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| 型號(hào)： | ST7FLU05MAE |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8 |
| 封裝： | 0.150 INCH, LEAD FREE, PLASTIC, SOP-8 |
| 文件頁(yè)數(shù)： | 73/124頁(yè) |
| 文件大?。?/td> | 2186K |
| 代理商： | ST7FLU05MAE |
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Obsolete
Product(s)
- Obsolete
Product(s)
Power saving modes
ST7LUS5, ST7LU05, ST7LU09
52/124
Halt mode recommendations
●
Make sure that an external event is available to wake up the microcontroller from Halt
mode.
●
When using an external interrupt to wake up the microcontroller, re-initialize the
corresponding I/O as “input pull-up with interrupt” before executing the HALT
instruction. The main reason for this is that the I/O may be wrongly configured due to
external interference or by an unforeseen logical condition.
●
For the same reason, re-initialize the level sensitiveness of each external interrupt as a
precautionary measure.
●
The opcode for the HALT instruction is 0x8E. To avoid an unexpected HALT instruction
due to a program counter failure, it is advised to clear all occurrences of the data value
0x8E from memory. For example, avoid defining a constant in ROM with the value
0x8E.
●
As the HALT instruction clears the I bit in the CC register to allow interrupts, the user
may choose to clear all pending interrupt bits before executing the HALT instruction.
This avoids entering other peripheral interrupt routines after executing the external
interrupt routine corresponding to the wake-up event (reset or external interrupt).
8.5
Auto wake-up from halt mode
Auto Wake-up from Halt (AWUFH) mode is similar to halt mode with the addition of a
specific internal RC oscillator for wake-up (auto wake-up from halt oscillator) which replaces
the main clock which was active before entering halt mode. Compared to Active Halt mode,
AWUFH has lower power consumption (the main clock is not kept running), but there is no
accurate real-time clock available.
It is entered by executing the HALT instruction when the AWUEN bit in the AWUCSR
register has been set.
Figure 24.
AWUFH mode block diagram
AWU RC
AWUFH
fAWU_RC
AWUFH
(ei0 source)
oscillator
prescaler/1 .. 255
interrupt
/64
divider
to 8-bit timer input capture
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| ST7FLU09MCE | 制造商:STMicroelectronics 功能描述: |
| ST7FMC1K2B3 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI? |
| ST7FMC1K2B6 | 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| ST7FMC1K2T3 | 功能描述:8位微控制器 -MCU ST7MC1/ST7MC2 8B MCU 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| ST7FMC1K2T6 | 功能描述:8位微控制器 -MCU 8K Flash 384 RAM 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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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