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PCF8575CDGVRE4 数据表(PDF) 3 Page - Texas Instruments |
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PCF8575CDGVRE4 数据表(HTML) 3 Page - Texas Instruments |
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3 / 26 page  www.ti.com PCF8575C REMOTE 16-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT SCPS123C – MARCH 2005 – REVISED JULY 2006 TERMINAL FUNCTIONS NO. DB, DBQ, DGV, NAME FUNCTION DW, PW, AND RGE RHL 1 22 INT Interrupt output. Connect to VCC through a pullup resistor. 2 23 A1 Address input 1. Connect directly to VCC or ground. Pullup resistors are not needed. 3 24 A2 Address input 2. Connect directly to VCC or ground. Pullup resistors are not needed. 4 1 P00 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 5 2 P01 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 6 3 P02 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 7 4 P03 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 8 5 P04 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 9 6 P05 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 10 7 P06 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 11 8 P07 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 12 9 GND Ground 13 10 P10 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 14 11 P11 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 15 12 P12 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 16 13 P13 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 17 14 P14 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 18 15 P15 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 19 16 P16 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 20 17 P17 P-port input/output. Open-drain design structure. Connect to VCC through a pullup resistor. 21 18 A0 Address input 0. Connect directly to VCC or ground. Pullup resistors are not needed. 22 19 SCL Serial clock line. Connect to VCC through a pullup resistor 23 20 SDA Serial data line. Connect to VCC through a pullup resistor. 24 21 VCC Supply voltage 3 Submit Documentation Feedback |
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