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PIC16F1824-E/ML Datasheet(PDF) 381 Page - Microchip Technology |
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PIC16F1824-E/ML Datasheet(HTML) 381 Page - Microchip Technology |
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381 / 420 page  2010 Microchip Technology Inc. Preliminary DS41419A-page 381 PIC16F/LF1824/1828 TABLE 29-16: I2C™ BUS DATA REQUIREMENTS Param. No. Symbol Characteristic Min. Max. Units Conditions SP100* THIGH Clock high time 100 kHz mode 4.0 — s Device must operate at a minimum of 1.5 MHz 400 kHz mode 0.6 — s Device must operate at a minimum of 10 MHz SSPx module 1.5TCY —— SP101* TLOW Clock low time 100 kHz mode 4.7 — s Device must operate at a minimum of 1.5 MHz 400 kHz mode 1.3 — s Device must operate at a minimum of 10 MHz SSPx module 1.5TCY —— SP102* TR SDAx and SCLx rise time 100 kHz mode — 1000 ns 400 kHz mode 20 + 0.1CB 300 ns CB is specified to be from 10-400 pF SP103* TF SDAx and SCLx fall time 100 kHz mode — 250 ns 400 kHz mode 20 + 0.1CB 250 ns CB is specified to be from 10-400 pF SP106* THD:DAT Data input hold time 100 kHz mode 0 — ns 400 kHz mode 0 0.9 s SP107* TSU:DAT Data input setup time 100 kHz mode 250 — ns (Note 2) 400 kHz mode 100 — ns SP109* TAA Output valid from clock 100 kHz mode — 3500 ns (Note 1) 400 kHz mode — — ns SP110* TBUF Bus free time 100 kHz mode 4.7 — s Time the bus must be free before a new transmission can start 400 kHz mode 1.3 — s SP111 CB Bus capacitive loading — 400 pF * These parameters are characterized but not tested. Note 1: As a transmitter, the device must provide this internal minimum delay time to bridge the undefined region (min. 300 ns) of the falling edge of SCLx to avoid unintended generation of Start or Stop conditions. 2: A Fast mode (400 kHz) I2C™ bus device can be used in a Standard mode (100 kHz) I2C bus system, but the requirement TSU:DAT 250 ns must then be met. This will automatically be the case if the device does not stretch the low period of the SCLx signal. If such a device does stretch the low period of the SCLx sig- nal, it must output the next data bit to the SDAx line TR max. + TSU:DAT = 1000 + 250 = 1250 ns (according to the Standard mode I2C bus specification), before the SCLx line is released. |
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