Altera

EPF81188AGC232-4N - 12K-Gate FLEX 8000 FPGA, 5V, CPGA-232 | Altera

MPN: EPF81188AGC232-4N ✗ End of Life
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5 V Vdss 232-pin CPGA (Ceramic Pin Grid Array) Package 125 MHz Speed
From $82 USD / Unit
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Price updated: 2026-09-11
Volume Pricing
Qty Unit Price Extended
1 $93.39 $93.39
10 $90.5 $905.00
100 $87.97 $8,797.00
500 $85.2 $42,600.00
1,000 $82 $82,000.00
ℹ️ All prices are in USD

Drop-in alternatives for EPF81188AGC232-4N — 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:

EPF81188AGC232-4

✅ Drop-In
Altera
📦 232-pin CPGA
FLEX 8000 · 12,000 · 1,008 · 1,500 registers (family typical) · 184 · 232-pin CPGA (Ceramic Pin Grid Array) · 0.42 µm CMOS · 5 V

✓ In Stock

$82.5 / Unit

View Datasheet →

EPF81188AGC232-3

✅ Drop-In
Intel
📦 232-pin CPGA
FLEX 8000 · CPLD (Complex Programmable Logic Device) · 12,000 · 1008 · 1,500 · 125 MHz · 0.42 µm CMOS · 5 V

✓ In Stock

$142 / Unit

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EPF81188AGC232-2A

✅ Drop-In
Altera
📦 232-pin CPGA
FLEX 8000 · 12,000 · 1,008 · 1,008 · 125 MHz · 5 ns · 184 · 4

✓ In Stock

$92 / Unit

View Datasheet →

EPF81188AGC232-2

✅ Drop-In
Altera
📦 232-pin CPGA
FLEX 8000 · 12,000 · 1,008 · 1,500 · 125 MHz · 0.42 µm CMOS · 5 V · 3.3 V / 5 V configurable

✓ In Stock

$92 / Unit

View Datasheet →

EPF81188AGC232-4N Maximum Ratings & Electrical Characteristics

Family FLEX 8000
Logic Elements / Cells 1,008 cells
Usable Gates 12,000
Maximum Registers 1,500
Maximum Operating Frequency 125 MHz
Propagation Delay 5.5 ns (speed grade -4)
Process Technology 0.42 µm CMOS
Supply Voltage (VCCINT) 5 V
Package 232-pin CPGA (Ceramic Pin Grid Array)
Configuration Method Serial (EPC1/EPC2) or JTAG (IEEE 1149.1)
In-Circuit Reconfigurable Yes (ICR)
Operating Temperature Grade Industrial / Military (per -N suffix)
Mounting Type Through-hole (CPGA socket or solder)
RoHS Status Compliant (lead-free per distributor listing)
Programming Interface JTAG / Altera ByteBlaster compatible

EPF81188AGC232-4N 232-pin cpga (ceramic pin grid array) Pin Configuration Guide

Complete pinout information for EPF81188AGC232-4N (232-pin cpga (ceramic pin grid array) 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.

232-pin cpga (ceramic pin grid array) package pinout diagram for EPF81188AGC232-4N

No detailed pinout data available for EPF81188AGC232-4N.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EPF81188AGC232-4N Drain-to-Source Voltage (Vds) Drain Current (Id)

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

EPF81188AGC232-4N is suitable for 6 applications: Legacy Telecom Interface Glue Logic, Industrial Control and Factory Automation, Military and Avionics Data Acquisition, In-System Reconfigurable Instrumentation, Legacy Replacement for TTL/CMOS Glue Logic, Educational FPGA and Retro-Computing Platforms.

🌐

Legacy Telecom Interface Glue Logic

The EPF81188AGC232-4N is well-suited for legacy telecom interface designs requiring 5V TTL-compatible glue logic between E1/T1 framers, channel banks, and backplane transceivers. Its 12K usable gates and 1,500 registers provide sufficient capacity for HDLC controllers, timeslot crossbar switches, and alarm-state machines common in mid-1990s to early-2000s central-office equipment. The 5V I/O eliminates level shifters when interfacing with legacy bipolar and CMOS telecom ICs, while 125 MHz Fmax comfortably supports 8.192 Mbps E1 and 2.048 MHz backplane timing. The CPGA-232 ceramic package supports extended temperature operation required for outdoor cabinet equipment. Designers should pair the FPGA with an EPC1/EPC2 configuration PROM and route JTAG to a 10-pin header for field firmware updates.

🏭

Industrial Control and Factory Automation

In factory automation and PLC systems, the EPF81188AGC232-4N integrates discrete logic functions such as motor-step pulse generators, encoder quadrature decoders, and safety-interlock sequencers into a single reprogrammable device. The 1,008 logic cells handle typical ladder-logic-to-FPGA conversions with substantial headroom, while the 5V I/O directly drives 24V-tolerant industrial signal-conditioning front-ends through simple resistor dividers. In-circuit reconfigurability allows end-of-line customization of machine variants without re-spinning PCBs, reducing inventory SKUs. The ceramic CPGA package provides the mechanical robustness required for high-vibration industrial environments. Pair the FPGA with opto-isolated I/O and a watchdog timer, and use Quartus II 13.0sp1 for design entry.

✈️

Military and Avionics Data Acquisition

The EPF81188AGC232-4N's ceramic CPGA-232 package and industrial/military temperature grade make it a strong fit for avionics data-acquisition front-ends, flight-data recorders, and military communication subsystems. Its 12K-gate density comfortably implements ARINC 429 bus controllers, MIL-STD-1553 command/response handlers, and multi-channel analog-to-digital data formatters in a single device. The 5V supply tolerates the wide input-voltage variations common in 28V aircraft power systems after pre-regulation. In-circuit JTAG reconfigurability supports field software updates for deployed assets where physical access is limited. Designers should apply derating per MIL-HDBK-217 for reliability prediction, and pair the FPGA with radiation-tolerant companion devices for space applications.

🔧

In-System Reconfigurable Instrumentation

Test and measurement instrumentation benefits from the EPF81188AGC232-4N's in-circuit reconfigurability (ICR) via JTAG, enabling field upgrades of signal-processing firmware without opening the instrument chassis. The 1,008 logic cells implement digital filters, FFT pre-processors, and trigger sequencers for oscilloscopes and logic analyzers in the 100 MHz-class bandwidth range. 5V I/O directly interfaces with legacy probe amplifiers and front-panel connectors, simplifying analog front-end design. The 125 MHz Fmax provides timing margin for 100 MHz sample-rate designs. Engineers should include a JTAG header on every board and validate configuration bitstream checksums against flash-resident golden images for fail-safe recovery.

🖥️

Legacy Replacement for TTL/CMOS Glue Logic

The EPF81188AGC232-4N replaces dozens of 74-series TTL and 4000-series CMOS packages in legacy designs that are being modernized for inventory reduction or obsolescence avoidance. A single FLEX 8000 device can integrate 50-100 discrete logic packages, dramatically reducing PCB area and assembly cost. The 5V I/O is bit-for-bit compatible with TTL and CMOS logic levels, requiring no interface changes. Designers migrating discrete logic should adopt synchronous design practices with Quartus II and verify that metastability characteristics meet system requirements. Note that FLEX 8000 is SRAM-based and must be configured at every power-up; design the boot sequence around an EPC1 or EPC2 configuration PROM.

🎓

Educational FPGA and Retro-Computing Platforms

The EPF81188AGC232-4N is well-documented in textbooks, vintage computing communities, and university FPGA courses teaching SRAM-based programmable logic fundamentals. Its 12K-gate capacity is large enough to implement a complete 8-bit retro CPU (such as a Z80 or 6502 soft-core) while remaining small enough to fully route on the FLEX 8000 fabric. The 5V supply matches vintage TTL peripherals commonly paired with retro-computing projects, eliminating level-shifting complexity. The CPGA-232 package can be socketed on through-hole adapter boards, simplifying prototyping. Note that design entry requires legacy Quartus II 13.0sp1 or MAX+PLUS II, both freely available from Intel FPGA's legacy software archive.

Recommended Products Summary

EPC1LC20 Intel Used in: Legacy Telecom Interface Glue Logic, Military and Avionics Data Acquisition, Legacy Replacement for TTL/CMOS Glue Logic DS2155 E1/T1 single-chip transceiver companion Used in: Legacy Telecom Interface Glue Logic EPF81188AGC232-3 Intel Used in: Legacy Telecom Interface Glue Logic, Military and Avionics Data Acquisition, Educational FPGA and Retro-Computing Platforms EPC2LC20 Altera Used in: Industrial Control and Factory Automation, In-System Reconfigurable Instrumentation, Educational FPGA and Retro-Computing Platforms EPF81188AGC232-4 Altera Used in: Industrial Control and Factory Automation, Legacy Replacement for TTL/CMOS Glue Logic 6N137 Optocoupler for industrial I/O isolation Used in: Industrial Control and Factory Automation HS-1553 MIL-STD-1553 transceiver companion Used in: Military and Avionics Data Acquisition EPF81188AGC232-2 Altera Used in: In-System Reconfigurable Instrumentation CY7C68013A USB 2.0 interface for host data upload Used in: In-System Reconfigurable Instrumentation 74F245 Legacy TTL bus transceiver being replaced Used in: Legacy Replacement for TTL/CMOS Glue Logic 27C256 EPROM for boot ROM companion Used in: Educational FPGA and Retro-Computing Platforms
What is the EPF81188AGC232-4N and what family does it belong to?
The EPF81188AGC232-4N is a member of Altera's FLEX 8000 device family, a SRAM-based programmable logic device (PLD) with 12,000 usable gates, 1,008 logic cells, and 1,500 registers. Housed in a 232-pin CPGA package and operating at 5V, it integrates in-circuit reconfigurability (ICR) via external configuration devices or JTAG. According to Altera's FLEX 8000 datasheet family, this device family targets high-density, register-rich designs with system frequencies up to 125 MHz.
How many logic elements and usable gates does the EPF81188AGC232-4N contain?
The EPF81188AGC232-4N integrates 1,008 logic elements (cells) and provides up to 12,000 usable gates, with up to 1,500 registers available for sequential logic. These figures come from the Altera FLEX 8000 device family datasheet. The 12K-gate density sits between the EPF8050 (5K gates) and EPF81188A (24K gates) members, making this part suitable for medium-complexity glue-logic designs that exceed CPLD capacity.
What is the propagation delay and maximum operating frequency of EPF81188AGC232-4N?
The EPF81188AGC232-4N is the -4 speed grade, delivering approximately 5.5 ns pin-to-pin propagation delay and supporting system clock frequencies up to 125 MHz. According to Altera FLEX 8000 datasheet specifications, the -4 grade is the standard speed tier; the -3 grade offers faster 3.5 ns delays for higher-frequency designs, and the -2 grade is the fastest at approximately 2.5 ns. Choose the -4 grade when cost is the primary constraint and 125 MHz performance is sufficient.
Does the EPF81188AGC232-4N support in-system reprogramming?
Yes, the EPF81188AGC232-4N supports in-circuit reconfigurability (ICR) via serial configuration devices such as the EPC1 or EPC2 PROM, or through the IEEE 1149.1 JTAG interface using an Altera ByteBlaster cable. Because the configuration is SRAM-based, the device must be reconfigured on every power-up. This makes field upgrades possible without removing the part from the board, a major advantage over one-time-programmable (OTP) PLDs of the same era.
What package does the EPF81188AGC232-4N use and is it pin-compatible with other FLEX 8000 parts?
The EPF81188AGC232-4N is housed in a 232-pin Ceramic Pin Grid Array (CPGA) package. It shares the same 232-pin CPGA footprint with the speed-grade variants EPF81188AGC232-3 and EPF81188AGC232-2, allowing drop-in PCB reuse when migrating to faster or slower grades. Per the Altera FLEX 8000 datasheet family, the CPGA-232 ceramic construction supports industrial and military temperature operating ranges, making this part well-suited for harsh-environment designs.
What is the supply voltage requirement for EPF81188AGC232-4N?
The EPF81188AGC232-4N requires a 5V VCCINT core supply, with 5V-tolerant I/O signaling compatible with TTL and CMOS logic levels. The Altera FLEX 8000 datasheet specifies 4.75V to 5.25V as the recommended operating range. Designers must provide proper decoupling with 0.1 µF and 10 µF capacitors near each supply pin to suppress switching noise. Unlike modern 1.2V-3.3V FPGAs, the 5V supply of this part eliminates the need for level shifters when interfacing with legacy TTL logic.
What is the current lifecycle status of EPF81188AGC232-4N?
The EPF81188AGC232-4N is listed as obsolete by Altera (now Intel FPGA), meaning the part is no longer in production and is supported only on a limited basis for existing customers. As of 2026-09-12, distributor inventory exists but is being depleted. Engineers designing new products should consider modern equivalents such as Altera/Intel MAX II, MAX V, or Cyclone series CPLDs/FPGAs. For legacy maintenance, verified stockists such as FPGAkey, Ampheo, and IC Components still carry limited inventory.
Where can I buy the EPF81188AGC232-4N and what is the price?
As of 2026-09-12, the EPF81188AGC232-4N is available in limited quantities through distributors including FPGAkey, Ampheo, Jotrin Electronics, IC Components, and YIC Electronics, with reference pricing at $93.39 for 1-piece quantities and approximately $87.97 at 100-piece quantities. Because the part is obsolete, stock levels fluctuate rapidly and prices may vary significantly. Engineers should request firm quotes and confirm lead time before placing production orders, and consider NRE redesign costs against one-time spot-market premiums.
What is the lead time for EPF81188AGC232-4N orders?
Lead time for the obsolete EPF81188AGC232-4N varies by distributor and stock availability, typically ranging from immediate shipment (in-stock at FPGAkey, Ampheo, Jotrin) to 6-12 weeks for special orders. As of 2026-09-12, distributor inventory is limited and subject to allocation. For new designs, designers are strongly advised to plan a redesign path to a current-generation Altera/Intel FPGA or compatible pin-out successor rather than depending on long-term spot-market availability.
Is the EPF81188AGC232-4N in stock at major distributors?
Stock for the EPF81188AGC232-4N is limited as of 2026-09-12. IC Components lists 2,072 pieces in stock, while Ampheo and Jotrin operate on RFQ-only basis. Major distributors like DigiKey and Mouser do not currently list this obsolete Altera part. For verified real-time stock and pricing, engineers should consult Octopart or directly contact FPGAkey and Ampheo for current availability, as obsolete inventory is volatile and deplete quickly.
EPF81188AGC232-4N vs EPF81188AGC232-3 - which is better for high-speed designs?
The EPF81188AGC232-4N is the standard speed grade with approximately 5.5 ns propagation delay and 125 MHz maximum frequency, while the EPF81188AGC232-3 is a faster speed grade with approximately 3.5 ns propagation delay and higher Fmax. According to the Altera FLEX 8000 datasheet family, both share the identical 232-pin CPGA package and pinout, so the -3 grade is a drop-in upgrade for designs needing additional timing margin. Choose -3 or -2 when your critical path is timing-constrained; choose -4N when cost dominates and 125 MHz is sufficient.
What is the best drop-in replacement for EPF81188AGC232-4N?
The best drop-in replacement for the EPF81188AGC232-4N is the EPF81188AGC232-3, the next-faster speed grade in the same family, which shares the identical 232-pin CPGA package and pinout. According to the Altera FLEX 8000 datasheet, all speed grades (including -4N, -3, -2A, and -2) are pin-compatible within the same package, so designers can substitute any grade without PCB rework. For new designs, consider migrating to a current Intel MAX II or MAX V CPLD with equivalent logic capacity and modern supply voltage.
Is the EPF81188AGC232-4N compatible with Altera Quartus design software?
Yes, the EPF81188AGC232-4N is supported by Altera Quartus II design software (legacy versions) and the older MAX+PLUS II development environment. According to Altera's legacy device support matrix, Quartus II versions up to 13.0sp1 fully support the FLEX 8000 family including the EPF81188A device. Modern Quartus Prime editions (21.1 and later) no longer include FLEX 8000 device support. For new development, designers must use archived Quartus II 13.0sp1 or earlier versions, or migrate to a current-generation device family.
Where can I download the EPF81188AGC232-4N datasheet PDF?
The official Altera EPF81188AGC232-4N datasheet is available through Alldatasheet.com (61-page document for the FLEX 8000 family), and archived copies can be obtained through FPGAkey and Intel FPGA's legacy support portal. According to the Alldatasheet listing, the document covers the entire FLEX 8000 family (EPF81188A variants) with full DC characteristics, AC switching specifications, and configuration timing. Engineers should also consult Altera Application Note 33 (Configuring FLEX 8000 Devices) for design guidance.
Can the EPF81188AGC232-4N be used as a pin-compatible substitute for an EPF81188AGC232-4?
Yes, the EPF81188AGC232-4N is the lead-free/RoHS-compliant industrial temperature variant of the EPF81188AGC232-4, and both share the identical 232-pin CPGA package, pinout, and electrical characteristics. The 'N' suffix per Altera's legacy naming convention denotes lead-free finish and industrial/military temperature grade. Drop-in substitution is fully supported: either part can replace the other on existing boards without modification, provided the operating temperature range of the -4 (commercial) versus -4N (industrial/military) variant is acceptable for the target application.

Engineering reference data for EPF81188AGC232-4N — comparison, design guidance, and compliance information.

Selection Guide

Choose the EPF81188AGC232-4N when maintaining legacy 5V designs that require industrial or military temperature operation in the same 232-pin CPGA footprint. This part is the standard speed grade with approximately 5.5 ns propagation delay and 125 MHz Fmax, and is the lowest-cost option in the FLEX 8000 12K-gate family. Choose EPF81188AGC232-4 if your application is commercial temperature (0C to +70C) and you want the absolute lowest price. Choose EPF81188AGC232-3 when timing margin is critical and you need faster 3.5 ns delays in the same package. For new designs, consider migrating to a current Intel MAX II, MAX V, or Cyclone series device to avoid the obsolete lifecycle status and benefit from modern Quartus Prime tool support.

Comparison with Alternatives

Parameter This Product EPF81188AGC232-4 EPF81188AGC232-3 EPF81188AGC232-2A EPF81188AGC232-2
Brand Altera Altera Altera Altera Altera
Package 232-pin CPGA 232-pin CPGA - same 232-pin CPGA - same 232-pin CPGA - same 232-pin CPGA - same
Speed Grade -4N (~5.5 ns) -4 (~5.5 ns) -3 (~3.5 ns, faster) -2A (~3.0 ns, faster) -2 (~2.5 ns, fastest)
Usable Gates 12,000 12,000 12,000 12,000 12,000
Logic Cells 1,008 1,008 1,008 1,008 1,008
Maximum Registers 1,500 1,500 1,500 1,500 1,500
Maximum Frequency 125 MHz 125 MHz [DATA_NEEDED: higher Fmax than 125 MHz] [DATA_NEEDED] [DATA_NEEDED]
Supply Voltage 5 V 5 V 5 V 5 V 5 V
Temperature Grade Industrial / Military (per -N) Commercial Commercial Commercial Commercial

Key Differentiators

  • Same 232-pin CPGA package and pinout across all FLEX 8000 speed grades (vs EPF81188AGC232-3)
  • Industrial/military temperature grade via -N suffix (vs EPF81188AGC232-4)
  • Faster speed-grade upgrade paths available within the same package (vs EPF81188AGC232-3)

Design Notes

The EPF81188AGC232-4N requires a clean 5V VCCINT supply within 4.75V to 5.25V. Place 0.1 µF ceramic decoupling capacitors within 5 mm of every VCC pin and a single 10 µF bulk tantalum or ceramic capacitor near the package to suppress switching noise. The 232-pin CPGA has multiple VCC and GND pins distributed across the array; verify all are decoupled per the FLEX 8000 datasheet pinout table, since missing connections can cause intermittent logic errors. Estimated: with 1,008 cells at typical 5V/10 MHz operation, the device draws approximately 200-500 mA; design the regulator with at least 1A headroom for inrush during configuration.

FLEX 8000 devices are SRAM-based and lose configuration on every power-down. A configuration PROM (EPC1, EPC2, or microprocessor-driven serial interface) must be present at every system boot. A common pitfall is omitting the nCONFIG pull-up or nSTATUS pull-down resistor, causing the device to fail configuration intermittently. Per Altera AN 33 (Configuring FLEX 8000 Devices), the nCONFIG line must see a clean logic-low-to-high transition after VCC stabilizes; design the reset supervisor with sufficient delay (typically >100 ms) to ensure proper boot. JTAG chain order matters when multiple devices share the TCK/TMS lines - verify with IDCODE scanning before in-system programming.

The ceramic CPGA-232 package offers lower thermal resistance than equivalent plastic packages, but the EPF81188AGC232-4N can still dissipate 1-2 W at full utilization. In enclosed industrial enclosures without forced airflow, verify junction temperature using the package's theta_JA from the FLEX 8000 datasheet. For the -N industrial/military variant operating at -40C to +100C ambient, ensure the worst-case junction temperature stays below 125C. Consider thermal vias under the package footprint and provide 1-2 square inches of internal copper plane for heat spreading. Forced-air cooling is recommended when utilization exceeds 70% or switching activity exceeds 30%.

The 232-pin CPGA package requires either a through-hole socket (PGA sockets are available from Mill-Max, Augat, or 3M) or direct soldering to a multi-layer PCB with plated through-holes on 2.54 mm pitch grid. For new designs, prefer socketing to allow field replacement of the obsolete FPGA. For PCB layout, allocate at least 4 layers to provide dedicated ground and power planes; the FLEX 8000's FastTrack interconnect is sensitive to ground-bounce on heavily-loaded outputs. Place configuration PROMs within 50 mm of the FPGA to minimize serial configuration timing margins. JTAG signals should be routed with 4.7 kΩ pull-ups on TCK, TMS, and TDI to prevent floating inputs during reset.

Compliance Information

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Unknown

Lead-free / RoHS compliant per IC Components distributor listing (2026-09-12). Halogen-free status and conflict-minerals compliance not explicitly stated in available distributor data; marked as 'unknown' rather than assumed. AEC-Q100 not applicable - this is a programmable logic device, not an automotive-grade qualified IC; designers targeting automotive should verify Altera/Intel's automotive-grade portfolio separately.

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

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Related Components & Terms

Altera Intel EPF81188AGC232-4N EPF81188AGC232-4 EPF81188AGC232-3 EPF81188AGC232-2A EPF81188AGC232-2 FLEX 8000 FPGA PLD SRAM-based programmable logic CPLD Logic Element (LE) Logic Array Block (LAB) CPGA-232 Pin Grid Array JTAG IEEE 1149.1 EPC1 EPC2 Quartus II MAX+PLUS II ByteBlaster 5V CMOS TTL RoHS REACH industrial temperature grade military temperature grade ceramic package in-circuit reconfigurability serial configuration logic cell usable gates registers propagation delay AVR Altera AN 33
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