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DS1615 Datasheet(PDF) 22 Page - Dallas Semiconductor |
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DS1615 Datasheet(HTML) 22 Page - Dallas Semiconductor |
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22 / 24 page ![]() DS1615 22 of 24 AC ELECTRICAL CHARACTERISTICS (-40 °C to +85°C; V CC=5.0V ±10%) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Vcc rise/fall time tR/tF Delay from ST to INSPEC or OUTSPEC Active tSS 560 ms Delay from Specification to INSPEC or OUTSPEC Active tCS 560 ms Temperature Conversion Time tCONV 150 200 ms INSPEC and OUTSPEC Active Low Pulse Width tSL 62.5 ms INSPEC and OUTSPEC High Duration tSH 437.5 ms ASYNCHRONOUS INTERFACE TIMING (-40 °C to +85°C; V CC=5.0V ±10%) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Date Rate f BIT 9,408 9,600 9,792 bits/sec 2 Turnaround Time tTURN 2/fBIT s SYNCHRONOUS (3-WIRE) SERIAL INTERFACE TIMING (-40 °C to 85°C; V CC=5.0V ±10%) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Data to SCLK Setup tDC 50 ns 3 SCLK to Data Hold tCDH 70 ns 3 SCLK to Data Delay tCDD 200 ns 3,4, 5 SCLK Low Time tCL 250 ns 3 SCLK High Time tCH 250 ns 3 SCLK Frequency tCLK DC MHz 3 SCLK Rise and Fall tR , tF 2.0 ns RST to SCLK Setup tCC 1 500 µs 3 SCLK to RST Hold tCCH 60 ns 3 RST Inactive Time tCWH 1 µs 3 RST to I/O High Z tCDZ 70 ns 3, 7 SCLK to I/O High Z tCCZ 70 sn 3, 7 NOTES: 1. All voltages are referenced to ground, 2. The data rate fBIT is equal to 1/tBIT 3. Measured with VIH= 3.0V or VIL= 0.0V and 10 ns maximum rise and fall time. 4. Measured at VOH=2.4V or VOL=0.4V. 5. Load Capacitance = 50 pF. 6. Thermometer error reflects temperature error as tested during calibration. 7. Sampled with 5 pF load. Not 100% tested. 8. Comsel pin leakage 3=200 µA. |
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