DS80C320-MCG+

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1. Description

DS80C320-MCG+ is a microcontroller compatible with 80C31/80C32. Wasted clock and The use of redesigned processor cores eliminates memory cycles. As a result, every 8051 instruction The same crystal oscillator speed, the execution speed is 1.5~3 times faster than the original. typical Using the same code and the same crystal, the speed of the application is increased by 2.5 times. DS80C320 Provides a crystal frequency up to 33MHz, resulting in an apparent execution speed of 82.5MHz (About 2.5 times). DS80C320/DS80C323 are compatible with all three package pins of standard 80C32 and provide The same timer/counter, serial port, and I/O port. In short, these devices are very familiar with 8051 Users, but provide the speed of a 16-bit processor. In addition to higher speed, DS80C320 also provides some additional features. These include the second complete hardware Serial port, seven additional interrupts, programmable watchdog timer, power-off interrupt and reset. This The device also provides dual data pointers (DPTR) to speed up the movement of block data memory. Can also be adjusted The access speed of the off-chip data memory is 2-9 machine cycles, which can be selected flexibly Memory and peripherals. The operating voltage range of DS80C320 is 4.25V to 5.5V, which is very suitable as a high-performance Upgrade to an existing 5V system. For applications where power consumption is critical, DS80C323 Provides the same feature set as DS80C320, but the operating voltage is 2.7V to 5.5V.

2. FEATURES

    1. 80C32-Compatible

        - 8051 Pin and Instruction Set Compatible

        - Four 8-Bit I/O Ports

        - Three 16-Bit Timer/Counters

        - 256 Bytes Scratchpad RAM

        - Addresses 64kB ROM and 64kB RAM

    2. High-Speed Architecture

        - 4 Clocks/Machine Cycle (8032 = 12)

        - DC to 33MHz (DS80C320)

        - DC to 18MHz (DS80C323)

        - Single-Cycle Instruction in 121ns

        - Uses Less Power for Equivalent Work

        - Dual Data Pointer

        - Optional Variable Length MOVX to Access

        - Fast/Slow RAM/Peripherals

    3. High-Integration Controller Includes:

        - Power-Fail Reset

        - Programmable Watchdog Timer

        - Early Warning Power-Fail Interrupt

    4. Two Full-Duplex Hardware Serial Ports

    5. 13 Total Interrupt Sources with Six External

    6. Available in 40-Pin DIP, 44-Pin PLCC, and 44-Pin TQFP

3. Pin configuration

4. Pin description