DQ8051

DQ8051 – World’s Fastest 8-Bit 8051 Soft Core CPU

The DQ8051 is an ultra-high performance, speed-optimized 8-bit soft core, delivering a brave new world of capabilities compared to the original 8051 microcontroller. Designed with power efficiency and speed in mind, it is ideal for modern embedded and IoT systems.

Why DQ8051 Stands Out

• World’s Fastest 8051 CPU:
  Achieves 26×–29× higher Dhrystone 2.1 performance than the classic 80C51 at the same frequency, redefining what’s possible for 8-bit microcontrollers.

• Brave New World in Low-Power Operation:
  Can operate over 10× slower clock speeds with no performance penalty, perfect for battery-powered and always-on systems.

• Full Binary Compatibility:
  100% compatible with industry-standard 8051 microcontrollers, enabling legacy code migration with superior performance.

• Built-in DoCD™ On-Chip Debugger:
  Real-time, non-intrusive debugging system for the whole SoC:

  • Halt, run, step into/over instructions

  • Read/write all registers, memories, SFRs, and custom peripherals

  • Supports Keil µVision and standalone DoCD software

• Configurable & Customizable:
  Delivered in an exact configuration for your project, avoiding wasted silicon and unnecessary licensing fees.

• Optimized for Memory Systems:
  Designed to work efficiently with fast on-chip and slower off-chip memories, providing high throughput in complex SoC architectures.

• Advanced Power Management:
  Includes a power management unit (PMU) that maximizes performance-to-power ratio for embedded and IoT devices.

• Verification-Ready:
  Supplied with a fully automated test bench and comprehensive regression tests for seamless SoC integration.

Applications & Advantages

The DQ8051 core offers a quantum leap over traditional 8051s, enabling:

• IoT & connected devices with low power and high performance

• Embedded & industrial systems requiring reliability and efficiency

• Legacy system migration with modernized instruction set and reduced code footprint

With DQ8051, engineers gain a revolutionary 8051 CPU that combines speed, efficiency, and full SoC readiness, creating a new benchmark for 8-bit microcontrollers worldwide.

ALL DCD’S IP CORES ARE TECHNOLOGY AGNOSTIC, ENSURING 100% COMPATIBILITY WITH ALL FPGA AND ASIC VENDORS.

For further details, email info@dcd-semi.com.

• 100% software compatible with 8051 industry standard
• Quad-Pipelined architecture enables to run 29 times faster, than the original 80C51 at the same frequency
• Up to 0.27297 VAX MIPS at 100 MHz
• 24 times faster multiplication
• 12 times faster division
• 2 Data Pointers (DPTR) for faster memory blocks copying
  • Advanced INC & DEC modes
  • Auto-switch of current DPTR
• Up to 256 bytes of internal (on-chip) Data Memory – IDM
• Up to 64k bytes of Program Memory
• Up to 16 MB of external (off-chip) Data Memory – XDM
  • Synchronous interface for up to 64K bytes of (on-chip) fast external Data Memory – (SXDM)
• User programmable Program Memory Wait States solution – for wide range of memories’ speed
• User programmable External Data Memory Wait States solution – for wide range of memories’ speed
• De-multiplexed Address/Data bus – to allow easy memory connection
• Interface for additional Special Function Registers
• Fully synthesizable
• Static synchronous design
• No internal tri-states
• Scan test ready
• USB, Ethernet, I2C, SPI, UART, CAN, LIN, HDLC, Smart Card interfaces available