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ST72561AR7-Auto Datasheet(PDF) 292 Page - STMicroelectronics

Part # ST72561AR7-Auto
Description  Clock, reset and supply management
PDF  324 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72561AR7-Auto Datasheet(HTML) 292 Page - STMicroelectronics

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Electrical characteristics
ST72561-Auto
292/324
Doc ID 12370 Rev 8
Tips when using the LVD
1.
Check that all recommendations related to reset circuit have been applied (see RESET
circuit design recommendations)
2.
Check that the power supply is properly decoupled (100nF + 10µF close to the MCU).
Refer to AN1709. If this cannot be done, it is recommended to put a 100 nF + 1M
Ω pull-
down on the RESET pin.
3.
The capacitors connected on the RESET pin and also the power supply are key to
avoiding 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 5 µF to
20 µF capacitor.
Figure 137. RESET RPU vs VDD
20.10.2
ICCSEL/ VPP pin
Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.
Figure 138. Two typical applications with ICCSEL/VPP pin
1.
When ICC mode is not required by the application ICCSEL/VPP pin must be tied to VSS.
3.5
4
4.5
5
5.5
Vdd
0
20
40
60
80
100
Ta=-45C
Ta=25C
Ta=130C
Table 116.
ICCSEL/VPP pin characteristics
Symbol
Parameter
Conditions
Min
Max
Unit
VIL
Input low level voltage(1)
1.
Data based on design simulation and/or technology characteristics, not tested in production.
VSS
0.2
V
VIH
Input high level voltage(1)
VDD-0.1
12.6
IL
Input leakage current
VIN =VSS
±1
µA
ICCSEL/VPP
ST72XXX
10k
Ω
PROGRAMMING
TOOL
VPP
ST72XXX



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