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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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VX6953CB датащи(PDF) 95 Page - STMicroelectronics |
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VX6953CB датащи(HTML) 95 Page - STMicroelectronics |
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95 / 107 page  8209023 Rev 5 95/107 VX6953CB Electrical characteristics 12.6 CCI interface - SDA, SCL 12.6.1 CCI interface - DC specification 12.6.2 CCI interface - timing characteristics Table 51. CCI interface Symbol Parameter Min. Max. Unit VIL Low level input voltage 0 0.3 * VDIG V VIH High level input voltage 0.7 * VDIG VDIG+0.5V V VOL Low level output voltage(1) 1. VOH is not valid for CCI. 3 mA drive strength. 0 0.2 * VDIG V IIL Low level input current - -10 µA IIH High level input current - 10 µA Table 52. CCI interface - timing characteristics Symbol Parameter Min. Typ. Max. Unit tSCL SCL clock frequency 0 - 400 kHz tLOW Clock pulse width low 1.3 - - μs tHIGH Clock pulse width high 0.6 - - μs tSP Pulse width of spikes which are suppressed by the input filter 0 - 50 ns tBUF Bus free time between transmissions 1.3 - - μs tHD.STA Start hold time 0.6 - - μs tSU.STA Start set-up time 0.6 - - μs tHD.DAT Data in hold time 0 - 0.9 μs tSU.DAT Data in set-up time 100 - - ns tR SCL/SDA rise time 20+0.1 Cb(1) - 300 ns tF SCL/SDA fall time 20+0.1 Cb(1) - 300 ns tSU.STO Stop set-up time 0.6 - - μs Ci/o Input/output capacitance (SDA) - - 8 pF Cin Input capacitance (SCL) - - 6 pF 1. Cb = total capacitance of one bus line in pF. |
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