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PAS202BCA Datasheet(PDF) 10 Page - Pixart Imaging Inc. |
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PAS202BCA Datasheet(HTML) 10 Page - Pixart Imaging Inc. |
10 / 15 page PixArt Imaging Inc. PAS202BCA/PAS202BBA CMOS Image Sensor IC All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 10 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw V1.2, May. 2002 4.3 I2C Bus Timing Fig 4.4 I2C Bus Timing 4.4 I2C Bus Timing Specification STANDARD-MODE PARAMETER SYMBOL MIN. MAX. UNIT SCL clock frequency fscl 10 400 kHz Hold tie (repeated) START condition. After this period, the first clock pulse is generated. tHD:STA 4.0 - us Low period of the SCL clock tLOW 4.7 - us HIGH period of the SCL clock tHIGH 0.75 - us Set-up time for a repeated START condition tSU;STA 4.7 - us Data hold time. For I2C-bus device tHD;DAT 0 3.45 us Data set-up time tSU;DAT 250 - ns Rise time of both SDA and SCL signals tr 30 N.D. ns(note1) Fall time of both SDA and SCL signals tf 30 N.D. ns(note1) Set-up time for STOP condition tSU;STO 4.0 - us Bus free time between a STOP and START tBUF 4.7 - us Capacitive load for each bus line Cb 1 15 pF Noise margin at the LOW level for each connected device (including hysteresis) VnL 0.1 VDD - V Noise margin at the HIGH level for each connected device (including hysteresis) VnH 0.2 VDD - V Note 1: It depends on the "high" period time of SCL. SDA SCL tf tHD;STA tLOW tr tHD;DAT tHIGH tSU;DAT tf tSU;STA tHD;STA tSP tSU;STO tBUF tr P S Sr S |
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