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PCF8574ARGYR Datasheet(PDF) 7 Page - Texas Instruments |
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PCF8574ARGYR Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 21 page  www.ti.com PARAMETER MEASUREMENT INFORMATION RL = 1 kΩ VCC CL = 10 pF to = 400 pF tbuf ticr tsth tsds tsdh ticf ticr tscl tsch tsts tPHL tPLH 0.3 × VCC Stop Condition tsps Repeat Start Condition Start or Repeat Start Condition SCL SDA Start Condition (S) Bit 7 (MSB) Bit 6 Bit 0 LSB (R/W) Acknowledge (A) Stop Condition (P) 2 Bytes for Complete Device Programming LOAD CIRCUIT VOLTAGE WAVEFORMS ticf Stop Condition (P) tsp DUT Pn 0.7 × VCC 0.3 × VCC 0.7 × VCC PCF8574A REMOTE 8-BIT I/O EXPANDER FOR I2C BUS SCPS069D – JULY 2001 – REVISED OCTOBER 2005 Figure 1. I2C Interface Load Circuit and Voltage Waveforms 7 |
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