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    SC51P18A16 Datasheet
    Low power 8-bit MCU integrated with LCD driver and charge pump
    Product Description
    Documents
    Tools & Software
    Package Outline
    Description

    SC51P18A16 is an 8-bit MCU integrated with LCD driver and charge pump. It uses SC51 core with built-in 16K-byte OTP and 512-byte RAM, 8MHz high precision RC oscillator, rail-to-rail analog comparator, flexible clock system, rich timer resource and communication interface, which designed for various control applications. It features 1.8V~3.6V operating voltage range, low display current in IDLE mode, and ultra-low Stop current, which makes it well suitable for the battery-powered systems.

     

    Features：

    8 bit SC51 CPU

    • Compatible with MCS51 instruction set, dual DPTR; support software reset instruction.

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

    On-Chip Memory

    • 16K-byte OTP, data retention time > 10 years.

    • 512-byte RAM.

    • Support In-System-Programming (ISP), only 5 pins are needed (including VDD/VSS).

    • Support multi-time-programming (MTP): 4Kx4 times/8Kx2 times/16Kx1 time.

    • Support OTP page encryption, page size: 4K.

    Power supply and Reset

    • Operating voltage: 1.8V~3.6V.

    • Built-In Power-On-Reset (POR).

    • Built-In Low-Voltage-Reset (LVR) with 2 levels selectable:1.7V, 2.4V.

    • Built-In Low-Voltage-Detect (LVD) with 8 levels selectable:2.0V, 2.1V, 2.2V, 2.3V, 2.4V, 2.5V, 2.7V, 3.0V.

    • Built-in watchdog (WDT).

    System clock 

    • Built-In 32KHz low frequency Oscillator (RCL).

    • Built-In 8MHz high precision Oscillator (RCH), ±1% @VDD=1.8~3.6V, TA=-10~50℃.

    • External 1~8MHz high frequency crystal oscillator or External 32.768KHz low frequency crystal oscillator, configured by information byte.

    • Pre-scale factors for system clock: 8/4/2/1.

    • CPU maximum operating frequency: 8MHz @VDD=2.4V~3.6V.

    Input/output

    • Support up to 54 I/O Ports. 

    • Built-in high current open-drain output transistor, IOL=200mA or 230mA @ VOL=0.3V, VDD=3V.

    • Keyboard Interrupt wake-up function at P0,P1,P2,P4 (total 32 pins), interrupt polarity selectable.

    • 4-channel external interrupt, interrupt polarity selectable.

    Peripherals

    • 2 channel 16-bit Timers (T0/T1), compatible with traditional MCS51. T0 supports square wave output while T1 supports PWM output.

    • 1 channel 16-bit Timer2 with capture function. 

    • 1 channel Carrier Timer for carrier modulation and demodulation (CRT).

    • 1 channel 8-bit PWM generator, with arbitrary settable period and high 6-bit settable duty cycle (low 2 bits fixed as 0). 

    • 1 channel 8-bit WT timer, generating Buzzer output with 4 kinds of frequency selectable (8K/4K/2K/1KHz).

    • 1 channel UART with configurable high-precision baud rate.

    • 1 channel SPI, supporting up to 4Mbps @system clock = 8MHz.

    • 1 channel rail-to-rail analog comparator (ACMP) with 16 levels reference voltage selectable, which source is selectable between band gap voltage(VBG) and VDD .

    • Built-in LCD driver with charge pump, supporting up to 4*36, 5*35 and 6*34 segment, 1/2 and 1/3 bias selectable. 

    Operation Modes

    • Normal mode.

    • IDLE mode.

    • STOP mode.

    Package Type

    • LQFP-44-10*10-0.8

    • LQFP-48-7*7-0.5

    • LQFP-64-10*10-0.5


    Ordering Information
    Product Name Package Marking Hazardous Substance Control Packing Type
    SC51P18A16LAG LQFP-44-10×10-0.8 18A16LAG Halogen free Tray
    SC51P18A16LLG LQFP-48-7×7-0.5 18A16LLG Halogen free Tray
    SC51P18A16LBG LQFP-64-10×10-0.5 18A16LBG Halogen free Tray
    Block Diagram


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