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LP3971 Datasheet(PDF) 16 Page - Texas Instruments |
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LP3971 Datasheet(HTML) 16 Page - Texas Instruments |
16 / 52 page LP3971 SNVS432V – JANUARY 2006 – REVISED MAY 2013 www.ti.com I 2C Compatible Serial Interface Electrical Specifications (SDA and SCL) Unless otherwise noted, VIN = 3.6V. Typical values and limits appearing in normal type apply for TJ = 25°C. Limits appearing in boldface type apply over the entire junction temperature range for operation, −40°C to +125°C. (1) (2) and (3) Symbol Parameter Conditions Min Typ Max Units VIL Low Level Input Voltage (4) −0.5 0.3 V VRTC VIH High Level Input Voltage (4) 0.7 VRTC VRTC VOL Low Level Output Voltage (4) 0 0.2 VTRC IOL Low Level Output Current VOL = 0.4V (4) 3.0 mA FCLK Clock Frequency (4) 400 kHz tBF Bus-Free Time Between Start and Stop (4) 1.3 μs tHOLD Hold Time Repeated Start Condition (4) 0.6 μs tCLKLP CLK Low Period (4) 1.3 μs tCLKHP CLK High Period (4) 0.6 μs tSU Set Up Time Repeated Start Condition (4) 0.6 μs tDATAHLD Data Hold Time (4) 0 μs tCLKSU Data Set Up Time (4) 100 ns TSU Set Up Time for Start Condition (4) 0.6 μs TTRANS Maximum Pulse Width of Spikes that Must (4) 50 ns be Suppressed by the Input Filter of Both DATA & CLK Signals (1) All voltages are with respect to the potential at the GND pin. (2) All limits specified at room temperature and at temperature extremes. All room temperature limits are production tested, specified through statistical analysis or by design. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). (3) The I2C signals behave like open-drain outputs and require an external pull-up resistor on the system module in the 2 k Ω to 20 kΩ range. (4) Specified by design. Not production tested 16 Submit Documentation Feedback Copyright © 2006–2013, Texas Instruments Incorporated Product Folder Links: LP3971 |
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