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PCF8574ADWE4 Datasheet(PDF) 9 Page - Texas Instruments |
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PCF8574ADWE4 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 35 page W A 0.7 × VCC 0.3 × VCC SCL D tpv Slave Acknowledge Unstable Data Last Stable Bit SDA Pn A A A A S 0 1 0 0 A1 A2 A0 1 Data 1 1 P Data 3 Start Condition Acknowledge From Slave Acknowledge From Slave Data From Port Data From Port Slave Address R/W 8 7 6 5 4 3 2 1 tir tir tsps tiv Data 1 Data 2 Data 3 INT Data Into Port B B A A P INT n R/W A tir 0.7 × VCC 0.3 × VCC 0.7 × VCC 0.3 × VCC 0.7 × VCC 0.3 × VCC 0.7 × VCC 0.3 × VCC INT SCL View B−B View A−A tiv PCF8574A www.ti.com SCPS069F – JULY 2001 – REVISED NOVEMBER 2015 Parameter Measurement Information (continued) Figure 13. Interrupt Voltage Waveforms Figure 14. I2C Write Voltage Waveforms Copyright © 2001–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: PCF8574A |
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