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8051 MCUs
Microcontrollers (MCUs)
Our Versa 8051 microcontrollers offer feature-rich data acquisition solutions for the industrial, consumer, medical, computer, telecom, and automotive markets.
Part
Flash & F-RAM Memory
I/O
Package
Power Supply
Speed
SRAM
VRS51L3074
64KB & 8KB F-RAM
56
QFP-64
3.3V
40MHz
4352B
VRS51L3174
64KB & 8KB F-RAM
40
QFP-44
3.3V
40MHz
4352B
VRS51L3072
64KB & 2KB F-RAM
56
QFP-64
3.3V
40MHz
4352B
VRS51L2070
64KB
56
QFP-44
3.3V
40MHz
4352B
Top 8051 Microcontrollers FAQs
Q: How do I access the F-RAM on the VRS51L3xxx?
A: F-RAM memory is accessed like standard XRAM memory via MOVX instructions, and is mapped from address 8000h to 9FFFh in the XRAM memory.
Q: How many UART serial ports are implemented on the VRS51L2070/3xxx?
A: Two UARTs. Each UART features a 16-bit dedicated baud rate generator.
Q: How much faster is the VRS51L2070/3xxx processor compared to a standard 8051 MCU?
A: Substantially faster: Depending on the benchmark used to compare devices, the difference ranges from about 8 to 12 times faster. For instance, since the VRS51L2070/3xxx does not include a x12 clock divisor between the oscillator and the system clock, theoretically, the VRS51L2070/3xxx is 12 times faster than industry standard 8051 MCUs.
In a recent study conducted by Ramtron, we compared the processing power of the VRS51L2070/3xxx vs. a standard 8051 while executing 16-tap FIR filtering calculations. The VRS51L2070/3xxx performed about 8 times faster than the standard 8051.
Q: Is this the first MCU with F-RAM?
A: Yes.
Q: What are the benefits of F-RAM in comparison to EEPROM on a microcontroller?
A:
Virtually unlimited endurance
Order of magnitude shorter read time
Better noise immunity provided by faster write cycles
Easy access
Q: Which development tools exist for the VRS51L3xxx?
A: The VersaKit-30xx is a plug-and-play evaluation and development kit for the VRS51L3xxx that ships complete with development board, USB-JTAG programming/debugging interface and required software and documentation.
See
MCU Software Support Tools Downloads
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