DFPIC1655X: High Performance Configurable 8-bit RISC MCU

DCD LogoThe DFPIC1655X is a low-cost, high performance, 8-bit, fully static soft IP Core, dedicated for operation with fast memory (typically on-chip). The core has been designed with a special concern about low power consumption.

The DFPIC1655X is software compatible with the industry standard PIC16C554 and PIC16C558. It employs a modified RISC architecture (2 times faster than original implementation).

The DFPIC1655X have enhanced core features, configurable hardware stack, and multiple internal and external interrupt sources. The separate instruction and data buses allow a 14 bit wide instruction word with the separate 8 -bit wide data. The DFPIC1655X typically achieve a 2:1 code compression and a 8:1 speed improvement over other 8-bit microcontrollers in their class.

The power-down mode SLEEP allow user to reduce power consumption. User can wake up the controller from SLEEP through several external and internal interrupt and reset. An integrated Watchdog Timer with it's own clock signal provides protection against software lock-up.

The DFPIC1655X Microcontroller fits perfectly in applications ranging from high-speed automotive and appliance motor control to low-power remote transmitters/receivers, pointing devices and telecom processors. Built-in power save mode and small used area in programmable devices make this IP perfect for applications applications with space and power consumption limitations.

DFPIC1655X is delivered with fully automated testbench and complete set of tests allowing easy package validation at each stage of SoC design flow.


  • Software compatible with industry standard PIC16C55X
  • Harvard architecture 2 times faster compared to original implementation
  • 35 instructions
  • 14 bit wide instruction word
  • Up to 512 bytes of internal Data Memory
  • Up to 64K bytes of Program Memory
  • Configurable hardware stack
  • Power saving SLEEP mode
  • Fully synthesizable, static synchronous design with no internal tri-states
  • Scan test ready
  • Technology independent HDL Source Code

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Block Diagram

Performance and Size

Device Speed grade Fmax LUTs PFUs
XP -5 57 MHz 757 203
ECP -5 62 MHz 757 203
EC -5 62 MHz 757 203

Ordering Information

This IP core is supported and sold by DCD, contact DCD at support@dcd.pl or visit their website at www.dcd.pl for more information.