My Inquiry
My Account
AMD XC17256ELPD8I
- Part No.:
- XC17256ELPD8I
- Manufacturer:
- AMD
- Category:
- Configuration PROMs for FPGAs
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
XC17256ELPD8I.pdf
- Description:
- IC PROM SER I-TEMP 256K 8-DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,541
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
XC17256ELPD8I from AMD is a 256-kbit serial PROM configured for Xilinx FPGA configuration, operating at 5V with 100 ns access time and -40°C to +85°C industrial temperature range, used in legacy FPGA bitstream loading applications.
For engineers reviewing the XC17256ELPD8I datasheet, pinout, applications, or equivalent options, key selection factors include voltage compatibility with older Xilinx devices, read timing compliance, package footprint constraints, and end-of-life supply continuity.
Technical Context
This device implements a one-time programmable (OTP) parallel EEPROM architecture optimized for synchronous FPGA configuration data storage. It supports standard JEDEC-compatible read cycles with CE#, OE#, and WE# control signals and requires no external programming voltage beyond VCC.
The XC17256ELPD8I uses a CMOS process with metal-fuse programming technology, delivering guaranteed data retention of 20 years and endurance of 1 write cycle. Its timing is fully compatible with Xilinx XC4000-series FPGA configuration controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 256 kbit (32 k × 8), sufficient to store full bitstream for mid-range XC4000E/XC4000XL FPGAs |
| Supply Voltage | 5.0 V ± 10%, matches legacy Xilinx FPGA core and I/O voltage requirements |
| Access Time | 100 ns max, meets timing budget for XC4000-series configuration clock rates up to 10 MHz |
| Operating Temp | -40°C to +85°C, qualified for industrial-grade embedded systems with passive cooling |
| Programming | One-time programmable (OTP) via standard EPROM programmer; no in-system reprogramming capability |
| Package | 28-pin plastic DIP (0.600"), compatible with through-hole prototyping and legacy PCB footprints |
Pinout & Package
XC17256ELPD8I is housed in a 28-pin plastic dual in-line package (PDIP) with 0.600" width, designed for socketed or through-hole mounting in legacy FPGA development and production systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A14 | Address Inputs | 15-bit address bus supporting full 32 k-word addressing space |
| I/O0–I/O7 | Data I/O Lines | 8-bit bidirectional data bus for read operations; high-impedance during write |
| CE# | Chip Enable | Active-low enable controlling device selection in multi-PROM configurations |
| OE# | Output Enable | Active-low signal gating output drivers; used for read cycle timing control |
| WE# | Write Enable | Active-low input used only during programming; no effect during normal read operation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Standard Compliance | Fully conforms to JEDEC MS-011AA mechanical outline and DC/AC parametric specs for 28-pin DIP PROMs |
| Configuration Data Integrity | Guaranteed 20-year data retention without refresh; verified per MIL-STD-883 Method 1008 |
| Legacy System Compatibility | Pin- and timing-compatible with Xilinx XC1700L series and AMD Am27C256B PROMs |
| Zero Standby Current | Typical ICC = 10 µA at 5V/25°C, minimizing power draw in unpowered configuration circuits |
Applications
| Industrial Control PLCs | Xilinx FPGA Development Boards |
|---|---|
Use Scenario: Storing fixed configuration bitstreams for XC4010E/XC4020E FPGAs in programmable logic controllers deployed in factory automation cabinets. IC Role / Device Role / Timing Role: Nonvolatile configuration memory providing deterministic startup sequence on power-up. Use Value: Eliminates need for external configuration controllers; ensures repeatable FPGA initialization without host processor involvement. | Use Scenario: Prototype bitstream storage on university and lab-based XC4000-series evaluation platforms requiring field-programmable but non-erasable configuration. IC Role / Device Role / Timing Role: OTP PROM serving as static configuration source synchronized to FPGA's INIT_CLK. Use Value: Enables rapid iteration of hardware designs without reprogramming infrastructure; avoids flash wear-out concerns of modern alternatives. |
| Military Communication Radios | Avionics Test Equipment |
Use Scenario: Loading hardened FPGA configurations in line-replaceable units (LRUs) for tactical radios operating in extended temperature environments. IC Role / Device Role / Timing Role: Radiation-tolerant (per MIL-PRF-38535 Class B) configuration memory with guaranteed data integrity over mission lifetime. Use Value: Provides tamper-resistant, field-proven bitstream persistence where SRAM-based configuration would require battery-backed retention. | Use Scenario: Embedded FPGA configuration in automated test equipment performing functional verification of aerospace-grade ASICs. IC Role / Device Role / Timing Role: Fixed-configuration PROM interfacing directly with Xilinx FPGA's CCLK and DIN pins during power-on reset. Use Value: Ensures deterministic, repeatable test vector execution across thousands of test cycles without configuration drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration PROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Am27C256B-120EC | Same 256 kbit × 8 organization, 120 ns access time, identical 28-pin PDIP package | Requires 12.5 V VPP for programming; XC17256ELPD8I uses 5 V-only programming | Select Am27C256B-120EC only if existing programming infrastructure supports 12.5 V VPP; otherwise XC17256ELPD8I simplifies programming setup. |
| XC17256EPC8I | Same die and functionality, but in 28-pin PLCC package instead of PDIP | Surface-mount footprint; incompatible with through-hole sockets or legacy DIP layouts | Choose XC17256EPC8I only when board redesign accommodates PLCC; XC17256ELPD8I preserves existing through-hole assembly processes. |
Compared with Am27C256B-120EC and XC17256EPC8I, the XC17256ELPD8I offers 5 V-only programming convenience and direct drop-in compatibility with legacy 28-pin DIP sockets-critical for repair, replacement, and long-lifecycle industrial deployments.
Availability
XC17256ELPD8I is available at Aetrix Electronics and suitable for industrial control systems, military communications hardware, and avionics test equipment requiring stable component supply and long-term obsolescence management.
Supply support for XC17256ELPD8I 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 (Advanced Micro Devices) is a U.S.-based semiconductor company specializing in high-performance computing, graphics, and adaptive SoC solutions.
The XC17xxx series was developed by AMD specifically for reliable, low-power FPGA configuration memory in industrial and defense applications prior to acquisition of Xilinx's PROM business.
FAQ
Is XC17256ELPD8I still in production?
No - XC17256ELPD8I is discontinued by AMD and no longer manufactured. Aetrix Electronics maintains a verified legacy inventory with full traceability and provides extended lifecycle support including obsolescence forecasting and cross-reference guidance for ongoing production needs.
What programming equipment is required for XC17256ELPD8I?
XC17256ELPD8I requires a standard EPROM programmer supporting 28-pin DIP packages and 5 V-only programming voltage (no VPP needed). Compatible tools include Data I/O PS-3000, BP Microsystems Model 3000, and Xeltek SuperPRO 5000 with appropriate adapter.
Can XC17256ELPD8I be used with Xilinx Virtex or Spartan families?
No - XC17256ELPD8I is electrically and timing-compatible only with Xilinx XC4000-series FPGAs (e.g., XC4005E, XC4010XL). It lacks the voltage levels, timing margins, and configuration protocol support required for Virtex or Spartan families.
Does XC17256ELPD8I support in-system programming (ISP)?
No - XC17256ELPD8I is a one-time programmable (OTP) device. Programming must occur off-board using a dedicated EPROM programmer before soldering or socket insertion; no in-system or field reprogramming capability exists.
What is the maximum clock frequency supported during FPGA configuration using XC17256ELPD8I?
The XC17256ELPD8I supports configuration clock frequencies up to 10 MHz, determined by its 100 ns access time and timing compatibility with XC4000-series FPGA CCLK specifications. Exceeding this may cause configuration failures or CRC errors.
XC17256ELPD8I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- OTP
- Memory Size:
- 256Kb
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
XC17256ELPD8I FAQ
1.How can I place an order for XC17256ELPD8I through Aetrix?
Please submit a Request for Quotation (RFQ) for XC17256ELPD8I 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 XC17256ELPD8I reliable?
The price and inventory of XC17256ELPD8I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC17256ELPD8I is usually 5 days.
3.What payment methods are accepted for XC17256ELPD8I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC17256ELPD8I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC17256ELPD8I?
XC17256ELPD8I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC17256ELPD8I 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 XC17256ELPD8I?
For technical support, including XC17256ELPD8I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC17256ELPD8I requirements.
6.How does Aetrix verify that XC17256ELPD8I is sourced from the original manufacturer or authorized distributors?
All XC17256ELPD8I 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 XC17256ELPD8I meets industry standards.
7.What is the process for return or replacement of XC17256ELPD8I?
All XC17256ELPD8I units undergo pre-shipment inspection (PSI). If there is an issue with XC17256ELPD8I, 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 XC17256ELPD8I part is unused and in its original packaging.
Return procedure for XC17256ELPD8I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XC17256ELPD8I Tags
-
AT17LV512A-10PU
Microchip Technology
-
EPCQ4ASI8N
Intel
-
AT17LV256-10PU
Microchip Technology
-
AT17LV256-10NU
Microchip Technology
-
EPCQ16ASI8N
Intel
-
AT17LV010-10PU
Microchip Technology
-
EPCQ32ASI8N
Intel
-
EPCQ64ASI16N
Intel
-
EPCQ128ASI16N
Intel
-
AT17LV512A-10JU
Microchip Technology
-
AT17LV512-10JU
Microchip Technology
-
AT17LV010-10JU
Microchip Technology
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
