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MSP430F6638IPZ Datasheet(PDF) 57 Page - Texas Instruments |
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MSP430F6638IPZ Datasheet(HTML) 57 Page - Texas Instruments |
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57 / 133 page  8.55 USB-PWR (USB Power System) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VLAUNCH VBUS detection threshold 3.75 V VBUS USB bus voltage Normal operation 3.76 5.5 V VUSB USB LDO output voltage 3.3 ±9% V V18 Internal USB voltage(1) 1.8 V IUSB_EXT Maximum external current from VUSB terminal(2) USB LDO is on 12 mA IDET USB LDO current overload detection(3) 60 100 mA ISUSPEND Operating supply current into VBUS terminal.(4) USB LDO is on, USB PLL disabled 250 µA CBUS VBUS terminal recommended capacitance 4.7 µF CUSB VUSB terminal recommended capacitance 220 nF C18 V18 terminal recommended capacitance 220 nF tENABLE Settling time VUSB and V18 Within 2%, recommended capacitances 2 ms RPUR Pullup resistance of PUR terminal(5) 70 110 150 Ω (1) This voltage is for internal use only. No external DC loading should be applied. (2) This represents additional current that can be supplied to the application from the VUSB terminal beyond the needs of the USB operation. (3) A current overload is detected when the total current supplied from the USB LDO, including IUSB_EXT, exceeds this value. (4) Does not include current contribution of Rpu and Rpd as outlined in the USB specification. (5) This value, in series with an external resistor between PUR and D+, produces the Rpu as outlined in the USB specification. 8.56 USB-PLL (USB Phase-Locked Loop) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER MIN TYP MAX UNIT IPLL Operating supply current 7 mA fPLL PLL frequency 48 MHz fUPD PLL reference frequency 1.5 3 MHz tLOCK PLL lock time 2 ms tJitter PLL jitter 1000 ps www.ti.com MSP430F6638, MSP430F6637, MSP430F6636, MSP430F6635, MSP430F6634 MSP430F6633, MSP430F6632, MSP430F6631, MSP430F6630 SLAS566G – JUNE 2010 – REVISED SEPTEMBER 2020 Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 57 Product Folder Links: MSP430F6638 MSP430F6637 MSP430F6636 MSP430F6635 MSP430F6634 MSP430F6633 MSP430F6632 MSP430F6631 MSP430F6630 |
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