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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HB28D032MM2 датащи(PDF) 82 Page - Renesas Technology Corp |
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HB28D032MM2 датащи(HTML) 82 Page - Renesas Technology Corp |
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82 / 90 page  HB28H016/D032/B064/B128MM2 Rev.5.0, Jan. 2003, page 80 of 88 Absolute Maximum Ratings Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these conditions or at any other condition beyond those indicated in the operational sections of this specification is not implied: Parameter Symbol Min Max Unit Remark Supply voltage V CC –0.5 4.6 V Total power dissipation P d 288 mW ESD protection Contact Pads –4 4 kV Human body model according to ANSI/EOS ESD-S5.1-1998 Non Contact Pads coupling plane discharge –8 8 kV Human body model according to IEC61000-4- 2 Non Contact Pads air discharge –15 15 kV Inputs Input voltage V Imax –0.5 V CC + 0.5 V • max (V CC) Outputs Output voltage V Omax –0.5 V CC + 0.5 V • max (V CC) High-level output current I OHmax –100 mA short cut protected Low-level output current I OLmax 150 mA short cut protected Bus Signal Line Load The total capacitance C L of each line of the MultiMediaCard bus is the sum of the bus master capacitance C HOST, the bus capacitance CBUS itself and the capacitance CCARD of each card connected to this line: C L = CHOST + CBUS + N*CCARD where N is the number of connected cards. Requiring the sum of the host and bus capacitance’s not to exceed 30 pF for up to 10 cards, and 40 pF for up to 30 cards, the following values must not be exceeded: Parameter Symbol Min Max Unit Remark Pull-up resistance for CMD R CMD 4.7 100 k Ω to prevent bus floating Pull-up resistance for DAT R DAT 50 100 k Ω to prevent bus floating Bus signal line capacitance C L — 250 pF f PP ≤ 5 MHz, 30 cards Bus signal line capacitance C L — 100 pF f PP ≤ 20 MHz, 10 cards Maximum signal line inductance — 16 nH f PP ≤ 20 MHz Note: 1. The value of pull-up resistance should be optimized according to the host system. |
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