27 DATASHEET
USB2250/50i/51/51i SMSC
PIN
16
103
64
1
4
2
3
121
5
55
48
56
54
7
8
127
124
123
6
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| RESET STATE |
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| xD Mode |
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| SD Mode |
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| MS Mode |
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PIN NAME |
| FUNCTION |
| OUT- |
| PU/ |
| IN- |
| FUNCTION |
| OUT- |
| PU/ |
| IN- |
| FUNCTION |
| OUT- |
| PU/ |
| IN- |
| FUNCTION |
| OUT- |
| PU/ |
| IN- | ||
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| PUT |
| PD |
| PUT |
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| PUT |
| PD |
| PUT |
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| PUT |
| PD |
| PUT |
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| PUT |
| PD |
| PUT | |||||||
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GPIO11/CARD_PWR3 |
| GPIO |
| z |
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| GPIO |
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| (fw) |
| (fw) |
| (fw) |
| PWR |
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| VDD |
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TEST |
| TEST |
| z |
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| yes |
| TEST |
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| z |
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| yes |
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nRESET |
| nRESET |
| z |
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| yes |
| nRESET |
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| z |
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| yes |
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MA12 |
| MA |
| 0 |
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| MA |
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| hw |
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MA14 |
| MA |
| 0 |
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| MA |
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| hw |
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MA15 |
| MA |
| 0 |
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| MA |
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| hw |
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nMWR |
| MA |
| 1 |
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| MA |
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| hw |
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GPIO3 (VBUS_DET) |
| GPIO |
| z |
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| yes |
| GPIO |
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| (fw) |
| (fw) |
| (fw) |
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GPIO5 (SDA) |
| GPIO |
| 0 |
| pu |
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| GPIO |
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| (fw) |
| (fw) |
| (fw) |
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SM_nRE |
| SM |
| z |
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| SM |
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| hw |
| (fw) |
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SM_nWE |
| SM |
| z |
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| SM |
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| hw |
| (fw) |
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SM_nB/R |
| SM |
| z |
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| SM |
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| z |
| (fw) |
| yes |
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SM_nCE |
| SM |
| z |
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| SM |
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| hw |
| (fw) |
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USB+ |
| USB+ |
| z |
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| USB+ |
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| z |
| hw |
| hw |
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USB- |
| USB- |
| z |
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| USB- |
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| z |
| hw |
| hw |
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RBIAS |
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XTAL1(CLKIN) |
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XTAL2 |
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REG_EN |
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Datasheet | USB Fast Ultra |
| Controller Media Flash |