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AMD XCR3256XL-7PQG208C
- Part No.:
- XCR3256XL-7PQG208C
- Manufacturer:
- AMD
- Package:
- 208-BFQFP
- Datasheet:
-
XCR3256XL-7PQG208C.pdf
- Description:
- IC CPLD 256MC 7NS 208QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,563
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Product details
Overview
XCR3256XL-7PQG208C from AMD (acquired by Xilinx) is a 3.3 V, 7 ns propagation delay, 256-macrocell CPLD in 208-pin PQFP package, supporting in-system programmability and IEEE 1532 compliance for reconfigurable logic control in industrial PLCs and legacy interface bridging.
For engineers reviewing the XCR3256XL-7PQG208C datasheet, pinout, applications, or equivalent options, key selection criteria include propagation delay, macrocell count, I/O voltage compatibility, in-system programming support, and IEEE 1532 compliance for field-upgradable logic functions.
Technical Context
The XCR3256XL-7PQG208C implements a fully decoded architecture with 16 function blocks, each containing 16 macrocells and dedicated product-term sharing. It supports mixed 3.3 V/2.5 V I/O operation with programmable slew rate control and bus-hold circuitry on all user I/O pins.
Configuration is performed via JTAG boundary-scan using IEEE 1149.1-compliant TAP controller, and device initialization occurs within 100 µs after power-up. The device retains configuration in nonvolatile EEPROM cells without external memory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Macrocell Count | 256 macrocells provide combinational and registered logic resources for medium-complexity glue logic replacement. |
| Propagation Delay | 7 ns max ensures timing-critical signal routing in high-speed digital interfaces such as PCI and ISA bus bridging. |
| Supply Voltage | 3.3 V core supply with ±5% tolerance enables direct integration into 3.3 V system rails without level-shifting. |
| I/O Voltage Support | Supports 3.3 V and 2.5 V LVTTL/LVCMOS I/O standards for interoperability with mixed-voltage ASIC/FPGA subsystems. |
| Configuration Memory | On-chip EEPROM eliminates need for external configuration PROM, reducing BOM count and board space. |
| Programming Standard | IEEE 1532 compliance enables standardized in-system programming via JTAG without requiring dedicated programming hardware. |
Pinout & Package
Package: 208-pin Plastic Quad Flat Pack (PQFP), 28 × 28 mm body, 0.5 mm pitch, JEDEC MS-026AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TCK | JTAG Test Clock | Synchronizes JTAG state machine transitions during configuration and boundary-scan testing. |
| TMS | JTAG Test Mode Select | Controls JTAG TAP controller state transitions for instruction and data register access. |
| TDO | JTAG Test Data Out | Serial output of test data and configuration status during JTAG read operations. |
| TDI | JTAG Test Data In | Serial input path for configuration bitstreams and JTAG instructions. |
| IO[0]–IO[164] | User I/O Pins | Configurable as inputs, outputs, or bidirectional with programmable pull-up, slew rate, and bus-hold. |
| VCCINT | Core Power Supply | 3.3 V supply for internal logic array and macrocell resources. |
| VCCIO | I/O Power Supply | Independent 3.3 V or 2.5 V supply per bank enabling mixed-voltage I/O operation. |
Key Features
| Feature | Design Value |
|---|---|
| In-System Programmability (ISP) | Enables field firmware updates and logic revisions without device removal or socket programming. |
| IEEE 1532 Compliance | Standardized configuration protocol ensures interoperability across JTAG programmers and design tools. |
| Bus-Hold Circuitry | Prevents floating inputs on un-driven I/O pins, eliminating need for external pull-up/down resistors. |
| Programmable Slew Rate | Reduces EMI and signal integrity issues by limiting edge rates on high-speed outputs. |
| Nonvolatile EEPROM | Retains configuration through power cycles, enabling instant-on operation without boot-time configuration delay. |
Applications
| Industrial Control Logic | Legacy Bus Interface Bridging |
|---|---|
Use Scenario: Replacing discrete TTL logic and PALs in programmable logic controllers for sensor conditioning and actuator sequencing. IC Role / Device Role / Timing Role: Glue logic controller implementing state machines and combinatorial decoding with deterministic 7 ns timing. Use Value: Reduces component count and improves reliability over multi-chip solutions while maintaining real-time response. | Use Scenario: Bridging ISA or PCI bus signals between legacy microcontrollers and modern peripherals in medical instrumentation. IC Role / Device Role / Timing Role: Protocol-aware signal translator with configurable timing constraints and voltage-level adaptation. Use Value: Enables reuse of legacy PCB designs without redesigning timing-critical interface logic. |
| Reconfigurable I/O Expansion | Power Sequencing Controller |
Use Scenario: Adding flexible GPIO banks to embedded systems where I/O requirements change across product variants. IC Role / Device Role / Timing Role: Configurable I/O hub with programmable drive strength and input hysteresis for robust noise immunity. Use Value: Eliminates need for multiple fixed-function I/O expanders and simplifies variant management. | Use Scenario: Controlling power-up/down sequencing of multi-rail FPGAs and analog subsystems in telecom baseband modules. IC Role / Device Role / Timing Role: Deterministic timing controller generating synchronized enable signals with sub-10 ns skew. Use Value: Prevents latch-up and voltage violation during power transitions by enforcing strict rail-order dependencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD-based logic control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3256XL-10PQ208C | 10 ns propagation delay vs. 7 ns; otherwise identical architecture and pinout. | Suitable for less timing-critical implementations where margin allows slower speed grade. | Select when timing budget permits relaxed delay to reduce cost or improve signal integrity margins. |
| XC95288XL-10PQ208C | 288 macrocells, 10 ns delay, same PQFP-208 package but different pin mapping and I/O bank structure. | Better suited for larger logic density needs but requires PCB layout revision due to non-pin-compatible pinout. | Choose only if additional macrocells are required and board redesign is acceptable. |
Compared with XCR3256XL-7PQG208C, the -10PQ208C offers lower cost at reduced speed, while XC95288XL-10PQ208C provides higher density at the expense of pinout compatibility and increased power consumption-making the original part optimal for timing-constrained, drop-in CPLD upgrades.
Availability
XCR3256XL-7PQG208C is available at Aetrix Electronics and suitable for industrial control, legacy interface bridging, and reconfigurable I/O expansion requiring stable component supply and long-term lifecycle support.
Supply support for XCR3256XL-7PQG208C 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 FPGA and CPLD portfolio into adaptive computing solutions for data center, AI, and embedded markets.
The XCR3256XL family delivers low-power, nonvolatile CPLDs optimized for industrial automation, legacy system modernization, and deterministic logic control where instant-on operation and field reprogrammability are essential.
FAQ
What is the maximum operating frequency supported by XCR3256XL-7PQG208C?
The XCR3256XL-7PQG208C supports a maximum system clock frequency of 142 MHz under typical conditions, derived from its 7 ns propagation delay specification. This value assumes worst-case temperature and voltage conditions and applies to registered outputs with minimal logic depth. Actual achievable frequency depends on design topology, routing, and I/O loading.
Does XCR3256XL-7PQG208C require an external configuration PROM?
No, XCR3256XL-7PQG208C does not require an external configuration PROM. It integrates nonvolatile EEPROM for configuration storage, enabling self-contained operation with zero external components needed for configuration. The device powers up configured and ready to operate within 100 µs.
Is XCR3256XL-7PQG208C compatible with Xilinx ISE design tools?
Yes, XCR3256XL-7PQG208C is fully supported in Xilinx ISE 14.7 and earlier versions. The device appears in the ISE device library as "XCR3256XL-7PQG208C" with complete pin mapping, timing models, and programming file generation capability for JEDEC and IEEE 1532 formats.
Can XCR3256XL-7PQG208C operate with 2.5 V I/O while using 3.3 V core supply?
Yes, XCR3256XL-7PQG208C supports independent 3.3 V VCCINT and 2.5 V VCCIO supplies. Each I/O bank can be powered separately, allowing mixed-voltage operation. This enables direct interfacing with 2.5 V ASICs or FPGAs without level shifters while maintaining 3.3 V internal logic performance.
What JTAG standards does XCR3256XL-7PQG208C comply with?
XCR3256XL-7PQG208C complies with IEEE 1149.1 (JTAG boundary-scan) for test access and IEEE 1532 for in-system programming. Both standards are implemented via the same 4-pin JTAG port (TCK, TMS, TDI, TDO), enabling unified toolchain support for configuration and diagnostics.
XCR3256XL-7PQG208C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- CoolRunner XPLA3
- Package/Case:
- 208-BFQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- In System Programmable (min 1K program/erase cycles)
- Delay Time tpd(1) Max:
- 7 ns
- Voltage Supply - Internal:
- 3V ~ 3.6V
- Number of Logic Elements/Blocks:
- 16
- Number of Macrocells:
- 256
- Number of Gates:
- 6000
- Number of I/O:
- 164
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 208-PQFP (28x28)
XCR3256XL-7PQG208C FAQ
1.How can I place an order for XCR3256XL-7PQG208C through Aetrix?
Please submit a Request for Quotation (RFQ) for XCR3256XL-7PQG208C 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 XCR3256XL-7PQG208C reliable?
The price and inventory of XCR3256XL-7PQG208C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCR3256XL-7PQG208C is usually 5 days.
3.What payment methods are accepted for XCR3256XL-7PQG208C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCR3256XL-7PQG208C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCR3256XL-7PQG208C?
XCR3256XL-7PQG208C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCR3256XL-7PQG208C 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 XCR3256XL-7PQG208C?
For technical support, including XCR3256XL-7PQG208C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCR3256XL-7PQG208C requirements.
6.How does Aetrix verify that XCR3256XL-7PQG208C is sourced from the original manufacturer or authorized distributors?
All XCR3256XL-7PQG208C 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 XCR3256XL-7PQG208C meets industry standards.
7.What is the process for return or replacement of XCR3256XL-7PQG208C?
All XCR3256XL-7PQG208C units undergo pre-shipment inspection (PSI). If there is an issue with XCR3256XL-7PQG208C, 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 XCR3256XL-7PQG208C part is unused and in its original packaging.
Return procedure for XCR3256XL-7PQG208C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XCR3256XL-7PQG208C Tags
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5M40ZE64C5N
Intel
-
ATF1502ASV-15AU44
Microchip Technology
-
5M80ZE64C5N
Intel
-
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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