Product Features

• Wide operating voltage range:  

  2.0V ~ 5.5V @system clock ≦8MHz.

  2.2V ~ 5.5V @system clock ＞8MHz.

  Wide operating temperature: -40°C ~ 85°C.

  512 x 14 bits EPROM.

  32 bytes SRAM.

  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 for input pin.

  PB[5:4] and PB[2:0] have features of open-drain output.

  PB[3] have feature of input or open-drain output.

  4 level hardware Stack.

  Direct and indirect addressing modes for data access.

  One 8-bit up-count timer (Timer0) with programmable prescaler.

  Built-in Power-On Reset (POR).

  Built-in Low-Voltage Reset (LVR).

  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.

  Three hardware interrupt events:

  Timer0 overflow interrupt.

  PB input change interrupt.

  External interrupt.

  Three interrupt events to wake-up NY8A050D from Standby mode:

  Timer0 overflow interrupt.  

  PB input change interrupt.

  External interrupt.

  Two interrupt events to wake-up NY8A050D from Halt mode:

  PB input change interrupt.

  External interrupt.