EPF81188AQI208-3 - FLEX 8000 FPGA, 12K Gates, 208-Pin PQFP | Altera
MPN: EPF81188AQI208-3 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $95 | $95.00 |
| 10 | $82 | $820.00 |
| 100 | $68 | $6,800.00 |
| 500 | $55 | $27,500.00 |
| 1,000 | $45 | $45,000.00 |
Drop-in alternatives for EPF81188AQI208-3 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPF81188AQI208-2
✅ Drop-In📋 Reference alternative (not in catalog)
EPF81188AQI208-4
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$25.1 / Unit
View Datasheet →EPF81188AQC208-3
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$14.2 / Unit
View Datasheet →EPF81188AQC208-2
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$21.5 / Unit
View Datasheet →EPF81188AQC208-4
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$62 / Unit
View Datasheet →EPF81188AQI208-3 Maximum Ratings & Electrical Characteristics
| Family | FLEX 8000 |
| Usable Gates | 12,000 |
| Logic Elements | 1,008 cells |
| Registers | Up to 1,500 |
| Maximum Operating Frequency | 125 MHz |
| Typical Propagation Delay | 5.0 ns |
| Process Technology | 0.42 µm CMOS |
| Supply Voltage (Core) | 5 V |
| I/O Voltage Compatibility | 3.3 V / 5 V |
| Number of Pins | 208 |
| Package Type | PQFP (FQFP, gull-wing) |
| Package Code | FQFP |
| Terminal Form | Gull Wing |
| Configurable I/O | 148 |
| Temperature Grade | Industrial |
| In-Circuit Reconfigurability | Yes (ICR via external configuration device or controller) |
| Boundary-Scan Support | JTAG (IEEE 1149.1) |
EPF81188AQI208-3 fqfp Pin Configuration Guide
Complete pinout information for EPF81188AQI208-3 (fqfp package) with 208 pins. 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.
No detailed pinout data available for EPF81188AQI208-3.
Refer to the datasheet for full pin configuration.
Estimated pin count: 208 pins (digital package)
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
EPF81188AQI208-3 is suitable for 6 applications: Industrial Test & Measurement Equipment, Automotive Body Electronics & Lighting, Telecom Backplane Glue Logic, Broadband Fixed-Line Access Equipment, Board-Level Glue Logic Replacement, Communications Equipment - General.
Industrial Test & Measurement Equipment
The EPF81188AQI208-3's 5V core supply, industrial temperature grade (-40C to +85C), and 148 configurable I/O pins make it a strong fit for legacy test and measurement backplanes that aggregate many sensor and actuator signals. Its 125 MHz internal clock and 5.0 ns typical propagation delay accommodate timing-sensitive measurement sequences, while JTAG IEEE 1149.1 boundary scan simplifies board-level test access in production. Compared to modern 3.3V FPGAs, the EPF81188AQI208-3 interfaces directly to 5V analog front-ends without level shifters, reducing BOM cost and signal-chain noise.
Recommended
Automotive Body Electronics & Lighting
Body controllers and lighting modules that pre-date CAN-FD and modern microcontrollers often rely on FLEX 8000 logic for signal multiplexing, PWM generation, and fault handling. The EPF81188AQI208-3's 12K usable gates provide enough capacity for multiple lighting zones, while 5V I/O compatibility simplifies interfacing to legacy body-control sensors and actuators that operate at 5V levels. Its industrial temperature grade is appropriate for under-hood and cabin environments, and the 208-pin PQFP supports the high pin count required for multi-channel lighting and switch-scan matrices.
Recommended
Telecom Backplane Glue Logic
Legacy telecom backplanes frequently use FLEX 8000 devices for TDM bus multiplexing, framing, and clock distribution. The EPF81188AQI208-3's 148 user I/O pins accommodate dense parallel bus interfaces, while 5V I/O compatibility matches older line-card ASICs without additional level translation. Its in-circuit reconfigurability allows remote firmware updates for field upgrades, and JTAG support simplifies in-system test of populated backplanes. The 208-pin PQFP is rugged enough for the thermal cycling seen in central-office equipment.
Recommended
Broadband Fixed-Line Access Equipment
DSLAM line cards, optical-network terminators, and other broadband fixed-line access products in service through the early 2000s used FLEX 8000 devices for ATM/Ethernet adaptation and line-card control. The EPF81188AQI208-3's 12K-gate capacity fits mid-density adaptation logic, and its 5V I/O directly interfaces to legacy serializer/deserializer ASICs used in those designs. The PQFP-208 package supports the high signal count needed for multi-port line cards, while industrial temperature grade handles outdoor-cabinet deployments.
Recommended
Board-Level Glue Logic Replacement
Engineers replacing multiple discrete 74-series logic ICs with a single programmable device often turn to the EPF81188AQI208-3 to consolidate address decoding, bus arbitration, and interrupt steering into one chip. Its 12K usable gates replace dozens of MSI parts, and 148 user I/O accommodate wide address and data buses. Industrial temperature grade and 5V I/O match TTL/CMOS logic levels directly. The 208-pin PQFP package is available through surplus channels for legacy board redesigns that must retain the existing footprint.
Recommended
Communications Equipment - General
General communications equipment - including base-station controllers, satellite ground-station modems, and legacy protocol converters - frequently uses the EPF81188AQI208-3 as a flexible protocol engine. The device's 5.0 ns typical propagation delay supports high-speed serial protocol framing, while 148 I/O permit connection to multiple PHY devices. In-circuit reconfigurability allows field upgrades of protocol stacks, and the JTAG interface supports production boundary-scan test. Industrial temperature grade handles outdoor and uncontrolled-environment deployments common in telecom infrastructure.
Recommended
Recommended Products Summary
Engineering reference data for EPF81188AQI208-3 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF81188AQI208-2 | EPF81188AQI208-4 | EPF81188AQC208-3 | EPF81188AQC208-2 | EPF81188AQC208-4 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | PQFP-208 (FQFP, gull-wing) | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same |
| Speed Grade | -3 (5.0 ns Tpd, 125 MHz) | -2 (faster, ~4.0 ns) | -4 (slower, ~7.5 ns) | -3 (same) | -2 (faster) | -4 (slower) |
| Temperature Grade | Industrial (-40C to +85C) | Industrial (same) | Industrial (same) | Commercial (0C to +70C) | Commercial | Commercial |
| Usable Gates | 12,000 | 12,000 | 12,000 | 12,000 | 12,000 | 12,000 |
| Logic Elements | 1,008 | 1,008 | 1,008 | 1,008 | 1,008 | 1,008 |
| Configurable I/O | 148 | 148 | 148 | 148 | 148 | 148 |
| Core Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| I/O Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
Key Differentiators
- Industrial temperature grade in PQFP-208 footprint (vs EPF81188AQC208-3)
- Balanced speed/cost trade-off at -3 speed grade (vs EPF81188AQI208-2)
- 5V native I/O without external level shifters (vs EPF81188AQC240-3 (different package))
Design Notes
Estimated: at 5V core supply and typical 5% VCCIO usage across 148 I/O, the EPF81188AQI208-3 can draw 200-500 mA during configuration and active operation. Use a 4-layer PCB with a dedicated VCC plane and place 0.1 µF X7R ceramic decoupling capacitors within 5 mm of every VCC/VCCIO/VCCINT pin pair. Add bulk tantalum or polymer capacitors (22-47 µF) at each voltage-rail entry point to suppress the inrush current during configuration bitstream loading.
Estimated: at full I/O toggle (148 outputs, 20 pF load, 50 MHz) the EPF81188AQI208-3 dissipates roughly 1.5-2.0 W. The PQFP-208 package does not have an exposed pad, so thermal relief relies entirely on PCB copper pour. Provide a copper area of at least 4 square inches on the top layer beneath the device, with thermal vias to inner ground planes. For sealed enclosures, derate junction temperature by 10-15C from the 85C industrial limit.
The 208-pin PQFP gull-wing lead pitch is 0.5 mm; solder pad length should be 1.5-2.0 mm with 0.1 mm stencil aperture for lead-free reflow. Use a no-clean SAC305 paste and follow the J-STD-020 moisture sensitivity level (MSL) handling procedure - PQFP packages are typically MSL 3. Lead coplanarity must be within 0.08 mm for reliable solder joint formation. Place configuration EEPROM (e.g., EPC2 or EPC8) within 50 mm of the FPGA's DATA0/DCLK/nCONFIG pins to keep configuration traces short.
Do not confuse the EPF81188AQI208-3 (208-pin PQFP, industrial grade) with EPF81188AQC240-3 (240-pin PQFP, commercial grade) - the different pin counts make them NOT pin-compatible despite the same die. Verify that the JTAG chain order matches the BSDL file for the FLEX 8000 family, especially when mixing FLEX 8000 with FLEX 10K or MAX devices on the same scan chain. Finally, ensure the configuration mode (PS, AS, JTAG) is correctly selected via MSEL pins before power-up, as misconfiguration can prevent the device from entering user mode.
Estimated: 5V CMOS I/O on the EPF81188AQI208-3 has typical edge rates of 2-3 ns; long parallel buses (>50 mm) should be series-terminated with 33 ohm resistors to damp reflections. Keep clock traces on inner signal layers with continuous ground reference; use 4-layer stack-up with ground plane directly beneath the FPGA. For multi-FPGA designs sharing a configuration bus, add 100 ohm series resistors at each FPGA's DCLK pin to isolate configuration clock loading.
Compliance Information
RoHS, REACH, lead-free, halogen-free, and conflict-minerals status could not be confirmed from the verified web data; original FLEX 8000 family parts pre-date widespread RoHS compliance requirements and many PQFP variants are non-RoHS. AEC-Q100 not qualified - this is an industrial-grade (not automotive-grade) part.
