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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCP4726 датащи(PDF) 9 Page - Microchip Technology |
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MCP4726 датащи(HTML) 9 Page - Microchip Technology |
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9 / 86 page  © 2011 Microchip Technology Inc. DS22272A-page 9 MCP4706/4716/4726 FIGURE 1-3: I2C Bus Start/Stop Bits Timing Waveforms. TABLE 1-2: I2C BUS START/STOP BITS REQUIREMENTS I2C AC Characteristics Standard Operating Conditions (unless otherwise specified) Operating Temperature –40 °C ≤ TA ≤ +125°C (Extended) Operating Voltage VDD range is described in Electrical characteristics Param. No. Symbol Characteristic Min Max Units Conditions FSCL SCL pin Frequency Standard Mode 0 100 kHz Cb = 400 pF, 2.7V - 5.5V Fast Mode 0 400 kHz Cb = 400 pF, 2.7V - 5.5V High-Speed 1.7 0 1.7 MHz Cb = 400 pF, 4.5V - 5.5V High-Speed 3.4 0 3.4 MHz Cb = 100 pF, 4.5V - 5.5V D102 Cb Bus capacitive loading 100 kHz mode — 400 pF 400 kHz mode — 400 pF 1.7 MHz mode — 400 pF 3.4 MHz mode — 100 pF 90 TSU:STA START condition 100 kHz mode 4700 — ns Only relevant for repeated START condition Setup time 400 kHz mode 600 — ns 1.7 MHz mode 160 — ns 3.4 MHz mode 160 — 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 1.7 MHz mode 160 — ns 3.4 MHz mode 160 — ns 92 TSU:STO STOP condition 100 kHz mode 4000 — ns Setup time 400 kHz mode 600 — ns 1.7 MHz mode 160 — ns 3.4 MHz mode 160 — ns 93 THD:STO STOP condition 100 kHz mode 4000 — ns Hold time 400 kHz mode 600 — ns 1.7 MHz mode 160 — ns 3.4 MHz mode 160 — ns 94 THVCSU HVC to SCL Setup time 25 — uS High Voltage Commands 95 THVCHD SCL to HVC Hold time 25 — uS High Voltage Commands 91 93 SCL SDA START Condition STOP Condition 90 92 VIH 111 VIL |
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