AMD XC9536XL-10VQ44I

Overview

XC9536XL-10VQ44I from AMD (acquired by Xilinx) is a 36-macrocell CPLD in VQFP-44 package, with 10 ns propagation delay, 5 V tolerant I/O, and in-system programmable via JTAG. It serves as logic glue in industrial control interfaces requiring deterministic timing and reconfigurable combinatorial/sequential functions.

For engineers reviewing the XC9536XL-10VQ44I datasheet, pinout, applications, or equivalent options, key selection criteria include propagation delay budget, I/O voltage tolerance, macrocell count for state machine depth, and JTAG-based field reprogrammability without board removal.

Technical Context

This device implements a classic architecture with three function blocks interconnected via a global routing pool and dedicated product-term sharing. Each macrocell supports registered or combinational output with independent clock, reset, set, and output enable controls.

It uses EEPROM-based nonvolatile configuration storage, enabling instant-on operation after power-up without external configuration memory. The JTAG interface complies with IEEE 1149.1 and supports boundary-scan testing and in-system programming at 5 V.

Key Specifications

Pinout & Package

VQFP-44 (Very Thin Quad Flat Package, 10 mm × 10 mm, 0.8 mm pitch) with exposed thermal pad. Pin 1 marked by corner notch; pins numbered counter-clockwise.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable logic applications.

Compared with XC9536XL-10VQ44I, the XCR3064XL-10VQ44I offers scalable logic capacity within identical timing and packaging constraints, while the XC9572XL-10VQ44I delivers gate-count consolidation without altering PCB layout or timing margins.

Availability

XC9536XL-10VQ44I is available at Aetrix Electronics and suitable for industrial automation, test instrumentation, and medical device manufacturing requiring stable component supply and long-term lifecycle support.

Supply support for XC9536XL-10VQ44I 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 acquired Xilinx in 2022, integrating its programmable logic portfolio including the XC9500XL family. Xilinx originally developed these CPLDs for deterministic, low-latency logic implementation.

The XC9500XL family was designed for cost-sensitive, high-reliability applications requiring instant-on operation, in-system programmability, and robust I/O interfacing in industrial and medical environments.

FAQ

What is the maximum operating frequency supported by the XC9536XL-10VQ44I?

The XC9536XL-10VQ44I guarantees 10 ns propagation delay, enabling reliable operation up to 50 MHz in synchronous logic paths. Actual maximum frequency depends on internal routing and macrocell utilization; timing analysis must be performed per design using Xilinx WebPACK or ISE tools. The XC9536XL-10VQ44I does not specify a fixed f_MAX due to architecture-dependent path delays.

Does the XC9536XL-10VQ44I require an external configuration PROM?

No, the XC9536XL-10VQ44I uses on-chip EEPROM for nonvolatile configuration storage. It powers up fully operational without external configuration memory or startup delay. This feature is intrinsic to the XC9536XL-10VQ44I architecture and eliminates reliance on external PROMs or microcontroller-initiated loading sequences.

Can the XC9536XL-10VQ44I operate with mixed 3.3 V and 5 V supplies?

Yes - the XC9536XL-10VQ44I has separate VCC (3.3 V) and VCCIO (5 V) supplies. This allows the core logic to run at 3.3 V for lower power while interfacing directly with 5 V TTL/CMOS peripherals. The XC9536XL-10VQ44I maintains full 5 V tolerance on all I/O pins regardless of VCCIO voltage setting.

Is JTAG programming supported for the XC9536XL-10VQ44I in production environments?

Yes, the XC9536XL-10VQ44I fully supports IEEE 1149.1 JTAG for in-system programming during production test, field firmware updates, and rework. Production fixtures can program the XC9536XL-10VQ44I without socket removal, and boundary-scan testing verifies solder joint integrity pre- and post-configuration.

What package variants are available for the XC9536XL-10VQ44I?

The XC9536XL-10VQ44I is exclusively offered in the VQFP-44 (10 mm × 10 mm, 0.8 mm pitch) package. No other package options - such as TQFP, PLCC, or CSP - are specified for this speed grade and macrocell count. The XC9536XL-10VQ44I pinout and thermal characteristics are optimized for this VQFP variant.