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参数资料
| 型号： | STR911FAW32X6T |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 96 MHz, RISC MICROCONTROLLER, QFP128 |
| 封装： | LQFP-128 |
| 文件页数： | 18/100页 |
| 文件大小： | 1801K |
| 代理商： | STR911FAW32X6T |
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Functional overview
STR91xFAxxx
Mode. 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
3.12
Voltage supplies
The STR91xFA 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.
In Standby mode, both VDD and VDDQ must be shut down. Otherwise the specified
maximum power consumption for Standby mode (IRTC_STBY and ISRAM_STBY) may be
exceeded. Leakage may occur if only one of the voltage supplies is off.
3.12.1
Independent A/D converter supply and reference voltage
The ADC unit on 128-pin and 144-ball packages has an isolated analog voltage supply input
at pin AVDD to accept a very clean voltage source, independent of the digital voltage
supplies. Additionally, an isolated analog supply ground connection is provided on pin AVSS
only on 128-pin and 144-ball packages for further ADC supply isolation. On 80-pin
packages, the analog voltage supply is shared with the ADC reference voltage pin (as
described next), and the analog ground is shared with the digital ground at a single point in
the STR91xFA device on pin AVSS_VSSQ.
A separate external analog reference voltage input for the ADC unit is available on 128-pin
and 144-ball packages at the AVREF pin for better accuracy on low voltage inputs. For 80-
pin packages, the ADC reference voltage is tied internally to the ADC unit supply voltage at
pin AVREF_AVDD, meaning the ADC reference voltage is fixed to the ADC unit supply
voltage.
See Table 11: Operating conditions, for restrictions to the relative voltage levels of VDDQ,
AVDD, AVREF, and AVREF_AVDD.
3.12.2
Battery supply
An optional stand-by voltage from a battery or other source may be connected to pin VBATT
to retain the contents of SRAM in the event of a loss of the main digital supplies (VDD and
VDDQ) . The SRAM will automatically switch its supply from the internal VDD source to the
VBATT pin when the voltage of VDD drops below the LVD threshold. In order to use the
battery supply, the LVD must be enabled.
The VBATT pin also supplies power to the RTC unit, allowing the RTC to function even when
the main digital supplies (VDD and VDDQ) are switched off. By configuring the RTC register,
it is possible to select whether or not to power from VBATT only the RTC unit, or power the
RTC unit and the SRAM when the STR91xFA device is powered off.
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相关代理商/技术参数 |
参数描述 |
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| STR911FAW34H6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR911FAW34X6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR911FAW42 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR911FAW42H6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR911FAW42X6 | 功能描述:ARM微控制器 - MCU ARM966E S 16/32B Flash MCU RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
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