XC95108-15PC84I

Complex Programmable Logic Devices Overview

The XC95108-15PC84I is a Complex Programmable Logic Device (CPLD) from the AMD/Xilinx XC9500 family. It features 108 macrocells, 2400 usable gates, and six Logic Array Blocks (LABs). The device operates at a maximum frequency of 66 MHz with a typical propagation delay of 15 ns. It utilizes Flash memory technology for non-volatile configuration and supports system-in-system programming. The component is housed in an 84-pin PLCC package and functions within a supply voltage range of 4.75 V to 5.25 V.

Complex Programmable Logic Devices Feature Summary

• Flash-based non-volatile architecture enabling instant-on functionality without external configuration memory.
• High-density logic structure comprising 108 macrocells distributed across six Logic Array Blocks.
• Supports In-System Programming (ISP), allowing reprogramming on the PCB without removal.
• Operates on a single 5V power supply with robust ESD protection characteristics.

Complex Programmable Logic Devices Applications

• Address decoding and bus bridging in embedded systems.
• Translation between different logic families or voltage levels.
• State machine implementation for control logic.
• Replacement of legacy GALs and PALs in industrial equipment.

Complex Programmable Logic Devices Procurement Notes

Verify manufacturer authenticity as the XC9500 series has been discontinued by AMD/Xilinx. Check for obsolescence notices and ensure components are sourced from authorized distributors to avoid counterfeits. Confirm RoHS compliance status if required for modern manufacturing standards, as original versions may not meet current regulations.

Complex Programmable Logic Devices Selection Notes

Select this model when 108 macrocells are sufficient for the design logic. Ensure the 84-pin PLCC footprint matches the PCB layout. Verify that the 15 ns speed grade meets timing requirements; faster variants like the -7 speed grade exist but offer higher performance at potentially higher cost. Confirm 5V operation compatibility with all connected I/O devices.

Complex Programmable Logic Devices Part Context

This part belongs to the XC9500 CPLD family, which bridges the gap between simple programmable logic devices and high-density FPGAs. The XC95108 variant specifically provides 108 macrocells, making it suitable for medium-complexity logic applications. The 'I' suffix denotes an industrial temperature range (-40°C to +85°C), distinguishing it from commercial grade parts.

Complex Programmable Logic Devices Replacement Considerations

Microchip ATF15xxASV series and Lattice LC4000V series are potential functional replacements. Verify pinout compatibility and logic density equivalence before substitution. Note that some alternatives may require different programming tools or voltage level adjustments.