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USB5744/2G 数据表(PDF) 46 Page - Microchip Technology |
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USB5744/2G 数据表(HTML) 46 Page - Microchip Technology |
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46 / 51 page ![]() USB5744 DS00001855K-page 46 2022 Microchip Technology Inc. and its subsidiaries DS00001855B (04-16-15) Features Changed Environmental feature bullet from “4kV HBM JESD22-A114F ESD protection” to “3kV HBM JESD22-A114F ESD protection” Section 10.2, Operating Conditions** Changed XTALI/CLK_IN Voltage to -0.3V to +3.6V Table 10-10, "Crystal Specifications" Total Allowable PPM budget changed to 100pm, removed notes under table regarding “Frequency Tolerance” and “Frequency and Transmitter Clock Frequency” Section 10.7.2, External Reference Clock (CLK_IN) Changed +-350ppm t +-100 ppm Figure 3-1, "56-VQFN Pin Assignments"Table 3-1, "56-VQFN Pin Assignments" Modified pin 32 from “PRT_CTL4/ GANG_PWR” to “PRT_CTL4/GANG_PWR” Table 3-5, "USB Port Control Pin Descriptions" Revised description of Pin 1, GANG_PWR Table 1-1, "General Terms" and throughout document Replaced the term Hub Controller with Hub Feature Controller, added definition in Table 1- 1, "General Terms". Section 6.1.2, SMBus Accessible Functions Added web link to AN1903 Removed PortMap feature throughout docu- ment. Table 3-7, "Miscellaneous Pin Descriptions" Modified RESET_N pin description Section 8.3, Link Power Management (LPM) Removed “per the USB 3.0 Specification” from the first sentence. Removed last sentence “For additional information, refer to the USB 3.0 Specification.” Table 10-2, "MAXIMUM Power Dissi- pation" Added Table 10-2. Section 10.7, "Clock Specifications",Figure 10-6, Table 10- 10, "Crystal Specifications" Updated these sections. Section 10.7.2, External Reference Clock (CLK_IN) Oscillator changed from “35MHz” to “25 MHz” Section 10.6.7, SPI Timing Removed SPI interface configure note Section 10.1, Absolute Maximum Rat- ings* Added “Positive voltage on USB 3.0 USB3UP- _xxxx and USB3DN_xxxx signal pins, with respect to ground...1.32 V Changed XTALI positive voltage from 2.1V to 3.63V. Changed “USB 3.0 DP/DM Signal Pins Volt- age” to “USB 3.0 USB3UP_xxxx and USB3DN_xxxx Signal Pins Voltage” Section 8.4.2, "Port Connection in Combined Mode," on page 27 Added note under Section 8.4.2 Product Identification System on page 49 Updated ordering information TABLE A-1: REVISION HISTORY (CONTINUED) Revision Level & Date Section/Figure/Entry Correction |
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