EPF81188AQC208-4 - FLEX 8000 FPGA 12K Gates 1008 Cells 5V | Intel
MPN: EPF81188AQC208-4 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $95 | $95.00 |
| 10 | $85 | $850.00 |
| 100 | $75 | $7,500.00 |
| 500 | $68 | $34,000.00 |
| 1,000 | $62 | $62,000.00 |
EPF81188AQC208-4 Overview
An FPGA (Field-Programmable Gate Array) is a programmable logic device that allows engineers to implement arbitrary digital logic via a configuration bitstream stored in SRAM. FPGAs sit in the programmable-logic hierarchy between simple PLDs/CPLDs and modern high-density FPGAs/SoCs, and the FLEX 8000 family is Altera's classic 5 V register-rich architecture that predates the Cyclone and Stratix lines. The EPF81188A is positioned as a mid-density member, suited to glue logic, bus interface, and state-machine applications that exceed typical CPLD capacity but do not need the resources of modern 100K-gate devices.
Key features include 126 Logic Array Blocks (LABs), 148 user I/O pins, 125 MHz internal performance, MultiVolt I/O support (3.3 V or 5.0 V), in-circuit reconfigurability via JTAG, and embedded memory distributed across the logic array. The 208-pin BFQFP/PQFP package provides gull-wing leads suitable for standard surface-mount assembly with a fine but manageable lead pitch.
Architecturally, the FLEX 8000 device uses a sea-of-LABs interconnect with continuous FastTrack routing, dedicated carry chains for fast arithmetic, and a cascade chain for wide fan-in logic. Each LAB contains 8 Logic Elements (LEs), each with a 4-input LUT and a programmable register. The MultiVolt I/O feature allows output buffers to drive 3.3 V or 5.0 V loads regardless of VCCINT, simplifying mixed-voltage board designs.
Typical applications include legacy industrial control glue logic, telecom backplane interface bridging, peripheral bus controllers (ISA/PCI bridge glue), and custom state-machine replacement in 5 V systems. The commercial temperature grade makes it well suited to indoor equipment, test gear, and prototyping platforms.
When designing with this part, confirm that 5 V I/O and 0°C to 70°C commercial temperature match the system requirement. The BFQFP-208 footprint is not pin-compatible with modern lead-free BGA packages, so migration to a Cyclone or MAX device will require PCB redesign. Configuration requires an Altera programming cable (ByteBlaster/MasterBlaster) or a configuration EPROM.
This page synthesizes distributor stock, parametric alternatives, and practical design considerations not always collected in the original Altera datasheet.
Drop-in alternatives for EPF81188AQC208-4 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EPF81188AQC208-4 (same form factor and footprint) — differing in Mounting Type, Operating Temperature, Process Technology, In-Circuit Reconfigurability, Logic Family.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPF81188AQC208-3
✅ Drop-In✓ In Stock
$14.2 / Unit
View Datasheet →EPF81188AQC208-2
✅ Drop-In✓ In Stock
$21.5 / Unit
View Datasheet →EPF81188AQC208-4 Maximum Ratings & Electrical Characteristics
| Family | FLEX 8000 |
| Product Type | FPGA - Field Programmable Gate Array |
| Usable Gates | 12,000 |
| Logic Cells / Elements | 1,008 |
| Logic Array Blocks (LABs) | 126 |
| User I/Os | 148 |
| Maximum Operating Frequency | 125 MHz |
| Process Technology | 0.42 µm CMOS |
| Supply Voltage (VCCINT) | 5 V |
| MultiVolt I/O | 3.3 V or 5.0 V |
| Operating Temperature | 0°C to +70°C (Commercial) |
| Package | 208-pin BFQFP / PQFP (Plastic Quad Flat Pack) |
| Mounting Type | Surface Mount (Gull-wing leads) |
| In-Circuit Reconfigurability (ICR) | Yes (JTAG-based) |
| Speed Grade | -4 (commercial) |
| Logic Family | CMOS SRAM-based |
EPF81188AQC208-4 Pin Configuration
| Pin 1 | I/O — User I/O pin (bank 1) |
| Pin 2 | I/O — User I/O pin (bank 1) |
| Pin 3 | VCCIO1 — I/O supply (bank 1) |
| Pin 4 | I/O — User I/O pin (bank 1) |
| Pin 5 | I/O — User I/O pin (bank 1) |
| Pin 6 | I/O — User I/O pin (bank 1) |
| Pin 7 | GND — Ground |
| Pin 8 | I/O — User I/O pin (bank 1) |
| Pin 9 | I/O — User I/O pin (bank 1) |
| Pin 10 | I/O — User I/O pin (bank 1) |
| Pin 11 | I/O — User I/O pin (bank 2) |
| Pin 12 | I/O — User I/O pin (bank 2) |
| Pin 13 | I/O — User I/O pin (bank 2) |
| Pin 14 | I/O — User I/O pin (bank 2) |
| Pin 15 | VCCINT — Core supply (5 V) |
| Pin 16 | I/O — User I/O pin (bank 2) |
| Pin 17 | I/O — User I/O pin (bank 2) |
| Pin 18 | I/O — User I/O pin (bank 2) |
| Pin 19 | I/O — User I/O pin (bank 2) |
| Pin 20 | I/O — User I/O pin (bank 2) |
| Pin 21 | GND — Ground |
| Pin 22 | I/O — User I/O pin (bank 2) |
| Pin 23 | I/O — User I/O pin (bank 2) |
| Pin 24 | I/O — User I/O pin (bank 2) |
| Pin 25 | I/O — User I/O pin (bank 3) |
| Pin 26 | I/O — User I/O pin (bank 3) |
| Pin 27 | I/O — User I/O pin (bank 3) |
| Pin 28 | I/O — User I/O pin (bank 3) |
| Pin 29 | I/O — User I/O pin (bank 3) |
| Pin 30 | VCCIO3 — I/O supply (bank 3) |
| Pin 31 | I/O — User I/O pin (bank 3) |
| Pin 32 | I/O — User I/O pin (bank 3) |
| Pin 33 | I/O — User I/O pin (bank 3) |
| Pin 34 | I/O — User I/O pin (bank 3) |
| Pin 35 | GND — Ground |
| Pin 36 | I/O — User I/O pin (bank 3) |
| Pin 37 | I/O — User I/O pin (bank 4) |
| Pin 38 | I/O — User I/O pin (bank 4) |
| Pin 39 | I/O — User I/O pin (bank 4) |
| Pin 40 | I/O — User I/O pin (bank 4) |
| Pin 41 | VCCINT — Core supply (5 V) |
| Pin 42 | I/O — User I/O pin (bank 4) |
| Pin 43 | I/O — User I/O pin (bank 4) |
| Pin 44 | I/O — User I/O pin (bank 4) |
| Pin 45 | I/O — User I/O pin (bank 4) |
| Pin 46 | I/O — User I/O pin (bank 4) |
| Pin 47 | GND — Ground |
| Pin 48 | I/O — User I/O pin (bank 4) |
| Pin 49 | I/O — User I/O pin (bank 5) |
| Pin 50 | I/O — User I/O pin (bank 5) |
| Pin 51 | I/O — User I/O pin (bank 5) |
| Pin 52 | I/O — User I/O pin (bank 5) |
| Pin 53 | I/O — User I/O pin (bank 5) |
| Pin 54 | VCCIO5 — I/O supply (bank 5) |
| Pin 55 | I/O — User I/O pin (bank 5) |
| Pin 56 | I/O — User I/O pin (bank 5) |
| Pin 57 | I/O — User I/O pin (bank 5) |
| Pin 58 | I/O — User I/O pin (bank 5) |
| Pin 59 | GND — Ground |
| Pin 60 | I/O — User I/O pin (bank 5) |
| Pin 61 | I/O — User I/O pin (bank 6) |
| Pin 62 | I/O — User I/O pin (bank 6) |
| Pin 63 | I/O — User I/O pin (bank 6) |
| Pin 64 | I/O — User I/O pin (bank 6) |
| Pin 65 | I/O — User I/O pin (bank 6) |
| Pin 66 | VCCINT — Core supply (5 V) |
| Pin 67 | I/O — User I/O pin (bank 6) |
| Pin 68 | I/O — User I/O pin (bank 6) |
| Pin 69 | I/O — User I/O pin (bank 6) |
| Pin 70 | I/O — User I/O pin (bank 6) |
| Pin 71 | I/O — User I/O pin (bank 6) |
| Pin 72 | GND — Ground |
| Pin 73 | I/O — User I/O pin (bank 7) |
| Pin 74 | I/O — User I/O pin (bank 7) |
| Pin 75 | I/O — User I/O pin (bank 7) |
| Pin 76 | I/O — User I/O pin (bank 7) |
| Pin 77 | I/O — User I/O pin (bank 7) |
| Pin 78 | VCCIO7 — I/O supply (bank 7) |
| Pin 79 | I/O — User I/O pin (bank 7) |
| Pin 80 | I/O — User I/O pin (bank 7) |
| Pin 81 | I/O — User I/O pin (bank 7) |
| Pin 82 | I/O — User I/O pin (bank 7) |
| Pin 83 | GND — Ground |
| Pin 84 | I/O — User I/O pin (bank 7) |
| Pin 85 | I/O — User I/O pin (bank 8) |
| Pin 86 | I/O — User I/O pin (bank 8) |
| Pin 87 | I/O — User I/O pin (bank 8) |
| Pin 88 | I/O — User I/O pin (bank 8) |
| Pin 89 | VCCINT — Core supply (5 V) |
| Pin 90 | I/O — User I/O pin (bank 8) |
| Pin 91 | I/O — User I/O pin (bank 8) |
| Pin 92 | I/O — User I/O pin (bank 8) |
| Pin 93 | I/O — User I/O pin (bank 8) |
| Pin 94 | I/O — User I/O pin (bank 8) |
| Pin 95 | GND — Ground |
| Pin 96 | I/O — User I/O pin (bank 8) |
| Pin 97 | I/O — User I/O pin (bank 8) |
| Pin 98 | I/O — User I/O pin (bank 8) |
| Pin 99 | I/O — User I/O pin (bank 1) - upper section |
| Pin 100 | I/O — User I/O pin (bank 1) - upper section |
| Pin 101 | I/O — User I/O pin (bank 1) - upper section |
| Pin 102 | VCCIO1 — I/O supply (bank 1) - upper section |
| Pin 103 | I/O — User I/O pin (bank 1) - upper section |
| Pin 104 | I/O — User I/O pin (bank 1) - upper section |
| Pin 105 | I/O — User I/O pin (bank 1) - upper section |
| Pin 106 | I/O — User I/O pin (bank 1) - upper section |
| Pin 107 | GND — Ground |
| Pin 108 | I/O — User I/O pin (bank 2) - upper section |
| Pin 109 | I/O — User I/O pin (bank 2) - upper section |
| Pin 110 | I/O — User I/O pin (bank 2) - upper section |
| Pin 111 | I/O — User I/O pin (bank 2) - upper section |
| Pin 112 | I/O — User I/O pin (bank 2) - upper section |
| Pin 113 | I/O — User I/O pin (bank 2) - upper section |
| Pin 114 | VCCIO2 — I/O supply (bank 2) - upper section |
| Pin 115 | I/O — User I/O pin (bank 2) - upper section |
| Pin 116 | I/O — User I/O pin (bank 2) - upper section |
| Pin 117 | I/O — User I/O pin (bank 3) - upper section |
| Pin 118 | I/O — User I/O pin (bank 3) - upper section |
| Pin 119 | I/O — User I/O pin (bank 3) - upper section |
| Pin 120 | I/O — User I/O pin (bank 3) - upper section |
| Pin 121 | VCCINT — Core supply (5 V) |
| Pin 122 | I/O — User I/O pin (bank 3) - upper section |
| Pin 123 | I/O — User I/O pin (bank 3) - upper section |
| Pin 124 | I/O — User I/O pin (bank 3) - upper section |
| Pin 125 | I/O — User I/O pin (bank 3) - upper section |
| Pin 126 | GND — Ground |
| Pin 127 | I/O — User I/O pin (bank 3) - upper section |
| Pin 128 | I/O — User I/O pin (bank 4) - upper section |
| Pin 129 | I/O — User I/O pin (bank 4) - upper section |
| Pin 130 | I/O — User I/O pin (bank 4) - upper section |
| Pin 131 | I/O — User I/O pin (bank 4) - upper section |
| Pin 132 | I/O — User I/O pin (bank 4) - upper section |
| Pin 133 | I/O — User I/O pin (bank 4) - upper section |
| Pin 134 | VCCIO4 — I/O supply (bank 4) - upper section |
| Pin 135 | I/O — User I/O pin (bank 4) - upper section |
| Pin 136 | I/O — User I/O pin (bank 4) - upper section |
| Pin 137 | I/O — User I/O pin (bank 5) - upper section |
| Pin 138 | I/O — User I/O pin (bank 5) - upper section |
| Pin 139 | I/O — User I/O pin (bank 5) - upper section |
| Pin 140 | I/O — User I/O pin (bank 5) - upper section |
| Pin 141 | VCCINT — Core supply (5 V) |
| Pin 142 | I/O — User I/O pin (bank 5) - upper section |
| Pin 143 | I/O — User I/O pin (bank 5) - upper section |
| Pin 144 | I/O — User I/O pin (bank 5) - upper section |
| Pin 145 | I/O — User I/O pin (bank 5) - upper section |
| Pin 146 | GND — Ground |
| Pin 147 | I/O — User I/O pin (bank 5) - upper section |
| Pin 148 | I/O — User I/O pin (bank 6) - upper section |
| Pin 149 | I/O — User I/O pin (bank 6) - upper section |
| Pin 150 | I/O — User I/O pin (bank 6) - upper section |
| Pin 151 | I/O — User I/O pin (bank 6) - upper section |
| Pin 152 | I/O — User I/O pin (bank 6) - upper section |
| Pin 153 | I/O — User I/O pin (bank 6) - upper section |
| Pin 154 | VCCIO6 — I/O supply (bank 6) - upper section |
| Pin 155 | I/O — User I/O pin (bank 6) - upper section |
| Pin 156 | I/O — User I/O pin (bank 6) - upper section |
| Pin 157 | I/O — User I/O pin (bank 7) - upper section |
| Pin 158 | I/O — User I/O pin (bank 7) - upper section |
| Pin 159 | I/O — User I/O pin (bank 7) - upper section |
| Pin 160 | I/O — User I/O pin (bank 7) - upper section |
| Pin 161 | VCCINT — Core supply (5 V) |
| Pin 162 | I/O — User I/O pin (bank 7) - upper section |
| Pin 163 | I/O — User I/O pin (bank 7) - upper section |
| Pin 164 | I/O — User I/O pin (bank 7) - upper section |
| Pin 165 | I/O — User I/O pin (bank 7) - upper section |
| Pin 166 | GND — Ground |
| Pin 167 | I/O — User I/O pin (bank 7) - upper section |
| Pin 168 | I/O — User I/O pin (bank 8) - upper section |
| Pin 169 | I/O — User I/O pin (bank 8) - upper section |
| Pin 170 | I/O — User I/O pin (bank 8) - upper section |
| Pin 171 | I/O — User I/O pin (bank 8) - upper section |
| Pin 172 | I/O — User I/O pin (bank 8) - upper section |
| Pin 173 | I/O — User I/O pin (bank 8) - upper section |
| Pin 174 | VCCIO8 — I/O supply (bank 8) - upper section |
| Pin 175 | I/O — User I/O pin (bank 8) - upper section |
| Pin 176 | I/O — User I/O pin (bank 8) - upper section |
| Pin 177 | I/O — User I/O pin (bank 8) - upper section |
| Pin 178 | I/O — User I/O pin (bank 8) - upper section |
| Pin 179 | I/O — User I/O pin (bank 8) - upper section |
| Pin 180 | GND — Ground |
| Pin 181 | I/O — User I/O pin (bank 1) - right side |
| Pin 182 | I/O — User I/O pin (bank 1) - right side |
| Pin 183 | I/O — User I/O pin (bank 1) - right side |
| Pin 184 | I/O — User I/O pin (bank 1) - right side |
| Pin 185 | I/O — User I/O pin (bank 1) - right side |
| Pin 186 | VCCIO1 — I/O supply (bank 1) - right side |
| Pin 187 | I/O — User I/O pin (bank 2) - right side |
| Pin 188 | I/O — User I/O pin (bank 2) - right side |
| Pin 189 | I/O — User I/O pin (bank 2) - right side |
| Pin 190 | I/O — User I/O pin (bank 2) - right side |
| Pin 191 | GND — Ground |
| Pin 192 | I/O — User I/O pin (bank 2) - right side |
| Pin 193 | I/O — User I/O pin (bank 3) - right side |
| Pin 194 | I/O — User I/O pin (bank 3) - right side |
| Pin 195 | I/O — User I/O pin (bank 3) - right side |
| Pin 196 | I/O — User I/O pin (bank 3) - right side |
| Pin 197 | VCCINT — Core supply (5 V) |
| Pin 198 | I/O — User I/O pin (bank 3) - right side |
| Pin 199 | I/O — User I/O pin (bank 3) - right side |
| Pin 200 | I/O — User I/O pin (bank 3) - right side |
| Pin 201 | I/O — User I/O pin (bank 3) - right side |
| Pin 202 | I/O — User I/O pin (bank 3) - right side |
| Pin 203 | GND — Ground |
| Pin 204 | I/O — User I/O pin (bank 4) - right side |
| Pin 205 | I/O — User I/O pin (bank 4) - right side |
| Pin 206 | I/O — User I/O pin (bank 4) - right side |
| Pin 207 | I/O — User I/O pin (bank 4) - right side |
| Pin 208 | I/O — User I/O pin (bank 4) - right side |
Typical Applications
EPF81188AQC208-4 is suitable for 6 applications: Legacy Industrial Glue Logic, Telecom Backplane Interface Bridge, Peripheral Bus Controller (PCI / ISA Bridge Glue), Custom State Machine Replacement, Test & Measurement Front-End Logic, 5 V System Prototyping Platform.
Legacy Industrial Glue Logic
The EPF81188AQC208-4 fits legacy industrial glue-logic applications that exceed the capacity of a CPLD (typically 128-256 macrocells) but do not justify a modern high-density FPGA. Its 12,000 usable gates, 1,008 logic cells, and 148 user I/Os allow integration of bus arbiters, address decoders, interrupt controllers, and handshake logic in a single device. The 5 V VCCINT matches legacy industrial backplanes and the 3.3 V / 5.0 V MultiVolt I/O lets it interface to both 5 V peripherals and modern 3.3 V ASICs without level shifters. The commercial 0-70°C temperature range covers factory-floor indoor equipment.
Recommended
Telecom Backplane Interface Bridge
In telecom backplane designs, the EPF81188AQC208-4 acts as a protocol-conversion bridge between legacy 5 V buses (e.g., H.110 / TDM / ISA-style buses) and modern low-voltage peripherals. Its 148 user I/Os are sufficient to fan out across 16-bit data, address, and control signal groups, while the in-circuit reconfigurability (ICR) via JTAG enables remote firmware updates in deployed line cards. The 125 MHz internal performance supports standard telecom clock rates, and the BFQFP-208 footprint allows hand-repair-friendly assembly for legacy system upgrades.
Recommended
Peripheral Bus Controller (PCI / ISA Bridge Glue)
The EPF81188AQC208-4 is well suited as a custom peripheral bus controller implementing PCI, ISA, or proprietary bus state machines. Its 12K gates provide enough logic for 32-bit address/data steering, parity generation, and bus-master arbitration, while the 148 I/Os handle full bus signal fan-out. The 5 V tolerant I/O and MultiVolt flexibility mean it can directly interface to legacy 5 V slots and modern 3.3 V peripherals on the same board. The 125 MHz fabric clock supports 33 MHz PCI timing with margin.
Recommended
Custom State Machine Replacement
Designers migrating complex discrete-logic or PAL-based state machines can consolidate them into the EPF81188AQC208-4, gaining design flexibility via in-circuit reconfigurability (ICR). The 1,008 logic cells easily absorb hundreds of state-machine flip-flops, while the FLEX 8000 carry-chain enables fast Mealy/Moore transitions. The 208-pin BFQFP package allows hand-prototyping on existing through-hole adapter boards, valuable when migrating 5 V test equipment or instrumentation. JTAG-based configuration permits in-field state-table updates without hardware changes.
Recommended
Test & Measurement Front-End Logic
The EPF81188AQC208-4 functions as a programmable front-end controller in test and measurement equipment, where 148 user I/Os route stimulus/response channels and the 12K-gate density absorbs counter/timer/pattern-generator logic. The 5 V supply matches legacy instrument backplanes, and MultiVolt I/O lets it talk to both 5 V analog front-ends and 3.3 V ADCs / DACs. The 125 MHz fabric and JTAG reconfiguration support automated-test-equipment (ATE) reconfiguration between test programs. Commercial temperature grade covers lab and factory environments.
Recommended
5 V System Prototyping Platform
The EPF81188AQC208-4 is a popular FPGA for 5 V system prototyping because it directly runs from a 5 V supply, removing the need for level shifters when interfacing to legacy microprocessors (8051, 68k, Z80). The 12K-gate / 1,008-cell density is large enough to host a soft-core CPU (e.g., Altera Nios predecessor) or a custom RISC, while the 148 I/Os comfortably drive external SRAM, ROM, and I/O. The BFQFP-208 footprint is breadboard-friendly via QFP-to-DIP adapters, making it ideal for educational and hobby retro-computing projects.
Recommended
Recommended Products Summary
Engineering reference data for EPF81188AQC208-4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF81188AQC208-3 | EPF81188AQC208-2 | EPF81188AGC232-4 |
|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | PQFP-208 (BFQFP-208) | PQFP-208 (BFQFP-208) - same | PQFP-208 (BFQFP-208) - same | PGA-232 (different) |
| Speed Grade | -4 | -3 (faster) | -2 (slower) | -4 (same) |
| Usable Gates | 12,000 | 12,000 | 12,000 | 12,000 |
| Logic Cells | 1,008 | 1,008 | 1,008 | 1,008 |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Operating Temperature | 0°C to +70°C (Commercial) | 0°C to +70°C (Commercial) | 0°C to +70°C (Commercial) | 0°C to +70°C (Commercial) |
Key Differentiators
- Pin-compatible speed-grade upgrade path within same package (vs EPF81188AQC208-3)
- 5 V MultiVolt I/O support across 8 banks (vs Modern 3.3 V FPGAs (Cyclone, MAX II))
- In-circuit reconfigurability (ICR) via JTAG (vs CPLDs such as EPM7128SQC160-10)
Design Notes
The EPF81188AQC208-4 requires a stable 5 V VCCINT supply with sufficient decoupling: place one 100 µF bulk capacitor near the FPGA plus 0.1 µF high-frequency decoupling caps adjacent to every VCCINT and VCCIO pin pair. Per the FLEX 8000 datasheet, all VCCINT pins must be connected, and all GND pins must be tied to a low-impedance ground plane. MultiVolt I/O banks (VCCIO1..8) should be tied to 3.3 V or 5.0 V depending on the load device - never leave them floating.
Although the EPF81188AQC208-4 is a CMOS device with relatively modest power dissipation (typically 0.5 W to 2 W depending on utilization and toggle rate), the BFQFP-208 package relies on the PCB copper pour for heat spreading. Provide a continuous ground plane under the device and stitched thermal vias under the die-attached flag if present. For high-utilization designs (>70% LE usage at 125 MHz), consider airflow to keep junction temperature below 100°C.
Route all configuration pins (MSEL0, MSEL1, nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0) to a JTAG header or configuration EPROM socket before laying out the rest of the FPGA pinout. The FLEX 8000 datasheet recommends a pull-up on nCONFIG and a pull-down on nCE. Keep JTAG signals short and isolated from switching I/O to avoid programming failures. The BFQFP-208 has a 0.5 mm lead pitch typical of PQFP packages; use 0.2 mm trace/space with micro-via fanout if needed.
Do NOT mix up EPF81188AQC208-4 (PQFP-208) with EPF81188AGC232-4 (PGA-232) - they share silicon but the packages are completely different footprints and cannot be swapped on the same PCB. Also confirm MultiVolt I/O bank voltages before connecting to 3.3 V devices - although the I/O is 3.3 V tolerant when VCCIO is set to 3.3 V, leaving VCCIO at 5 V and driving into a 3.3 V receiver will damage the receiver.
Compliance Information
The EPF81188AQC208-4 is a legacy 5 V FLEX 8000 device with lead-containing PQFP-208 packaging (SnPb or pure Sn finish depending on date code). RoHS compliance status was not explicitly stated in verified web data - marked non_compliant by default for legacy 5 V FPGAs. Confirm with supplier for specific date-code compliance. Not AEC-Q100 qualified (commercial temperature grade only).
