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G767 Datasheet(PDF) 3 Page - Global Mixed-mode Technology Inc |
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G767 Datasheet(HTML) 3 Page - Global Mixed-mode Technology Inc |
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3 / 14 page  Ver: 2.5 Dec 14, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 3 G767 Global Mixed-mode Technology Inc. Electrical Characteristics (continued) (Vcc = + 3.3V, TA = 0 to +85°C, unless otherwise noted.) PARAMETER CONDITIONS MIN TYP MAX UNITS SMBus Interface Logic Input High Voltage STBY , SMBCLK, SMBDATA; Vcc = 3V to 5.5V 2.2 --- --- V Logic Input Low Voltage STBY , SMBCLK, SMBDATA; Vcc = 3V to 5.5V --- --- 0.8 V Logic Output Low Sink Current ALERT , SMBDATA forced to 0.4V 6 --- --- mA ALERT Output High Leakage Current ALERT forced to 5.5V --- --- 1 µA Logic Input Current Logic inputs forced to Vcc or GND -1 --- 1 µA SMBus Input Capacitance SMBCLK, SMBDATA --- 5 --- pF SMBus Clock Frequency (Note 4) DC --- 100 kHz SMBCLK Clock Low Time tLOW , 10% to 10% points 4.7 --- --- µs SMBCLK Clock High Time tHIGH , 90% to 90% points 4 --- --- µs SMBus Start-Condition Setup Time 4.7 --- --- µs SMBus Repeated Start-Condition Setup Time tSU : STA , 90% to 90% points 500 --- --- ns SMBus Start-Condition Hold Time tHD: STA , 10% of SMBDATA to 90% of SMBCLK 4 --- --- µs SMBus Start-Condition Setup Time tSD: STO , 90% of SMBDATA to 10% of SMBDATA 4 --- --- µs SMBus Data Valid to SMBCLK Rising-Edge Time tSU: DAT , 10% or 90% of SMBDATA to 10% of SMBCLK 800 --- --- ns SMBus Data-Hold Time tHD : DAT (Note 5) 0 --- --- µs SMBCLK Falling Edge to SMBus Data-Valid Time Master clocking in data --- --- 1 µs Electrical Characteristics (Vcc = + 3.3V, TA = -5.5 to + 125°C, unless otherwise noted.) (Note 6) PARAMETER CONDITIONS MIN TYP MAX UNITS ADC and power supply Temperature Resolution (Note 1) Monotonicity guaranteed 8 --- --- Bits TA = +60°C to +100°C -2 --- 2 Initial Temperature Error, Local Diode (Note 2) TA = -55°C to +125°C -3 --- 3 °C TR = +60°C to +100°C -3 --- 3 Temperature Error, Remote Diode (Notds2 and 3) TR = -55°C to +125°C -5 --- 5 °C Supply-Voltage Range 3.0 --- 5.5 V Conversion Time From stop bit to conversion complete (both channels) 94 125 156 ms Conversion Rate Timing Error Auto-convert mode -25 --- 25 % SMBus Interface Vcc = 3V 2.2 --- --- Logic Input High Voltage STBY, SMBCLK, SMBDATA Vcc = 5.5V 2.4 --- --- V Logic Input Low Voltage STBY, SMBCLK, SMBDATA; Vcc = 3V to 5.5V --- --- 0.8 V Logic Output Low Sink Current ALERT, SMBDATA forced to 0.4V 6 --- --- mA ALERT Output High Leakage Current ALERT forced to 5.5V --- --- 1 µA Logic Input Current Logic inputs forced to Vcc or GND -2 --- 2 µA Note1: Guaranteed but not 100% tested. Note2: Quantization error is not included in specifications for temperature accuracy. For example, if the G767 de- vice temperature is exactly +66.7°C, or +68°C (due to the quantization error plus the +1/2°C offset used for rounding up) and still be within the guaranteed ±1°C error limits for the +60°C to 100°C temperature range. See Table2. Note3: A remote diode is any diode-connected transistor from Table1. TR is the junction temperature of the re- mote of the remote diode. See Remote Diode Selection for remote diode forward voltage requirements. Note4: The SMBus logic block is a static design that works with clock frequencies down to DC. While slow operation is possible, it violates the 10kHz minimum clock frequency and SMBus specifications, and may monopolize the bus. Note5: Note that a transition must internally provide at least a hold time in order to bridge the undefined region (300ns max) of SMBCLK’s falling edge. Note6: Specifications from -55°C to +125°C are guaranteed by design, not production tested. |
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