NT1080 Datasheet, PDF (2/22 Pages) List of Unclassifed Manufacturers – 8-bit Microcontroller

NT1080
Table of Contents
1 General Description .............................................................................. 4
2 Features ............................................................................................ 5
3 Pin Diagram ....................................................................................... 6
4 Capacitive Touch Key ............................................................................ 7
4.1 Input Circuit ............................................................................................ 7
4.2 Sensor Pad and Ground for PCB Layout.......................................................... 7
4.3 Sensor Pad Size ...................................................................................... 8
5 I²C Interface ....................................................................................... 9
5.1 Byte-Write.............................................................................................. 9
5.2 Random-Read......................................................................................... 9
5.3 Continual-Read ......................................................................................10
5.4 I²C Circuit .............................................................................................10
6 I²C Data Definition .............................................................................. 11
6.1 Memory Address.....................................................................................11
6.2 Address 0x00: Product No..........................................................................12
6.3 Address 0x01: Button No. ..........................................................................12
6.4 Address 0x02: Version No. .........................................................................12
6.5 Address 0x03: I²C Device Address ...............................................................12
6.6 Address 0x04: System Control Bits ...............................................................12
6.7 Address 0x06: Output Mode Settings.............................................................13
6.8 Address 0x07: Enable Sense Pin .................................................................14
6.9 Address 0x0C: De-Bounce .........................................................................14
6.10 Address 0x0D: Plus Times .........................................................................14
6.11 Address 0x0E: Sensor Cycle.......................................................................14
6.12 Address 0x0F: Calibration Delay ..................................................................14
6.13 Address 0x10: Status................................................................................14
6.14 Address 0x11: Key status ..........................................................................14
6.15 Address 0x15: LED Control ........................................................................15
6.16 Address 0x20~0x27：Trigger Level ..............................................................15
6.17 Address 0x40~0x4F：Sensor Value..............................................................15
7 GPIO.............................................................................................. 16
8 Reference Schematic .......................................................................... 18
Oct 26, 2015
Page 2 of 22
Rev 1.0