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ST10F276Z5 数据表(PDF) 117 Page - STMicroelectronics |
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ST10F276Z5 数据表(HTML) 117 Page - STMicroelectronics |
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117 / 239 page  ST10F276Z5 System reset 117/239 Figure 30. Synchronous long hardware RESET (EA = 1) 1. If during the reset condition (RSTIN low), RPD voltage drops below the threshold voltage (around 2.5 V for 5 V operation), the asynchronous reset is then immediately entered. If RPD returns above the threshold, the reset is definitively taken as asynchronous. 2. Minimum RSTIN low pulse duration shall also be longer than 500ns to guarantee the pulse is not masked by the internal filter (refer to Section 19.6). P0[15:13] not transparent RSTF P0[12:2] transparent not t. P0[1:0] not t. not transparent FLARST RST ≤ 1 ms 1024+8 TCL ≤ 2 TCL 1) V RPD > 2.5 V Asynchronous Reset not entered 200 µA Discharge RPD RSTOUT At this time RSTF is sampled LOW so it is definitely LONG reset (After Filter) RSTIN 1024+8 TCL ≤4 TCL2) ≤12 TCL ≤ 500 ns ≥ 50 ns ≤ 500 ns ≥ 50 ns ≤ 500 ns ≥ 50 ns IBUS-CS 7 TCL not t. transparent not t. 3..4 TCL (Internal) |
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