XC95108-20PC84I

Complex Programmable Logic Devices Overview

The XC95108-20PC84I is a Complex Programmable Logic Device (CPLD) from the AMD/Xilinx XC9500 family, manufactured by Advanced Micro Devices. It features 108 macrocells and 2400 usable gates organized into 6 Logic Array Blocks (LABs). The device operates at a maximum frequency of 125 MHz with a typical propagation delay of 20 ns. It utilizes Flash memory technology for non-volatile configuration, supporting system-in-programmability with over 10,000 erase/program cycles. The component is housed in an 84-pin PLCC package and supports a supply voltage range of 4.75V to 5.25V.

Complex Programmable Logic Devices Feature Summary

• 108 Macrocells and 2400 Gates
• Flash Memory Technology
• System-In-Programmable (SIP)
• 84-Pin PLCC Package

Complex Programmable Logic Devices Applications

• Digital logic interface conversion
• Address decoding and chip select generation
• State machine implementation
• Bus protocol bridging

Complex Programmable Logic Devices Procurement Notes

Verify manufacturing origin as the part may be produced under AMD or legacy Xilinx branding. Confirm RoHS compliance status, as older XC9500 variants may not meet current environmental standards. Check for moisture sensitivity level (MSL 3) handling requirements during storage and assembly. Ensure the specific suffix 'I' denotes industrial temperature range (-40°C to +85°C) if required by application specs.

Complex Programmable Logic Devices Selection Notes

Select this model when 108 macrocells are sufficient for the design complexity. The 20ns delay suits moderate-speed digital applications. Compare against higher-density XC95144 or lower-density XC9572 variants if resource usage differs. Verify that the 5V I/O levels match the target system voltage; use level shifters if interfacing with 3.3V logic without explicit tolerance data.

Complex Programmable Logic Devices Part Context

This component belongs to the XC9500 CPLD family, which introduced Flash-based reprogrammability to the market. It succeeded the EEPROM-based XC9500XL series in terms of density but shares similar architecture. The XC95108 variant offers a balance between pin count and logic resources, making it suitable for mid-range control applications.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-to-pin replacements within the same family include XC95108-15PC84I (faster speed grade) or XC95108-25PC84I (slower speed grade). For modern equivalents, consider Lattice Semiconductor's MachXO or CrossLink-N families, though these require design adaptation due to architectural differences.