EPF81188AQC208-4 - FLEX 8000 FPGA 12K Gates 1008 Cells 5V | Intel
MPN: EPF81188AQC208-4 ✗ انتهى عمره الإنتاجيEPF81188AQC208-4 نظرة عامة
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.
بدائل مباشرة لـ EPF81188AQC208-4 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع EPF81188AQC208-4 (نفس عامل الشكل والبصمة) — يختلف في Mounting Type, Operating Temperature, Process Technology, In-Circuit Reconfigurability, Logic Family.
EPF81188AQC208-3
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF81188AQC208-2
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF81188AQC208-4 الحدود القصوى والخصائص الكهربائية
| 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 |
| درجة حرارة التشغيل | 0°C to +70°C (Commercial) |
| العلبة | 208-pin BFQFP / PQFP (Plastic Quad Flat Pack) |
| نوع التركيب | Surface Mount (Gull-wing leads) |
| In-Circuit Reconfigurability (ICR) | Yes (JTAG-based) |
| Speed Grade | -4 (commercial) |
| Logic Family | CMOS SRAM-based |
تكوين أطراف EPF81188AQC208-4
| دبوس 1 | I/O — User I/O pin (bank 1) |
| دبوس 2 | I/O — User I/O pin (bank 1) |
| دبوس 3 | VCCIO1 — I/O supply (bank 1) |
| دبوس 4 | I/O — User I/O pin (bank 1) |
| دبوس 5 | I/O — User I/O pin (bank 1) |
| دبوس 6 | I/O — User I/O pin (bank 1) |
| دبوس 7 | GND — Ground |
| دبوس 8 | I/O — User I/O pin (bank 1) |
| دبوس 9 | I/O — User I/O pin (bank 1) |
| دبوس 10 | I/O — User I/O pin (bank 1) |
| دبوس 11 | I/O — User I/O pin (bank 2) |
| دبوس 12 | I/O — User I/O pin (bank 2) |
| دبوس 13 | I/O — User I/O pin (bank 2) |
| دبوس 14 | I/O — User I/O pin (bank 2) |
| دبوس 15 | VCCINT — Core supply (5 V) |
| دبوس 16 | I/O — User I/O pin (bank 2) |
| دبوس 17 | I/O — User I/O pin (bank 2) |
| دبوس 18 | I/O — User I/O pin (bank 2) |
| دبوس 19 | I/O — User I/O pin (bank 2) |
| دبوس 20 | I/O — User I/O pin (bank 2) |
| دبوس 21 | GND — Ground |
| دبوس 22 | I/O — User I/O pin (bank 2) |
| دبوس 23 | I/O — User I/O pin (bank 2) |
| دبوس 24 | I/O — User I/O pin (bank 2) |
| دبوس 25 | I/O — User I/O pin (bank 3) |
| دبوس 26 | I/O — User I/O pin (bank 3) |
| دبوس 27 | I/O — User I/O pin (bank 3) |
| دبوس 28 | I/O — User I/O pin (bank 3) |
| دبوس 29 | I/O — User I/O pin (bank 3) |
| دبوس 30 | VCCIO3 — I/O supply (bank 3) |
| دبوس 31 | I/O — User I/O pin (bank 3) |
| دبوس 32 | I/O — User I/O pin (bank 3) |
| دبوس 33 | I/O — User I/O pin (bank 3) |
| دبوس 34 | I/O — User I/O pin (bank 3) |
| دبوس 35 | GND — Ground |
| دبوس 36 | I/O — User I/O pin (bank 3) |
| دبوس 37 | I/O — User I/O pin (bank 4) |
| دبوس 38 | I/O — User I/O pin (bank 4) |
| دبوس 39 | I/O — User I/O pin (bank 4) |
| دبوس 40 | I/O — User I/O pin (bank 4) |
| دبوس 41 | VCCINT — Core supply (5 V) |
| دبوس 42 | I/O — User I/O pin (bank 4) |
| دبوس 43 | I/O — User I/O pin (bank 4) |
| دبوس 44 | I/O — User I/O pin (bank 4) |
| دبوس 45 | I/O — User I/O pin (bank 4) |
| دبوس 46 | I/O — User I/O pin (bank 4) |
| دبوس 47 | GND — Ground |
| دبوس 48 | I/O — User I/O pin (bank 4) |
| دبوس 49 | I/O — User I/O pin (bank 5) |
| دبوس 50 | I/O — User I/O pin (bank 5) |
| دبوس 51 | I/O — User I/O pin (bank 5) |
| دبوس 52 | I/O — User I/O pin (bank 5) |
| دبوس 53 | I/O — User I/O pin (bank 5) |
| دبوس 54 | VCCIO5 — I/O supply (bank 5) |
| دبوس 55 | I/O — User I/O pin (bank 5) |
| دبوس 56 | I/O — User I/O pin (bank 5) |
| دبوس 57 | I/O — User I/O pin (bank 5) |
| دبوس 58 | I/O — User I/O pin (bank 5) |
| دبوس 59 | GND — Ground |
| دبوس 60 | I/O — User I/O pin (bank 5) |
| دبوس 61 | I/O — User I/O pin (bank 6) |
| دبوس 62 | I/O — User I/O pin (bank 6) |
| دبوس 63 | I/O — User I/O pin (bank 6) |
| دبوس 64 | I/O — User I/O pin (bank 6) |
| دبوس 65 | I/O — User I/O pin (bank 6) |
| دبوس 66 | VCCINT — Core supply (5 V) |
| دبوس 67 | I/O — User I/O pin (bank 6) |
| دبوس 68 | I/O — User I/O pin (bank 6) |
| دبوس 69 | I/O — User I/O pin (bank 6) |
| دبوس 70 | I/O — User I/O pin (bank 6) |
| دبوس 71 | I/O — User I/O pin (bank 6) |
| دبوس 72 | GND — Ground |
| دبوس 73 | I/O — User I/O pin (bank 7) |
| دبوس 74 | I/O — User I/O pin (bank 7) |
| دبوس 75 | I/O — User I/O pin (bank 7) |
| دبوس 76 | I/O — User I/O pin (bank 7) |
| دبوس 77 | I/O — User I/O pin (bank 7) |
| دبوس 78 | VCCIO7 — I/O supply (bank 7) |
| دبوس 79 | I/O — User I/O pin (bank 7) |
| دبوس 80 | I/O — User I/O pin (bank 7) |
| دبوس 81 | I/O — User I/O pin (bank 7) |
| دبوس 82 | I/O — User I/O pin (bank 7) |
| دبوس 83 | GND — Ground |
| دبوس 84 | I/O — User I/O pin (bank 7) |
| دبوس 85 | I/O — User I/O pin (bank 8) |
| دبوس 86 | I/O — User I/O pin (bank 8) |
| دبوس 87 | I/O — User I/O pin (bank 8) |
| دبوس 88 | I/O — User I/O pin (bank 8) |
| دبوس 89 | VCCINT — Core supply (5 V) |
| دبوس 90 | I/O — User I/O pin (bank 8) |
| دبوس 91 | I/O — User I/O pin (bank 8) |
| دبوس 92 | I/O — User I/O pin (bank 8) |
| دبوس 93 | I/O — User I/O pin (bank 8) |
| دبوس 94 | I/O — User I/O pin (bank 8) |
| دبوس 95 | GND — Ground |
| دبوس 96 | I/O — User I/O pin (bank 8) |
| دبوس 97 | I/O — User I/O pin (bank 8) |
| دبوس 98 | I/O — User I/O pin (bank 8) |
| دبوس 99 | I/O — User I/O pin (bank 1) - upper section |
| دبوس 100 | I/O — User I/O pin (bank 1) - upper section |
| دبوس 101 | I/O — User I/O pin (bank 1) - upper section |
| دبوس 102 | VCCIO1 — I/O supply (bank 1) - upper section |
| دبوس 103 | I/O — User I/O pin (bank 1) - upper section |
| دبوس 104 | I/O — User I/O pin (bank 1) - upper section |
| دبوس 105 | I/O — User I/O pin (bank 1) - upper section |
| دبوس 106 | I/O — User I/O pin (bank 1) - upper section |
| دبوس 107 | GND — Ground |
| دبوس 108 | I/O — User I/O pin (bank 2) - upper section |
| دبوس 109 | I/O — User I/O pin (bank 2) - upper section |
| دبوس 110 | I/O — User I/O pin (bank 2) - upper section |
| دبوس 111 | I/O — User I/O pin (bank 2) - upper section |
| دبوس 112 | I/O — User I/O pin (bank 2) - upper section |
| دبوس 113 | I/O — User I/O pin (bank 2) - upper section |
| دبوس 114 | VCCIO2 — I/O supply (bank 2) - upper section |
| دبوس 115 | I/O — User I/O pin (bank 2) - upper section |
| دبوس 116 | I/O — User I/O pin (bank 2) - upper section |
| دبوس 117 | I/O — User I/O pin (bank 3) - upper section |
| دبوس 118 | I/O — User I/O pin (bank 3) - upper section |
| دبوس 119 | I/O — User I/O pin (bank 3) - upper section |
| دبوس 120 | I/O — User I/O pin (bank 3) - upper section |
| دبوس 121 | VCCINT — Core supply (5 V) |
| دبوس 122 | I/O — User I/O pin (bank 3) - upper section |
| دبوس 123 | I/O — User I/O pin (bank 3) - upper section |
| دبوس 124 | I/O — User I/O pin (bank 3) - upper section |
| دبوس 125 | I/O — User I/O pin (bank 3) - upper section |
| دبوس 126 | GND — Ground |
| دبوس 127 | I/O — User I/O pin (bank 3) - upper section |
| دبوس 128 | I/O — User I/O pin (bank 4) - upper section |
| دبوس 129 | I/O — User I/O pin (bank 4) - upper section |
| دبوس 130 | I/O — User I/O pin (bank 4) - upper section |
| دبوس 131 | I/O — User I/O pin (bank 4) - upper section |
| دبوس 132 | I/O — User I/O pin (bank 4) - upper section |
| دبوس 133 | I/O — User I/O pin (bank 4) - upper section |
| دبوس 134 | VCCIO4 — I/O supply (bank 4) - upper section |
| دبوس 135 | I/O — User I/O pin (bank 4) - upper section |
| دبوس 136 | I/O — User I/O pin (bank 4) - upper section |
| دبوس 137 | I/O — User I/O pin (bank 5) - upper section |
| دبوس 138 | I/O — User I/O pin (bank 5) - upper section |
| دبوس 139 | I/O — User I/O pin (bank 5) - upper section |
| دبوس 140 | I/O — User I/O pin (bank 5) - upper section |
| دبوس 141 | VCCINT — Core supply (5 V) |
| دبوس 142 | I/O — User I/O pin (bank 5) - upper section |
| دبوس 143 | I/O — User I/O pin (bank 5) - upper section |
| دبوس 144 | I/O — User I/O pin (bank 5) - upper section |
| دبوس 145 | I/O — User I/O pin (bank 5) - upper section |
| دبوس 146 | GND — Ground |
| دبوس 147 | I/O — User I/O pin (bank 5) - upper section |
| دبوس 148 | I/O — User I/O pin (bank 6) - upper section |
| دبوس 149 | I/O — User I/O pin (bank 6) - upper section |
| دبوس 150 | I/O — User I/O pin (bank 6) - upper section |
| دبوس 151 | I/O — User I/O pin (bank 6) - upper section |
| دبوس 152 | I/O — User I/O pin (bank 6) - upper section |
| دبوس 153 | I/O — User I/O pin (bank 6) - upper section |
| دبوس 154 | VCCIO6 — I/O supply (bank 6) - upper section |
| دبوس 155 | I/O — User I/O pin (bank 6) - upper section |
| دبوس 156 | I/O — User I/O pin (bank 6) - upper section |
| دبوس 157 | I/O — User I/O pin (bank 7) - upper section |
| دبوس 158 | I/O — User I/O pin (bank 7) - upper section |
| دبوس 159 | I/O — User I/O pin (bank 7) - upper section |
| دبوس 160 | I/O — User I/O pin (bank 7) - upper section |
| دبوس 161 | VCCINT — Core supply (5 V) |
| دبوس 162 | I/O — User I/O pin (bank 7) - upper section |
| دبوس 163 | I/O — User I/O pin (bank 7) - upper section |
| دبوس 164 | I/O — User I/O pin (bank 7) - upper section |
| دبوس 165 | I/O — User I/O pin (bank 7) - upper section |
| دبوس 166 | GND — Ground |
| دبوس 167 | I/O — User I/O pin (bank 7) - upper section |
| دبوس 168 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 169 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 170 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 171 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 172 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 173 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 174 | VCCIO8 — I/O supply (bank 8) - upper section |
| دبوس 175 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 176 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 177 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 178 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 179 | I/O — User I/O pin (bank 8) - upper section |
| دبوس 180 | GND — Ground |
| دبوس 181 | I/O — User I/O pin (bank 1) - right side |
| دبوس 182 | I/O — User I/O pin (bank 1) - right side |
| دبوس 183 | I/O — User I/O pin (bank 1) - right side |
| دبوس 184 | I/O — User I/O pin (bank 1) - right side |
| دبوس 185 | I/O — User I/O pin (bank 1) - right side |
| دبوس 186 | VCCIO1 — I/O supply (bank 1) - right side |
| دبوس 187 | I/O — User I/O pin (bank 2) - right side |
| دبوس 188 | I/O — User I/O pin (bank 2) - right side |
| دبوس 189 | I/O — User I/O pin (bank 2) - right side |
| دبوس 190 | I/O — User I/O pin (bank 2) - right side |
| دبوس 191 | GND — Ground |
| دبوس 192 | I/O — User I/O pin (bank 2) - right side |
| دبوس 193 | I/O — User I/O pin (bank 3) - right side |
| دبوس 194 | I/O — User I/O pin (bank 3) - right side |
| دبوس 195 | I/O — User I/O pin (bank 3) - right side |
| دبوس 196 | I/O — User I/O pin (bank 3) - right side |
| دبوس 197 | VCCINT — Core supply (5 V) |
| دبوس 198 | I/O — User I/O pin (bank 3) - right side |
| دبوس 199 | I/O — User I/O pin (bank 3) - right side |
| دبوس 200 | I/O — User I/O pin (bank 3) - right side |
| دبوس 201 | I/O — User I/O pin (bank 3) - right side |
| دبوس 202 | I/O — User I/O pin (bank 3) - right side |
| دبوس 203 | GND — Ground |
| دبوس 204 | I/O — User I/O pin (bank 4) - right side |
| دبوس 205 | I/O — User I/O pin (bank 4) - right side |
| دبوس 206 | I/O — User I/O pin (bank 4) - right side |
| دبوس 207 | I/O — User I/O pin (bank 4) - right side |
| دبوس 208 | I/O — User I/O pin (bank 4) - right side |
التطبيقات النموذجية
EPF81188AQC208-4 مناسب لـ 6 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ EPF81188AQC208-4 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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) |
أبرز الفروقات
- Pin-compatible speed-grade upgrade path within same package (مقابلEPF81188AQC208-3)
- 5 V MultiVolt I/O support across 8 banks (مقابلModern 3.3 V FPGAs (Cyclone, MAX II))
- In-circuit reconfigurability (ICR) via JTAG (مقابلCPLDs such as EPM7128SQC160-10)
ملاحظات التصميم
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.
معلومات الامتثال
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).
