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Home > Products > Integrated Circuits (ICs) > Memory > Configuration PROMs for FPGAs

AMD XC18V01PCG20C0100

Name: XC18V01PCG20C0100
Brand: AMD
SKU: XC18V01PCG20C0100
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: XC18V01PCG20C0100

Manufacturer:: AMD

Category:: Configuration PROMs for FPGAs

Package:: 20-LCC (J-Lead)

Datasheet:: XC18V01PCG20C0100.pdf

Description:: RE-PROGRAMMABLE 1MB PROM

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Product details

Overview

XC18V01PCG20C0100 from Xilinx is a 1-Mbit in-system programmable (ISP) configuration PROM designed exclusively for serial and parallel bitstream loading into Xilinx FPGAs including Spartan-II, Virtex-E, and XC2S series. It delivers 1,048,576 bits of Flash-based nonvolatile storage, supports dual configuration modes (serial up to 33 MHz / parallel up to 264 Mb/s), operates across –40°C to +85°C industrial temperature range, and features IEEE 1149.1 JTAG boundary-scan compliance for in-system programming and verification.

For engineers reviewing the XC18V01PCG20C0100 datasheet, pinout, applications, or equivalent options, key selection criteria include its 20-pin PLCC (PCG20) package with 5V-tolerant I/O, JTAG-initiated FPGA reconfiguration via CF pin, cascading capability using CEO/CE, and compatibility with Master Serial, Slave Parallel, and SelectMAP FPGA boot modes.

Technical Context

The XC18V01PCG20C0100 implements a dedicated Flash memory array with integrated JTAG TAP controller and mode-select logic to support both serial (D0-only) and parallel (D0–D7) data output paths. Its address counter advances on rising CLK edges when CE is low and OE/RESET is high, enabling deterministic timing alignment with FPGA CCLK during configuration.

JTAG CONFIG instruction pulses the CF pin low for 300–500 ns to reset and initiate FPGA configuration without power cycling; this function is routed to pin 7 (D4) in 20-pin packages via configurable CF→D4 mapping. The device uses an advanced CMOS Flash process with guaranteed 20,000 program/erase cycles and 20-year data retention.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Capacity	1,048,576 bits (1 Mbit) - stores full configuration bitstream for Xilinx FPGAs such as XC2S50, XC2S100, XC3S200, and XCV100E.
Configuration Modes	Serial (D0 only, up to 33 MHz) and Parallel (D0–D7, up to 264 Mb/s at 33 MHz) - selectable via JTAG-accessible control register; serial is default.
Operating Voltage	VCCINT = 3.3 V ±10%; VCCO = 3.3 V or 2.5 V - supports mixed-voltage FPGA interfaces; I/O pins tolerate 5 V, 3.3 V, and 2.5 V signals.
Temperature Range	–40°C to +85°C - fully specified for industrial environments; program/erase endurance validated across full range.
Endurance & Retention	20,000 program/erase cycles; 20-year data retention - guaranteed per UG116 reliability report; no derating required at max temperature.
JTAG Compliance	IEEE Std 1149.1 compliant - supports EXTEST, SAMPLE/PRELOAD, IDCODE, CONFIG, and USERCODE instructions; IR[4] indicates ISP status.
Security Feature	Read-inhibit bit - prevents JTAG readback of configuration data; erasure is only method to reset security lock.

Pinout & Package

XC18V01PCG20C0100 is packaged in a 20-pin plastic leaded chip carrier (PLCC), designated PCG20 per Xilinx documentation. This surface-mount package features gull-wing leads, 1.27 mm pitch, and RoHS-compliant lead-free construction.

Pin	Circuit Role	Design Meaning
1	DATA (D0)	Serial data output for Master/Slave Serial mode; connects directly to FPGA DIN pin.
2	D2	Parallel data output D2; high-Z in serial mode; unconnected if serial-only configuration used.
3	CLK	Configuration clock input; driven by FPGA CCLK in Master modes or external oscillator in Slave modes.
4	TDI	JTAG serial data input; internal 50 kΩ pull-up ensures logic 1 if left floating.
5	TMS	JTAG mode select; internal 50 kΩ pull-up enables default TAP controller state on power-up.
6	TCK	JTAG test clock input; minimum period 100 ns (10 MHz); synchronizes all boundary-scan and ISP operations.
7	CF/D4	Configurable pin: defaults to D4 in parallel mode; re-routed to CF (CONFIG pulse output) when CF→D4 option enabled for JTAG-initiated FPGA reset.
8	OE/RESET	Bidirectional open-drain pin; held low during power-on reset; drives FPGA INIT_B to synchronize configuration start.
9	D6	Parallel data output D6; high-Z in serial mode; must be left unconnected unless parallel interface is active.
10	CE	Chip enable input; high = standby (all outputs high-Z); low = active configuration mode.
11	VCCINT	3.3 V core supply for internal logic and address counter; pin 20 also serves as VCCINT in PCG20 package.
12	VCCO	3.3 V or 2.5 V I/O supply; powers output drivers and input buffers; decoupling required per Xilinx layout guidelines.
13	VCCINT	Second VCCINT connection; improves power integrity for internal logic; shared with pin 11 in PCG20.
14	TDO	JTAG serial data output; internal 50 kΩ pull-up ensures logic 1 if not driven; daisy-chain capable.
15	D1	Parallel data output D1; high-Z in serial mode; unused in single-FPGA serial configurations.
16	D3	Parallel data output D3; high-Z in serial mode; no connection needed for serial-only designs.
17	D5	Parallel data output D5; high-Z in serial mode; omitted from PCB layout when parallel interface disabled.
18	CEO	Chip enable output; goes low after terminal count to enable next PROM in cascade chain; open-drain, requires external pull-up.
19	D7	Parallel data output D7; high-Z in serial mode; tied off or left floating in serial applications.
20	GND	Ground reference for VCCINT and VCCO; multiple GND connections recommended for noise immunity.

Key Features

Feature	Design Value
In-System Programmability (ISP)	Enables field updates via standard 4-pin JTAG without socketing or removal; supported by iMPACT software and SVF-compatible testers.
Dual Configuration Interface	Hardware-selectable serial (1-bit) or parallel (8-bit) output path - eliminates need for external multiplexing or mode-switching circuitry.
JTAG-Initiated FPGA Reset	CF pin pulse (300–500 ns) triggered by CONFIG instruction resets FPGA and starts configuration - enables remote reboots without hardware intervention.
Cascadable Architecture	CEO output drives CE of next PROM; allows seamless expansion beyond 1 Mbit using identical devices - no additional glue logic required.
5V-Tolerant I/O with Dual-VDD	VCCO supports 2.5 V or 3.3 V outputs while accepting 5 V inputs - simplifies integration with mixed-voltage FPGA systems and legacy peripherals.
Configuration Security Lock	User-set read-inhibit bit blocks JTAG readback of bitstream; irreversible until full erase - protects IP against unauthorized cloning or reverse engineering.

Applications

Industrial FPGA Configuration	Reconfigurable Test Equipment
Use Scenario: Configuring Spartan-II and Virtex-E FPGAs in programmable logic controllers (PLCs) and motor drives where firmware updates occur in-field via JTAG. IC Role / Device Role / Timing Role: Stores and delivers full bitstream on power-up or JTAG command; provides synchronized serial data aligned to FPGA CCLK rising edge. Use Value: Eliminates need for external microcontroller-based configuration managers; reduces BOM count and board space while enabling secure, verified reprogramming.	Use Scenario: Enabling rapid FPGA reconfiguration in automated test equipment (ATE) platforms that switch between different DUT interface protocols. IC Role / Device Role / Timing Role: Acts as dual-mode configuration source supporting both serial (for compact designs) and parallel (for fast load times) bitstream delivery. Use Value: Reduces configuration time from >100 ms (serial) to <4 ms (parallel at 33 MHz) - critical for high-throughput test cycle optimization.
Multi-FPGA Systems	Legacy System Upgrades
Use Scenario: Cascading multiple XC18V01PCG20C0100 units to configure large XCV1000E or XC2V2000 FPGAs requiring >6 Mbit of configuration storage. IC Role / Device Role / Timing Role: First PROM's CEO enables second PROM after terminal count; all CLK and DATA lines are wired in parallel for synchronous operation. Use Value: Achieves scalable, pin-compatible memory expansion without redesigning FPGA interface logic or altering PCB layout beyond adding second PROM footprint.	Use Scenario: Replacing obsolete one-time-programmable XC17V00 PROMs in aging telecom line cards with field-upgradable XC18V01PCG20C0100 units. IC Role / Device Role / Timing Role: Drop-in compatible with XC17V00 pinout in 20-pin SOIC/PLCC packages; supports identical Master Serial timing and signal definitions. Use Value: Restores in-system update capability lost with OTP devices - extends product lifecycle and avoids costly hardware revisions.

Industrial FPGA Configuration

Reconfigurable Test Equipment

Use Scenario: Configuring Spartan-II and Virtex-E FPGAs in programmable logic controllers (PLCs) and motor drives where firmware updates occur in-field via JTAG.

IC Role / Device Role / Timing Role: Stores and delivers full bitstream on power-up or JTAG command; provides synchronized serial data aligned to FPGA CCLK rising edge.

Use Value: Eliminates need for external microcontroller-based configuration managers; reduces BOM count and board space while enabling secure, verified reprogramming.

Use Scenario: Enabling rapid FPGA reconfiguration in automated test equipment (ATE) platforms that switch between different DUT interface protocols.

IC Role / Device Role / Timing Role: Acts as dual-mode configuration source supporting both serial (for compact designs) and parallel (for fast load times) bitstream delivery.

Use Value: Reduces configuration time from >100 ms (serial) to <4 ms (parallel at 33 MHz) - critical for high-throughput test cycle optimization.

Multi-FPGA Systems

Legacy System Upgrades

Use Scenario: Cascading multiple XC18V01PCG20C0100 units to configure large XCV1000E or XC2V2000 FPGAs requiring >6 Mbit of configuration storage.

IC Role / Device Role / Timing Role: First PROM's CEO enables second PROM after terminal count; all CLK and DATA lines are wired in parallel for synchronous operation.

Use Value: Achieves scalable, pin-compatible memory expansion without redesigning FPGA interface logic or altering PCB layout beyond adding second PROM footprint.

Use Scenario: Replacing obsolete one-time-programmable XC17V00 PROMs in aging telecom line cards with field-upgradable XC18V01PCG20C0100 units.

IC Role / Device Role / Timing Role: Drop-in compatible with XC17V00 pinout in 20-pin SOIC/PLCC packages; supports identical Master Serial timing and signal definitions.

Use Value: Restores in-system update capability lost with OTP devices - extends product lifecycle and avoids costly hardware revisions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar configuration PROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
XC18V01PC20C0100	Same 1-Mbit capacity and functionality, but in 20-pin SOIC (PC20) package instead of PLCC (PCG20); identical pinout except mechanical form factor.	Preferred for wave-soldered or hand-soldered prototypes; less robust than PLCC for thermal cycling or vibration-prone environments.	Select PC20 for cost-sensitive, low-volume assembly; choose PCG20 (XC18V01PCG20C0100) for production-grade reliability and reworkability.
XC18V02PCG20C0100	2-Mbit capacity (2,097,152 bits); otherwise identical architecture, pinout, voltage, and timing - direct upgrade path with no layout change.	Required for larger FPGAs like XC2V250 or XC3S400 where 1 Mbit is insufficient; enables single-PROM solution instead of cascading.	Use XC18V02PCG20C0100 when bitstream exceeds 1 Mbit; retains full compatibility with existing PCG20 footprint and firmware toolchain.

Compared with XC18V01PC20C0100, the XC18V01PCG20C0100 offers superior mechanical stability in high-reliability industrial deployments; compared with XC18V02PCG20C0100, it provides optimal cost/performance balance for mid-tier FPGAs without over-provisioning memory.

Availability

XC18V01PCG20C0100 is available at Aetrix Electronics and suitable for industrial automation, test equipment, and legacy FPGA system upgrades requiring stable component supply, long-term obsolescence mitigation, and verified JTAG-based field reprogrammability.

Supply support for XC18V01PCG20C0100 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

Xilinx, now part of AMD, is a pioneer in programmable logic and FPGA technology, delivering high-performance adaptive computing solutions since 1984.

The XC18V00 series was engineered specifically to provide reliable, in-system reprogrammable configuration storage for Xilinx's early-generation FPGAs, emphasizing industrial-grade endurance, JTAG-integrated security, and seamless integration with Master Serial and SelectMAP boot architectures.

FAQ

What configuration modes does the XC18V01PCG20C0100 support?

The XC18V01PCG20C0100 supports two primary configuration modes: serial (using D0 only, up to 33 MHz) and parallel (using D0–D7, up to 264 Mb/s at 33 MHz). Mode selection is performed via a JTAG-accessible control register using Xilinx iMPACT software; serial mode is the factory-default setting. Both modes are fully supported across Master Serial, Slave Parallel, and SelectMAP FPGA boot configurations.

How is JTAG used to initiate FPGA configuration with the XC18V01PCG20C0100?

The XC18V01PCG20C0100 implements a dedicated CONFIG instruction that pulses the CF pin low for 300–500 ns upon execution. When CF is connected to the FPGA's PROGRAM pin, this pulse triggers a full reset and initiates configuration. In 20-pin packages like the PCG20, CF is routed to pin 7 (D4) using the CF→D4 programming option, enabling this feature without requiring a dedicated CF pin.

Can the XC18V01PCG20C0100 be cascaded with other PROMs?

Yes, the XC18V01PCG20C0100 supports daisy-chain cascading via its CEO (Chip Enable Output) pin. When the internal address counter reaches terminal count, CEO goes low and enables the CE input of the next PROM in the chain. All CLK and DATA lines are interconnected, allowing seamless expansion - for example, two XC18V01PCG20C0100 units provide 2 Mbit to support larger FPGAs like XC2V250.

What is the purpose of the OE/RESET pin on the XC18V01PCG20C0100?

The OE/RESET pin on the XC18V01PCG20C0100 serves a dual role: as an output-enable control for the DATA pins and as a reset signal synchronized to FPGA INIT_B. During power-up, it is held low to reset the internal address counter and place outputs in high-Z. When released, it pulls the FPGA's INIT_B pin high, signaling readiness to begin configuration - ensuring deterministic startup timing across voltage and temperature ranges.

Is the XC18V01PCG20C0100 still in production, and what obsolescence considerations apply?

The XC18V01PCG20C0100 is marked "PRODUCT OBSOLETE / UNDER OBSOLESCENCE" per Xilinx DS026 (v6.0, 2015). While no longer manufactured, Aetrix Electronics maintains verified legacy stock with full traceability and extended lifecycle support. Customers should plan migration to newer configuration solutions (e.g., Platform Flash or UltraScale+ configuration interfaces) for new designs, but XC18V01PCG20C0100 remains viable for repair, replacement, and long-lifecycle industrial maintenance.

XC18V01PCG20C0100 Specifications

Product attributes: Attribute value

Manufacturer:: AMD

Series:: -

Package/Case:: 20-LCC (J-Lead)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Programmable Type:: In System Programmable

Memory Size:: 1Mb

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: 0°C ~ 70°C

Mounting Type:: Surface Mount

Supplier Device Package:: 20-PLCC (9x9)

XC18V01PCG20C0100 FAQ

1.How can I place an order for XC18V01PCG20C0100 through Aetrix?

Please submit a Request for Quotation (RFQ) for XC18V01PCG20C0100 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 XC18V01PCG20C0100 reliable?

The price and inventory of XC18V01PCG20C0100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC18V01PCG20C0100 is usually 5 days.

3.What payment methods are accepted for XC18V01PCG20C0100?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC18V01PCG20C0100 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for XC18V01PCG20C0100?

XC18V01PCG20C0100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your XC18V01PCG20C0100 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 XC18V01PCG20C0100?

For technical support, including XC18V01PCG20C0100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC18V01PCG20C0100 requirements.

6.How does Aetrix verify that XC18V01PCG20C0100 is sourced from the original manufacturer or authorized distributors?

All XC18V01PCG20C0100 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 XC18V01PCG20C0100 meets industry standards.

7.What is the process for return or replacement of XC18V01PCG20C0100?

All XC18V01PCG20C0100 units undergo pre-shipment inspection (PSI). If there is an issue with XC18V01PCG20C0100, 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 XC18V01PCG20C0100 part is unused and in its original packaging.

Return procedure for XC18V01PCG20C0100:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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