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ADT7310TRZ-REEL Datasheet(PDF) 4 Page - Analog Devices |
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ADT7310TRZ-REEL Datasheet(HTML) 4 Page - Analog Devices |
4 / 24 page ADT7310 Rev. 0 | Page 4 of 24 SPI TIMING SPECIFICATIONS TA = −55°C to +150°C, VDD = 2.7 V to 5.5 V, unless otherwise noted. All input signals are specified with rise time (tR) = fall time (tF) = 5 ns (10% to 90% of VDD) and timed from a voltage level of 1.6 V. Table 2. Parameter1, 2 Limit at TMIN, TMAX (B Version) Unit Conditions/Comments t1 0 ns min CS falling edge to SCLK active edge setup time3 t2 100 ns min SCLK high pulse width t3 100 ns min SCLK low pulse width t4 30 ns min Data valid to SCLK edge setup time t5 25 ns min Data valid to SCLK edge hold time t6 0 ns min SCLK active edge to data valid delay3 60 ns max VDD = 4.5 V to 5.5 V 80 ns max VDD = 2.7 V to 3.6 V t74 10 ns min Bus relinquish time after CS inactive edge 80 ns max t8 0 ns min CS rising edge to SCLK edge hold time t9 0 ns min CS falling edge to DOUT active time 60 ns max VDD = 4.5 V to 5.5 V 80 ns max VDD = 2.7 V to 3.6 V t10 10 ns min SCLK inactive edge to DOUT high 1 Sample tested during initial release to ensure compliance. All input signals are specified with tR = tF = 5 ns (10% to 90% of VDD) and timed from a voltage level of 1.6 V. 2 See Figure 2. 3 SCLK active edge is falling edge of SCLK. 4 This means that the times quoted in the timing characteristics are the true bus relinquish times of the part and, as such, are independent of external bus loading capacitances. CS SCLK DIN DOUT t1 1 8 7 MSB LSB 23 MSB LSB 12 7 8 t2 t4 t5 t3 t6 t7 t8 t9 t10 Figure 2. Detailed SPI Timing Diagram 1.6V 10pF TO OUTPUT PIN ISINK (1.6mA WITH VDD = 5V, 100µA WITH VDD = 3V) ISOURCE (200µA WITH VDD =5V, 100µA WITH VDD = 3V) Figure 3. Load Circuit for Timing Characterization |
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