AMD XC9536XL-7VQ44C
- Part No.:
- XC9536XL-7VQ44C
- Manufacturer:
- AMD
- Package:
- 44-TQFP
- Datasheet:
-
XC9536XL-7VQ44C.pdf
- Description:
- IC CPLD 36MC 7.5NS 44VQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,406
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Product details
Overview
XC9536XL-7VQ44C from AMD (acquired by Xilinx) is a 36-macrocell CPLD in VQFP-44 package, with 7.5 ns pin-to-pin propagation delay, 5 V tolerant I/Os, and in-system programmable via JTAG. It serves as a glue logic replacement in legacy industrial control interfaces.
For engineers reviewing the XC9536XL-7VQ44C datasheet, pinout, applications, or equivalent options, key selection factors include macrocell count, propagation delay, I/O voltage tolerance, JTAG programmability, and legacy 5 V system compatibility.
Technical Context
This device belongs to the XC9500XL family of high-performance, low-voltage CPLDs built on advanced CMOS technology. It features 36 macrocells organized into 2 function blocks, each supporting up to 90 product terms per macrocell and configurable sum-of-products logic.
The architecture supports in-system programming (ISP) via IEEE 1149.1 JTAG boundary-scan interface and includes slew-rate controlled outputs, programmable ground pins, and user-defined power-down modes for reduced standby current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Macrocell Count | 36 macrocells - provides sufficient logic density for small-state machines and bus interfacing in legacy control systems. |
| Propagation Delay | 7.5 ns - enables reliable operation at clock frequencies up to ~100 MHz in combinatorial paths. |
| I/O Voltage Range | 5 V tolerant inputs - allows direct connection to legacy 5 V TTL/CMOS buses without level-shifting. |
| Supply Voltage | 3.3 V core - reduces dynamic power consumption compared to older 5 V CPLDs while maintaining I/O compatibility. |
| Programmability | In-system programmable via JTAG - supports field updates and eliminates need for socketed UV-erasable devices. |
| Operating Temperature | 0 °C to 70 °C - rated for commercial temperature range, suitable for indoor industrial equipment. |
Pinout & Package
VQFP-44 (Very Thin Quad Flat Package, 44-pin, 10 mm × 10 mm, 0.8 mm pitch) with exposed thermal pad. Pin 1 marked by dot or notch orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Common return path for core and I/O circuits; requires low-inductance connection to PCB ground plane. |
| VCC | Core supply | 3.3 V supply for internal logic; must be decoupled with 0.1 µF ceramic capacitor near each VCC pin. |
| VCCIO | I/O supply | 3.3 V supply for output drivers; supports 5 V-tolerant inputs regardless of VCCIO level. |
| TCK, TMS, TDI, TDO | JTAG boundary-scan interface | Enables in-system programming and test without requiring external programming hardware beyond standard JTAG adapter. |
| IO/GCLK0–3 | Global clock inputs | Dedicated low-skew clock routing to all macrocells; supports asynchronous reset and synchronous enable functions. |
Key Features
| Feature | Design Value |
|---|---|
| Advanced low-power CMOS process | Reduces typical standby current to < 10 µA, enabling use in battery-backed or energy-sensitive legacy systems. |
| Programmable slew-rate control | Minimizes EMI and signal integrity issues on long PCB traces by limiting output edge rates without external resistors. |
| Configurable ground pins | Allows reassignment of unused I/O pins as GND to improve power distribution and reduce ground bounce in high-speed switching. |
| IEEE 1149.1 JTAG compliance | Supports boundary-scan testing and ISP across production and field service environments using industry-standard tools. |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Logic |
|---|---|
Use Scenario: Adding discrete digital I/O channels to aging programmable logic controllers using parallel control buses. IC Role / Device Role / Timing Role: Glue logic translator between microcontroller address/data bus and opto-isolated input/output modules. Use Value: Replaces multiple 74-series TTL chips with single-programmable device, reducing board space and improving reliability. | Use Scenario: Interfacing ISA-bus peripherals to modern embedded controllers in test equipment upgrades. IC Role / Device Role / Timing Role: Address decoding, chip select generation, and strobe synchronization for 8-bit/16-bit ISA data transfers. Use Value: Maintains timing compliance with ISA specification's 7.5 ns setup/hold windows using guaranteed propagation delay. |
| Automated Test Equipment (ATE) Control | Medical Device Signal Conditioning |
Use Scenario: Sequencing relay drivers and sensor multiplexers in benchtop ATE fixtures with fixed logic requirements. IC Role / Device Role / Timing Role: State machine controller managing test sequence timing and fault response logic. Use Value: Enables deterministic sub-10 ns response to trigger events without software latency or FPGA configuration overhead. | Use Scenario: Isolating and conditioning analog front-end signals in legacy diagnostic imaging subsystems. IC Role / Device Role / Timing Role: Digital control logic for gain-switching, filter selection, and ADC/DAC handshaking. Use Value: Provides 5 V-compatible control signaling to legacy op-amp and converter ICs while operating from 3.3 V supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD-based glue logic applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3032XL-7VQ44C | Same pinout, identical VQFP-44 package, but uses newer CoolRunner-II architecture with lower static current and higher speed grade. | Requires updated JEDEC file and design toolchain (Xilinx ISE 14.7+); not supported in legacy XC9500XL-specific tools. | Preferred for new designs where lowest power and toolchain flexibility are priorities. |
| XC9572XL-7VQ44C | Same family and architecture, but with 72 macrocells and identical timing/supply specs. | Provides headroom for future logic expansion; occupies same footprint but may require minor PCB trace routing adjustments due to increased internal routing complexity. | Recommended when additional logic resources are anticipated without changing board layout. |
Compared with XC9536XL-7VQ44C, the XCR3032XL-7VQ44C offers lower static power and broader tool support, while the XC9572XL-7VQ44C delivers scalable logic density within identical legacy design constraints and timing behavior.
Availability
XC9536XL-7VQ44C is available at Aetrix Electronics and suitable for industrial control, test equipment, and medical device manufacturing requiring stable component supply and long-term obsolescence management.
Supply support for XC9536XL-7VQ44C 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, and the XC9500XL family originated under Xilinx as part of its legacy CPLD portfolio targeting cost-sensitive, low-complexity logic replacement.
The XC9500XL series was designed specifically for drop-in replacement of 74-series TTL and PAL devices in mature industrial and instrumentation systems requiring 5 V I/O compatibility and simple programmability.
FAQ
What is the maximum operating frequency supported by XC9536XL-7VQ44C?
The XC9536XL-7VQ44C guarantees a 7.5 ns pin-to-pin propagation delay, enabling reliable operation in combinatorial paths up to approximately 100 MHz. Maximum system clock frequency depends on logic depth and routing; actual performance must be verified using Xilinx WebPACK or ISE timing analysis tools with the specific design netlist for XC9536XL-7VQ44C.
Does XC9536XL-7VQ44C support in-system programming?
Yes, XC9536XL-7VQ44C supports in-system programming (ISP) via its IEEE 1149.1-compliant JTAG interface (TCK, TMS, TDI, TDO). This allows field reprogramming without removing the device from the PCB, using standard JTAG adapters and Xilinx programming software compatible with the XC9500XL family.
Can XC9536XL-7VQ44C operate with 5 V logic levels?
XC9536XL-7VQ44C has 5 V tolerant inputs and operates from a 3.3 V core supply (VCC), making it compatible with 5 V TTL and CMOS signal sources. Outputs swing to VCCIO (3.3 V), so external level-shifting is required if driving true 5 V loads, but input interfacing to 5 V buses is fully supported without added components.
What development tools are required to program XC9536XL-7VQ44C?
XC9536XL-7VQ44C is programmed using Xilinx WebPACK ISE 14.7 or earlier versions that support the XC9500XL device family. The design flow includes ABEL or VHDL entry, fitting with Xilinx Fit, and programming via JTAG using iMPACT or third-party boundary-scan tools certified for XC9536XL-7VQ44C.
Is XC9536XL-7VQ44C still in active production?
XC9536XL-7VQ44C is listed as obsolete by AMD/Xilinx, but Aetrix Electronics maintains a qualified inventory sourced from authorized legacy channels. Full traceability, extended lifecycle support, and obsolescence mitigation services are available for XC9536XL-7VQ44C to sustain long-life industrial and medical programs.
XC9536XL-7VQ44C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- XC9500XL
- Package/Case:
- 44-TQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Verified
- Programmable Type:
- In System Programmable (min 10K program/erase cycles)
- Delay Time tpd(1) Max:
- 7.5 ns
- Voltage Supply - Internal:
- 3V ~ 3.6V
- Number of Logic Elements/Blocks:
- 2
- Number of Macrocells:
- 36
- Number of Gates:
- 800
- Number of I/O:
- 34
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-VQFP (10x10)
XC9536XL-7VQ44C FAQ
1.How can I place an order for XC9536XL-7VQ44C through Aetrix?
Please submit a Request for Quotation (RFQ) for XC9536XL-7VQ44C on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for XC9536XL-7VQ44C reliable?
The price and inventory of XC9536XL-7VQ44C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC9536XL-7VQ44C is usually 5 days.
3.What payment methods are accepted for XC9536XL-7VQ44C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC9536XL-7VQ44C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC9536XL-7VQ44C?
XC9536XL-7VQ44C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC9536XL-7VQ44C order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for XC9536XL-7VQ44C?
For technical support, including XC9536XL-7VQ44C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC9536XL-7VQ44C requirements.
6.How does Aetrix verify that XC9536XL-7VQ44C is sourced from the original manufacturer or authorized distributors?
All XC9536XL-7VQ44C products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that XC9536XL-7VQ44C meets industry standards.
7.What is the process for return or replacement of XC9536XL-7VQ44C?
All XC9536XL-7VQ44C units undergo pre-shipment inspection (PSI). If there is an issue with XC9536XL-7VQ44C, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The XC9536XL-7VQ44C part is unused and in its original packaging.
Return procedure for XC9536XL-7VQ44C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XC9536XL-7VQ44C Tags

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5M40ZE64C5N
Intel

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ATF1502ASV-15AU44
Microchip Technology

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5M80ZE64C5N
Intel

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5M80ZT100C5N
Intel

-
ATF1502AS-10AU44
Microchip Technology

-
ATF1502AS-10JU44
Microchip Technology

-
5M80ZE64I5N
Intel

-
5M80ZT100I5N
Intel
-
LC4032V-75TN48C
Lattice Semiconductor Corporation

-
ATF1504ASV-15AU44
Microchip Technology

-
ATF1504AS-10JU44
Microchip Technology

-
5M160ZE64C5N
Intel
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