D8254

D8254 IP Core — Programmable Interval Timer/Counter for Embedded Systems

High-Precision Timer and Counter IP Core

The D8254 IP Core from DCD-SEMI is a programmable interval timer and counter, fully binary compatible with the 82C54 industry standard. Designed for high-precision timing applications, it provides a reliable solution for generating accurate time delays under software control, a common challenge in microcomputer and embedded systems.

Versatile Applications

The D8254 can be configured for a wide variety of applications, including:

• Real-Time Clock (RTC)

• Event Counter

• Digital One-Shot

• Programmable Rate Generator

• Square Wave Generator

• Binary Rate Multiplier

• Complex Waveform Generator

• Motor Controller Applications

• Interrupt on Terminal Count

This flexibility makes the D8254 ideal for SoC designs, FPGA implementations, and microcontroller-based systems.

Advanced Features and Technology Independence

• Automated Test Bench: Includes a complete set of tests for easy validation during each stage of the SoC design flow

• Technology-Independent Design: Easily integrated into FPGA, ASIC, or SoC platforms

• Binary Compatibility: Ensures seamless replacement of the legacy 82C54 timer

The D8254 combines precision, reliability, and versatility, empowering engineers to implement complex timing and control functions efficiently.

Why Choose DCD-SEMI D8254 IP Core

• Programmable interval timer/counter compatible with 82C54 standard

• Supports a wide range of timing and waveform generation applications

• Automated test bench for fast verification and integration

• Technology-independent design for FPGA, ASIC, and SoC use

• Ideal for real-time control, motor systems, and embedded microcomputer applications

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

For technical specifications, integration support, or customization options, contact info@dcd-semi.com

• Three independent 16-bit counters
• Six programmable Counter modes
  • Interrupt on terminal count
  • Hardware retriggerable One-Shot
  • Rate Generator
  • Square wave mode
  • Software triggered strobe
  • Hardware triggered strobe
• Binary or BCD counting
• Status Read Back Command
• Simple interface allows easy connection to microcontrollers
• Fully synthesizable
• Static design and no internal tri-states