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NY8AE51D

     RISC architecture is applied to NY8AE51D and it provides 53 instructions.  
     As NY8AE51D address I/O type applications, it can provide 6 I/O pins for applications which require abundant input and output functionality.  
    NY8AE51D also provides 2 sets of timers which can be used as regular timer based on system oscillation or event counter with external trigger clock.
    NY8AE51D employs dual-clock oscillation mechanism, both high oscillation or low oscillation can be derived from internal resistor/capacitor oscillator. 
    NY8AE51D General Description:
        NY8AE51D is a MTP/EEPROM based 8-bit MCU tailored for I/O based applications like remote controllers, fan/light controller, game controllers, toy and various controllers. The MTP offers the advantage of convenient and effective way of developing user program. The EEPROM, unlike SRAM, features data retention after IC is powered off. NY8AE51D adopts advanced CMOS technology to provide customers remarkable solution with low cost and high performance benefits. RISC architecture is applied to NY8AE51D and it provides 53 instructions. All instructions are executed in single instruction cycle except program branch and skip instructions which will take two instruction cycles. Therefore, NY8AE51D is very suitable for those applications that are sophisticated but compact program size is required.
         As NY8AE51D address I/O type applications, it can provide 6 I/O pins for applications which require abundant input and output functionality. Moreover, each I/O pin may have additional features, like Pull-High/Pull-Low resistor and open-drain output type through programming. Moreover, NY8AE51D has built-in infrared (IR) carrier generator with selectable IR carrier frequency and polarity for applications which demand remote control feature.
    NY8AE51D also provides 2 sets of timers which can be used as regular timer based on system oscillation or event counter with external trigger clock. Moreover, NY8AE51D provides 3 set of 10-bit resolution Pulse Width Modulation (PWM1/2/3) output and 1 set buzzer output in order to drive motor/LED and buzzer.
        NY8AE51D employs dual-clock oscillation mechanism, both high oscillation or low oscillation can be derived from internal resistor/capacitor oscillator. Moreover, based on dual-clock mechanism, NY8AE51D provides kinds of operation mode like Normal mode, Slow mode, Standby mode and Halt mode in order to save power consumption and lengthen battery operation life.
        While NY8AE51D operates in Standby mode and Halt mode, kinds of event will issue interrupt requests and can wake-up NY8AE51D to enter Normal mode and Slow mode in order to process urgent events.

    NY8AE51D Features
     Wide operating voltage range: (@ 4 CPU clock per instruction, i.e. 4T mode) 
       2.4V ~ 5.5V @system clock ≦8MHz.
     Wide operating temperature: -40°C ~ 85°C.
     1K x 14 bits MTP.
     64 bytes SRAM.
     64 bytes EEPROM.
     6 general purpose I/O pins (GPIO), PB[5:0], with independent direction control. ? PB[3:0] have features of Pull-Low resistor for input pin.
     PB[5:0] have features of Pull-High resistor, and open-drain output.
     8-level hardware Stack.
     Direct and indirect addressing modes for data access.
     One 8-bit up-count timer (Timer0) with programmable prescaler.
     One 10-bit reload or continuous down-count timers (Timer1).
     Three 10-bit resolution PWM (PWM1/2/3) output.
     One buzzer (BZ1) output.
     Selectable 38/57KHz IR carrier frequency and high/low polarity according to data value.
     Built-in Power-On Reset (POR).
     Built-in high-precision Low-voltage detector(LVD) .
     Built-in Low-Voltage Reset (LVR).
     Built-in 16-segment Low-Voltage Detect (LVD).
     Built-in Watch-Dog Timer (WDT) enabled/disabled by firmware control.
     Dual-clock oscillation: System clock can switch between high oscillation and low oscillation.
       High oscillation: I_HRC (Internal High Resistor/Capacitor Oscillator ranging from 1M~20MHz)
       Low oscillation:  I_LRC (Internal 32KHz oscillator)
     Four kinds of operation mode to reduce system power consumption: 
       Normal mode, Slow mode, Standby mode and Halt mode.
     Seven hardware interrupt events:
       Timer0 overflow interrupt.
       Timer1 underflow interrupt.
       WDT timeout interrupt.
       PB input change interrupt.
       External interrupt.
       LVD interrupt.
       End of EEPROM write interrupt.
     Six interrupt events to wake-up NY8AE51D from Standby mode: 
       Timer0 overflow interrupt.
       Timer1 underflow interrupt.
       WDT timeout interrupt.
       PB input change interrupt.
       External interrupt.
       LVD interrupt.
     Three interrupt events to wake-up NY8AE51D from Halt mode: 
       WDT timeout interrupt.
       PB input change interrupt.
       External interrupt.
     There are two current options (Small / Normal )can be selected.

    NY8AE51D Block Diagram:

    NY8AE51D Pin Assignment
    NY8AE51D provides three kinds of package type which are SOP8 and SOT23-6.


    NY8AE51D Pin 
    Description:


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