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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UCS1002-2 датащи(PDF) 17 Page - Microchip Technology |
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UCS1002-2 датащи(HTML) 17 Page - Microchip Technology |
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17 / 114 page  Programmable USB Port Power Controller with Charger Emulation Datasheet SMSC UCS1002 17 Revision 1.4 (07-16-13) DATASHEET SMBus / I2C Timing Input Capacitance CIN 5pF Clock Frequency fSMB 10 400 kHz Spike Suppression tSP 50 ns Bus Free Time Stop to Start tBUF 1.3 µs Start Setup Time tSU:STA 0.6 µs Start Hold Time tHD:STA 0.6 µs Stop Setup Time tSU:STO 0.6 µs Data Hold Time tHD:DAT 0 µs When transmitting to the master Data Hold Time tHD:DAT 0.3 µs When receiving from the master Data Setup Time tSU:DAT 0.6 µs Clock Low Period tLOW 1.3 µs Clock High Period tHIGH 0.6 µs Clock / Data Fall Time tFALL 300 ns Min = 20+0.1CLOAD ns Clock / Data Rise Time tRISE 300 ns Min = 20+0.1CLOAD ns Capacitive Load CLOAD 400 pF Per bus line Timeout tTIMEOUT 25 35 ms Disabled by default Idle Reset tIDLE_RESET 350 µs Disabled by default. High-speed Data Switch High-speed Data Switch - DC Parameters Switch Leakage Current IHSW_OFF ±0.5 µA Switch open - DPIN to DPOUT, DMIN to DMOUT, or all four pins to ground. VDD < VS. Charger Resistance RCHG 2M Ω DPOUT or DMOUT to VBUS or ground, see Figure 3.2 BC1.2 DCP charger emulation active Table 3.3 Electrical Specifications (continued) VDD = 4.5 V to 5.5 V, VS = 2.9 V to 5.5 V, VPULLUP = 3V to 5.5V, TA = -40 °C to 85 °C all Typical values at VDD = VS = 5 V, TA = 27 °C unless otherwise noted. CHARACTERISTIC SYMBOL MIN TYP MAX UNIT CONDITIONS |
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