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    SC51P1816
    Low power 8-bit MCU with LCD driver
    Product Description
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    Package Outline
    Description

    SC51P1816 is an 8-bit MCU with LCD driver. It uses SC51 core with built-in 16K-byte OTP and 512-byte RAM. SC51P1816 integrates PLL to generate 4.194MHz main clock from the 32768Hz low frequency clock, which reduces the system cost and avoids the interference of external high frequency oscillator in noise-sensitive applications. So, this IC is particularly suitable for low-noise and low-power applications.

    Features：

    • Compliance with MCS51 instructions; dual DPTR; add software trap instructions.

    • Improved instruction structure, the execution time of 90% instructions is two to four clock cycles.

    • 16K-byte OTP supporting 8K-byte MTP every time; 512-byte RAM.

    • Support In-System Programming (ISP) with only five pins.

    • Built-in power on Reset (POR) and low voltage reset (LVR).

    • Built-in one analog comparator (ACMP).

    • Built-in watch timer (WT).

    • 4COM×32SEG LCD driver. 3 level adjustable for LCD driver capacity; 7 level adjustable for LCD gray scale; 1/2 and 1/3 bias selectable.

    • One buzzer frequency signal output.

    • One 8-bit low frequency pulse width modulation (PWM) output.

    • 42 I/O ports 

    • Port P1 (8 pins) has keyboard interrupt awake function with settable interrupt polarity. Four external interrupt inputs with settable interrupt polarity. 

    • Built-in watchdog timer (WDT). 

    • Three 16-bit standard timers.

    • Built-in carrier timer (CRT) for carrier modulation and demodulation.

    • One UART interface.

    • Built-in 30KHz and 6MHz RC oscillators.

    • External 1~16MHz high frequency oscillator and 32768Hz low frequency oscillator.

    • Built-in phase-locked loop (PLL) generates 4.194MHz internal main clock from low frequency clock.

    • Prescale setting for system clock.

    • Sleep mode and shutdown mode. 

    • Operating voltage: 2.2V~3.6V; typical operating current: 2mA@4MHz, typical value of display standby current: 6A@3V, and shutdown current is less than 1μA.

    • 48-pin LQFP package.


    Ordering Information
    Product Name Package Marking Hazardous Substance Control Packing Type
    SC51P1816LL LQFP-48-7×7-0.5 SC51P1816LL Halogen free Tray
    Block Diagram


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