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GENERAL DESCRIPTION
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The NY9T series IC is a powerful 4-bit micro-controller based LED control processor with capacitive touch sensing function. The RISC MCU architecture is very easy to program and control, and various applications can be easily implemented. There are total 45 instructions, and most of them are executed in one cycle.
Through the accurate 400kHz internal oscillation of +/- 1% tolerance, an external resister is not required. Furthermore, a RC16K mode is designed to save power consumption and a HALT is to minimize the power.
There are maximum 8 channels of PWM-IO LED output. PWM-IO output can provide 4 kinds of analog output current cooperating with 256-level software digital current control to drive different brightness LED. The optional constant current is provided to protect LED, and it’s not necessary to add the external current-limit resistor. The interactive software-developing tool of “Q-Visio” is user-friendly and quick for LED pattern programming.
The Touch-Key function replaces the mechanical switch or button. Multiple Touch-Keys is from 1 touch key up to 16 touch keys. A built-in LDO regulator for touch sensor can provide a stable capacitive sensing design for touch application. The auto distinguishing methodology supports the diversity key pattern in a thickness range of non-conductive dielectric material, and time sharing Touch-Key scan also reduces the power consumption. An innovative software tool “Q-Touch” is provided to develop the different touch applications.
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- Wide operating voltage range: 2.0V to 6.0V.
- 4-bit RISC type micro-controller with 45 instructions.
- Maximum 16Kx10-bit ROM, program and LED data share the same ROM space.
- Maximum 96x4-bit RAM, divided into 2 pages. • 400KHz instruction frequency.
- Precisely 400KHz oscillator with built-in resistor Rosc for operating mode. (+/- 1% tolerance)
- RC16K mode to save the power consumption. (+/- 30% tolerance)
- HALT mode to minimize power, less than 1uA standby current.
- Very low standby current for Touch-Key scan to reduce the power consumption.
- Low Voltage Reset (1.8V), Watch-Dog Reset and I/O Port reset are all supported to protect the system.
- Maximum 24 flexible I/Os with optional function: General purpose I/O, PWM-IO output or Touch-Key input.
- General purpose I/O’s direction is controlled by registers. For the input option, users can select one of three kinds of option: input without pull-low resistor, input with weak pull-low resistor or input with strong pull-low resistor. For the output Port, users can select the CMOS output or Open Drain output with normal sink and drive output.
- Maximum 8-channel PWM-IO output of PE0~3 and PF0~3 shared with I/Os. Each output has other 3 kinds of output option: large sink current, constant sink current (CSC) or drive current.
- PE0~3 and PF0~3 output current option: (PE0~3 and PF0~3) a. Large sink current: 4 kinds of current, 100%, 83%, 50%, 33%. b. Constant sink current: 4 kinds of current, 100%, 83%, 50%, 33%. c. Drive current: only 100% current and constant drive current (CDC) only for PE1 and PE2.
- Programmable PWM-IO has maximum 256 levels LED brightness with software control. The LED frame rate can be selected from 128Hz, 4KHz and 66KHz.
- Maximum 16 Touch-Keys of PA0~3, PB0~3, PC0~3 and PD0~3 shared with I/Os.
- Touch-Key supports simultaneous multi-key or single-key touch function configured by option.
- Hardware Auto-Calibration function of Touch-Key is provided for touch accuracy to prevent the environment change.
- Touch-Key wake-up can be any key or specified key (Key1/PA0) configured by option.
- 2 kinds of scan modes for Touch-Key: normal mode and slow mode, selected by software programming. At normal mode, sequential scan can shorten the touch detecting time but more power consumed. Oppositely, at slow mode, time sharing scan can reduce power consumption but longer wake-up time.
- 4 kinds of debounce time for Touch-Key press/release detection configured by option in order to keep away from the noise interference.
- 2 kinds of hysteresis level: Small Hysteresis Level and Large Hysteresis Level for all Touch-Keys configured by option.
- 2 kinds of sensitivity mode: Preset mode and Custom mode for all Touch-Keys configured by option.
- 8 kinds of sensitivity levels can be selected by software programming or external RADJ resistor.
- Built-in LDO regulator (2.1V) for a stable power that avoids the abnormal sensitivity and false detection.
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NY9T 시리즈에 대한 데이터 쉬트는 여기를 클릭하세요. |
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