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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ASM330LHB датащи(PDF) 14 Page - STMicroelectronics |
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ASM330LHB датащи(HTML) 14 Page - STMicroelectronics |
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14 / 131 page  4.4.2 I²C - inter-IC control interface Subject to general operating conditions for Vdd and Top. Table 6. I²C slave timing values Symbol Parameter I²C standard mode(1) I²C fast mode(1) Unit Min Max Min Max f(SCL) SCL clock frequency 0 100 0 400 kHz tw(SCLL) SCL clock low time 4.7 1.3 µs tw(SCLH) SCL clock high time 4.0 0.6 tsu(SDA) SDA setup time 250 100 ns th(SDA) SDA data hold time 0 3.45 0 0.9 µs th(ST) START condition hold time 4 0.6 tsu(SR) Repeated START condition setup time 4.7 0.6 tsu(SP) STOP condition setup time 4 0.6 tw(SP:SR) Bus free time between STOP and START condition 4.7 1.3 1. Data based on standard I²C protocol requirement, not tested in production. Figure 6. I²C slave timing diagram SDA SCL tsu(SP) tw(SCLL) tsu(SDA) tsu(SR) th(ST) tw(SCLH) th(SDA) tw(SP:SR) START REPEATED START STOP START Note: Measurement points are done at 0.3·Vdd_IO and 0.7·Vdd_IO for both ports. ASM330LHB Communication interface characteristics DS13773 - Rev 7 page 14/131 |
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