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MCP40D18 Datasheet(PDF) 9 Page - Microchip Technology |
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MCP40D18 Datasheet(HTML) 9 Page - Microchip Technology |
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9 / 66 page  © 2009 Microchip Technology Inc. DS22152B-page 9 MCP40D17/18/19 1.1 I2C Mode Timing Waveforms and Requirements FIGURE 1-1: I2C Bus Start/Stop Bits Timing Waveforms. TABLE 1-1: I2C BUS START/STOP BITS REQUIREMENTS FIGURE 1-2: I2C Bus Data Timing. I2C AC Characteristics Standard Operating Conditions (unless otherwise specified) Operating Temperature –40 °C ≤ TA ≤ +125°C (Extended) Operating Voltage VDD range is described in Section 2.0 “Typical Performance Curves” Param. No. Symbol Characteristic Min Max Units Conditions FSCL Standard Mode 0 100 kHz Cb = 400 pF, 1.8V - 5.5V Fast Mode 0 400 kHz Cb = 400 pF, 2.7V - 5.5V D102 Cb Bus capacitive loading 100 kHz mode — 400 pF 400 kHz mode — 400 pF 90 TSU:STA START condition 100 kHz mode 4700 — ns Only relevant for repeated START condition Setup time 400 kHz mode 600 — ns 91 THD:STA START condition 100 kHz mode 4000 — ns After this period the first clock pulse is generated Hold time 400 kHz mode 600 — ns 92 TSU:STO STOP condition 100 kHz mode 4000 — ns Setup time 400 kHz mode 600 — ns 93 THD:STO STOP condition 100 kHz mode 4000 — ns Hold time 400 kHz mode 600 — ns 91 93 SCL SDA START Condition STOP Condition 90 92 Note 1: Refer to specification D102 (Cb) for load conditions. 90 91 92 100 101 103 106 107 109 109 110 102 SCL SDA In SDA Out |
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