 70°C
封裝/外殼： 20-DIP（0.300"，7.62mm）
包裝： 管件
39
AT90S2313
0839I–AVR–06/02
EEPROM Read/Write
Access
The EEPROM Access Registers are accessible in the I/O space.
The write access time is in the range of 2.5 - 4 ms, depending on the VCC voltages. A
self-timing function, however, lets the user software detect when the next byte can be
written. If the user code contains code that writes the EEPROM, some precaution must
be taken. In heavily filtered power supplies, VCC is likely to rise or fall slowly on Power-
up/down. This causes the device for some period of time to run at a voltage lower than
specified as minimum for the clock frequency used. CPU operation under these condi-
tions may cause the Program Counter to perform unintentional jumps and eventually
execute the EEPROM write code. To secure EEPROM integrity, the user is advised to
use an external under-voltage reset circuit in this case.
In order to prevent unintentional EEPROM writes, a specific write procedure must be fol-
lowed. Refer to the description of the EEPROM Control Register for details on this.
When the EEPROM is written, the CPU is halted for two clock cycles before the next
instruction is executed. When the EEPROM is read, the CPU is halted for four clock
cycles before the next instruction is executed.
EEPROM Address Register –
EEAR
Bit 7 – Res: Reserved Bit
This bit is a reserved bit in the AT90S2313 and will always read as zero.
Bit 6..0 – EEAR6..0: EEPROM Address
The EEPROM Address Register (EEAR6..0) specifies the EEPROM address in the 128
bytes EEPROM space. The EEPROM data bytes are addressed linearly between 0 and
127.
EEPROM Data Register –
EEDR
Bit 7..0 – EEDR7..0: EEPROM Data
For the EEPROM write operation, the EEDR Register contains the data to be written to
the EEPROM in the address given by the EEAR Register. For the EEPROM read oper-
ation, the EEDR contains the data read out from the EEPROM at the address given by
EEAR.
Bit
7654
3210
$1E ($3E)
–
EEAR6
EEAR5
EEAR4
EEAR3
EEAR2
EEAR1
EEAR0
EEAR
Read/Write
R
R/W
Initial value
0000
Bit
7654
3210
$1D ($3D)
MSB
LSB
EEDR
Read/Write
R/W
Initial value
0000
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參數(shù)描述
AT90S2313-10PI 功能描述:8位微控制器 -MCU 2k 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(fēng)格:SMD/SMT
AT90S2313-10SC 功能描述:8位微控制器 -MCU 2K 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(fēng)格:SMD/SMT
AT90S231310SCSL383 制造商:Atmel Corporation 功能描述:
AT90S2313-10SI 功能描述:8位微控制器 -MCU 2K 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(fēng)格:SMD/SMT
AT90S2313-4PC 功能描述:8位微控制器 -MCU 2K 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(fēng)格:SMD/SMT
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