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UCS1002-2 数据表(PDF) 13 Page - Microchip Technology |
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UCS1002-2 数据表(HTML) 13 Page - Microchip Technology |
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13 / 114 page  Programmable USB Port Power Controller with Charger Emulation Datasheet SMSC UCS1002 13 Revision 1.4 (07-16-13) DATASHEET 5 COMM_SEL / ILIM COMM_SEL - Selects SMBus address or Stand-alone mode of operation AIO n/a ILIM - Selects the maximum current limit at power-up 6 SEL Selects whether PWR_EN is active high or active low and determines the SMBus address AIO n/a 7 VS1 Voltage input to Power Switch. These pins must be tied together. Hi-Power, AIO Connect to ground 8 VS2 9 VDD Main power supply input for chip functionality Power n/a 10 PWR_EN Port power switch enable input. Polarity determined by SEL pin. DI Connect to ground or VDD (see Note 2.3) 11 SMDATA / LATCH SMDATA - SMBus data input/output (requires pull-up resistor) DIOD n/a LATCH - In Stand-alone mode, Latch / Auto-recovery fault handling mechanism selection input DI 12 SMCLK / S0 SMCLK - SMBus Clock Input (requires pull-up resistor) DI n/a S0 - In Stand-alone mode, enables Attach / Removal Detection feature 13 ALERT# Active low error event output flag (requires pull-up resistor) OD Connect to ground 14 DPIN USB data input (plus) AIO Connect to ground or ground through a resistor 15 DMIN USB data input (minus) AIO Connect to ground or ground through a resistor 16 DMOUT USB data output (minus) AIO (see Note 2.2) Connect to ground 17 DPOUT USB data output (plus) AIO (see Note 2.2) Connect to ground 18 A_DET# Active low Attach Detection output flag (requires pull-up resistor) OD Connect to ground 19 EM_EN Active mode selector input DI Connect to ground or VDD (see Note 2.3) Table 2.1 UCS1002 Pin Description (continued) PIN NUMBER PIN NAME PIN FUNCTION PIN TYPE IF PIN NOT USED CONNECTION |
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