ST72361AR4-Auto datasheet(247/279 Pages) STMICROELECTRONICS

247 / 279 page

ST72361xx-Auto

Electrical characteristics

Doc ID 12468 Rev 3

247/279

Tips when using the LVD

Check that all recommendations related to reset circuit have been applied (see RESET

circuit design recommendations)

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

 pull-

down on the RESET pin.

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 114. RESET RPU vs VDD

19.10.2

ICCSEL/ VPP pin

Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.

Figure 115. Two typical applications with ICCSEL/VPP pin

When ICC mode is not required by the application ICCSEL/VPP pin must be tied to VSS.

3.5

4.5

5.5

Vdd

100

Ta=-45C

Ta=25C

Ta=130C

Table 108.

ICCSEL/VPP pin characteristics

Symbol

Parameter

Conditions

Min

Max

Unit

VIL

Input low level voltage(1)

Data based on design simulation and/or technology characteristics, not tested in production.

VSS

0.2

VIH

Input high level voltage(1)

VDD-0.1

12.6

Input leakage current

VIN =VSS

±1

µA

ICCSEL/VPP

ST72XXX

10k



PROGRAMMING

TOOL

VPP

ST72XXX

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