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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST10F296 датащи(PDF) 216 Page - STMicroelectronics |
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ST10F296 датащи(HTML) 216 Page - STMicroelectronics |
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216 / 346 page  Obsolete Product(s) - Obsolete Product(s) System reset ST10F296E 216/346 Warning: It is recommended to provide the external hardware with a current limitation circuitry. This is necessary to avoid permanent damage to the device during the power-on transient, when the capacitance on V18 pin is charged. For the on-chip voltage regulator functionality, 10 nF is sufficient. A maximum of 100 nF on the V18 pin should not generate problems of overcurrent (a higher value is allowed if the current is limited by the external hardware). External current limitation is also recommended to avoid risks of damage in case of temporary shorts between V18 and ground. The internal 1.8 V drivers are sized to drive currents of several tens of ampere, so, the current must be limited by the external hardware. The current limit is imposed by power dissipation considerations (refer to Section 24: Electrical characteristics). Figure 75 and Figure 76 show the asynchronous power-on timing diagrams with boot from internal or external memory respectively. The reset phase extension that is introduced by the embedded Flash module, is highlighted. Note: Never power the device without keeping the RSTIN pin grounded as the device could enter unpredictable states which could permanently damage it. Obsolete Product(s) - Obsolete Product(s) |
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