VMX51C900

www.DataSheet4U.com VMX51C900 Datasheet Rev 1.2 Versa Mix 8051 MCU with LCD Controller and ADC Overview The VMX51C900 is an 8-bit microcontroller with 8KB of Flash memory, 256 bytes of RAM and based on the architecture of the standard 80C51 microcontroller. The VMX51C900 includes extra features such as a 4 Channel 8-bit A/D Converter, 2 PWM outputs and 14 segment x 4 common LCD driver. The VMX51C900 hardware features make it a versatile and cost-effective controller for a wide range of embedded applications. The Flash memory can be programmed using a parallel programmer available from Ramtron. Support is also available from 3rd party commercial programmer manufacturers. The VMX51C900 is available in PLCC-44, QFP-44 and DIP-40 packages and operates over the industrial temperature range. FIGURE 1: VMX51C900 BLOCK DIAGRAM P1.3 P1.2/PWMA P1.1/T2EX P1.0/T2 P4.2 Features 80C51/80C52 pin compatible 8KB on-chip Flash memory 256 Bytes on-chip data RAM 4 8-bit I/O ports and 1 4-bit I/O port 4-Channel, 8-bit A/D Converter LCD Driver: 14-Segment x 4-Common 2-PWM Outputs UART serial port 3 16-bit Timers/Counters Watchdog Timer BCD arithmetic + 8-bit Unsigned Multiply and Division 2 levels of Interrupt Priority and nested Interrupts Power saving modes Low EMI (ALE disable) Code protection function Operates at a clock frequency of up to 25MHz Industrial Temperature range (-40°C to +85°C) 5V version available FIGURE 2: VMX51C900 PLCC-44 AND QFP-44 PIN...