XC9572XL-5VQG44C

Overview

The XC9572XL-5VQG44C is a Complex Programmable Logic Device (CPLD) from the AMD XC9500XL family, manufactured by AMD. It features 72 macrocells and 1600 usable gates organized into four Logic Array Blocks (LABs). The device operates at a supply voltage of 3.0 V to 3.6 V with a typical current consumption of 20 mA. It offers a maximum propagation delay of 5 ns and supports system frequencies up to 178 MHz. Housed in a 44-pin Very Thin Quad Flat Package (VQFP), it utilizes Flash memory technology for non-volatile configuration and supports System In-Programmability (SIP) with over 10,000 erase/program cycles.

Feature Summary

• High-performance architecture with 5 ns pin-to-pin logic delays and 178 MHz maximum frequency.
• Flash-based non-volatile storage enabling System In-Programmability (SIP) and JTAG access.
• 5V tolerant I/O pins compatible with 5V, 3.3V, and 2.5V signaling standards.
• Optimized for low-power operation using advanced 0.35 micron CMOS technology.

Applications

• High-speed interface bridging between legacy systems and modern components.
• Address decoding and control logic generation in embedded systems.
• State machine implementation for industrial automation controllers.
• Replacement for legacy GALs or PALs in existing hardware designs.

Procurement Notes

This component is classified as obsolete and no longer manufactured by AMD. Availability is restricted to surplus stock from third-party distributors. Verification of part authenticity and condition is critical due to the limited supply chain. Buyers should confirm the specific revision level and packaging integrity before acquisition, as original factory production has ceased.

Selection Notes

Select this CPLD when a design requires moderate logic density (72 macrocells) with fast switching speeds (5 ns delay). It is suitable for applications needing 34 user I/O pins in a compact 44-pin VQFP footprint. Ensure the design environment supports 3.3V logic levels while accommodating 5V tolerant inputs if interfacing with older peripherals. Consider the end-of-life status and plan for long-term supply continuity strategies.

Part Context

The XC9572XL belongs to the XC9500XL family, which succeeded the original XC9500 series. This family introduced Flash technology to eliminate the need for external EPROM programmers and enabled multiple reprogrammings. The '5' suffix indicates the 5 ns speed grade, while 'VQG44' specifies the 44-pin VQFP package with commercial temperature range and Pb-free construction.

Replacement Considerations

Publicly confirmed substitute part numbers include ATF1504ASV-15AU44 from Microchip Technology. Alternative sources may list parts from Lattice Semiconductor Corporation or Efinix, Inc., though these require verification of pin compatibility and logical equivalence against the original datasheet specifications.