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PCF8574ARGYR Datasheet(PDF) 7 Page - Texas Instruments |
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PCF8574ARGYR Datasheet(HTML) 7 Page - Texas Instruments |
7 / 16 page PCF8574 REMOTE 8BIT I/O EXPANDER FOR I2C BUS SCPS068C - JULY 2001 − REVISED JANUARY 2004 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION DUT RL = 1 kΩ VCC CL = 10 pF to 400 pF tbuf ticr tsth tsds tsdh ticf ticr tscl tsch tsts tPHL tPLH 0.7 × 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 0.7 × VCC 0.3 × VCC 0.3 × VCC Pn BYTE DESCRIPTION 1 I2C address 2 P-port data Figure 1. I2C Interface Load Circuit and Voltage Waveforms |
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