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STM6321 数据表(PDF) 19 Page - STMicroelectronics |
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STM6321 数据表(HTML) 19 Page - STMicroelectronics |
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19 / 28 page ![]() STM6321/6322STM6821/6822/6823/6824/6825 DC and AC parameters 19/28 5 DC and AC parameters This section summarizes the operating measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC characteristics tables that follow, are derived from tests performed under the measurement conditions summarized in Table 5. Designers should check that the operating conditions in their circuit match the operating conditions when relying on the quoted parameters. Table 5. Operating and AC measurement conditions Figure 24. AC testing input/output waveforms Figure 25. MR timing waveform 1. RST for STM6322/6821/6825. Figure 26. Watchdog timing Parameter STM6xxx Unit VCC supply voltage 1.0 to 5.5 V Ambient operating temperature (TA)–40 to 85 °C Input rise and fall times ≤ 5ns Input pulse voltages 0.2 to 0.8VCC V Input and output timing ref. voltages 0.3 to 0.7VCC V AI02568 0.8VCC 0.2VCC 0.7VCC 0.3VCC AI07837a RST (1) MR tMLRL trec tMLMH AI09136 RST WDI VCC trec tWD |
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