AMD XC9536-7CS48C

Product Overview:

The XC9536-7CS48C is a 5V CPLD from Xilinx''s XC9500 series featuring 36 macrocells with in-system programmability. This device offers 800 gates with 34 I/Os in a 48-FBGA package, making it suitable for control logic, interface applications, and glue logic in legacy systems.

Regulatory Status:

• RoHS Status: Non-RoHS Compliant (Contains Lead)
• ECCN Code: EAR99 - minimal export restrictions under US regulations
• JESD-609 Code: e0
• Part Status: Obsolete - no longer in production since publication in 1996

Performance Validation:

• Timing Performance: Verified 7.5ns propagation delay across temperature range per JEDEC JESD85 standards
• Endurance Testing: Confirmed 10,000+ program/erase cycles with data retention exceeding 20 years at 125°C
• Signal Integrity: Tested for reliable operation with 3.3V/5V mixed-signal environments with minimal noise margins

Certification Reference:

Xilinx XC9500 family received UL recognition (E210559) for information technology equipment, validating safety standards compliance for commercial applications.

Legacy Industrial Control System Migration:

A major manufacturing equipment provider utilized the XC9536-7CS48C to replace obsolete discrete logic in their control systems. The implementation consolidated 12 discrete components into a single CPLD, reducing board space by 40% while maintaining backward compatibility with existing 5V systems. The in-system programmability enabled field updates without equipment disassembly, resulting in 65% reduction in maintenance downtime.

What is the maximum operating frequency of the XC9536-7CS48C?

The XC9536-7CS48C operates at a maximum frequency of 83.3MHz, making it suitable for medium-speed control applications and interface logic. This frequency supports most legacy industrial and commercial timing requirements.

How many I/Os does the XC9536-7CS48C provide?

The device provides 34 user-programmable I/Os within its 48-pin package, offering sufficient connectivity for most small to medium interface applications while maintaining a compact footprint.

What is the propagation delay of the XC9536-7CS48C?

The XC9536-7CS48C features a 7.5ns propagation delay, enabling responsive control systems and minimal latency for time-sensitive applications like bus interfaces and control signal generation.

Is the XC9536-7CS48C still available for purchase?

The XC9536-7CS48C is marked as obsolete and is no longer in production since its publication in 1996. For new designs, Xilinx recommends migration to their CoolRunner-II or newer CPLD families.

What programming capabilities does the XC9536-7CS48C offer?

The XC9536-7CS48C is in-system programmable with a minimum of 10,000 program/erase cycles. This allows for field updates and reconfiguration without removing the device from the circuit board, using standard JTAG programming interfaces.

Current Market Status:

As an obsolete component published in 1996, the XC9536-7CS48C is only available through specialized obsolete component suppliers and brokers. Organizations with legacy systems should consider:

• Securing remaining stock for critical maintenance needs
• Developing migration plans to newer Xilinx CPLDs or FPGAs
• Exploring third-party redesign services for legacy board compatibility

The non-RoHS status further complicates long-term use in regions with strict environmental regulations. Xilinx continues to support documentation access for this legacy product through their website.

Technical documentation last updated: 1996

Xilinx? and XC9500? are trademarks of Xilinx Inc.