INTEGRATED CIRCUITS DIVISION NCD2400M1. Specifications1.1 Package Pinout1.3 Absolute Maximum RatingsParameterMinimum Maximum UnitSDA 16 SCL Supply voltage -0.3 + 6 V SDA, SCL voltage -0.3 VDD + 0.3 V CP 25 GND CP voltage -0.5 VDD + 0.5 V CN voltage CN 34 V V V DD DD < 3.3V DD + 0.5 -0.5 V VDD > 3.3V 3.8 Operating temperature, TA -40 +105 C 1.2 Pin Descriptions Storage temperature, TSTG -55 +125 C PinNameDescription Absolute maximum voltages are with respect to GND. 1 SDA Serial data I/O 2 CP Positive capacitance node Absolute maximum electrical ratings are over the 3 CN Negative capacitance node operating temperature range. 4 VDD Power supply Absolute Maximum Ratings are stress ratings. Stresses in 5 GND Ground excess of these ratings can cause permanent damage to 6 SCL Serial clock input the device. Functional operation of the device at conditions beyond those indicated in the operational sections of this data sheet is not implied. 1.4 Recommended Operating ConditionsParameterSymbolMinimumTypicalMaximumUnit Supply voltage VDD 2.5 3.3 5.5 V Capacitor voltage, CP or CN to GND 1, 2 VDD < 3.3V V V DD + 0.3 CP, VCN -0.3 - VPK VDD > 3.3V 3.6 Non-Volatile Write Programming time 3 tPNV - 5 - ms Operating temperature TA -40 - +105 °C 1 VPK=VDC+VAC is the voltage applied to capacitor pins CP and CN. It should never exceed 3.6V in operation, and should never be less than -0.3V. Sufficient DC bias must be applied to the capacitor pins to prevent the AC signal from violating this specification. Pins CP and CN are not self biased. 2 These maximum values not to exceed the supply voltage; e.g. the maximum voltage drop between CN and GND is 2.8V when VDD=2.5V. 3 There are three erase commands and three non-volatile write commands to program the Non-Volatile Register. This time is for each of the three non-volatile write commands, not the sum of all three commands. The timing requirement also applies to each of the three erase commands, not the sum of all three. 1.5 ESD RatingParameterSymbolConditionsRatingUnit Human body model HBM EIA/JESD22-A114-D +2000 V Charge device model CDM JS002-2014 +500 R01 www.ixysic.com 3 Document Outline Features Applications Description 1. Specifications 1.1 Package Pinout 1.2 Pin Descriptions 1.3 Absolute Maximum Ratings 1.4 Recommended Operating Conditions 1.5 ESD Rating 1.6 General Conditions for Electrical Characteristics 1.7 Capacitor Electrical Characteristics 1.8 Digital Interface: Electrical Characteristics of SDA and SCL 1.9 Digital Interface: AC Characteristics 1.10 Power Supply 2. Performance Data 3. Functional Description 3.1 Introduction 3.2 Capacitive Digital to Analog Converter (CDAC) 3.3 Non-Volatile Memory Configuration 3.4 Device Address 3.5 Operating Modes 3.5.1 Volatile Mode 3.5.2 Non-Volatile Mode 3.6 I2C Serial Interface 3.6.1 Write Commands 3.6.2 Write Volatile Register Operation 3.6.3 Write Non-Volatile Memory Operation 3.6.4 Read Operation 3.6.5 Set Non-Volatile Mode Operation 3.6.6 Electrical and Timing Considerations 3.6.7 Application Diagrams 3.7 Capacitor Interface Electrical and Biasing Considerations 4. Capacitance Determination and Programming Procedure 5. Manufacturing Information 5.1 Moisture Sensitivity 5.2 ESD Sensitivity 5.3 Soldering Profile 5.4 Board Wash 5.5 Mechanical Dimensions 5.5.1 Package Dimensions 5.5.2 Tape & Reel Specification