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MCU line targets data acquisition apps

Posted: 16 Dec 2005     Print Version  Bookmark and Share

Keywords:Ramtron International  Versa Mix 8051  VMX51C1xxx  microcontroller  mcu 

Ramtron Int. Corp. has launched its Versa Mix 8051 family (VMX51C1xxx) of mixed-signal microcontrollers. The single-chip solutions are targeted at signal conditioning, data acquisition, processing and control applications in the industrial, medical, consumer, instrumentation and automotive markets. Ramtron also offers its Versa 8051 family (VRS51x1xxx/5xx) of low-cost, industry standard, 8051-based drop-in microcontrollers with up to 128KB ISP/IAP flash, designed to simplify device migration.

The VMX51C1xxx (VMX51C1020/1016) is a highly integrated, high-performance, mixed-signal 8051 with DSP capabilities, featuring a comprehensive set of on-chip peripherals for a complete data acquisition SoC. The enhanced hardware arithmetic unit performs 16bit 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 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 MULT/ACCU unit with 32bit barrel shifter, 56KB of flash and 1.28KB of RAM. Peripherals include up to 28 general purpose I/Os, 3 timers/counters, an SPI, 2 UARTs, an I_C and an RS-485/RS-422/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 microcontrollers are already available with prices ranging from Rs.36.68 (80 cents) to Rs.229.25 ($5) for quantities of 10,000. Evaluation and prototype development of Versa Mix 8051 and Versa 8051 microcontrollers is facilitated through Ramtron's UVK (UniVersaKit) development kit, which ships complete with Versa Ware programming interface software, C compiler and assembler.

- Marty Gold

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