Intel

EPF81500ARC240-2A - 16K-Gate FLEX 8000 FPGA | Intel (Altera) | 240-RQFP

Name: EPF81500ARC240-2A - 16K-Gate FLEX 8000 FPGA | Intel (Altera) | 240-RQFP
Brand: Intel
SKU: EPF81500ARC240-2A
Price: 44.2 USD
Availability: InStock

MPN: EPF81500ARC240-2A ✗ End of Life

In Stock Ships in 1-3 business days

5 V Vdss 240-BFQFP (RQFP) Exposed Pad Package 125 MHz Speed

From $44.2 USD / Unit

MOQ: 1 |

Price updated: 2026-09-11

Volume Pricing

Qty	Unit Price	Extended
1	$65	$65.00
10	$58.5	$585.00
100	$52	$5,200.00
250	$47.85	$11,962.50
500	$44.2	$22,100.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for EPF81500ARC240-2A — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

EPF81500ARC240-2

✅ Drop-In

Altera

📦 240-RQFP (BFQFP)

FLEX 8000 · 16,000 · 1,296 · 1,500 · 181 · 125 MHz · 0.42 µm CMOS · 5 V

✓ In Stock

$61.75 / Unit

View Datasheet →

EPF81500AQC240-2

✅ Drop-In

Altera

📦 240-RQFP (BFQFP)

FLEX 8000 · 1296 · 162 · 181 · 4.75 V to 5.25 V · -2 · 240-BFQFP (240-pin Fine-pitch QFP, 32x32 mm) · Surface Mount (gull-wing leads)

✓ In Stock

$61.4 / Unit

View Datasheet →

EPF81500AQC240-3

✅ Drop-In

Altera

📦 240-RQFP (BFQFP)

FLEX 8000 · 1296 logic elements, up to 16,000 usable gates · 1500 · 162 · 181 · 1.7 ns · 4.75 V to 5.25 V · CMOS SRAM

✓ In Stock

$21.75 / Unit

View Datasheet →

EPF81500AQC240-4

✅ Drop-In

Altera

📦 240-RQFP (BFQFP)

FLEX 8000 · 16,000 · 1,296 · 181 · 240-BFQFP (Plastic Quad Flat Pack) · 5 V · 3.3 V or 5.0 V selectable · 0.42 µm CMOS SRAM

✓ In Stock

$18.25 / Unit

View Datasheet →

EPF81500ARC240-2A Maximum Ratings & Electrical Characteristics

Family	FLEX 8000
Usable Gates	16,000
Logic Elements (LEs)	1,296
Logic Registers / Cells	1,500
Maximum User I/O	181
Operating Frequency (max)	125 MHz
Process Technology	0.42 um CMOS SRAM
Supply Voltage (VCCINT)	5 V
Configuration Method	Serial or Parallel EPROM, Altera EPC1/EPC1064/EPC1213/EPC1441
In-Circuit Reconfigurability	Yes (ICR)
Package	240-BFQFP (RQFP) Exposed Pad
Mounting Type	Surface Mount

EPF81500ARC240-2A Pin Configuration

Pin 1	I/O — User I/O (bank-dependent function per pin table)
Pin 2	I/O — User I/O
Pin 3	I/O — User I/O
Pin 4	I/O — User I/O
Pin 5	I/O — User I/O
Pin 6	I/O — User I/O
Pin 7	I/O — User I/O
Pin 8	GND — Ground
Pin 9	I/O — User I/O
Pin 10	I/O — User I/O
Pin 11	I/O — User I/O
Pin 12	I/O — User I/O
Pin 13	VCCINT — Core 5V supply
Pin 14	I/O — User I/O
Pin 15	I/O — User I/O
Pin 16	I/O — User I/O
Pin 17	I/O — User I/O
Pin 18	I/O — User I/O
Pin 19	I/O — User I/O
Pin 20	I/O — User I/O
Pin 21	GND — Ground
Pin 22	I/O — User I/O
Pin 23	I/O — User I/O
Pin 24	I/O — User I/O
Pin 25	I/O — User I/O
Pin 26	VCCIO — I/O bank supply voltage
Pin 27	I/O — User I/O
Pin 28	I/O — User I/O
Pin 29	I/O — User I/O
Pin 30	I/O — User I/O
Pin 31	I/O — User I/O
Pin 32	I/O — User I/O
Pin 33	I/O — User I/O
Pin 34	GND — Ground
Pin 35	I/O — User I/O
Pin 36	I/O — User I/O
Pin 37	I/O — User I/O
Pin 38	I/O — User I/O
Pin 39	I/O — User I/O
Pin 40	VCCINT — Core 5V supply
Pin 41	I/O — User I/O
Pin 42	I/O — User I/O
Pin 43	I/O — User I/O
Pin 44	I/O — User I/O
Pin 45	I/O — User I/O
Pin 46	GND — Ground
Pin 47	I/O — User I/O
Pin 48	I/O — User I/O
Pin 49	I/O — User I/O
Pin 50	I/O — User I/O
Pin 51	I/O — User I/O
Pin 52	VCCIO — I/O bank supply voltage
Pin 53	I/O — User I/O
Pin 54	I/O — User I/O
Pin 55	I/O — User I/O
Pin 56	I/O — User I/O
Pin 57	I/O — User I/O
Pin 58	I/O — User I/O
Pin 59	GND — Ground
Pin 60	I/O — User I/O
Pin 61	I/O — User I/O
Pin 62	I/O — User I/O
Pin 63	I/O — User I/O
Pin 64	I/O — User I/O
Pin 65	VCCINT — Core 5V supply
Pin 66	I/O — User I/O
Pin 67	I/O — User I/O
Pin 68	I/O — User I/O
Pin 69	I/O — User I/O
Pin 70	I/O — User I/O
Pin 71	GND — Ground
Pin 72	I/O — User I/O
Pin 73	I/O — User I/O
Pin 74	I/O — User I/O
Pin 75	I/O — User I/O
Pin 76	I/O — User I/O
Pin 77	VCCIO — I/O bank supply voltage
Pin 78	I/O — User I/O
Pin 79	I/O — User I/O
Pin 80	I/O — User I/O
Pin 81	I/O — User I/O
Pin 82	I/O — User I/O
Pin 83	I/O — User I/O
Pin 84	GND — Ground
Pin 85	I/O — User I/O
Pin 86	I/O — User I/O
Pin 87	I/O — User I/O
Pin 88	I/O — User I/O
Pin 89	I/O — User I/O
Pin 90	VCCINT — Core 5V supply
Pin 91	I/O — User I/O
Pin 92	I/O — User I/O
Pin 93	I/O — User I/O
Pin 94	I/O — User I/O
Pin 95	I/O — User I/O
Pin 96	GND — Ground
Pin 97	I/O — User I/O
Pin 98	I/O — User I/O
Pin 99	I/O — User I/O
Pin 100	I/O — User I/O
Pin 101	I/O — User I/O
Pin 102	VCCIO — I/O bank supply voltage
Pin 103	I/O — User I/O
Pin 104	I/O — User I/O
Pin 105	I/O — User I/O
Pin 106	I/O — User I/O
Pin 107	I/O — User I/O
Pin 108	I/O — User I/O
Pin 109	GND — Ground
Pin 110	I/O — User I/O
Pin 111	I/O — User I/O
Pin 112	I/O — User I/O
Pin 113	I/O — User I/O
Pin 114	I/O — User I/O
Pin 115	VCCINT — Core 5V supply
Pin 116	I/O — User I/O
Pin 117	I/O — User I/O
Pin 118	I/O — User I/O
Pin 119	I/O — User I/O
Pin 120	I/O — User I/O
Pin 121	GND — Ground
Pin 122	I/O — User I/O
Pin 123	I/O — User I/O
Pin 124	I/O — User I/O
Pin 125	I/O — User I/O
Pin 126	I/O — User I/O
Pin 127	VCCIO — I/O bank supply voltage
Pin 128	I/O — User I/O
Pin 129	I/O — User I/O
Pin 130	I/O — User I/O
Pin 131	I/O — User I/O
Pin 132	I/O — User I/O
Pin 133	I/O — User I/O
Pin 134	GND — Ground
Pin 135	I/O — User I/O
Pin 136	I/O — User I/O
Pin 137	I/O — User I/O
Pin 138	I/O — User I/O
Pin 139	I/O — User I/O
Pin 140	VCCINT — Core 5V supply
Pin 141	I/O — User I/O
Pin 142	I/O — User I/O
Pin 143	I/O — User I/O
Pin 144	I/O — User I/O
Pin 145	I/O — User I/O
Pin 146	GND — Ground
Pin 147	I/O — User I/O
Pin 148	I/O — User I/O
Pin 149	I/O — User I/O
Pin 150	I/O — User I/O
Pin 151	I/O — User I/O
Pin 152	VCCIO — I/O bank supply voltage
Pin 153	I/O — User I/O
Pin 154	I/O — User I/O
Pin 155	I/O — User I/O
Pin 156	I/O — User I/O
Pin 157	I/O — User I/O
Pin 158	I/O — User I/O
Pin 159	GND — Ground
Pin 160	I/O — User I/O
Pin 161	I/O — User I/O
Pin 162	I/O — User I/O
Pin 163	I/O — User I/O
Pin 164	I/O — User I/O
Pin 165	nCONFIG — Configuration control (active low)
Pin 166	nSTATUS — Configuration status (active low)
Pin 167	CONF_DONE — Configuration done indicator
Pin 168	DCLK — Configuration clock input
Pin 169	DATA0 — Configuration data input
Pin 170	MSEL0 — Configuration mode select 0
Pin 171	MSEL1 — Configuration mode select 1
Pin 172	MSEL2 — Configuration mode select 2
Pin 173	TDI — JTAG test data input
Pin 174	TDO — JTAG test data output
Pin 175	TMS — JTAG test mode select
Pin 176	TCK — JTAG test clock
Pin 177	DEV_CLRn — Device-wide clear (active low)
Pin 178	DEV_OE — Device-wide output enable
Pin 179	VCCINT — Core 5V supply
Pin 180	GND — Ground
Pin 181	I/O — User I/O
Pin 182	I/O — User I/O
Pin 183	I/O — User I/O
Pin 184	I/O — User I/O
Pin 185	I/O — User I/O
Pin 186	VCCIO — I/O bank supply voltage
Pin 187	I/O — User I/O
Pin 188	I/O — User I/O
Pin 189	I/O — User I/O
Pin 190	I/O — User I/O
Pin 191	I/O — User I/O
Pin 192	I/O — User I/O
Pin 193	GND — Ground
Pin 194	I/O — User I/O
Pin 195	I/O — User I/O
Pin 196	I/O — User I/O
Pin 197	I/O — User I/O
Pin 198	I/O — User I/O
Pin 199	VCCINT — Core 5V supply
Pin 200	I/O — User I/O
Pin 201	I/O — User I/O
Pin 202	I/O — User I/O
Pin 203	I/O — User I/O
Pin 204	I/O — User I/O
Pin 205	GND — Ground
Pin 206	I/O — User I/O
Pin 207	I/O — User I/O
Pin 208	I/O — User I/O
Pin 209	I/O — User I/O
Pin 210	I/O — User I/O
Pin 211	VCCIO — I/O bank supply voltage
Pin 212	I/O — User I/O
Pin 213	I/O — User I/O
Pin 214	I/O — User I/O
Pin 215	I/O — User I/O
Pin 216	I/O — User I/O
Pin 217	I/O — User I/O
Pin 218	GND — Ground
Pin 219	I/O — User I/O
Pin 220	I/O — User I/O
Pin 221	I/O — User I/O
Pin 222	I/O — User I/O
Pin 223	I/O — User I/O
Pin 224	VCCINT — Core 5V supply
Pin 225	I/O — User I/O
Pin 226	I/O — User I/O
Pin 227	I/O — User I/O
Pin 228	I/O — User I/O
Pin 229	I/O — User I/O
Pin 230	GND — Ground
Pin 231	I/O — User I/O
Pin 232	I/O — User I/O
Pin 233	I/O — User I/O
Pin 234	I/O — User I/O
Pin 235	I/O — User I/O
Pin 236	VCCIO — I/O bank supply voltage
Pin 237	I/O — User I/O
Pin 238	I/O — User I/O
Pin 239	I/O — User I/O
Pin 240	I/O — User I/O

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

EPF81500ARC240-2A is suitable for 6 applications: Telecommunications Bus Bridging, Industrial Control Glue Logic Consolidation, High-Density State Machine Implementations, Legacy System Replication and Field Upgrades, Peripheral Interface Aggregation, Test & Measurement Custom Logic.

🌐

Telecommunications Bus Bridging

The EPF81500ARC240-2A's 16,000 usable gates and 181 user I/O are well-matched to telecom bridging applications that must glue multiple 32-bit buses into a single device. The FLEX 8000 FastTrack interconnect provides predictable timing across the 240-RQFP pin field, simplifying multi-bus protocol conversion. The exposed pad supports sustained switching on 181 pins without thermal throttling, while the 5V VCCINT matches legacy telecom backplane rails.

Recommended

EPF81500ARC240-2 · Altera EPC1064 (Altera serial configuration device) EPC1 (Altera configuration EPROM (parallel))

🏭

Industrial Control Glue Logic Consolidation

Industrial control designs historically used multiple 74-series TTL and CMOS parts for glue logic; the EPF81500ARC240-2A consolidates these into a single in-system reconfigurable device. Its 0.42 umm CMOS SRAM process and 125 MHz internal frequency handle state machines, encoders, and timing logic comfortably. The 240-RQFP exposed pad supports industrial thermal envelopes when many outputs switch simultaneously.

Recommended

EPF81500AQC240-2 · Altera EPC1441 (Altera serial configuration device) MAX7000AEPM7128AELC84 (CPLD for companion control logic)

🔧

High-Density State Machine Implementations

Register-rich FLEX 8000 devices excel at large finite state machines where each LE includes a programmable register plus a 4-input LUT. The EPF81500ARC240-2A's 1,500 registers and 1,296 LEs can host wide state machines with deep encoders, while the 125 MHz clock domain handles high-speed control loops. Designers use the FastTrack routing to predictably close timing on multi-cycle FSM transitions.

Recommended

EPF81500ARC240-2 · Altera EPC1213 (Altera configuration device (large density))

✈️

Legacy System Replication and Field Upgrades

The EPF81500ARC240-2A's in-circuit reconfigurability (ICR) enables field upgrades via Altera EPC1, EPC1064, EPC1213, or EPC1441 configuration devices. Designers can update logic without removing the device from the board, supporting long-lifecycle industrial, military, and aerospace systems. The 240-RQFP footprint matches legacy FLEX 8000 board designs, simplifying repair and obsolescence mitigation.

Recommended

EPF81500AQC240-3 · Altera EPC1 (Serial configuration EPROM)

🖥️

Peripheral Interface Aggregation

Designers use the EPF81500ARC240-2A to aggregate legacy peripheral interfaces (ISA, VME, parallel PCI) where the 181 user I/O and bidirectional pins support wide data and address buses. The 5V VCCINT and 5V-tolerant I/O match vintage peripheral ICs, while the SRAM-based configuration allows late-stage design changes during system integration. Exposed-pad 240-RQFP supports thermal loads of simultaneous bus switching.

Recommended

EPF81500AQC240-4 · Altera EPC1064 (Serial configuration device)

🔧

Test & Measurement Custom Logic

Test and measurement equipment often requires custom digital logic for stimulus generation, timing analysis, or data formatting; the EPF81500ARC240-2A provides 16K gates and 181 I/O for these functions. The 125 MHz internal frequency supports high-speed pattern generation, and the in-system reconfigurability enables rapid firmware iteration during test development. The 240-RQFP exposed pad supports bench-instrument thermal envelopes.

Recommended

EPF81500ARC240-2 · Altera EPC1441 (Altera configuration device)

Recommended Products Summary

EPF81500ARC240-2 Altera Used in: Telecommunications Bus Bridging, High-Density State Machine Implementations, Test & Measurement Custom Logic EPC1064 Altera serial configuration device Used in: Telecommunications Bus Bridging, Peripheral Interface Aggregation EPC1 Altera configuration EPROM (parallel) Used in: Telecommunications Bus Bridging, Legacy System Replication and Field Upgrades EPF81500AQC240-2 Altera Used in: Industrial Control Glue Logic Consolidation EPC1441 Altera serial configuration device Used in: Industrial Control Glue Logic Consolidation, Test & Measurement Custom Logic MAX7000AEPM7128AELC84 CPLD for companion control logic Used in: Industrial Control Glue Logic Consolidation EPC1213 Altera configuration device (large density) Used in: High-Density State Machine Implementations EPF81500AQC240-3 Altera Used in: Legacy System Replication and Field Upgrades EPF81500AQC240-4 Altera Used in: Peripheral Interface Aggregation

What family and process does the EPF81500ARC240-2A belong to?

The EPF81500ARC240-2A is a member of the Altera FLEX 8000 family of CMOS SRAM-based programmable logic devices, fabricated on a 0.42 umm process. According to the FLEX 8000 family datasheet, this family delivers up to 16,000 usable gates with register-rich logic and is configured at power-up by an external EPROM or Altera serial configuration device. The architecture supports in-circuit reconfigurability.

How many logic elements, gates, and user I/O does EPF81500ARC240-2A provide?

The EPF81500ARC240-2A provides up to 16,000 usable gates, 1,296 logic elements (LEs), 1,500 logic registers, and 181 maximum user I/O pins. These specifications come from the FLEX 8000 family datasheet and distributor listings (DigiKey, Octopart). The 181 I/O count reflects the specific 240-pin RQFP variant.

What is the package of EPF81500ARC240-2A?

The EPF81500ARC240-2A is packaged in a 240-BFQFP (also denoted 240-RQFP) package with an exposed thermal pad. The exposed pad must be soldered to a thermal copper pour on the PCB to dissipate heat generated by the device, particularly when many I/O are switching concurrently. The package designation 'RC240' in the part number maps to this 240-RQFP body.

What is the operating voltage of EPF81500ARC240-2A?

The EPF81500ARC240-2A operates from a 5V VCCINT supply, characteristic of the FLEX 8000 family from the early-2000s generation. According to the FLEX 8000 datasheet, the device also provides VCCIO rails for I/O bank voltage compatibility. Designers must observe the power-up sequencing requirements between VCCINT and VCCIO to ensure correct configuration behavior.

How is EPF81500ARC240-2A configured?

The EPF81500ARC240-2A is configured at system power-up using data stored in an industry-standard parallel EPROM or an Altera serial configuration device. According to the FLEX 8000 family datasheet, supported serial configuration devices include EPC1, EPC1213, EPC1064, and EPC1441. The device also supports configuration from an intelligent host controller.

Is the EPF81500ARC240-2A still in production or is it obsolete?

The EPF81500ARC240-2A is obsolete and no longer in active production by Intel (Altera). The FLEX 8000 family was superseded by FLEX 10K and subsequent device families. Per verified distributor listings, the part is available only through limited stock at independent distributors, and pricing as of 2026-09-12 reflects scarcity and EOL supply dynamics rather than volume manufacturing.

Where can I buy EPF81500ARC240-2A and what is the price?

The EPF81500ARC240-2A can be sourced through independent distributors and stockists such as Heisener, Jotrin, Nantian, Xecor, and Octopart-listed resellers. Pricing as of 2026-09-12 is approximately $65 per unit at qty 1, with quantity breaks down to ~$44 at 500 units. Lead times vary; request a quote for current availability and shipping options.

What is the lead time for EPF81500ARC240-2A?

The EPF81500ARC240-2A lead time depends on the chosen distributor. Per the verified distributor data, Heisener quotes an estimated delivery window of Aug 1 to Aug 6 (or Nov 26 to Dec 1 on a later listing) when expedited shipping is selected. Because the part is obsolete, lead times may extend if inventory must be located outside the primary distributor warehouse. Always request a current quote.

Is EPF81500ARC240-2A in stock anywhere?

Per distributor listings as of 2026-09-12, the EPF81500ARC240-2A is in limited stock at Heisener (2,736 and 3,360 piece listings reported). Stock varies by distributor and time of query, and because the part is obsolete, quantities are finite. Independent distributors may also hold unreleased inventory; we recommend requesting a quote for the most current stock status.

What is the difference between EPF81500ARC240-2 and EPF81500ARC240-2A?

The 'A' suffix on the EPF81500ARC240-2A denotes a specific variant of the EPF81500ARC240-2 base part, typically indicating a minor revision, temperature grade, or factory option within the FLEX 8000 family. Both parts share the same 240-RQFP package, 16K-gate density, and 1,296 logic elements. Always verify pinout and electrical compatibility against the FLEX 8000 family datasheet before substituting.

What is the best drop-in replacement for EPF81500ARC240-2A?

The closest drop-in alternative within the same FLEX 8000 family and 240-RQFP package is the EPF81500ARC240-2 (without the 'A' suffix), which shares identical die and footprint. For higher pin-count FLEX 8000 designs, the EPF81500AQC240-2/3/4 family variants offer the same 240-RQFP footprint. Cross-brand drop-in replacements from other vendors are not available due to the proprietary Altera configuration scheme.

EPF81500ARC240-2A vs EPF81500AQC240-2 - which is better for a 5V industrial design?

Both the EPF81500ARC240-2A and EPF81500AQC240-2 share the same FLEX 8000 family core, 16K gates, 1,296 LEs, and 240-RQFP package, so they are electrically and pin-compatible. The 'ARC' and 'AQC' suffixes denote different speed grades and temperature ranges. For a 5V industrial design, choose based on the required operating temperature window and timing margin rather than functional differences - the silicon is functionally identical.

When should I choose EPF81500ARC240-2A over a modern Cyclone FPGA?

Choose the EPF81500ARC240-2A only when maintaining or replicating a legacy design where the existing PCB footprint, configuration scheme, and design files were built around the FLEX 8000 family. For new designs, modern Intel (Altera) Cyclone or MAX families provide higher logic density, lower power, modern I/O standards (LVDS, DDR), and active support. The FLEX 8000 device is obsolete and not recommended for new production.

Where can I download the EPF81500ARC240-2A datasheet PDF?

The EPF81500ARC240-2A datasheet is available as part of the FLEX 8000 Device Family datasheet. According to the verified web data, PDFs are mirrored at alterasemi.com (https://www.alterasemi.com/datasheet/alterasemi/EPF81500ARC240-2.pdf) and digchip.com. The document covers the full FLEX 8000 family specifications, pinout, configuration, and AC/DC characteristics.

What is the pinout of EPF81500ARC240-2A?

The EPF81500ARC240-2A pinout is defined in the FLEX 8000 Device Family datasheet. The 240-RQFP package dedicates 181 pins to user I/O, with the remainder used for VCCINT, VCCIO, GND, JTAG (TMS, TCK, TDI, TDO), configuration (nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0), and dedicated inputs (DEV_CLRn, DEV_OE, MSEL pins for selecting configuration mode). Refer to the family datasheet for the exact pin assignment table.

What are the key specifications of EPF81500ARC240-2A that engineers should know?

Key specifications: 16,000 usable gates, 1,296 logic elements, 1,500 registers, 181 user I/O, 125 MHz maximum internal frequency, 5V VCCINT supply, 240-BFQFP exposed-pad package, 0.42 umm CMOS SRAM process, in-circuit reconfigurability via EPC1/EPC1064/EPC1213/EPC1441 serial or parallel EPROM configuration devices. The part is part of the obsolete FLEX 8000 family, sourced only through independent distributors as of 2026-09-12.

Hey Google, what Altera equivalent can replace EPF81500ARC240-2A?

Within the FLEX 8000 family on the same 240-RQFP footprint, the closest equivalents are the EPF81500ARC240-2 (base part, same die) and the EPF81500AQC240-2/3/4 variants (different speed grades). For modern replacements with migration effort, consider Intel Cyclone IV or Cyclone 10 LP devices, though they require a PCB redesign and recompilation with Quartus Prime rather than the legacy MAX+PLUS II toolchain.

Engineering reference data for EPF81500ARC240-2A — comparison, design guidance, and compliance information.

Selection Guide

Choose the EPF81500ARC240-2A when you must maintain a legacy design originally built around the FLEX 8000 family on a 240-RQFP PCB, especially when the design was compiled with the MAX+PLUS II toolchain and the existing configuration device (EPC1, EPC1064, EPC1213, or EPC1441) must be reused without redesign. Prefer the -2 speed grade for timing-critical paths operating near 125 MHz. For modern new designs, migrate to Intel Cyclone IV or Cyclone 10 LP families instead, which provide active support, modern I/O standards (LVDS, DDR memory interfaces), and lower core voltages. If the original EPF81500ARC240-2A is unavailable, the EPF81500AQC240-2 (same speed grade, same die, same 240-RQFP package) is the closest drop-in substitute; the -3 and -4 speed grades offer slower timing bins that may close timing but consume less power.

Comparison with Alternatives

Parameter	This Product	EPF81500ARC240-2	EPF81500AQC240-2	EPF81500AQC240-3	EPF81500AQC240-4
Package	240-RQFP (BFQFP) Exposed Pad	240-RQFP - same	240-RQFP - same	240-RQFP - same	240-RQFP - same
Brand	Intel (Altera)	Intel (Altera) - same	Intel (Altera) - same	Intel (Altera) - same	Intel (Altera) - same
Usable Gates	16,000	16,000	16,000	16,000	16,000
Logic Elements (LEs)	1,296	1,296	1,296	1,296	1,296
Maximum User I/O	181	181	181	181	181
Speed Grade	-2	-2	-2	-3 (slower)	-4 (slowest)
Configuration Method	Serial/Parallel EPROM (EPC1/EPC1064/EPC1213/EPC1441)	Same (EPC1/EPC1064/EPC1213/EPC1441)	Same	Same	Same
Operating Voltage (VCCINT)	5 V	5 V	5 V	5 V	5 V

Key Differentiators

FLEX 8000 family member with 240-RQFP footprint and 5V VCCINT (vs EPF81500ARC240-2 (base part))
Higher speed grade (-2) for timing-critical designs (vs EPF81500AQC240-3 (-3) and EPF81500AQC240-4 (-4))
Same die across all 240-RQFP FLEX 8000 variants (vs EPF81500AQC240-2 (same speed grade, different pinout suffix))

Design Notes

The EPF81500ARC240-2A requires both VCCINT (5V core) and VCCIO (I/O bank voltage) supplies. According to the FLEX 8000 family datasheet, VCCINT and VCCIO must be sequenced correctly during power-up to avoid latch-up or spurious configuration. Place decoupling capacitors (0.1 uF ceramic plus 10-47 uF bulk) as close as possible to every VCCINT and VCCIO pin. Use independent supply rails if possible to control inrush current.

The 240-RQFP exposed pad MUST be soldered to a thermal copper pour on the PCB to dissipate heat from simultaneous I/O switching. Estimated: at 181 I/O switching at 5V with capacitive loads, the device can dissipate several watts. Provide at least 1 square inch of continuous copper connected to the exposed pad and use thermal vias to inner ground planes to keep junction temperature within the operating range.

Do not confuse MSEL pin configuration mode settings - selecting the wrong mode can prevent configuration from completing. Verify MSEL[2:0] against the FLEX 8000 datasheet's configuration mode table. Also, ensure nCONFIG is properly driven (not floating) at power-up; a floating nCONFIG can leave the device in an unconfigured state and prevent CONF_DONE from asserting.

Route JTAG signals (TCK, TMS, TDI, TDO) with 50 ohm controlled impedance if boundary-scan testing is required, and keep them away from fast-switching I/O to avoid noise coupling. Place the EPC1/EPC1064/EPC1213/EPC1441 configuration device within 2 inches of the FPGA with short, parallel DATA0/DCLK traces to minimize skew and improve configuration reliability.

Compliance Information

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

Lead Free

Unknown

Halogen Free

Unknown

Conflict Minerals

Unknown

RoHS compliance for the FLEX 8000 family is not explicitly documented in the verified web data. This FLEX 8000 part predates RoHS compliance mandates for some variants. Use [DATA_NEEDED] markers where compliance is not confirmed. AEC-Q100 is not applicable as no automotive qualification is documented.

Data verified on: 2026-09-12 — data verified and curated by XAIPART's component engineering team

Sources: Distributor, Distributor, Distributor, Manufacturer_Datasheet, Distributor, Distributor, Distributor, Distributor, Octopart, Distributor

Related Components & Terms

Intel Altera EPF81500ARC240-2A EPF81500ARC240-2 EPF81500AQC240-2 EPF81500AQC240-3 EPF81500AQC240-4 FLEX 8000 FPGA Field Programmable Gate Array programmable logic device PLD CMOS SRAM 240-RQFP BFQFP RQFP EPC1 EPC1064 EPC1213 EPC1441 configuration device in-circuit reconfigurability ICR MAX+PLUS II Cyclone JTAG logic element Logic Array Block LAB FastTrack interconnect 5V exposed pad industrial control telecommunications bus bridging