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DS1803E-100 Datasheet(PDF) 7 Page - Dallas Semiconductor |
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DS1803E-100 Datasheet(HTML) 7 Page - Dallas Semiconductor |
7 / 11 page DS1803 7 of 11 ANALOG RESISTOR CHARACTERISTICS (-40 °C to +85°C;V CC=2.7V to 5.5V) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES End-to-End Resistor Tolerance -20 +20 % 17 Absolute Linearity ±0.75 LSB 13 Relative Linearity ±0.3 LSB 14 -3 dB Cutoff Frequency fCUTOFF Hz 11 Temperature Coefficient 750 ppm/C Capacitance CI 5 pF AC ELECTRICAL CHARACTERISTICS (-40 °C to +85°C;V CC=2.7V to 5.5V) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES SCL Clock Frequency fSCI 0 0 400 100 kHz 16 17 Bus Free Time Between STOP and START Condition tBUF 1.3 4.7 µs 16 17 Hold Time (Repeated) START Condition tHD;STA 0.6 4.0 µs 5 Low Period of SCL Clock tLOW 1.3 4.7 µs High Period of SCL Clock tHIGH 0.6 4.0 µs Data Hold Time tHD;DAT 0 0 0.9 µs 6,7 Data Setup Time tHD;DAT 100 250 ns 8 Rise Time of both SDA and SCL Signals tR 20+1CB 300 1000 ns 9 Fall Time of both SDA and SCL Signals tF 20+1CB 300 300 ns 9 Setup Time for STOP Condition tSU;STO 0.6 4.0 µs Capacitive Load for each Bus Line CB 400 pF NOTES: 1. All voltages are referenced to ground. 2. I/O pins of fast mode devices must not obstruct the SDA and SCL lines if VDD is switched off. 3. ICC specified with SDA pin open SCL = 400 kHz clock rate. 4. ICC specified with VCC at 5.0V and SDA, SCL = 5.0V, -40 °C to +85°C. |
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