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TCA9554 Datasheet(PDF) 3 Page - Texas Instruments |
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TCA9554 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 31 page 14 I/O Port Shift Register 8 Bits LP Filter Interrupt Logic Input Filter 15 Power-On Reset Read Pulse Write Pulse 2 1 13 16 8 GND VCC SDA SCL A1 A0 INT I2C Bus Control P7−P0 3 A2 Data From Shift Register Data From Shift Register Write Configuration Pulse Write Pulse Read Pulse Write Polarity Pulse Data From Shift Register Output Port Register Configuration Register Input Port Register Polarity Inversion Register Polarity Register Data Input Port Register Data GND P0 to P7 VCC Output Port Register Data Q1 Q2 D CK FF Q Q D CK FF Q Q D CK FF Q Q D CK FF Q Q INT 100 kW TCA9554 www.ti.com SCPS233A – NOVEMBER 2011 – REVISED MARCH 2012 Figure 1. FUNCTIONAL BLOCK DIAGRAM A. Pin numbers shown are for the PW package. B. All I/Os are set to inputs at reset. Figure 2. SIMPLIFIED SCHEMATIC OF P0 TO P7 A. At power-on reset, all registers return to default values. Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TCA9554 |
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