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參數(shù)資料
| 型號： | STR912FW42X6T |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | ADC |
| 英文描述： | ARM966E-S 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC Motor Control, 4 Timers, ADC, RTC, DMA |
| 中文描述： | ARM966E - ? 16/32位閃存微控制器與以太網(wǎng)，USB，加拿大，交流電機控制，4個計時器，模數(shù)轉(zhuǎn)換器，RTC和DMA的 |
| 文件頁數(shù)： | 9/72頁 |
| 文件大?。?/td> | 664K |
| 代理商： | STR912FW42X6T |
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STR91xF
Functional overview
17/72
The STR91xF supports the following three global power control modes:
●
Run Mode: All clocks are on with option to gate individual clocks off via clock mask
registers.
●
Idle Mode: CPU and FMI clocks are off until an interrupt, reset, or wake-up occurs. Pre-
configured clock mask registers selectively allow individual peripheral clocks to continue
run during Idle Mode.
●
Sleep Mode: All clocks off except optional RTC clock. Wake up unit remains powered,
PLL is forced off.
A special mode is used when JTAG debug is active which never gates off any clocks even if the
CPU enters Idle or Sleep mode.
2.11.1 Run mode
This is the default mode after any reset occurs. Firmware can gate off or scale any individual
clock. Also available is a special Interrupt Mode which allows the CPU to automatically run full
speed during an interrupt service and return back to the selected CPU clock divisor rate when
the interrupt has been serviced. The advantage here is that the CPU can run at a very low
frequency to conserve power until a periodic wake-up event or an asynchronous interrupt
occurs at which time the CPU runs full speed immediately.
2.11.2 Idle mode
In this mode the CPU suspends code execution and the CPU and FMI clocks are turned off
immediately after firmware sets the Idle Bit. Various peripherals continue to run based on the
settings of the mask registers that exist just prior to entering Idle Mode. There are 3 ways to exit
Idle Mode and return to Run Mode:
●
Any reset (external reset pin, watchdog, low-voltage, power-up, JTAG debug command)
●
Any interrupt (external, internal peripheral, RTC alarm or interval)
●
Input from wake-up unit on GPIO pins (optionally does not cause interrupt)
Note:
It is possible to remain in Idle Mode for the majority of the time and the RTC can be
programmed to periodically wake up to perform a brief task or check status.
2.11.3 Sleep mode
In this mode all clock circuits except the RTC are turned off and main oscillator input pins
X1_CPU and X2_CPU are disabled. The entire chip is quiescent (except for RTC and wake-up
circuitry). There are three means to exit Sleep Mode and re-start the system:
●
Some resets (external reset pin, low-voltage, power-up, JTAG debug command)
●
RTC alarm
●
Input from wake-up unit
2.12
Voltage supplies
The STR91xF requires two separate operating voltage supplies. The CPU and memories
operate from a 1.65V to 2.0V on the VDD pins, and the I/O ring operates at 2.7V to 3.6V on the
VDDQ pins.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| STR912FW44X6 | 功能描述:ARM微控制器 - MCU TQFP 128 14x14x1.4 1 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| STR912FW44X6 | 制造商:STMicroelectronics 功能描述:512K Flash 96K sram Ethernet USB CAN |
| STR912FW44X6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR912FW92X6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR912FW94X6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
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