XC9536-15PC44C

Complex Programmable Logic Devices Overview

The XC9536-15PC44C is a Flash-based Complex Programmable Logic Device (CPLD) from the Xilinx XC9500 family, originally manufactured by Xilinx before its acquisition by AMD. This component features 36 macrocells and up to 800 usable logic gates within a 44-pin PLCC package. It supports in-system programmability via JTAG, allowing for design updates without removing the chip from the circuit board. The device operates at a maximum system frequency of 100 MHz with a typical pin-to-pin delay of 15 ns, suitable for general-purpose digital logic applications requiring non-volatile configuration.

Complex Programmable Logic Devices Feature Summary

• Flash-based technology enabling non-volatile storage and in-system programming
• 36 macrocells with flexible 36V18 function block architecture
• Up to 34 user I/O pins supporting various logic standards
• Endurance of 10,000 program/erase cycles over full voltage range

Complex Programmable Logic Devices Applications

• General-purpose logic replacement for discrete TTL/CMOS circuits
• Address decoding and bus interface control in embedded systems
• State machine implementation for industrial control applications
• Level shifting and protocol conversion between different voltage domains

Complex Programmable Logic Devices Procurement Notes

Verify the manufacturer origin carefully, as the XC9500 series was originally a Xilinx product line acquired by AMD. Ensure the specific suffix indicates the correct speed grade (-15 for 15ns delay) and package type (PC44 for PLCC-44). Check for RoHS compliance status if required for modern manufacturing processes, as older stock may vary in environmental certifications.

Complex Programmable Logic Devices Selection Notes

Select this component when a small number of macrocells (36) and moderate I/O count (up to 34) are sufficient for the design. The -15 speed grade offers a balance between performance and power consumption for commercial temperature ranges. Consider the XC9536XL variant if lower voltage operation (3.3V) is required instead of the standard 5V supply.

Complex Programmable Logic Devices Part Context

This part belongs to the XC9500 family of CPLDs, which were widely adopted for their ease of use and in-system programmability. Although AMD now owns the intellectual property, these devices are often still referenced by their original Xilinx part numbers in legacy designs and documentation.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements include other variants in the XC9500 family such as the XC9536-10PC44C or XC9536-7PC44C for faster speeds. For low-voltage applications, the XC9536XL series may serve as a functional alternative, though voltage level compatibility must be verified.