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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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ST7263BEx 데이터시트(PDF) 158 Page - STMicroelectronics |
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ST7263BEx 데이터시트(HTML) 158 Page - STMicroelectronics |
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158 / 186 page  Electrical characteristics ST7263Bxx 158/186 Doc ID 7516 Rev 8 Figure 74. RESET pin protection when LVD is disabled 13.10 Communication interface characteristics 13.10.1 USB interface Operating conditions TA = 0 to +70 °C, VDD = 4.0 to 5.25 V unless otherwise specified. Figure 75. USB data signal rise and fall time 0.01 μF EXTERNAL RESET CIRCUIT USER Required ST72XXX PULSE GENERATOR Filter RON VDD WATCHDOG INTERNAL RESET Table 73. USB DC characteristics Symbol Parameter Conditions Min. Max. Unit VDI Differential input sensitivity I(D+, D-) 0.2 - V(1) VCM Differential common mode range Includes VDI range 0.8 2.5 VSE Single ended receiver threshold 0.8 2.0 VOL Static output low RL (2)of 1.5 K Ω to 3.6 V - 0.3 VOH Static output high RL (2) of 15 K Ω to V SS 2.8 3.6 USBV USBVCC: voltage level(3) VDD=5 V 3.00 3.60 1. All the voltages are measured from the local ground potential. 2. RL is the load connected on the USB drivers. 3. To improve EMC performance (noise immunity), it is recommended to connect a 100nF capacitor to the USBVCC pin. Differential Data Lines VSS tf tr Crossover points VCRS |
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