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SM320F2812GHHMEP Folha de dados(PDF) 95 Page - Texas Instruments |
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SM320F2812GHHMEP Folha de dados(HTML) 95 Page - Texas Instruments |
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95 / 158 page  Electrical Specifications 95 March 2004 − Revised April 2010 SGUS051B VDD_3.3V† 2.5 V (see Note A) 3.3 V VDD_1.8V‡ XRS 1.8 V (or 1.9 V) XRS > 8 μs 1.5 V 3.3 V <10 ms >1 ms Power-Up Sequence Power-Down Sequence 1.8 V (or 1.9 V) † VDD_3.3V −VDDIO, VDD3VFL , VDDAIO , VDDA1 , VDDA2 , AVDDREFBG ‡ VDD_1.8V −VDD , VDD1 NOTES: A. 1.8-V (or 1.9 V) supply should ramp after the 3.3-V supply reaches at least 2.5 V. B. Reset (XRS) should remain low until supplies and clocks are stable. See Figure 6−9, Power-on Reset in Microcomputer Mode (XMP/MC = 0), for minimum requirements. C. Voltage supervisor or LDO reset control will trip reset (XRS) first when the 3.3-V supply is off regulation. Typically, this occurs a few milliseconds before the 1.8-V (or 1.9 V) supply reaches 1.5 V. D. Keeping reset low (XRS) at least 8 μs prior to the 1.8-V (or 1.9 V) supply reaching 1.5 V will keep the flash module in complete reset before the supplies ramp down. E. Since the state of GPIO pins is undefined until the 1.8-V (or 1.9 V) supply reaches at least 1 V, this supply should be ramped as quickly as possible (after the 3.3-V supply reaches at least 2.5 V). F. Other than the power supply pins, no pin should be driven before the 3.3-V rail has been fully powered up. See Note B See Note D See Note C Figure 6−4. F2812/F2811/F2810 Typical Power-Up and Power-Down Sequence − Option 2 |
Nº de peça semelhante - SM320F2812GHHMEP |
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Descrição semelhante - SM320F2812GHHMEP |
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