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HL7548 Datasheet(PDF) 28 Page - List of Unclassifed Manufacturers |
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HL7548 Datasheet(HTML) 28 Page - List of Unclassifed Manufacturers |
28 / 53 page 4116369 Rev 9.0 September 04, 2017 28 Product Technical Specification Detailed Interface Specifications Pad # Signal Name Description Multiplex 29 UIM1_RESET 1.8V/3V SIM1 Reset 64 UIM1_DET UIM1 Detection GPIO3 Table 13. Electrical Characteristics of UIM1 Parameter Minimum Typical Maximum Remarks UIM1 Interface Voltage (V) (VCC, CLK, IO, RST) - 2.9 - The appropriate output voltage is auto detected and selected by software. - 1.80 - UIM1 Detect - 1.80 - High active UIM1_VCC Current (mA) - - 10 Max output current in sleep mode = 3 mA UIM1_VCC Line Regulation (mV/V) - - 50 At Iout_Max UIM1_VCC Power-up Setting Time (µs) from power down - 10 - 3.5.1. UIM1_DET UIM1_DET is used to detect and notify the application about the insertion and removal of a SIM device in the SIM socket connected to the SIM interface. When a SIM is inserted, the state of UIM1_DET transitions from logic 0 to logic 1. Inversely, when a SIM is removed, the state of UIM1_DET transitions from logic 1 to logic 0. 3.6. USB The AirPrime HL7548 and HL7588 have one USB interface. Table 14. USB Pad Description Pad Number Signal Name I/O Function 12 USB_D- I/O USB Data Negative 13 USB_D+ I/O USB Data Positive 16 USB_VBUS I USB VBUS Note: When a USB supply is not available, connect USB_VBUS to VBATT to supply the USB interface. USB_VBUS will have a voltage range of 3.3V to 4.5V when connected to VBATT. |
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