XC9572-10PC84I

Overview

The XC9572-10PC84I is a Complex Programmable Logic Device (CPLD) from the AMD/Xilinx XC9500 series, manufactured using CMOS FastFLASH technology. It features 72 macrocells and 1600 system gates organized into four Logic Array Blocks (LABs). The device operates at a maximum frequency of 125 MHz with a typical pin-to-pin propagation delay of 10 ns. It supports in-system programming via JTAG with endurance for at least 10,000 erase/program cycles. The component utilizes a 44-pin PLCC package variant within its family specifications, though the model suffix indicates specific packaging; it functions on a 5V supply voltage and supports commercial temperature ranges.

Feature Summary

• 72 Macrocells and 1600 System Gates
• 10 ns Maximum Propagation Delay
• 5V In-System Programming (ISP)
• JTAG Boundary Scan Support

Applications

• Digital logic interface conversion
• Address decoding and bus bridging
• State machine implementation
• Gate replacement for legacy TTL logic

Procurement Notes

Verify the exact package type against official datasheets, as XC9572 devices are available in multiple packages including PLCC and PQFP. Confirm RoHS compliance status, as older XC9500 variants may not meet current environmental standards. Check for end-of-life notifications or obsolescence notices from AMD/Xilinx prior to procurement.

Selection Notes

Select this component when 72 macrocells are sufficient for the design complexity. Ensure the 10 ns speed grade meets timing requirements. Verify that the target system provides a 5V power rail compatible with the device's I/O levels. Consider the package availability if PCB space constraints require a specific footprint like PLCC or TQFP.

Part Context

This part belongs to the XC9500 CPLD family, which introduced non-volatile Flash memory technology for reprogrammability without UV erasure. The XC9572 variant specifically offers a mid-range density suitable for moderate logic applications. The 'I' suffix typically denotes an industrial temperature range, while 'PC84' suggests a specific package configuration distinct from the PC44 variant found in other models.

Replacement Considerations

Direct pin-compatible replacements may be limited due to package variations. Consider XC9572 variants with different speed grades or packages from the same family. Cross-vendor alternatives such as Lattice MachXO or Microchip ATF series may require schematic and layout modifications.