Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Ramtron International | Subject: Versa Mix 8051 family
Edited by the Electronicstalk Editorial
Team on 15 December 2005
Mixed-signal MCUs take DSP operations
onboard
The Versa Mix 8051 family of mixed-signal MCUs provides single-chip solutions for a diverse range of signal conditioning, data acquisition, processing and control applications.
Ramtron has launched the Versa Mix 8051 family (VMX51C1xxx) of mixed-signal microcontrollers - single-chip solutions for a diverse range of signal conditioning, data acquisition, processing and control applications in the industrial, medical, consumer, instrumentation and automotive markets Also available is the Versa 8051 Family (VRS51x1xxx/5xx) of low-cost, industry standard, 8051-based drop-in MCUs with up to128Kbyte ISP/IAP Flash, designed to simplify device migration
This article was originally published on Electronicstalk on 4 Jul 2002 at 8.00am (UK)
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The Versa Mix (VMX51C1020/1016) is a highly integrated, high-performance family of mixed-signal 8051 microcontrollers with DSP capabilities, featuring a comprehensive set of on-chip peripherals for a complete data acquisition SoC.
The VMX51C1xxx features a single-cycle 8051 processor that provides an average of eight times more processing power than standard 8051s for increased MIPS and efficiency.
The device integrates an enhanced multiplier-accumulator unit with 32bit barrel shifter, 56Kbyte of Flash and 1280byte of RAM.
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Peripherals include up to 28 general purpose I/Os, three timers/counters, an SPI, two UARTs, an I2C and an RS485/RS422/J1708 compatible transceiver, which enables data transmission over long distances via a twisted pair cable.
The VMX51C1xxx operates at 5V and is available in QFP-64 (VMX51C1020) and QFP-44 (VMX51C1016) packages.
Aimed at control applications that require signal conditioning, the VMX51C1020 also incorporates an array of analogue peripherals such as a programmable current source, two digital potentiometers, an analogue switch and an uncommitted operational amplifier.
The five- or seven-channel, 12bit A/D convertor can operate at up to 10kHz in various modes: automatic, single channel or sequential conversion.
The enhanced hardware arithmetic unit performs 16 x 16bit multiplication and 32bit addition in one cycle.
This enables major performance gain over typical 8051 devices when executing mathematical and DSP operations - an ideal feature for applications that require digital filtering or other recursive calculations.
The fully configurable master/slave serial port interface can automatically address up to four slave devices and can be configured to handle 1 to +32bit data transactions.
UARTs operate at over 460Kbit/s and each incorporate a 10bit baud rate generator freeing up the timers/counters for other uses.
UARTs can be connected to the integrated differential transceiver.
The VMX51C1xxx includes three 16bit timers and four compare and capture units (CCUs).
The CCUs can be configured as PWM outputs with 8 or 16bit resolution.
The PWMs, when filtered, can be used as D/A convertors.
Three of the CCUs provide a capture input that can be used to trigger the second timer capture.
Additionally, the device includes input pins and an interrupt on the port 1 change.
Power saving features include a clock control unit, individual power controls for each peripheral and processor idle and stop modes.
Ramtron has also introduced the Versa 8051 family (VRS51x1xxx/5xxx) of low-cost, drop-in replacement 8051s that are ideal for a diversity of applications that require small to large amounts of program/data memory with nonvolatile data storage and/or code/field based firmware upgrade capability, coupled with streamlined/comprehensive peripheral support.
Versa 8051s include up to 128Kbyte Flash memory and 1Kbyte RAM.
Devices operate at either 3.3 or 5V and are available in 44-pin PLCC/QFP and also 40-pin DIP packages.
Evaluation and prototype development of Versa Mix 8051 and Versa 8051 MCUs is facilitated through Ramtron's UVK (UniVersaKit) development kit, which ships complete with the Versa Ware programming interface software, C compiler and assembler.
Ramtron MCUs are available immediately with prices ranging from $0.80 to $5.00 for quantities of 10,000.
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