XC9536-6VQ44C - 36-Macrocell 5 ns CPLD | AMD | TQFP-44
MPN: XC9536-6VQ44C ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
XC9536-6VQ44C Overview
A CPLD is a user-programmable digital logic device that combines macrocell-based logic resources with electrically erasable nonvolatile configuration memory. It occupies the hierarchy between simple fixed-function gates and larger FPGAs. The XC9500 family is suited to general-purpose logic integration where deterministic timing, in-system programming, parallel programming of multiple devices, and compact 5 V implementation simplify board-level design.
Key features include 36 macrocells, 800 usable gates, 34 I/O pins, 5 ns pin-to-pin logic delays, and 100 MHz maximum operating frequency as listed in the retrieved product data. In-system programmability supports a minimum of 10,000 program and erase cycles. Multiple XC9500 devices can be programmed in parallel, which is useful for replicated or coordinated logic sections. The family also provides advanced in-system test capabilities.
The XC9536 architecture consists of two 36V18 function blocks, providing 800 usable gates and 5 ns propagation delays according to the family datasheet excerpt. Commercial-grade identification supports general industrial, instrumentation, control, interface, and legacy system designs, but the retrieved specification states that this exact order contains lead and is RoHS non-compliant. Those constraints require review before use in new lead-free procurement programs.
Typical uses include industrial control logic, legacy peripheral emulation, instrumentation signal routing, board-level glue logic, and compact control systems. The 44-pin TQFP is easy to inspect and solder but is larger and has more leads than modern fine-pitch packages. System designers should account for its 5 V supply requirements, non-RoHS status, and the need to verify every unused pin and programming interface against the manufacturer datasheet.
For drop-in alternatives, speed-, temperature-, and package-suffix variants in the XC9536 family must be checked against the required I/O, timing, and qualification criteria. A lower speed grade is not automatically a drop-in substitute for timing-critical designs. This page combines verified specifications, sourcing information, engineering guidance, and clearly marked data gaps rather than presenting undocumented values as guaranteed facts.
Drop-in alternatives for XC9536-6VQ44C — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
XC9536-6VQ44I
✅ Drop-In📋 Reference alternative (not in catalog)
XC9536-7VQ44I
✅ Drop-In📋 Reference alternative (not in catalog)
XC9536-6VQ44CE
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
XC9536-6VQ44C Maximum Ratings & Electrical Characteristics
| Product Type | Complex Programmable Logic Device (CPLD) |
| Programming Type | In-System Programmable, minimum 10,000 program/erase cycles |
| Macrocells | 36 macrocells |
| Usable Gates | 800 gates |
| User I/O | 34 I/O |
| Maximum Frequency | 100 MHz |
| Pin-to-Pin Logic Delay | 5 ns |
| Supply Voltage | 5 V |
| Technology | 0.5 µm Advanced CMOS 5V FastFLASH technology |
| Architecture | Two 36V18 function blocks |
| Package | 44-pin TQFP |
| Package Type | TQFP |
| Package Shape | Square |
| Terminals | 44 gull-wing terminals |
| Temperature Grade | Commercial |
| Parallel Device Programming | Supported for multiple XC9500 devices |
| In-System Test | Advanced in-system test capabilities supported |
| Lead-Free Status | Contains lead |
| RoHS Status | RoHS non-compliant |
| Program Memory Type | FLASH |
XC9536-6VQ44C square Pin Configuration Guide
Pin configuration for XC9536-6VQ44C (square package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for XC9536-6VQ44C.
Refer to the datasheet for full pin configuration.
Typical Applications
XC9536-6VQ44C is suitable for 6 applications: Industrial Control and Automation Logic, Legacy Peripheral Interface and Bus Decoding, Instrumentation Signal Routing, Board-Level Glue Logic, Programmable Test Fixture Control, Network and Communications Control.
Industrial Control and Automation Logic
The XC9536-6VQ44C fits compact industrial controller logic where a 5 V CPLD can consolidate timing, sequencing, and interface functions. Its 36 macrocells and 800 usable gates provide enough logic for state machines, interlocks, and signal conditioning, while the 5 ns pin-to-pin delay supports short combinational paths. The 44-pin TQFP also exposes 34 user I/O for sensors, actuators, and bus transceivers. The main engineering caveat is the commercial C temperature grade; confirm the documented operating range for factory-floor temperatures before deployment.
Recommended
Legacy Peripheral Interface and Bus Decoding
The XC9536-6VQ44C is useful for emulating or coordinating legacy peripheral interfaces through its 34 I/O and two 36V18 function blocks. Address decoding, chip-select generation, interrupt arbitration, and protocol timing can be consolidated into one nonvolatile logic device without using a larger FPGA. Its 100 MHz listed maximum frequency and 5 ns pin-to-pin delay provide useful timing margin for conventional control buses. Designers should verify every I/O standard and setup/hold condition in the XC9536 family datasheet.
Recommended
Instrumentation Signal Routing
In instrumentation equipment, the XC9536-6VQ44C can manage deterministic switch sequencing, trigger routing, measurement-mode selection, and status interlocks. Its 36 macrocells are well suited to compact finite-state machines, and FLASH configuration permits repeatable in-system programming during production or maintenance. The 5 ns pin-to-pin delay helps minimize dead time between command decoding and control outputs. For precision analog measurement, however, the CPLD should control digital signals rather than directly process sensitive analog nodes.
Recommended
Board-Level Glue Logic
The XC9536-6VQ44C can replace scattered combinational gates, latches, and small state machines with one programmable device. Thirty-six macrocells allow designers to consolidate power sequencing, reset distribution, interrupt control, and peripheral arbitration, while 34 I/O provide broad connectivity. The 44-pin TQFP is larger than a modern QFN but remains practical for through-hole-compatible or leaded legacy assembly. The verified source identifies this exact order as RoHS non-compliant and containing lead, so procurement review is essential for new designs.
Recommended
Programmable Test Fixture Control
The XC9536-6VQ44C supports test fixture control through parallel programmable I/O, deterministic sequencing, and in-system reconfiguration. It can coordinate relay drive, DUT stimulus, pass/fail capture, and fixture mode selection using a compact logic footprint. Because its configuration is stored in FLASH, each fixture board can be reprogrammed for different DUT families without replacing logic devices. Engineers should use unused pins according to the datasheet and confirm that programming states during fixture power-up do not create unsafe fixture outputs.
Recommended
Network and Communications Control
The XC9536-6VQ44C can implement low-speed communication controllers, packet filters, frame synchronizers, and status logic around a host processor or dedicated interface IC. Its 34 I/O and 5 ns delay are appropriate for deterministic handshake and control functions, while nonvolatile in-system programming supports field configuration. The part is not a substitute for a soft processor inside a high-throughput FPGA, so designers should keep latency-critical framing logic local and move complex packet processing elsewhere. The 5 V interface level must match the connected transceiver.
Recommended
Recommended Products Summary
Engineering reference data for XC9536-6VQ44C — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | XC9536-6VQ44I | XC9536-7VQ44I | XC9536-6VQ44CE | XC9536-6PC44C | XC9536-15PC44C |
|---|---|---|---|---|---|---|
| Package | 44-pin TQFP | 44-pin TQFP | 44-pin TQFP | 44-pin TQFP | 44-pin PLCC | 44-pin PLCC |
| Brand | AMD | AMD | AMD | AMD | AMD | AMD |
| Macrocells | 36 macrocells | 36 macrocells | 36 macrocells | 36 macrocells | 36 macrocells | 36 macrocells |
| Speed Grade | 6 ns | 6 ns | 7 ns | 6 ns | 6 ns | 15 ns |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Programming | In-system programmable FLASH, minimum 10,000 program/erase cycles | In-system programmable FLASH | In-system programmable FLASH | In-system programmable FLASH | In-system programmable FLASH | In-system programmable FLASH |
Key Differentiators
- Faster nominal speed grade than the 7 ns alternative (vs XC9536-7VQ44I)
- Commercial-grade ordering option with lower environmental qualification (vs XC9536-6VQ44I)
- Same-family logic density as package-suffix alternatives (vs XC9536-6PC44C)
Design Notes
Do not treat every XC9536 suffix as electrically identical. The C target is identified as commercial grade, while XC9536-6VQ44I is presented as the industrial-temperature alternative; verify the full ordering table, operating-temperature limits, and I/O behavior before substitution. A package match alone does not prove a drop-in fit if production requirements include industrial temperature, a newer speed grade, or compliance screening.
Plan the 5 V rail for both normal operation and in-system programming. Place the required bypass capacitors adjacent to the supply and ground pins, using the values and layout specified by the XC9536 family datasheet. Provide clean sequencing if an attached transceiver or processor can back-power an I/O during reset. Because the verified excerpts do not include absolute supply-current or absolute-maximum data, do not estimate them for final safety calculations.
Keep programming signals, oscillator or clock inputs, and reset-related nets away from high-slew-rate outputs to reduce coupling into configuration or timing paths. The 44-pin TQFP footprint has generous component spacing and is compatible with leaded assembly, but every unused and power pin still requires correct treatment. Route programming access for production programming and field updates, and ensure the board presents defined levels to configuration pins whenever the device is unpowered or being reprogrammed.
The listed 5 ns pin-to-pin delay does not establish complete system timing. Build timing from the exact macrocell and interconnect path, external setup and hold requirements, output loading, and the selected XC9536 speed grade. When substituting XC9536-7VQ44I, recompute critical paths because the nominal pin-to-pin delay increases by 1 ns, or 16.7%, relative to the 6 ns target designation.
Compliance Information
The verified product specification reports RoHS non-compliant and lead-free status as containing lead. No REACH, halogen-free, conflict-minerals, or AEC-Q100 statement was provided.