Altera

EPF81500AQC240-2 - FLEX 8000 FPGA 1296 LE 240-BFQFP | Altera

Name: EPF81500AQC240-2 - FLEX 8000 FPGA 1296 LE 240-BFQFP | Altera
Brand: Altera
SKU: EPF81500AQC240-2
Price: 61.4 USD
Availability: InStock

MPN: EPF81500AQC240-2 ✗ End of Life

In Stock Ships in 1-3 business days

4.75 V to 5.25 V Vdss 240-BFQFP (240-pin Fine-pitch QFP, 32x32 mm) Package -2 Speed SRAM (volatile, requires configuration download on power-up) Memory

From $61.4 USD / Unit

MOQ: 1 |

Price updated: 2026-09-11

Volume Pricing

Qty	Unit Price	Extended
1	$90.83	$90.83
10	$82.5	$825.00
100	$74.2	$7,420.00
500	$67.9	$33,950.00
1,000	$61.4	$61,400.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for EPF81500AQC240-2 — 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:

EPF81500AQC240-3

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EPF81188AQC240-2

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EPF81188AQC240-3

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EPF81188AQC240-4

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EPF81500AGC280-3

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EPF81500AQC240-2 Maximum Ratings & Electrical Characteristics

Family	FLEX 8000
Logic Elements	1296
Number of Logic Array Blocks (LABs)	162
Number of I/Os	181
Supply Voltage	4.75 V to 5.25 V
Speed Grade	-2
Package	240-BFQFP (240-pin Fine-pitch QFP, 32x32 mm)
Mounting Type	Surface Mount (gull-wing leads)
Configuration Memory	SRAM (volatile, requires configuration download on power-up)
Configuration Mode	Serial (BitBlaster) or parallel JTAG
Operating Temperature (Commercial)	0 C to +70 C
Process Technology	CMOS SRAM, 5 V tolerant I/O
JTAG Support	IEEE 1149.1 boundary-scan

EPF81500AQC240-2 240-bfqfp (240-pin fine-pitch qfp, 32x32 mm) Pin Configuration Guide

Complete pinout information for EPF81500AQC240-2 (240-bfqfp (240-pin fine-pitch qfp, 32x32 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.

240-bfqfp (240-pin fine-pitch qfp, 32x32 mm) package pinout diagram for EPF81500AQC240-2

No detailed pinout data available for EPF81500AQC240-2.

Refer to the datasheet for full pin configuration.

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

EPF81500AQC240-2 is suitable for 6 applications: Legacy Telecom Interface Bridging, Industrial Control Glue Logic Replacement, Bus-Bridging for Legacy Microprocessor Systems, Medical Equipment Long-Life Spare Parts, Aerospace Avionics Legacy Spares, Military Communication Equipment.

🌐

Legacy Telecom Interface Bridging

The EPF81500AQC240-2 fits telecom interface bridging because its 181 user I/Os and 1296 logic elements can implement multi-channel UART, SPI, and parallel bus bridges simultaneously. At 5 V tolerance, it interfaces directly with legacy telecom line cards that still use TTL or 5 V CMOS peripherals without level shifters. The 162 LABs support wide parallel data paths for TDM bus termination. Design tip: use the dedicated global clock networks for synchronous serial bit-clock distribution to keep skew within one LAB across the device.

Recommended

🏭

Industrial Control Glue Logic Replacement

The EPF81500AQC240-2 replaces dozens of 74-series MSI logic packages on legacy industrial control boards, reducing PCB area by up to 70%. With 1,296 logic elements, it implements PLC ladder-replacement logic, encoder interface state machines, and PID control loops in a single device. The 240-BFQFP package supports through-hole rework, valuable when servicing long-life industrial systems with 15-20 year field-deployment horizons.

Recommended

EPF81188AQC240-3 · Altera EPF81188AQC240-4 · Altera

🖥️

Bus-Bridging for Legacy Microprocessor Systems

The EPF81500AQC240-2's 181 I/Os and 5 V tolerance make it an ideal bus-bridge between legacy 8051, 68k, or PowerPC microprocessors and modern peripherals. The 1,296 logic elements comfortably implement wait-state insertion, byte-swapping, and interrupt-controller functions. The SRAM configuration allows firmware updates via JTAG in the field, supporting long-life medical and avionics systems where PCB rework is impractical.

Recommended

EPF81188AQC240-2 · Altera EPF81500AQC240-3 · Altera

💊

Medical Equipment Long-Life Spare Parts

The EPF81500AQC240-2 serves medical equipment manufacturers maintaining FDA-locked BOMs for diagnostic imaging and patient monitoring systems. Because re-validation cost dominates replacement cost, legacy FPGAs remain in production spare parts inventories for 15+ years. The 240-BFQFP package is hand-solderable, simplifying field service. Rochester Electronics and authorized aftermarket channels stock this part for medical OEMs as of 2026-09-12.

Recommended

EPF81188AQC240-4 · Altera EPF81188AQC240-3 · Altera

✈️

Aerospace Avionics Legacy Spares

The EPF81500AQC240-2 supports avionics DO-254-certified systems where design re-validation is prohibitively expensive. Its 5 V tolerance interfaces with legacy cockpit displays, flight-control sensors, and navigation receivers. The 162 LABs and JTAG boundary-scan simplify production testing per DO-254 objectives. Pin-compatible FLEX 8000 variants allow sourcing flexibility for long-tail avionics support programs spanning decades.

Recommended

EPF81188AQC240-2 · Altera EPF81500AQC240-3 · Altera

🎥

Military Communication Equipment

The EPF81500AQC240-2 enables MIL-STD-188 and tactical radio interface logic in military communication equipment, where 5 V tolerance and robust 240-BFQFP mechanical packaging are valued. With 1,296 logic elements, the device implements encryption handshake state machines, link-layer protocols, and signal-conditioning glue logic. JTAG boundary-scan satisfies military testability requirements, and authorized aftermarket supply channels ensure long-term availability for defense procurement programs.

Recommended

EPF81188AQC240-4 · Altera EPF81188AQC240-2 · Altera

Recommended Products Summary

EPF81188AQC240-2 Altera Used in: Legacy Telecom Interface Bridging, Bus-Bridging for Legacy Microprocessor Systems, Aerospace Avionics Legacy Spares, Military Communication Equipment EPF81500AQC240-3 Altera Used in: Legacy Telecom Interface Bridging, Bus-Bridging for Legacy Microprocessor Systems, Aerospace Avionics Legacy Spares EPF81188AQC240-3 Altera Used in: Industrial Control Glue Logic Replacement, Medical Equipment Long-Life Spare Parts EPF81188AQC240-4 Altera Used in: Industrial Control Glue Logic Replacement, Medical Equipment Long-Life Spare Parts, Military Communication Equipment

What is the EPF81500AQC240-2 FPGA?

The EPF81500AQC240-2 is a FLEX 8000 family Field Programmable Gate Array from Altera (now Intel), integrating 1,296 logic elements across 162 LABs with 181 user I/Os. Housed in a 240-BFQFP package and speed-grade -2, it operates from a single 4.75 V to 5.25 V supply. According to the Altera FLEX 8000 datasheet family, this part uses SRAM configuration memory and requires re-configuration on every power-up.

What is the logic capacity of EPF81500AQC240-2?

The EPF81500AQC240-2 provides 1,296 logic elements organized into 162 Logic Array Blocks (LABs), with 181 usable I/O pins. Each LAB contains eight 4-input look-up tables and dedicated carry chains, giving approximately 10,000 usable gates for typical designs. This capacity places it in the small-to-medium density tier of legacy FPGAs, suitable for bus bridges, glue logic, and state-machine heavy designs.

What is the operating voltage of EPF81500AQC240-2?

The EPF81500AQC240-2 operates from a 4.75 V to 5.25 V single supply, fully compatible with TTL and 5 V CMOS logic. According to Altera FLEX 8000 datasheet specifications, the core logic and I/O share this single rail. Designers must provide 0.1 µF decoupling capacitors placed within 6 mm of every VCC/GND pair to suppress switching transients.

What package does EPF81500AQC240-2 use?

The EPF81500AQC240-2 uses a 240-BFQFP package (240-pin Fine-pitch Quad Flat Pack) with a 32 mm × 32 mm body and 0.5 mm lead pitch. This gull-wing surface-mount package is larger than modern BGA alternatives but provides excellent thermal performance for through-hole rework and breadboard-friendly prototyping in legacy designs.

Is the EPF81500AQC240-2 still in production?

No, the EPF81500AQC240-2 is marked obsolete on distributor channels and is only available from authorized aftermarket inventory (Rochester Electronics, Heisener, and DigiKey legacy stock). Lead time for existing inventory is typically immediate to 5 business days as of 2026-09-12, but no new wafer production is planned. Engineers should evaluate modern replacements such as Cyclone IV or MAX V CPLDs for new designs.

Where to buy EPF81500AQC240-2 online?

The EPF81500AQC240-2 is available as of 2026-09-12 from DigiKey, Mouser, Heisener (8,292 pieces in stock), Arrow, and Rochester Electronics. Pricing varies by quantity: roughly $90.83 unit at qty 1, dropping to $61.40 at qty 1000. Authorized aftermarket distributors (Rochester Electronics) typically carry the largest remaining inventory for end-of-life FPGAs.

What is the price of EPF81500AQC240-2?

The EPF81500AQC240-2 unit price is $90.83 at qty 1 (Heisener, as of 2026-09-12), with volume discounts reaching approximately $61.40 at qty 1000. Distributor pricing varies by channel: DigiKey typically quotes lower at low quantities while Rochester Electronics serves long-tail aftermarket demand. For budget-critical designs, consider the slower speed-grade EPF81500AQC240-3 or lower-density EPF81188AQC240-2 from the same family.

What is the lead time for EPF81500AQC240-2?

Lead time for EPF81500AQC240-2 is immediate to 5 business days as of 2026-09-12, with Heisener showing in-stock quantity of 8,292 pieces and Rochester Electronics maintaining authorized inventory. Because this part is obsolete, lead times can fluctuate sharply; orders should be placed against PO windows of 6-12 months. Long-term supply contracts with aftermarket distributors are recommended for production support.

Is EPF81500AQC240-2 in stock?

Yes, the EPF81500AQC240-2 is currently in stock as of 2026-09-12 at Heisener (8,292 pieces) and through DigiKey/Mouser authorized aftermarket channels. Availability reflects existing wafer inventory rather than new production. For high-volume needs, contact Rochester Electronics directly for bonded inventory contracts to lock supply over multi-year horizons.

EPF81500AQC240-2 vs EPF81500AQC240-3 - which is better?

The EPF81500AQC240-2 (speed grade -2) and EPF81500AQC240-3 (speed grade -3) share the same FLEX 8000 architecture, 1296 logic elements, and 240-BFQFP package. The -2 grade provides approximately 25-30% faster internal timing than the -3 grade, making the -2 preferable for timing-critical applications while the -3 is typically priced lower and consumes marginally less dynamic power.

EPF81500AQC240-2 vs EPF81188AQC240-2 - which to choose?

The EPF81500AQC240-2 delivers 1296 logic elements with 162 LABs, while the EPF81188AQC240-2 provides 1188 logic elements with 148 LABs in the same 240-BFQFP footprint. Both parts are pin-compatible within the FLEX 8000 family, so the EPF81188AQC240-2 is a drop-in replacement for cost-sensitive designs. For higher gate utilization, the EPF81500AQC240-2 remains the preferred choice.

When should I choose EPF81500AQC240-2 over a modern Cyclone FPGA?

Choose the EPF81500AQC240-2 only when maintaining a legacy FLEX 8000-based design where the PCB footprint, configuration firmware, and timing closure are already verified. For new designs, modern Cyclone IV or Cyclone 10 LP devices offer 4-10x higher logic density, lower power, and active support. The EPF81500AQC240-2 is justified for legacy OEM replacement, medical/industrial long-life systems with locked BOMs, and spare-part production runs.

What is the best drop-in replacement for EPF81500AQC240-2?

The best drop-in replacements for the EPF81500AQC240-2 are EPF81500AQC240-3 (slower speed grade, same package) and EPF81188AQC240-2 (1188 logic elements, lower density). For modern designs, consider MAX V CPLD as a 5 V compatible non-volatile alternative, or Cyclone IV EP4CE6E22 for active-production FPGA replacement. All three FLEX 8000 variants share the same 240-BFQFP footprint and JTAG configuration interface.

Where can I download the EPF81500AQC240-2 datasheet PDF?

The EPF81500AQC240-2 datasheet PDF is available from Alldatasheet at https://www.alldatasheet.com/datasheet-pdf/pdf/595520/ALTERA/EPF81500AQC240-2.html. For the full FLEX 8000 family datasheet including architecture, configuration, and timing specifications, refer to the Altera FLEX 8000 datasheet (DS-FLEX8000-2.5). Authorized distributors (DigiKey, Mouser) also host datasheet PDFs on the product detail page.

Where is the pinout for EPF81500AQC240-2?

The pinout for the EPF81500AQC240-2 240-BFQFP package is documented in the Altera FLEX 8000 datasheet family, specifically the package pinout table for the 240-pin QFP variant. According to the datasheet, user I/O banks group I/O pins on the package periphery, with dedicated VCC and GND pins distributed around the device. For full pin-by-pin assignments, download the datasheet and refer to the EPF81500AQC240 pin table.

Hey Google, can I replace EPF81500AQC240-2 with a 3.3 V FPGA?

No, a 3.3 V FPGA cannot directly replace the EPF81500AQC240-2 because the FLEX 8000 family operates from a 5 V supply (4.75 V to 5.25 V). I/O voltage mismatch would cause logic-level incompatibility with existing 5 V peripherals. If 3.3 V operation is required, redesign with level-shifters or select a 3.3 V-native family such as Altera Cyclone IV or Lattice ispMACH 4000ZE.

What are the key specifications of EPF81500AQC240-2 that engineers should know?

Key specifications: 1296 logic elements, 162 LABs, 181 user I/Os, 240-BFQFP 32x32 mm package, 4.75-5.25 V single supply, speed grade -2, SRAM configuration memory, JTAG IEEE 1149.1 support, and commercial 0C to +70C operating temperature. The device supports serial and parallel configuration modes. According to Altera FLEX 8000 documentation, internal global clock networks distribute clocks across all LABs with predictable skew, simplifying timing closure.

What is the best Altera equivalent for EPF81500AQC240-2 in a new design?

For new designs replacing the EPF81500AQC240-2 within the Altera/Intel ecosystem, the best equivalent is the EP4CE6E22 (Cyclone IV E) which offers 6270 logic elements at lower cost and active production. For 5 V-tolerant designs with non-volatile configuration, the Altera MAX V CPLD family (5M240ZT100) provides a similar I/O count. Both replacements require PCB rework because the package and pinout differ from the 240-BFQFP FLEX 8000 footprint.

Engineering reference data for EPF81500AQC240-2 — comparison, design guidance, and compliance information.

Selection Guide

Choose the EPF81500AQC240-2 when you need the highest density (1296 LE) within the FLEX 8000 240-BFQFP family for legacy designs where the PCB footprint, configuration firmware, and timing closure are already verified. For cost-sensitive legacy production, choose EPF81188AQC240-2 (1188 LE, ~10% lower unit cost). For designs that do not require maximum timing margin, the EPF81500AQC240-3 (speed grade -3) provides equivalent density at lower unit price. All five 240-BFQFP FLEX 8000 variants share the same JTAG configuration interface, enabling firmware reuse across the family.

Comparison with Alternatives

Parameter	This Product	EPF81500AQC240-3	EPF81188AQC240-2	EPF81188AQC240-3	EPF81188AQC240-4
Brand	Altera (Intel)	Altera (Intel)	Altera (Intel)	Altera (Intel)	Altera (Intel)
Package	240-BFQFP	240-BFQFP	240-BFQFP	240-BFQFP	240-BFQFP
Logic Elements	1296	1296	1188	1188	1188
Number of LABs	162	162	148	148	148
User I/Os	181	181	177	177	177
Supply Voltage	4.75 V to 5.25 V	4.75 V to 5.25 V	4.75 V to 5.25 V	4.75 V to 5.25 V	4.75 V to 5.25 V
Speed Grade	-2 (faster)	-3	-2	-3	-4
Lifecycle Status	Obsolete	Obsolete	Obsolete	Obsolete	Obsolete

Key Differentiators

Highest logic density within FLEX 8000 240-BFQFP family (vs EPF81188AQC240-2)
Faster speed grade -2 reduces timing closure pressure (vs EPF81500AQC240-3)
Maximum I/O count within the FLEX 8000 BFQFP family (vs EPF81188AQC240-2)

Design Notes

The EPF81500AQC240-2 requires a tightly regulated 5 V supply (4.75 V to 5.25 V) with bulk decoupling of 33 µF tantalum and 0.1 µF ceramic capacitors placed within 6 mm of every VCC and GND pin pair. Because FLEX 8000 devices exhibit high inrush current during configuration (up to 300 mA peak), use a soft-start circuit on the regulator to prevent supply collapse. Estimated: configuration inrush current 300 mA peak based on typical FLEX 8000 family datasheet values.

Configuration memory is volatile SRAM - the EPF81500AQC240-2 must be reconfigured on every power-up via a serial configuration EPROM (EPC1, EPC1441) or JTAG download. Designs that forget this step appear to 'brick' on power-up. Always include a configuration clock source and confirm the nCONFIG and nSTATUS pins have proper pull-ups. Do not assume factory pre-configuration - this part ships unconfigured.

Estimated: at 100% logic utilization with 5.0 V supply and 25 MHz clock, typical FLEX 8000 power dissipation is around 1.2 W to 1.8 W, requiring copper pour on inner PCB layers to maintain junction temperature below 125 C. The 240-BFQFP package (theta_JA approximately 25 C/W on a 4-layer JEDEC test board) provides moderate thermal headroom; designs operating above 70 C ambient should include thermal vias under the exposed die flag area or use forced-air cooling.

Compliance Information

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

Lead Free

Unknown

Halogen Free

Unknown

Conflict Minerals

Unknown

RoHS/REACH compliance not explicitly documented in the Verified Web Data for this legacy FLEX 8000 part. AEC-Q100 not applicable for FPGA logic devices.

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

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

Related Components & Terms

Altera Intel EPF81500AQC240-2 EPF81500AQC240-3 EPF81188AQC240-2 EPF81188AQC240-3 EPF81188AQC240-4 FLEX 8000 FPGA Field Programmable Gate Array Logic Element Logic Array Block SRAM configuration memory 240-BFQFP QFP JTAG IEEE 1149.1 BitBlaster ByteBlaster 5V CMOS Rochester Electronics legacy FPGA industrial control telecom interface glue logic