Targets: Automotive, Computers & Peripherals, Imaging & Video, Industrial, Medical, Motor Control, Security

Ramtron VRS51L3074 Block Diagram

The VRS51L3074 is a Ramtron FRAM-Enhanced 8051-based microcontroller that reaches 40 MIPS and incorporates 8-kbyte of FRAM, 64-kbyte ISP/IAP of Flash, and 4352 bytes of SRAM. The device suits applications that require nonvolatile memory for data storage. The VRS51L3074 uses the same instruction set as standard 8051s.

Its features include a 40 MHz internal oscillator, an enhanced hardware arithmetic unit with 16-bit multiplication/division, 32-bit addition, and a 32-bit barrel shifter for DSP operations, a JTAG-USB interface for in-circuit programming/debugging/emulation, a highly configurable system clock, UARTs with a dedicated baud rate generator (20-bit equivalent resolution), enhanced SPI, I²C, PWCs and PWMs, general purpose timers/counters, a watchdog timer, 49 interrupts that share 16 interrupt vectors, and a port change and pin change interrupt. The VRS51L3174 operates at 3.3 volts over the entire industrial temperature range and features 5V-tolerant I/Os. It is available in a QFP-64 package.

The VersaKit-30xx development and evaluation system facilitates system prototyping and design development with the VRS51L3174. The kit ships with a VJTAG-USB in-circuit programming/debugging interface, programming/in-circuit debugging software, and demo programs. The VersaKit-30xx can also be used to evaluate Ramtron's FRAM memory devices.