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VMX1C1020 Dataheets PDF



Part Number VMX1C1020
Manufacturers Ramtron
Logo Ramtron
Description Versa Mix 8051 Mixed-Signal MCU
Datasheet VMX1C1020 DatasheetVMX1C1020 Datasheet (PDF)

www.DataSheet4U.com VMX1C1020 Datasheet Rev 2.12 Versa Mix 8051 Mixed-Signal MCU Overview The VMX51C1020 is a fully integrated mixed-signal microcontroller that provides a “one-chip solution” for a broad range of signal conditioning, data acquisition, processing, and control applications. The VMX51C1020 is based on a powerful single-cycle, RISC-based, 8051 microprocessor with an enhanced MULT/ACCU unit that can be used to perform complex mathematical operations. On-chip analog peripherals such.

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www.DataSheet4U.com VMX1C1020 Datasheet Rev 2.12 Versa Mix 8051 Mixed-Signal MCU Overview The VMX51C1020 is a fully integrated mixed-signal microcontroller that provides a “one-chip solution” for a broad range of signal conditioning, data acquisition, processing, and control applications. The VMX51C1020 is based on a powerful single-cycle, RISC-based, 8051 microprocessor with an enhanced MULT/ACCU unit that can be used to perform complex mathematical operations. On-chip analog peripherals such as: an A/D converter, PWM outputs (that can be used as D/A converters), a voltage reference, a programmable current source, an uncommitted operational amplifier, digital potentiometers and an analog switch makes the VMX51C1020 ideal for analog data acquisition applications. The inclusion of a full set of digital interfaces such as an enhanced fully configurable SPI, an I2C interface, UARTs and a J1708/RS-485/RS-422 compatible differential transceiver, enables total system integration. Feature Set o o o o o o o o o 8051 Compatible RISC performance Processor. Integrated Debugger 56KB Flash Program Memory 1280 Bytes of RAM MULT/ACCU unit including a Barrel Shifter o Provides DSP capabilities 2 UART Serial Ports 2 Baud Rate Generators for UARTs Differential Transceiver connected to UART1 J1708/RS-485/RS-422 compatible. Enhanced SPI interface (Master/Slave) o Fully Configurable o Controls up to 4 slave devices I2C interface 28 General Purpose I/Os 2 External Interrupt Inputs Interrupt on Port 1 pin change 3, 16-bit Timers/Counters 4 Compare & Capture Units with 3 Capture Inputs 4 PWM outputs, 8-bit / 16-bit resolution 4 ext. + 3 int. Channel 12-bit A/D Converter o Conversion rate up to 10kHz o 0-2.7 Volt Input range Continuous / One-Shot operation o Single or 4-channel automatic sequential conversions On-Chip Voltage Reference Programmable Current Source Operational Amplifier 2 Digital Potentiometers 1 Digitally Controlled Switch Power Saving Features + Clock Control Power-on Reset with Brown-Out Detect Watchdog Timer o o o o o o o o Applications o o o o o Automotive Applications Industrial Controls / Instrumentation Consumer Products Intelligent Sensors Medical Devices o o o o o o o o FIGURE 1: VMX51C1020 BLOCK DIAGRAM 8051 µPROCESSOR SINGLE CYCLE In- Circuit Debugging t h r o u g h U A R T0 FIGURE 2: VMX51C1020 QFP-64 PACKAGE PINOUT Programmable Current Source 2 UARTs Serial Ports P3.7 - SCL NC NC 4 8 1 2- BIT A / D CONVERTER ISRCIN, ISRCOUT, OPOUT are internally connected to A /D Input Multiplexer 5 6 KB Program FLASH ( In -Circuit Programmable ) XTVREF Input Band gap Reference 1280 Bytes RAM PGA (2 5 6 x 8 & 1 k X8 ) AGND INT0 PM RESISRCOUT – TA ISRCIN POT2A POT2B VDDA ADCI3 ADCI2 ADCI1 ADCI0 XTVREF AGND OPOUT P3.6 – SDA VPP P3.5 – T1IN P3.4 – CCU1 P3.3 – CCU0 VDD P3.2 – T0IN P3.1 – RX0 P3.0 – TX0 OSC0 OSC1 P1.7 P1.6 33 32 A/D input Mux. 49 P1.5 P1.4 VDD P2.7 – SDI P2.6 – SDO P2.5 – SCK P2.4 – SSP2.3 – CS0P2.2 – CS1P2.1 – CS2P2.0 – CS3DGND.


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