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PCA9546ADT Datasheet(PDF) 11 Page - Texas Instruments |
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PCA9546ADT Datasheet(HTML) 11 Page - Texas Instruments |
11 / 27 page www.ti.com PARAMETER MEASUREMENT INFORMATION RL = 1 kΩ VCC CL = 50 pF (See Note A) tbuf ticr tsth tsds tsdh ticf ticr tscl tsch tsts tvd(ACK) or tvdL tvdH 0.3 × VCC Stop Condition tsps Repeat Start Condition Start or Repeat Start Condition SCL SDA Start Condition (S) Address Bit 7 (MSB) Data Bit 0 (LSB) Stop Condition (P) Two Bytes for Complete Device Programming I2C PORT LOAD CONFIGURATION VOLTAGE WAVEFORMS ticf Stop Condition (P) tsp DUT SDn, SCn 0.7 × VCC 0.3 × VCC 0.7 × VCC R/W Bit 0 (LSB) ACK (A) Data Bit 7 (MSB) Address Bit 1 Address Bit 6 ACK (A) BYTE DESCRIPTION I2C address + R/W Control register data 1 2 PCA9546A 4-CHANNEL I2C AND SMBus SWITCH WITH RESET FUNCTION SCPS148E – OCTOBER 2005 – REVISED JANUARY 2008 A. CL includes probe and jig capacitance. B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr/tf ≤ 30 ns. C. The outputs are measured one at a time, with one transition per measurement. Figure 10. I2C Interface Load Circuit, Byte Descriptions, and Voltage Waveforms Copyright © 2005–2008, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): PCA9546A |
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