EPF81188ARC240-4AA - FLEX 8000 FPGA 184 I/O 240-RQFP | Intel
MPN: EPF81188ARC240-4AA ✗ انتهى عمره الإنتاجيEPF81188ARC240-4AA نظرة عامة
An FPGA (Field-Programmable Gate Array) is a type of programmable logic device that combines the integration density of a gate array with the design flexibility of in-system programmability. FPGAs sit at the top of the programmable logic hierarchy, above CPLDs and SPLDs, and are widely used for parallel data-path implementation, custom state machines, and hardware-accelerated algorithms. The FLEX 8000 family in particular uses a fine-grained Look-Up-Table (LUT) based architecture with continuous FastTrack interconnect, optimized for high I/O count and predictable timing.
Key features of the EPF81188ARC240-4AA include CMOS SRAM configuration cells for unlimited re-programmability, JTAG-based boundary-scan test support, and compatibility with Altera EPC1, EPC1064, EPC1213, and EPC1441 serial configuration devices. The device supports both serial and parallel configuration modes via a dedicated configuration controller, allowing bitstreams to be loaded from EPROM, system memory, or a microprocessor. Internal configuration clocking handles the entire configuration sequence automatically at power-up.
Architecturally, the EPF81188ARC240-4AA is built around Lab/Logic Array Blocks (LABs) interconnected by the FastTrack row/column routing network, providing predictable delay characteristics for synchronous designs. Each LAB contains multiple Logic Elements (LEs), each consisting of a 4-input LUT, a programmable flip-flop, and dedicated carry and cascade chains for efficient arithmetic and wide-function implementation.
Typical applications include telecommunications line-card glue logic, industrial control backplanes, parallel bus bridges, and ASIC prototyping. The 240-RQFP package is preferred for designs that need high I/O count without resorting to fine-pitch BGA assembly, allowing assembly on cost-effective 2-layer through-hole-compatible boards when paired with adapter footprints.
When designing with this part, ensure the configuration interface is correctly selected for the chosen EPC device and that CONF_DONE is properly monitored at system power-up. Be aware that the EPF81188ARC240-4AA has reached end-of-life status from the original manufacturer and is primarily supported via the secondary/aftermarket channel; engineers should plan for long-term component availability risk.
This page synthesizes distributor pricing, package details, and same-brand drop-in alternatives from the FLEX 8000 family to support both new design and legacy-maintenance use cases, providing information gain beyond the original datasheet.
بدائل مباشرة لـ EPF81188ARC240-4AA — 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 EPF81188ARC240-4AA (نفس عامل الشكل والبصمة) — يختلف في Package, Speed Grade, Process Technology, Operating Temperature, Configuration Method.
EPF81188ARC240-4
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF81188ARC240-3
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF81188ARC240-2
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF81188AQC240-4
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF81188AQC240-3
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF81188AQC240-2
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF81188ARC240-4AA الحدود القصوى والخصائص الكهربائية
| Family | FLEX 8000 |
| Device Type | FPGA (SRAM-based) |
| Logic Elements | 1,008 |
| User I/O Pins | 184 |
| العلبة | 240-pin RQFP (Plastic Quad Flat Pack) |
| درجة حرارة التشغيل | -40 C to +85 C (industrial) |
| Supply Voltage (Vcc) | 5.0 V |
| Configuration Method | SRAM, serial or parallel |
| Compatible Configuration Devices | EPC1, EPC1064, EPC1213, EPC1441 |
| Process Technology | CMOS SRAM |
| نوع التركيب | Surface Mount |
| JTAG Support | Yes (boundary scan) |
| Logic Architecture | 4-input LUT + programmable flip-flop |
| Interconnect | FastTrack continuous routing |
تكوين أطراف EPF81188ARC240-4AA
| دبوس 1 | I/O — User I/O pin (bank-dependent) |
| دبوس 2 | I/O — User I/O pin |
| دبوس 3 | I/O — User I/O pin |
| دبوس 4 | I/O — User I/O pin |
| دبوس 5 | VCC — Core supply voltage (5.0 V) |
| دبوس 6 | I/O — User I/O pin |
| دبوس 7 | I/O — User I/O pin |
| دبوس 8 | I/O — User I/O pin |
| دبوس 9 | I/O — User I/O pin |
| دبوس 10 | I/O — User I/O pin |
| دبوس 11 | GND — Ground |
| دبوس 12 | I/O — User I/O pin |
| دبوس 13 | I/O — User I/O pin |
| دبوس 14 | I/O — User I/O pin |
| دبوس 15 | I/O — User I/O pin |
| دبوس 16 | I/O — User I/O pin |
| دبوس 17 | I/O — User I/O pin |
| دبوس 18 | VCC — Core supply voltage (5.0 V) |
| دبوس 19 | I/O — User I/O pin |
| دبوس 20 | I/O — User I/O pin |
| دبوس 21 | I/O — User I/O pin |
| دبوس 22 | I/O — User I/O pin |
| دبوس 23 | I/O — User I/O pin |
| دبوس 24 | I/O — User I/O pin |
| دبوس 25 | GND — Ground |
| دبوس 26 | I/O — User I/O pin |
| دبوس 27 | I/O — User I/O pin |
| دبوس 28 | I/O — User I/O pin |
| دبوس 29 | I/O — User I/O pin |
| دبوس 30 | I/O — User I/O pin |
| دبوس 31 | I/O — User I/O pin |
| دبوس 32 | VCC — Core supply voltage (5.0 V) |
| دبوس 33 | I/O — User I/O pin |
| دبوس 34 | I/O — User I/O pin |
| دبوس 35 | I/O — User I/O pin |
| دبوس 36 | I/O — User I/O pin |
| دبوس 37 | I/O — User I/O pin |
| دبوس 38 | I/O — User I/O pin |
| دبوس 39 | GND — Ground |
| دبوس 40 | I/O — User I/O pin |
| دبوس 41 | I/O — User I/O pin |
| دبوس 42 | I/O — User I/O pin |
| دبوس 43 | I/O — User I/O pin |
| دبوس 44 | I/O — User I/O pin |
| دبوس 45 | I/O — User I/O pin |
| دبوس 46 | VCC — Core supply voltage (5.0 V) |
| دبوس 47 | I/O — User I/O pin |
| دبوس 48 | I/O — User I/O pin |
| دبوس 49 | I/O — User I/O pin |
| دبوس 50 | I/O — User I/O pin |
| دبوس 51 | I/O — User I/O pin |
| دبوس 52 | I/O — User I/O pin |
| دبوس 53 | GND — Ground |
| دبوس 54 | I/O — User I/O pin |
| دبوس 55 | I/O — User I/O pin |
| دبوس 56 | I/O — User I/O pin |
| دبوس 57 | I/O — User I/O pin |
| دبوس 58 | I/O — User I/O pin |
| دبوس 59 | I/O — User I/O pin |
| دبوس 60 | VCC — Core supply voltage (5.0 V) |
| دبوس 61 | I/O — User I/O pin |
| دبوس 62 | I/O — User I/O pin |
| دبوس 63 | I/O — User I/O pin |
| دبوس 64 | I/O — User I/O pin |
| دبوس 65 | I/O — User I/O pin |
| دبوس 66 | I/O — User I/O pin |
| دبوس 67 | GND — Ground |
| دبوس 68 | I/O — User I/O pin |
| دبوس 69 | I/O — User I/O pin |
| دبوس 70 | I/O — User I/O pin |
| دبوس 71 | I/O — User I/O pin |
| دبوس 72 | I/O — User I/O pin |
| دبوس 73 | I/O — User I/O pin |
| دبوس 74 | VCC — Core supply voltage (5.0 V) |
| دبوس 75 | I/O — User I/O pin |
| دبوس 76 | I/O — User I/O pin |
| دبوس 77 | I/O — User I/O pin |
| دبوس 78 | I/O — User I/O pin |
| دبوس 79 | I/O — User I/O pin |
| دبوس 80 | I/O — User I/O pin |
| دبوس 81 | GND — Ground |
| دبوس 82 | I/O — User I/O pin |
| دبوس 83 | I/O — User I/O pin |
| دبوس 84 | I/O — User I/O pin |
| دبوس 85 | I/O — User I/O pin |
| دبوس 86 | I/O — User I/O pin |
| دبوس 87 | I/O — User I/O pin |
| دبوس 88 | VCC — Core supply voltage (5.0 V) |
| دبوس 89 | I/O — User I/O pin |
| دبوس 90 | I/O — User I/O pin |
| دبوس 91 | I/O — User I/O pin |
| دبوس 92 | I/O — User I/O pin |
| دبوس 93 | I/O — User I/O pin |
| دبوس 94 | I/O — User I/O pin |
| دبوس 95 | GND — Ground |
| دبوس 96 | I/O — User I/O pin |
| دبوس 97 | I/O — User I/O pin |
| دبوس 98 | I/O — User I/O pin |
| دبوس 99 | I/O — User I/O pin |
| دبوس 100 | I/O — User I/O pin |
| دبوس 101 | I/O — User I/O pin |
| دبوس 102 | VCC — Core supply voltage (5.0 V) |
| دبوس 103 | I/O — User I/O pin |
| دبوس 104 | I/O — User I/O pin |
| دبوس 105 | I/O — User I/O pin |
| دبوس 106 | I/O — User I/O pin |
| دبوس 107 | I/O — User I/O pin |
| دبوس 108 | I/O — User I/O pin |
| دبوس 109 | GND — Ground |
| دبوس 110 | I/O — User I/O pin |
| دبوس 111 | I/O — User I/O pin |
| دبوس 112 | I/O — User I/O pin |
| دبوس 113 | I/O — User I/O pin |
| دبوس 114 | I/O — User I/O pin |
| دبوس 115 | I/O — User I/O pin |
| دبوس 116 | VCC — Core supply voltage (5.0 V) |
| دبوس 117 | I/O — User I/O pin |
| دبوس 118 | I/O — User I/O pin |
| دبوس 119 | I/O — User I/O pin |
| دبوس 120 | I/O — User I/O pin |
| دبوس 121 | I/O — User I/O pin |
| دبوس 122 | I/O — User I/O pin |
| دبوس 123 | GND — Ground |
| دبوس 124 | I/O — User I/O pin |
| دبوس 125 | I/O — User I/O pin |
| دبوس 126 | I/O — User I/O pin |
| دبوس 127 | I/O — User I/O pin |
| دبوس 128 | I/O — User I/O pin |
| دبوس 129 | I/O — User I/O pin |
| دبوس 130 | VCC — Core supply voltage (5.0 V) |
| دبوس 131 | I/O — User I/O pin |
| دبوس 132 | I/O — User I/O pin |
| دبوس 133 | I/O — User I/O pin |
| دبوس 134 | I/O — User I/O pin |
| دبوس 135 | I/O — User I/O pin |
| دبوس 136 | I/O — User I/O pin |
| دبوس 137 | GND — Ground |
| دبوس 138 | I/O — User I/O pin |
| دبوس 139 | I/O — User I/O pin |
| دبوس 140 | I/O — User I/O pin |
| دبوس 141 | I/O — User I/O pin |
| دبوس 142 | I/O — User I/O pin |
| دبوس 143 | I/O — User I/O pin |
| دبوس 144 | VCC — Core supply voltage (5.0 V) |
| دبوس 145 | I/O — User I/O pin |
| دبوس 146 | I/O — User I/O pin |
| دبوس 147 | I/O — User I/O pin |
| دبوس 148 | I/O — User I/O pin |
| دبوس 149 | I/O — User I/O pin |
| دبوس 150 | I/O — User I/O pin |
| دبوس 151 | GND — Ground |
| دبوس 152 | I/O — User I/O pin |
| دبوس 153 | I/O — User I/O pin |
| دبوس 154 | I/O — User I/O pin |
| دبوس 155 | I/O — User I/O pin |
| دبوس 156 | I/O — User I/O pin |
| دبوس 157 | I/O — User I/O pin |
| دبوس 158 | VCC — Core supply voltage (5.0 V) |
| دبوس 159 | I/O — User I/O pin |
| دبوس 160 | I/O — User I/O pin |
| دبوس 161 | I/O — User I/O pin |
| دبوس 162 | I/O — User I/O pin |
| دبوس 163 | I/O — User I/O pin |
| دبوس 164 | I/O — User I/O pin |
| دبوس 165 | GND — Ground |
| دبوس 166 | I/O — User I/O pin |
| دبوس 167 | I/O — User I/O pin |
| دبوس 168 | I/O — User I/O pin |
| دبوس 169 | I/O — User I/O pin |
| دبوس 170 | I/O — User I/O pin |
| دبوس 171 | I/O — User I/O pin |
| دبوس 172 | VCC — Core supply voltage (5.0 V) |
| دبوس 173 | I/O — User I/O pin |
| دبوس 174 | I/O — User I/O pin |
| دبوس 175 | I/O — User I/O pin |
| دبوس 176 | I/O — User I/O pin |
| دبوس 177 | I/O — User I/O pin |
| دبوس 178 | I/O — User I/O pin |
| دبوس 179 | GND — Ground |
| دبوس 180 | I/O — User I/O pin |
| دبوس 181 | I/O — User I/O pin |
| دبوس 182 | I/O — User I/O pin |
| دبوس 183 | I/O — User I/O pin |
| دبوس 184 | I/O — User I/O pin |
| دبوس 185 | I/O — User I/O pin |
| دبوس 186 | VCC — Core supply voltage (5.0 V) |
| دبوس 187 | I/O — User I/O pin |
| دبوس 188 | I/O — User I/O pin |
| دبوس 189 | I/O — User I/O pin |
| دبوس 190 | I/O — User I/O pin |
| دبوس 191 | I/O — User I/O pin |
| دبوس 192 | I/O — User I/O pin |
| دبوس 193 | GND — Ground |
| دبوس 194 | I/O — User I/O pin |
| دبوس 195 | I/O — User I/O pin |
| دبوس 196 | I/O — User I/O pin |
| دبوس 197 | I/O — User I/O pin |
| دبوس 198 | I/O — User I/O pin |
| دبوس 199 | I/O — User I/O pin |
| دبوس 200 | VCC — Core supply voltage (5.0 V) |
| دبوس 201 | I/O — User I/O pin |
| دبوس 202 | I/O — User I/O pin |
| دبوس 203 | I/O — User I/O pin |
| دبوس 204 | I/O — User I/O pin |
| دبوس 205 | I/O — User I/O pin |
| دبوس 206 | I/O — User I/O pin |
| دبوس 207 | GND — Ground |
| دبوس 208 | I/O — User I/O pin |
| دبوس 209 | I/O — User I/O pin |
| دبوس 210 | I/O — User I/O pin |
| دبوس 211 | I/O — User I/O pin |
| دبوس 212 | I/O — User I/O pin |
| دبوس 213 | I/O — User I/O pin |
| دبوس 214 | VCC — Core supply voltage (5.0 V) |
| دبوس 215 | I/O — User I/O pin |
| دبوس 216 | I/O — User I/O pin |
| دبوس 217 | I/O — User I/O pin |
| دبوس 218 | I/O — User I/O pin |
| دبوس 219 | I/O — User I/O pin |
| دبوس 220 | I/O — User I/O pin |
| دبوس 221 | GND — Ground |
| دبوس 222 | I/O — User I/O pin |
| دبوس 223 | I/O — User I/O pin |
| دبوس 224 | I/O — User I/O pin |
| دبوس 225 | I/O — User I/O pin |
| دبوس 226 | I/O — User I/O pin |
| دبوس 227 | I/O — User I/O pin |
| دبوس 228 | VCC — Core supply voltage (5.0 V) |
| دبوس 229 | TDO — JTAG Test Data Out |
| دبوس 230 | TDI — JTAG Test Data In |
| دبوس 231 | TMS — JTAG Test Mode Select |
| دبوس 232 | TCK — JTAG Test Clock |
| دبوس 233 | nSTATUS — Configuration status (active-low) |
| دبوس 234 | nCONFIG — Configuration control (active-low) |
| دبوس 235 | CONF_DONE — Configuration done indicator |
| دبوس 236 | DCLK — Configuration clock input |
| دبوس 237 | DATA0 — Configuration data input |
| دبوس 238 | I/O — User I/O pin |
| دبوس 239 | I/O — User I/O pin |
| دبوس 240 | GND — Ground |
التطبيقات النموذجية
EPF81188ARC240-4AA مناسب لـ 7 التطبيقs: Telecommunications Line-Card Glue Logic, Industrial Control Backplane Bridging, ASIC Prototyping and Emulation, Parallel Bus Bridge and Protocol Converter, Legacy Test and Measurement Equipment, Legacy Avionics and Defense Subsystems, Educational and FPGA Training Platforms.
Telecommunications Line-Card Glue Logic
The EPF81188ARC240-4AA's 184 user I/O and 1,008 logic elements make it well-suited for telecommunications line-card glue logic where it bridges multiple parallel bus standards, implements custom serial-protocol state machines, and aggregates interrupts. The FLEX 8000 FastTrack interconnect provides predictable timing critical for TDM bus interfaces and framer handshakes. Place the device between the line-interface IC and the host processor, with the EPC1441 configuration device loading the bitstream from a parallel EPROM at power-up. Designers favor the 240-RQFP package over BGA alternatives because line-card backplanes commonly use 4-layer FR-4 PCBs where QFP assembly is far more reliable than BGA rework.
موصى به
Industrial Control Backplane Bridging
In industrial control backplanes, the EPF81188ARC240-4AA bridges legacy VME, ISA, or proprietary parallel buses to modern processors, performing address decoding, wait-state insertion, and interrupt prioritization in hardware. The 4-input LUT architecture efficiently implements wide address decoders, and the 184 I/O pins accommodate multi-master arbitration across 16- and 32-bit data buses simultaneously. Industrial temperature screening (-40 C to +85 C) makes the part suitable for factory-floor controllers and motor-drive auxiliary boards. The RQFP-240 footprint also enables easy field-replacement on legacy backplanes that were designed before BGA became standard, reducing maintenance cost for installed-base systems.
موصى به
ASIC Prototyping and Emulation
Engineers historically used the EPF81188ARC240-4AA for ASIC prototyping, mapping gate-level netlists into the FLEX 8000 LUT fabric to validate ASIC designs before tape-out. The SRAM-based configuration supports rapid design iteration via JTAG re-programming, with the 240-RQFP package providing access to all 184 I/O for logic-analyzer probing during validation. For ASIC prototyping of designs up to ~10K gates, the EPF81188 family delivers near-ASIC timing when speed-grade -4 is selected. Modern ASIC prototyping typically uses larger FPGAs, but the EPF81188 remains in service for legacy validation rigs and university teaching labs.
موصى به
Parallel Bus Bridge and Protocol Converter
The EPF81188ARC240-4AA excels at parallel bus bridging between incompatible interfaces such as PCI-to-ISA, VME-to-VXI, or custom DSP-to-microprocessor links. The 184 user I/O pins support simultaneous 32-bit data buses plus extensive control and address lines, and the FLEX 8000 architecture provides deterministic pin-to-pin delays for synchronous bus protocols. Industrial designers pair the EPF81188 with an EPC1 configuration device in systems where JTAG re-programmability is not required and a one-time factory programming suffices. The RQFP package's wide 0.5 mm lead pitch accommodates hand-rework during field upgrades, which is critical for long-life industrial systems.
موصى به
Legacy Test and Measurement Equipment
Test and measurement instruments such as oscilloscopes, logic analyzers, and protocol testers commonly embed the EPF81188ARC240-4AA for custom trigger logic, pattern generation, and timing measurements. The 1,008 logic elements provide sufficient capacity for parallel pattern matching across 32+ channels, while the 184 I/O accommodate both the stimulus and response paths without external multiplexing. The 5 V core supply simplifies integration with legacy analog front-ends that use bipolar or BiCMOS signal conditioning. For test equipment requiring long-term field support, Rochester Electronics and authorized aftermarket distributors continue to supply the EPF81188ARC240-4AA with full traceability.
موصى به
Legacy Avionics and Defense Subsystems
Defense and avionics programs that were designed in the late 1990s and early 2000s still field equipment containing the EPF81188ARC240-4AA, where it implements MIL-STD-1553 bus interfaces, ARINC 429 transceivers, and custom radar-timing logic. The industrial temperature range and CMOS SRAM configuration meet the reliability requirements of these long-life programs. Modernization efforts typically replace EPF81188 designs with radiation-tolerant FPGAs, but for sustainment and depot-level repair, the EPF81188ARC240-4AA remains procurable via authorized distributors. Designers should plan a multi-year inventory buffer given the part's NRND status and limited wafer supply.
موصى به
Educational and FPGA Training Platforms
University digital-design labs and FPGA training courses continue to use the EPF81188ARC240-4AA on legacy Altera development boards because of its well-documented architecture and abundant educational reference designs. The FLEX 8000 family introduced concepts (LABs, FastTrack, 4-input LUTs, embedded carry chains) that map directly onto modern Cyclone and MAX devices, making the EPF81188 a valuable pedagogical tool. Students learn VHDL/Verilog synthesis, static timing analysis, and JTAG configuration using the EPF81188 plus its EPC configuration devices. The 240-RQFP package is also easier for hand-soldering lab prototypes than fine-pitch BGA packages.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ EPF81188ARC240-4AA — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | EPF81188ARC240-4 | EPF81188ARC240-3 | EPF81188ARC240-2 | EPF81188AQC240-4 | EPF81188AQC240-3 | EPF81188AQC240-2 |
|---|---|---|---|---|---|---|---|
| Brand | Intel | Intel | Intel | Intel | Intel | Intel | Intel |
| Package | 240-RQFP | 240-RQFP - same | 240-RQFP - same | 240-RQFP - same | 240-QFP - same footprint | 240-QFP - same footprint | 240-QFP - same footprint |
| Logic Elements | 1,008 | 1,008 - identical | 1,008 - identical | 1,008 - identical | 1,008 - identical | 1,008 - identical | 1,008 - identical |
| User I/O | 184 | 184 - identical | 184 - identical | 184 - identical | 184 - identical | 184 - identical | 184 - identical |
| Speed Grade | -4 (fastest) | -4 (identical speed) | -3 (slower) | -2 (slowest) | -4 (identical speed) | -3 (slower) | -2 (slowest) |
| Temperature Grade | Industrial (-40C to +85C) | Industrial | Industrial | Industrial | Commercial | Commercial | Commercial |
| Core Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| Configuration Interface | EPC1/EPC1064/EPC1213/EPC1441 | Same EPC devices | Same EPC devices | Same EPC devices | Same EPC devices | Same EPC devices | Same EPC devices |
| Family | FLEX 8000 | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same |
أبرز الفروقات
- Highest speed grade available in FLEX 8000 RQFP-240 package (مقابلEPF81188ARC240-3)
- Industrial temperature grade for harsh environments (مقابلEPF81188AQC240-4)
- 240-pin RQFP with maximum I/O density for legacy QFP-only designs (مقابلEPF81188AQI208-4)
ملاحظات التصميم
The EPF81188ARC240-4AA operates from a single 5.0 V VCC supply. Place at least four 0.1 uF ceramic decoupling capacitors around the package periphery - one near each VCC/GND pair cluster (approximately pins 5, 18, 32, 46, 60, 74, 88, 102, 116, 130, 144, 158, 172, 186, 200, 214, 228 per the datasheet pinout). Bulk 10-47 uF tantalum or polymer capacitors should be placed within 1 inch of the device. Power-up sequencing requires VCC to ramp monotonically to 4.75 V within the datasheet-specified time to ensure clean SRAM configuration.
FLEX 8000 devices lose their configuration on every power-down because they use SRAM cells - a non-volatile configuration device (EPC1, EPC1064, EPC1213, or EPC1441) MUST be present or the device will power up unconfigured. CONF_DONE must be monitored externally before releasing system reset. JTAG instructions that violate the BSDL specification can put the TAP controller into an unknown state; reset via TCK TMS sequence before re-attempting. Do not hot-swap the device - SRAM-based FPGAs can latch up if VCC is applied before I/O buffers are properly biased.
Estimated: at maximum logic utilization (~85% LEs switching at 50 MHz, 5.0 V VCC), the EPF81188ARC240-4AA dissipates approximately 1.5-2.0 W. The 240-RQFP package theta_JA is approximately 25-30 C/W (per typical Altera QFP thermal data), so junction temperature rise above ambient is roughly 38-60 C. For sealed enclosures without airflow, ensure ambient temperature remains below 60 C for safe operation. Always refer to the manufacturer datasheet thermal characterization section for your specific board stack-up and airflow conditions.
The 240-RQFP package has a 0.5 mm lead pitch and 32.0 x 32.0 mm body size, requiring 4-layer PCB minimum with continuous ground plane beneath the device for signal integrity. Use 0.2 mm (8 mil) trace/space rules for fanout and 0.5 mm via-pad with 0.25 mm drill for via-in-pad if BGA breakouts are nearby. Keep configuration clock (DCLK) traces short and isolated from switching I/O to avoid coupling noise into the configuration controller. Place the EPC configuration device within 50 mm of the EPF81188 to keep DCLK/Data rise times under 10 ns.
معلومات الامتثال
Compliance certifications were not present in the verified web data. The EPF81188ARC240-4AA is a 1990s-vintage FPGA; original Altera datasheets of that era rarely specified RoHS/REACH compliance. Confirm compliance requirements directly with the franchised distributor (Rochester Electronics) at order entry. AEC-Q100 is not applicable for FPGAs.
