VRS51C1100

www.DataSheet4U.com VRS51C1100 Datasheet Rev 1.1 Versa 8051 MCU with 128KB of IAP/ISP Flash Overview The VRS51C1100 is based on the standard 8051 microcontroller architecture and is a pin compatible drop-in replacement for the 8051. The VRS51C1100 is aimed at a diversity of applications that require a large amount of program/data memory with non-volatile data storage and/or code/field based firmware upgrade capability coupled with comprehensive peripheral support. It features 64KB of In-System/In-Application Programmable Flash memory, 64KB Data Flash memory, 1KB of RAM, 4 PWM outputs, a UART, three 16-bit timers/counters, a watchdog timer and power down features. The VRS51C1000 is available with firmware that enables In-System Programming (firmware based bootloader) of the Flash memory via the UART interface (ISPVx version). General Flash memory programming is supported by device programmers available from Ramtron or other 3rd party commercial programmer suppliers. The VRS51C1100 is available in PLCC-44, QFP-44 and DIP-40 packages and functions over the industrial temperature range. FIGURE 1: VRS51C1100 FUNCTIONAL DIAGRAM Feature Set 80C51/80C52 pin compatible 64KB Program + 64KB Data Flash memory In-System / In-Application Flash Programming (ISP/IAP) Program voltage: 5V 1024 Bytes on chip data RAM Four 8-bit I/Os + one 4-bit I/O 4 PWM outputs on P1.3 to P1.7 One Full Duplex UART serial port Three 16-bit Timers/Counters Watchdog Timer ...