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参数资料
| 型号： | ST7FLITEUS5M6 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8 |
| 封装： | 0.150 INCH, LEAD FREE, PLASTIC, SOP-8 |
| 文件页数： | 95/108页 |
| 文件大小： | 1957K |
| 代理商： | ST7FLITEUS5M6 |
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ST7LITEUSx
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CONTROL PIN CHARACTERISTICS (Cont’d)
Figure 62. RESET pin protection when LVD is enabled.1)2)3)4)
Figure 63. RESET pin protection when LVD is disabled.1)
Note 1:
– The reset network protects the device against parasitic resets.
– The output of the external reset circuit must have an open-drain output to drive the ST7 reset pad. Otherwise the
device can be damaged when the ST7 generates an internal reset (LVD or watchdog).
– Whatever the reset source is (internal or external), the user must ensure that the level on the RESET pin can go
below the VIL max. level specified in section 12.9.1 on page 86. Otherwise the reset will not be taken into account
internally.
– Because the reset circuit is designed to allow the internal RESET to be output in the RESET pin, the user must en-
sure that the current sunk on the RESET pin is less than the absolute maximum value specified for IINJ(RESET) in
Note 2: When the LVD is enabled, it is recommended not to connect a pull-up resistor or capacitor. A 10nF pull-down
capacitor is required to filter noise on the reset line.
Note 3: In case a capacitive power supply is used, it is recommended to connect a 1M
pull-down resistor to the RESET
pin to discharge any residual voltage induced by the capacitive effect of the power supply (this will add 5A to the power
consumption of the MCU).
Note 4: Tips when using the LVD:
– 1. Check that all recommendations related to ICCCLK and reset circuit have been applied (see caution in Table 1
on page 7 and notes above)
– 2. Check that the power supply is properly decoupled (100nF + 10F close to the MCU). Refer to AN1709 and
AN2017. If this cannot be done, it is recommended to put a 100nF + 1M
pull-down on the RESET pin.
– 3. The capacitors connected on the RESET pin and also the power supply are key to avoid any start-up marginality.
In most cases, steps 1 and 2 above are sufficient for a robust solution. Otherwise: replace 10nF pull-down on the
RESET pin with a 5F to 20F capacitor.”
Note 5: Please refer to “Illegal Opcode Reset” on page 64 for more details on illegal opcode reset conditions
0.01
F
ST72XXX
PULSE
GENERATOR
Filter
RON
VDD
INTERNAL
RESET
EXTERNAL
Required
1M
Optional
(note 3)
WATCHDOG
LVD RESET
ILLEGAL OPCODE 5)
0.01
F
EXTERNAL
RESET
CIRCUIT
USER
Required
ST72XXX
PULSE
GENERATOR
Filter
RON
VDD
INTERNAL
RESET
WATCHDOG
ILLEGAL OPCODE 5)
1
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相关代理商/技术参数 |
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| ST7FLITEUS5M6TR | 功能描述:8位微控制器 -MCU ST7ULTRALITE 8B MCU SINGLE Vltg FLASH RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ST7FLITEUS5U3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU with single voltage Flash memory, ADC, timers |
| ST7FLITEUS5U3TR | 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ST7FLITEUS5U6 | 制造商:STMicroelectronics 功能描述:8 BITS MICROCONTR - Bulk |
| ST7FLITEUS5U6/TR | 功能描述:MCU 8BIT 1KB FLASH 128KB 8-DFN RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:ST7 标准包装:96 系列:PIC® 16F 核心处理器:PIC 芯体尺寸:8-位 速度:20MHz 连通性:I²C，SPI 外围设备:欠压检测/复位，POR，PWM，WDT 输入/输出数:11 程序存储器容量:3.5KB（2K x 14） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:128 x 8 电压 - 电源 (Vcc/Vdd):2.3 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 包装:管件 |
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