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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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AMC7812B Fiches technique(PDF) 11 Page - Texas Instruments |
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AMC7812B Fiches technique(HTML) 11 Page - Texas Instruments |
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11 / 93 page  t HD, STA t SU, DAT t HD, DAT t SU, STA t SU, STO t HD,STA t LOW t HIGH t R t F t BUF SDA SCL S Sr P S S=STARTCondition Sr=RepeatedSTARTCondition P=STOPCondition =ResistorPull-Up AMC7812B www.ti.com SBAS625A – SEPTEMBER 2013 – REVISED SEPTEMBER 2013 I 2C-COMPATIBLE TIMING DIAGRAMS Figure 1. Timing for Standard and Fast Mode Devices on the I2C Bus TIMING CHARACTERISTICS: SDA and SCL for Standard and Fast Modes (1) At –40°C to +105°C, AVDD = DVDD = 4.5 V to 5.5 V, AGND = DGND = 0 V, and IOVDD = 2.7 V to 5.5 V, unless otherwise noted. STANDARD MODE FAST MODE PARAMETER MIN MAX MIN MAX UNIT fSCL (2) SCL clock frequency 0 100 0 400 kHz tLOW Low period of the SCL clock 4.7 — 1.3 — µs tHIGH High period of the SCL clock 4.0 — 0.6 — µs tSU, STA Set-up time for a repeated start condition 4.7 — 0.6 — µs Hold time (repeated) start condition. After this tHD, STA 4.0 — 0.6 — µs period, the first clock pulse is generated tSU, DAT Data set-up time 250 — 100 — ns tHD, DAT Data hold time for I2C-bus devices 0 3.45 0 0.9 µs tSU, STO Set-up time for stop condition 4.0 — 0.6 — µs tR Rise time of both SDA and SCL signals — 1000 20 + 0.1 CB (3) 300 ns tF Fall time of both SDA and SCL signals — 300 20 + 0.1 CB (3) 300 ns tBUF Bus-free time between a stop and start condition 4.7 — 1.3 — µs CB Capacitive load for each bus line — 400 — 400 pF tSP Pulse duration of spike suppressed N/A N/A 0 50 ns (1) All values refer to VIHmin and VILmax levels. (2) An SCL operating frequency of at least 1 kHz is recommended to avoid activating the I2C timeout function. See the Timeout Function section for details. (3) CB = total capacitance of one bus line in pF. Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: AMC7812B |
Numéro de pièce similaire - AMC7812B_14 |
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Description similaire - AMC7812B_14 |
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