CT369 DATASHEET_V1.0
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CT369Mutual Touch Panel ControllerData SheetVersion 1.0VTL Technology Co.,LTD.Revision HistoryVersion Content DateRelease 2012/10/091.0 FirstIndex1 Features (4)2 Description (4)3 Block Diagram (5)4 Pin Configuration (6)5 Pad Description (8)6 Oscillator (10)7 SPI Interface (11)8 I2C Interface (12)9 Absolute Maximum Rating (13)10 DC Elertrical Characteristics (13)11 Application circuits (14)1. Features⏹ System Operation voltage: 2.7V~3.6V⏹ VDDIO: from 1.65V~3.6V⏹ CMOS technology combine MCU, Serial Interface and ADC peripheral for low powerconsumption application⏹ Support up to 96 capacitive sensing channels⏹ Build in a Micro-Processor (uP) core- Update to 32K bytes program memory- Standard 256 bytes internal data memory- 36Kbytes data memory⏹ Serial Interface- Either I2C Slave mode Interface or SPI Slave mode Interface for general purpose application. ⏹ Fully programmable scan sequence⏹ Support detection Position, ID, Area and force of maximum 10 fingers⏹ Data update rate: Up to 10ms update rate for one finger operation⏹ Power management- Normal operation mode- Idle mode- Serial interface mode- Deep sleep mode⏹ Palm Rejection⏹ Water Proof2. DescriptionThe CT369 is a mutual type sensor IC provides up to 96 capacitive sensing channels. CT369 builds in an MCU which integrated with 32K bytes flash and 256 bytes internal RAM.According to ADC raw counts, CT369 can determine finger on/off status and also transfer on/off status into XY position or any touch event.CT369 builds in power management block and provides idle, serial interface and deep sleep mode to reduce IC power consumption. CT369 supports I2C and SPI serial interfaces.3. Block DiagramFigure 1. System Block Diagram4. Pin Configuration4.1. Package TQFP 128Figure 2. Package TQFP1284.2. Package outline dimension TQFP1285. Pad DescriptionTable 1. Pad DescriptionDesignation I/O 功能说明AIN0 I/O Touch sensor I/O AIN1I/O Touch sensor I/O AIN2I/O Touch sensor I/O AIN3I/O Touch sensor I/O AIN4I/O Touch sensor I/O AIN5I/O Touch sensor I/O AIN6I/O Touch sensor I/O AIN7I/O Touch sensor I/O AIN8I/O Touch sensor I/O AIN9I/O Touch sensor I/O AIN10I/O Touch sensor I/O AIN11I/O Touch sensor I/O AIN12I/O Touch sensor I/O AIN13I/O Touch sensor I/O AIN14I/O Touch sensor I/O AIN15I/O Touch sensor I/O AIN16I/O Touch sensor I/O AIN17I/O Touch sensor I/O AIN18I/O Touch sensor I/O AIN19 I/O Touch sensor I/O AIN20 I/O Touch sensor I/O AIN21 I/O Touch sensor I/O AIN22 I/O Touch sensor I/O AIN23 I/O Touch sensor I/O AIN24 I/O Touch sensor I/O AIN25 I/O Touch sensor I/O AIN26 I/O Touch sensor I/O AIN27 I/O Touch sensor I/O AIN28 I/O Touch sensor I/O AIN29 I/O Touch sensor I/O AIN30 I/O Touch sensor I/O AIN31 I/O Touch sensor I/O AIN32 I/O Touch sensor I/O AIN33 I/O Touch sensor I/O AIN34 I/O Touch sensor I/O AIN35 I/O Touch sensor I/O AIN36 I/O Touch sensor I/O AIN37 I/O Touch sensor I/O AIN38 I/O Touch sensor I/O AIN39 I/O Touch sensor I/O AIN40 I/O Touch sensor I/O AIN41 I/O Touch sensor I/O AIN42 I/O Touch sensor I/O AIN43 I/O Touch sensor I/O AIN44 I/O Touch sensor I/O AIN45 I/O Touch sensor I/O AIN46 I/O Touch sensor I/O AIN47 I/O Touch sensor I/O AIN48 I/O Touch sensor I/O AIN49 I/O Touch sensor I/O AIN50 I/O Touch sensor I/O AIN51 I/O Touch sensor I/O AIN52 I/O Touch sensor I/O AIN53 I/O Touch sensor I/O AIN54 I/O Touch sensor I/OAIN55 I/O Touch sensor I/OAIN56 I/O Touch sensor I/OAIN57 I/O Touch sensor I/OAIN58 I/O Touch sensor I/OAIN59 I/O Touch sensor I/OAIN60 I/O Touch sensor I/OAIN61 I/O Touch sensor I/OAIN62 I/O Touch sensor I/OAIN63 I/O Touch sensor I/OAIN64 I/O Touch sensor I/OAIN65 I/O Touch sensor I/OAIN66 I/O Touch sensor I/OAIN67 I/O Touch sensor I/OAIN68 I/O Touch sensor I/OAIN69 I/O Touch sensor I/OAIN70 I/O Touch sensor I/OAIN71 I/O Touch sensor I/OAIN72 I/O Touch sensor I/OAIN73 I/O Touch sensor I/OAIN74 I/O Touch sensor I/OAIN75 I/O Touch sensor I/OAIN76 I/O Touch sensor I/OAIN77 I/O Touch sensor I/OAIN78 I/O Touch sensor I/OAIN79 I/O Touch sensor I/OAIN80 I/O Touch sensor I/OAIN81 I/O Touch sensor I/OAIN82 I/O Touch sensor I/OAIN83 I/O Touch sensor I/OAIN84 I/O Touch sensor I/OAIN85 I/O Touch sensor I/OAIN86 I/O Touch sensor I/OAIN87 I/O Touch sensor I/OAIN88 I/O Touch sensor I/OAIN89 I/O Touch sensor I/OAIN90 I/O Touch sensor I/OAIN91 I/O Touch sensor I/OAIN92 I/O Touch sensor I/OAIN93 I/O Touch sensor I/OAIN94 I/O Touch sensor I/OAIN95 I/O Touch sensor I/OGPIO and Serial InterfaceSCK / P0.0 I/O Clock pad of I2C /SPI Slave mode serial interfaceGPIO: P0.0MOSI / P0.1I/O SPI: Slave mode data inputI2C: Slave mode SDA PadGPIO: P0.1MISO / P0.2I/O SPI: Slave mode data outputGPIO: P0.2CSB/P0.3 I/O SPI: Slave mode chip Select input pinGPIO: P0.3SS / P0.4I/O SPI, I2C requestGPIO: P0.4TP_SYNC / P0.5I/O TP_SYNC or H_SYNC Input padGPIO: P0.5( default )GPIO:P0.6P0.6 I/OSystem ResourceRSTB I CT365 Global Reset input.VCC C Core Power (1.8V)VDD PI Main Power Input for Digital (2.7V~3.6V)VADC PI Main Power Input for Analog (2.7V~3.6V)VDDIO PI GPIO logic level.(1.65V ~ 3.6V)GND P Digital GroundAGND P Analog GroundDC/DCC1P/C1M C Flying Capacitor 1 Pos/Neg InputC2P/C2M C Flying Capacitor 1 Pos/Neg InputC3P/C3M C Flying Capacitor 1 Pos/Neg InputVINT1PO Output voltage of DC/DC stage1VINT2PO Output voltage of DC/DC stage2VINT3 PO Output voltage of DC/DC stage3Legend: I: Input, O: Output, P: Power, D: Dummy, S: Shorted line, M: Mark, PI: Power input, PO: Power output,T: Testing, I/ O: Input / Output. PS: Power Setting, C: Capacitor pin.6. OscillatorThe CT369 provides an internal RC ring counter for main clock source. Firmware programmer can onfigure OSC_DIV to select different clock resource for CT369 MCU and peripherals.7. SPI Interface8. I2C Interface9. Absolute Maximum RatingLogic supply voltage -0.3V to 3.6VStorage temperature -50℃ to 100℃Operating temperature -20℃ to 85℃Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only. Functional operation of this device at these or under any other conditions above those indicated in the operational sections of this specification are not implied and exposure to absolute maximum rating conditions for extended periods may affect device reliability.10. DC Electrical Characteristics (V DD=3.0V, GND=0V)For the digital circuit11. Application Circuit。