AMD XC9536XL-10PC44I

Overview

XC9536XL-10PC44I from AMD (acquired by Xilinx) is a 36-macrocell CPLD in a 44-pin PLCC package, with 10 ns propagation delay, 5 V tolerant I/O, and in-system programmable via JTAG. It serves as a glue logic replacement in legacy industrial control backplanes.

For engineers reviewing the XC9536XL-10PC44I datasheet, pinout, applications, or equivalent options, key selection factors include macrocell count, I/O voltage tolerance, JTAG programmability, and PLCC thermal and mechanical compatibility with through-hole PCBs.

Technical Context

This device belongs to the XC9500XL family of high-performance, low-voltage CPLDs built on 0.35 µm CMOS technology. It implements registered and combinatorial logic using sum-of-products architecture with local feedback paths and global clock routing.

Each macrocell supports independent product-term sharing, configurable output polarity, and synchronous/asynchronous reset/set. The device includes four global clock inputs and two global output enables, enabling flexible timing control in multi-function logic designs.

Key Specifications

Pinout & Package

XC9536XL-10PC44I uses a 44-pin Plastic Leaded Chip Carrier (PLCC) package with 1.27 mm pitch, 16.59 mm × 16.59 mm body, and J-lead profile suitable for socketed or reflow-soldered mounting.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar CPLD-based glue logic applications.

Compared with XC9536XL-10PC44I, the XC9572XL-10PC44I offers direct pin-compatible scalability, while the XCR3064XL-10VQ44C provides higher density in a modern footprint but mandates I/O voltage adaptation-making XC9536XL-10PC44I uniquely suited for cost-sensitive, drop-in 5 V system upgrades.

Availability

XC9536XL-10PC44I is available at Aetrix Electronics and suitable for industrial control, medical diagnostics, and avionics legacy sustainment programs requiring stable component supply and long-term obsolescence management.

Supply support for XC9536XL-10PC44I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

AMD developed the XC9500XL family before its programmable logic business was acquired by Xilinx in 2001; Xilinx continued manufacturing and support under the same part numbering and specifications.

The XC9500XL series was designed specifically for low-power, in-system programmable replacement of obsolete PAL/GAL devices in industrial and telecom infrastructure where reliability and long-lifecycle support are critical.

FAQ

What is the maximum operating frequency supported by XC9536XL-10PC44I?

The XC9536XL-10PC44I has a 10 ns maximum propagation delay, enabling reliable operation in synchronous logic paths up to 50 MHz. This specification applies to internal register-to-register paths under worst-case industrial temperature and voltage conditions, as verified in the official Xilinx Advance Data Sheet DS057.

Does XC9536XL-10PC44I require a UV eraser for reprogramming?

No, XC9536XL-10PC44I does not require UV erasure. It is an EEPROM-based CPLD with in-system programmability via IEEE 1149.1 JTAG. Reprogramming can be performed repeatedly in-circuit using standard boundary-scan tools without removing the device from the PCB.

Can XC9536XL-10PC44I interface directly with 5 V TTL logic?

Yes, XC9536XL-10PC44I features 5 V-tolerant I/O pins while operating on a 3.3 V core supply. Input thresholds and drive strength comply with TTL voltage levels, allowing direct connection to 5 V logic without external level shifters or resistive dividers.

What package type is used for XC9536XL-10PC44I?

XC9536XL-10PC44I uses a 44-pin Plastic Leaded Chip Carrier (PLCC) package with J-leads, 16.59 mm × 16.59 mm body size, and 1.27 mm lead pitch. This through-hole compatible package supports socketing and wave soldering for legacy board assembly.

Is XC9536XL-10PC44I still in active production?

XC9536XL-10PC44I is no longer in active production by Xilinx but remains available through authorized distributors and Aetrix Electronics' extended lifecycle program, with guaranteed traceable sourcing and obsolescence mitigation support for legacy system maintenance.