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    SC51P2320
    Low voltage low power I/O type MCU with built-in high precision oscillator and EEPROM
    Product Description
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    Package Outline
    Description

    SC51P2320 is a 3V I/O type 8-bit low power MCU. It bases on powerful SC51 CPU core and embeds 20K-byte OTP, 768-byte RAM and 1K-byte E2PROM. It integrates comparator, voltage detector, carrier modulation and demodulation module and three configurable timers, which is very suitable for self-learning remote control. It supports three kinds of low power modes and peripheral clock gating, which is very suitable for battery-powered systems.


    Features：

    8 bit SC51 CPU

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

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

    • Programmable system clock pre-divider: 1/2/8/64.

    On-Chip Memory

    • 20K-byte OTP, data retention time > 10 years.

    • 256-byte RAM, 512-byte XRAM.

    • 1K-byte E2PROM. 

    • Data retention time > 10 years@85°, 20000 cycles. 

    • Endurance > 100,000. 

    Programming

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

    • Support Parallel Programming (CPP) Interface. 

    • Support Multi-Time-Programming (MTP):4K×5 / 8K×2 / 20K×1.

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

    Integrated power monitor circuits 

    • Built-In Power-On-Reset (POR).

    • Built-In Low-Voltage-Reset (LVR) with 2 levels selectable: 1.7V and 1.9V.

    • Built-In Low-Voltage-Detect (LVD) with 16 levels selectable.

    Operating Frequency Range

    • Built-In 20KHz low power Oscillator (RCL).

    • Built-In 4MHz high precision Oscillator (RCH) with±1% frequency variation @ -10~50°C, VDD=1.8~3.6V.

    • External 1~8MHz crystal oscillator.

    • CPU maximum operating frequency: 6MHz @ VDD=1.8~3.6V.

    Support 12 Interrupts, including

    • 2 channel external interrupt INT0, INT1 with polarity configurable.

    • Polarity Keyboard-Interrupt (KBI) wakeup interrupt on P1 port with polarity configurable.

    • Carrier Envelope generator interrupt.

    • Carrier Timer interrupt.

    • T0/T1/T2 interrupts.

    • LVD interrupt.

    • ACMP rising edge and falling edge interrupt. 

    • UART transmission interrupt.

    I/O

    • Support up to 18 I/O Ports.

    • Built-in high current open-drain output transistor, IOL=180mA or 250mA @ VOL=0.3V, VDD=3V.

    Peripherals

    • Standard 8051 T0/ T 1.

    • 16-bit T2. 

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

    • Internal Carrier envelope generator (T168).

    • One Analog Comparator (ACMP).

    • Keyboard interrupt controller (KBI).

    • Built-In Watchdog-Timer (WDT).

    • Universal Asynchronous Receiver/ Transmitter

    Support three low power operation Modes

    • IDLE Mode.

    • STOP Mode.

    • Low Voltage Stop Mode.

    Package Type

    • SOP-16-225-1.27.

    • TSSOP-20-225-0.65


    Ordering Information
    Product Name Package Marking Hazardous Substance Control Packing Type
    SC51P2320SC1G SOP-16-225-1.27 SC51P2320SC1G Halogen free Tube
    SC51P2320SC1GTR SOP-16-225-1.27 SC51P2320SC1G Halogen free Tape & Reel
    SC51P2320JT1G TSSOP-20-225-0.65 2320JT1G Halogen free Tube
    SC51P2320JT1GTR TSSOP-20-225-0.65 2320JT1G Halogen free Tape & Reel
    Block Diagram


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