參數(shù)資料
型號(hào)： ST7FLIT19BF1U6TR
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, QCC20
封裝： LEAD FREE, QFN-20
文件頁數(shù)： 39/153頁
文件大小： 2862K
代理商： ST7FLIT19BF1U6TR
ST7LITE1xB
133/153
CONTROL PIN CHARACTERISTICS (Cont’d)
Figure 104. RESET pin protection when LVD is enabled.1)2)3)4)
Figure 105. 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 13.9.1 on page 132. 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 105 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)
相關(guān)PDF資料
PDF描述
ST7FLITE09Y0M1 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16
ST7FLU05MAE 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8
ST7LNB0V2Y0M6 8-BIT, 8 MHz, MICROCONTROLLER, PDSO16
ST7LNB1Y0M6 8-BIT, EEPROM, 8 MHz, MICROCONTROLLER, PDSO16
ST7PL05Y0MB/XXXTRE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST7FLIT19BU6TR 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
ST7FLIT19BY0B6 功能描述:8位微控制器 -MCU ST7LITE1xB 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
ST7FLIT19BY0BX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI
ST7FLIT19BY0M6 功能描述:8位微控制器 -MCU ST7LITE1xB 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
ST7FLIT19BY0MX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*