XC9536XL-7VQG44C: High-Performance CPLD by AMD Xilinx | 36 Macrocells, 7.5ns Delay
The XC9536XL-7VQG44C from AMD Xilinx is a cutting-edge Complex Programmable Logic Device (CPLD) designed for high-speed, low-power applications. With 36 macrocells and a maximum propagation delay of 7.5ns, this device excels in timing-critical designs. Its 3V to 3.6V internal supply range makes it compatible with modern low-voltage systems, while the 44-VQFP package (10x10mm) ensures compact PCB integration. The CPLD supports in-system programmability (ISP) with a minimum of 10,000 program/erase cycles, offering unparalleled flexibility for firmware updates and field upgrades. With 34 I/O pins and 800 gates, it balances density and performance for mid-range logic applications.
Engineers will appreciate the XC9536XL-7VQG44C's robust architecture, featuring 2 logic blocks with predictable timing characteristics. The device operates reliably in commercial temperature ranges (0 C to 70 C), making it suitable for industrial control systems, communication interfaces, and consumer electronics. Its 7.5ns pin-to-pin delay enables high-speed data processing, while the 34 user I/Os provide ample connectivity for peripheral interfacing. The CPLD's non-volatile configuration memory retains programming even during power cycles, eliminating the need for external boot devices. AMD Xilinx's proven 5V-tolerant I/Os (with 3.3V core) further enhance compatibility with legacy systems.
This CPLD shines in applications requiring glue logic consolidation, bus interfacing, or state machine implementation. Typical use cases include industrial automation (PLC I/O expansion), automotive electronics (sensor preprocessing), and medical devices (interface bridging). The device's 800-gate capacity efficiently replaces multiple discrete logic ICs, reducing board space and BOM costs. Designers leverage its ISP capability through industry-standard JTAG interfaces (IEEE 1532 compliant) for rapid prototyping. The 44-TQFP package's 0.8mm pitch facilitates manufacturability, while the 7.5ns speed grade (-7 variant) ensures timing closure in demanding applications.
AMD Xilinx's XC9536XL series delivers superior power-to-performance ratio, consuming significantly less current than competing CPLDs during operation. The architecture features advanced FastFLASH technology for instant-on capability, critical for power-sensitive designs. Security features include programming bitstream protection to prevent IP theft. When compared to FPGAs, this CPLD offers deterministic timing and lower static power ideal for always-on subsystems. Reference designs highlight its utility in UART controllers, address decoders, and LED matrix drivers. The XC9536XL-7VQG44C remains a cost-effective solution for legacy system upgrades where full FPGA capabilities are unnecessary.
For procurement, the XC9536XL-7VQG44C is available in tape-and-reel packaging (250 units per reel) with guaranteed 10-year longevity support. AMD Xilinx provides comprehensive development tools including ISE WebPACK software for HDL synthesis and timing analysis. Third-party programmer support (e.g., Xeltek) ensures compatibility with existing engineering workflows. This mature product's AEC-Q100 qualified variants (XC9536XL-7VQG44I) serve automotive applications, while the commercial-grade version detailed here dominates in IoT edge devices and industrial HMI implementations. Its combination of speed, density, and reliability makes it a perennial favorite among hardware designers.
