Description: 
    ■ A micro-controller is built-in to control for operation.
    ■ Two serial interfaces used for thespecified serial transmission. 
    ■ Up to 32-degrees contrast levels are supported to adjust the LCD. 
    ■ Designed for the featured phone and calculator applications. 
    ■ Provides complete solution for the calculator, phones, and others.
Specification: 
    ■ 8-Bit micro-controller built in
    ■ Operating voltage range: 2.5~5.5V
    
    ■ 48K bytes ROM (Read Only Memory)
    ■ 2.8K bytes RAM (Random Access Memory)
    
    ■ Only single crystal (32768Hz)
    ■ Programmable internal PLL
    ■ Programmable MCU clock rate
        ■ High-Speed : 
            ■  8.388MHz, 4.194MHz, 2.097MHz, 
            ■ 1.049MHz, 524KHz and 262KHz.
        ■ Low speed : 32768Hz.
    ■ MCU Power saving mode: 
        ■ Clock rate = 524KHz, 262KHz and 32768Hz.
    
    ■ Power Management
        ■ Standby mode
        ■ Stop mode
    
    ■ Low voltage detector (LVD) / Comparator
    ■ Programmable Low voltage reset (LVR)
    ■ Advance Power-On Reset (Mask Option)
    ■ Two 8-Bit general-purposed timers
    ■ A watchdog timer against deadlock.
    ■ Seven-level Priority-based interrupts.
    
    ■ I/O ports and Multi-function I/O ports interface.
        ■ I/O port A: interruptable I/O ports with Schmitt trigger.
        ■ I/O port B: non-open drain structure I/O ports.
        ■ Open drain I/O port: 4 pins with heavy sinking capability. 
        ■ Multiple-function I/O ports: 
            ■ SEG33~40 (MPIOA), 
            ■ COM1~8 (MPIOE), 
            ■ COM9~12 (MPIOG),
    
    ■ UART controller
    ■ Universal synchronous serial Interface (SSI)
    ■ Serial Memory Interface (SMI2)
    ■ MCCIN interface with an additional 8-Bit timer
    
    ■ Frequency Shift Keying (FSK) Transmitter
    ■ Ringer/Music tone generator
    ■ No Ring Detector (NRD)
    ■ Auto Key scan function (1/8, 1/16 duty)
    ■ DTONE, VIN, RTIMB, MPORT0~7 with Schmitt trigger & interrupt.
    
    ■ Built-in LCD driver
        ■ Three programmable duties: 1/16, 1/8 or 1/4
        ■ Two programmable biases: 1/5, 1/4, or 1/3
        ■ Maximum 48 segment output pins
        ■ Maximum 16 common output pins
        ■ 32 level brightness adjustment

Package: 
    ■ 128 Pins QFP packaged.