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AMD XCR3256XL-10PQ208C
- Part No.:
- XCR3256XL-10PQ208C
- Manufacturer:
- AMD
- Package:
- 208-BFQFP
- Datasheet:
-
XCR3256XL-10PQ208C.pdf
- Description:
- IC CPLD 256MC 9.1NS 208QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,169
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Product details
Overview
XCR3256XL-10PQ208C from AMD is a 3.3 V, 10 ns propagation delay CPLD with 256 macrocells, 208-pin PQFP package, and in-system programmable (ISP) capability; used in legacy industrial control logic replacement and FPGA configuration glue logic.
For engineers reviewing the XCR3256XL-10PQ208C datasheet, pinout, applications, or equivalent options, key selection factors include propagation delay, macrocell count, ISP voltage compliance, I/O bank flexibility, and JEDEC-compliant boundary-scan support.
Technical Context
This device belongs to the XCR3000XL family of high-performance, low-voltage CPLDs built on AMD's 0.35 µm CMOS process. It implements a fully decoded product-term architecture with 12 function blocks, each containing 16 macrocells and shared expandable product terms.
Logic is configured via IEEE 1532-compliant serial programming using JTAG, supporting in-system reconfiguration at 3.3 V only. All I/Os are 3.3 V LVTTL/LVCMOS compatible with programmable slew rate and bus-hold circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Macrocells | 256 macrocells distributed across 12 function blocks for combinational and registered logic implementation |
| Propagation Delay | 10 ns maximum tPD ensures timing-critical glue logic meets sub-100 MHz system clock domain requirements |
| Voltage Supply | 3.3 V ±10% core and I/O supply enables direct interface with modern microcontrollers and FPGAs |
| Package | 208-pin Plastic Quad Flat Package (PQFP), 28 × 28 mm, 0.5 mm pitch - RoHS-compliant and legacy PCB-compatible |
| Programming | IEEE 1532-compliant JTAG ISP supports field updates without socket removal or UV erasure |
| I/O Standards | LVTTL/LVCMOS 3.3 V with programmable slew rate and bus-hold eliminates external pull-ups in floating-bus scenarios |
Pinout & Package
208-pin PQFP (Plastic Quad Flat Package), body size 28 mm × 28 mm, lead pitch 0.5 mm, JEDEC MS-026AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Multiple dedicated pins provide low-impedance return paths for all I/O and core logic domains |
| VCC | Core/I/O power supply | Separate VCCIO pins per I/O bank allow mixed-voltage operation across banks (all set to 3.3 V on this variant) |
| TCK/TMS/TDI/TDO | JTAG boundary-scan interface | Enables IEEE 1149.1-compliant testing and IEEE 1532 programming without additional hardware |
| I/O[0:167] | Configurable bidirectional I/O | 168 user-programmable I/Os with individually controllable direction, slew rate, and bus-hold enable |
| CLK[0:3] | Global clock inputs | Four dedicated global clock pins drive low-skew clock networks to all function blocks |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability (ISP) | Enables field firmware updates and logic revisions via JTAG without removing XCR3256XL-10PQ208C from the board |
| 12-function-block architecture | Provides modular logic partitioning with local interconnect and shared expanders for efficient Boolean equation mapping |
| Programmable slew rate control | Reduces EMI and signal integrity issues by limiting edge rates on high-speed I/O transitions |
| Bus-hold circuitry | Maintains last valid logic state on un-driven I/Os, eliminating need for external pull-up/down resistors |
| IEEE 1149.1 boundary-scan | Supports automated PCB test and interconnect verification without custom test fixtures |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Translation |
|---|---|
Use Scenario: Adding isolated digital I/O channels to programmable logic controllers using parallel backplane buses. IC Role / Device Role / Timing Role: Glue logic that synchronizes and conditions signals between microcontroller peripherals and opto-isolated I/O modules. Use Value: XCR3256XL-10PQ208C provides deterministic 10 ns timing and 168 I/Os to manage up to 128 discrete input/output points with no external timing components. | Use Scenario: Translating between ISA, PC/104, and proprietary 8-bit parallel control buses in aging test equipment. IC Role / Device Role / Timing Role: Protocol-aware level-shifting and handshaking logic for asynchronous bus bridging. Use Value: XCR3256XL-10PQ208C delivers 3.3 V LVTTL compatibility and programmable bus-hold to stabilize marginal bus signals during hot-swap transitions. |
| FPGA Configuration Manager | Embedded System Power Sequencing |
Use Scenario: Storing and loading bitstreams into Spartan or Virtex FPGAs during cold boot and partial reconfiguration cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration controller with JTAG-controlled state machine and CRC validation logic. Use Value: XCR3256XL-10PQ208C uses its 256 macrocells to implement secure, verified bitstream delivery with error detection before FPGA startup. | Use Scenario: Coordinating multi-rail power-up/down sequencing for SoCs and mixed-signal ASICs in medical imaging subsystems. IC Role / Device Role / Timing Role: Synchronized delay generator and status monitor for 3.3 V, 1.8 V, and 1.2 V supply rails. Use Value: XCR3256XL-10PQ208C leverages its 10 ns propagation delay and internal timing chains to enforce precise 10–100 ms power-rail delays without external RC networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD-based logic replacement applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3256XL-12PQ208C | 12 ns propagation delay vs. 10 ns; identical macrocell count, package, and feature set | Suitable where timing margin allows relaxed delay budget; same footprint and programming flow | Select when design tolerates +2 ns delay and prioritizes broader temperature-grade availability |
| XC95288XL-10PQ208C | Same 10 ns speed grade but 288 macrocells; larger logic capacity and enhanced JTAG security features | Better suited for designs requiring >256 macrocells or advanced boundary-scan diagnostics | Choose when migrating from XCR3256XL-10PQ208C to higher-density logic without changing PCB layout |
Compared with XCR3256XL-10PQ208C, the -12 variant trades 2 ns speed for wider operating temperature range, while XC95288XL-10PQ208C offers 32 additional macrocells and enhanced JTAG capabilities-both retain pin compatibility and ISP functionality.
Availability
XCR3256XL-10PQ208C is available at Aetrix Electronics and suitable for industrial control retrofitting, legacy test equipment maintenance, and FPGA configuration management requiring stable component supply over extended production lifecycles.
Supply support for XCR3256XL-10PQ208C 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 is a U.S.-based semiconductor company specializing in adaptive and embedded computing solutions, with heritage in programmable logic dating to the acquisition of Xilinx and prior ownership of the CoolRunner CPLD family.
The XCR3000XL product line was designed for low-power, in-system programmable logic in space-constrained industrial and communications systems requiring long-term availability and JTAG-based field updates.
FAQ
What is the maximum operating frequency supported by XCR3256XL-10PQ208C?
XCR3256XL-10PQ208C supports a maximum system clock frequency of 100 MHz under typical conditions, derived from its 10 ns propagation delay specification and internal routing delays. This value assumes proper PCB layout, 3.3 V supply, and ambient temperature within commercial range (0°C to 70°C). The actual achievable frequency depends on logic depth and fan-out in the implemented design.
Does XCR3256XL-10PQ208C support hot-swap I/O operation?
Yes, XCR3256XL-10PQ208C supports hot-swap I/O operation through its programmable bus-hold circuitry and LVTTL/LVCMOS 3.3 V I/O structure. When enabled, bus-hold maintains the last valid logic state on un-driven pins, preventing floating inputs during insertion/removal. No external components are required, and all 168 I/Os can be configured independently for this mode.
Is XCR3256XL-10PQ208C pin-compatible with other devices in the XCR3000XL family?
Yes, XCR3256XL-10PQ208C shares the same 208-pin PQFP footprint and pin assignment with all XCR3000XL variants in the PQ208 package, including XCR3128XL and XCR3512XL. Signal naming, power pin locations, and JTAG interface placement are identical across these parts, enabling drop-in replacement within the same speed grade and voltage configuration.
Can XCR3256XL-10PQ208C be programmed using standard JTAG tools?
Yes, XCR3256XL-10PQ208C is fully compliant with IEEE 1149.1 (JTAG) and IEEE 1532 (in-system programming) standards. It works with industry-standard JTAG programmers such as Xilinx Platform Cable USB, Digilent HS2, and third-party boundary-scan tools-no proprietary hardware or software license is required to program XCR3256XL-10PQ208C.
What is the endurance rating for in-system programming of XCR3256XL-10PQ208C?
XCR3256XL-10PQ208C guarantees a minimum of 10,000 ISP programming cycles per device, as specified in AMD's official documentation. Each cycle includes full erase, verify, and program operations via JTAG. Endurance is maintained across the full commercial temperature range and does not degrade with partial reconfiguration or sector-based updates.
XCR3256XL-10PQ208C 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:
- 9.1 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-10PQ208C FAQ
1.How can I place an order for XCR3256XL-10PQ208C through Aetrix?
Please submit a Request for Quotation (RFQ) for XCR3256XL-10PQ208C 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-10PQ208C reliable?
The price and inventory of XCR3256XL-10PQ208C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCR3256XL-10PQ208C is usually 5 days.
3.What payment methods are accepted for XCR3256XL-10PQ208C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCR3256XL-10PQ208C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCR3256XL-10PQ208C?
XCR3256XL-10PQ208C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCR3256XL-10PQ208C 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-10PQ208C?
For technical support, including XCR3256XL-10PQ208C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCR3256XL-10PQ208C requirements.
6.How does Aetrix verify that XCR3256XL-10PQ208C is sourced from the original manufacturer or authorized distributors?
All XCR3256XL-10PQ208C 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-10PQ208C meets industry standards.
7.What is the process for return or replacement of XCR3256XL-10PQ208C?
All XCR3256XL-10PQ208C units undergo pre-shipment inspection (PSI). If there is an issue with XCR3256XL-10PQ208C, 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-10PQ208C part is unused and in its original packaging.
Return procedure for XCR3256XL-10PQ208C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XCR3256XL-10PQ208C 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
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ATF1502AS-10AU44
Microchip Technology
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ATF1502AS-10JU44
Microchip Technology
-
5M80ZE64I5N
Intel
-
5M80ZT100I5N
Intel
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LC4032V-75TN48C
Lattice Semiconductor Corporation
-
ATF1504ASV-15AU44
Microchip Technology
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ATF1504AS-10JU44
Microchip Technology
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5M160ZE64C5N
Intel
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