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[GOAL SEMICONDUCTOR]

Overview

The VRS700 is a 3V, 8-bit microcontroller with 64kB of Flash memory and 4K RAM that is based on the architecture of the standard 80C51 microcontroller family. It is pin compatible with these devices.

Among the VRS700’s features are 8 PWM outputs, a Watch Dog Timer, bank mapping to permit direct addressing of the 4096 bytes of RAM and a serial port.

The VRS700’s hardware features and powerful instruction set make it a versatile and cost-effective controller for a wide range of applications requiring a microcontroller running at 3V.

The Flash memory can be programmed using programmers available from Goal Semiconductor or other 3rd party commercial programmers.

The VRS700 is available in PLCC-44 and QFP-44 packages in the Industrial Temperature Range.

Features

• Operating voltage: 3.0V ~ 3.6V

• General 80C51/80C52 family compatible

• 64kB on-chip Flash memory

• 4096 bytes on-chip data RAM

• Bank mapping direct addressing mode to access RAM

• Four 8-bit I/O ports + one 4-bit I/O port

• 8-Channel PWM on P1.0~P1.7

• Full duplex serial port (UART)

• Three 16-bit Timers/Counters

• Watch Dog Timer

• 8-bit Unsigned Multiply and Division Instructions

• BCD arithmetic

• Direct and Indirect Addressing

• Two levels of Interrupt Priority and Nested Interrupts

• Power saving modes

• Code protection functions

• Operates at a clock frequency from 3MHz to 23MHz

• Low EMI (inhibit ALE)

• Industrial Temperature Range (-40ºC to +85ºC)