Ultra Fast USB 2.0 SD/MMC Flash Media Controller
Datasheet
Chapter 7 DC Parameters
7.1Maximum Guaranteed Ratings
PARAMETER | SYMBOL | MIN | MAX | UNITS | COMMENTS |
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Storage | TA | 150 | °C |
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Temperature |
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Lead |
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| 325 | °C | Soldering < 10 seconds |
Temperature |
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3.3V supply | VDD33, | 4.0 | V |
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voltage | VDDA33 |
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Voltage on |
| (3.3V supply voltage + 2) ≤ 6 | V |
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USB+ and |
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USB- pins |
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Voltage on |
| VDD33 + 0.3 | V | When internal power FET | |
GPIO10 |
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| operation of this pin is enabled, |
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| this pin may be simultaneously |
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| shorted to ground or any |
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| voltage up to 3.63V indefinitely, |
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| without damage to the device |
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| as long as VDD33 and VDDA33 |
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| are less than 3.63V and TA is |
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| less than 70oC. |
Voltage on any |
| VDD33 + 0.3 | V |
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signal pin |
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Voltage on |
| 4.0 | V |
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XTAL1 |
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Voltage on |
| VDD18 + 0.3 | V |
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XTAL2 |
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Note 7.1 Stresses above the specified parameters may cause permanent damage to the device. This is a stress rating only and functional operation of the device at any condition above those indicated in the operation sections of this specification is not implied.
Note 7.2 When powering this device from laboratory or system power supplies, it is important that the Absolute Maximum Ratings not be exceeded or device failure can result. Some power supplies exhibit voltage spikes on their outputs when the AC power is switched on or off. In addition, voltage transients on the AC power line may appear on the DC output. When this possibility exists, it is suggested that a clamp circuit be used.
SMSC USB2244/USB2244i | 15 | Revision 1.0 |
DATASHEET