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參數(shù)資料
| 型號： | ST62T65CN6 |
| 英文描述： | IC-SM-8-BIT MCU 4K OTP |
| 中文描述： | 集成電路釤8位微控制器4K的檢察官辦公室 |
| 文件頁數(shù)： | 21/82頁 |
| 文件大小： | 870K |
| 代理商： | ST62T65CN6 |
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ST62T18C/E18C
RESETS
(Cont’d)
3.2.3 Watchdog Reset
The MCU provides a Watchdog timer function in
order to ensure graceful recovery from software
upsets. If the Watchdog register is not refreshed
before an end-of-count condition is reached, the
internal reset will be activated. This, amongst oth-
er things, resets the watchdog counter.
The MCU restarts just as though the Reset had
been generated by the RESET pin, including the
built-in stabilisation delay period.
3.2.4 LVD Reset
The on-chip Low Voltage Detector, selectable as
user option, features static Reset when supply
voltage is below a reference value. Thanks to this
feature, external reset circuit can be removed
while keeping the application safety. This SAFE
RESET is effective as well in Power-on phase as
in power supply drop with different reference val-
ues, allowing hysteresis effect. Reference value in
case of voltage drop has been set lower than the
reference value for power-on in order to avoid any
parasitic Reset when MCU start's running and
sinking current on the supply.
As long as the supply voltage is below the refer-
ence value, there is a internal and static RESET
command. The MCU can start only when the sup-
ply voltage rises over the reference value. There-
fore, only two operating mode exist for the MCU:
RESET active below the voltage reference, and
running mode over the voltage reference as
shown on the
Figure 14
, that represents a power-
up, power-down sequence.
Note
: When the RESET state is controlled by one
of the internal RESET sources (Low Voltage De-
tector, Watchdog, Power on Reset), the RESET
pin is tied to low logic level.
Figure 14. LVD Reset on Power-on and Power-down (Brown-out)
3.2.5 Application Notes
No external resistor is required between V
DD
and
the Reset pin, thanks to the built-in pull-up device.
Direct external connection of the pin RESET to
V
DD
must be avoided in order to ensure safe be-
haviour of the internal reset sources (AND.Wired
structure).
RESET
RESET
VR02106A
time
V
Up
V
dn
V
DD
21
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| ST62T80BQ6 | 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI/UAR 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| ST62T85BQ6 | 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI/UAR 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| ST63/69/23 | 制造商:Block 功能描述:Control panel transformer, 63VA, 230V |
| ST6-30 | 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:POWER TRANSFORMER |
| ST630/69/23 | 制造商:Block USA Inc. 功能描述:Control panel transformer, 630VA, 230V |
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