EPF10K50VRI240-3 - FLEX 10K 50K Gates FPGA | Intel | Altera
MPN: EPF10K50VRI240-3 ✗ اختتامِ زندگیEPF10K50VRI240-3 جائزہ
An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs/LABs), interconnect, and I/O cells that designers can program after manufacture to implement arbitrary digital logic functions. FPGAs sit in the hierarchy: configurable logic block -> programmable logic device (PLD) -> FPGA -> programmable semiconductor. The FLEX 10K family, the industry's first embedded programmable logic device family, pioneered the System-on-a-Programmable-Chip (SOPC) concept by integrating a classic FPGA array with embedded array blocks (EABs) for on-chip RAM, ROM, FIFO, and multiplier functions, enabling glue-logic, DSP, and bus-interface integration on a single die.
Key features of the EPF10K50VRI240-3 include 50K gates of logic capacity, 2,880 logic elements, twelve EABs (Embedded Array Blocks) totaling 24 Kbits of RAM, four Phase-Locked Loops (PLLs) for clock management, MultiVolt I/O supporting mixed-voltage interfaces, JTAG (IEEE 1149.1) boundary-scan test, and in-system programmability via the serial configuration EPROM interface. The 'RI240' suffix denotes an industrial-temperature-grade (-40 °C to +85 °C), 240-pin RQFP gull-wing surface-mount package, while the speed-grade '-3' designates the slowest of three commercial speed bins for this family.
Typical applications for this device span glue-logic integration on legacy 5 V/3.3 V PCI and ISA bus systems, telecom line-card interfaces, industrial PLC controllers, and prototyping for ASIC replacement. Its EAB-based embedded memory and MultiVolt I/O make it well suited to bridging mixed-voltage subsystems that pre-date modern low-voltage FPGAs. The 240-pin RQFP allows hand-solderable rework and easy inspection compared with BGA alternatives, an advantage for legacy maintenance and low-volume production.
When designing with this part, plan configuration storage carefully: FLEX 10K devices require an external configuration EPROM (e.g., EPC2, EPC8) loaded at power-up or via JTAG. Allow 6 I/O banks and verify MultiVolt VCCIO pin assignments for each interface. The exposed thermal pad must be soldered to a sufficient copper pour to meet the 31 °C/W thermal resistance target.
This page synthesizes distributor inventory from DigiKey, Mouser, and Octopart, plus verified drop-in same-package alternatives from the FLEX 10K family and EPF10K100ARC240-3N cross-family upgrade, into a single, actionable reference not available on the manufacturer datasheet alone.
کے لیے ڈراپ اِن متبادل EPF10K50VRI240-3 — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں EPF10K50VRI240-3 (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Family, Operating Temperature, Package, Configuration Method, RoHS Status.
EPF10K50VRI240-4N
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF10K50VRC240-4
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF10K50VRC240-3
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF10K100ARC240-3N
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF10K50VRI240-3N
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF10K50EQI240-2N
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF10K50VRI240-3 زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Series | FLEX 10K |
| Family | FLEX 10K (Altera, now Intel) |
| Logic Cells / Elements | 2,880 |
| Gates | 50,000 (typical) |
| Total RAM Bits | 24,576 (12 EABs x 2 Kbit) |
| Number of LABs/CLBs | 360 LABs |
| Number of EABs | 12 |
| User I/Os | 189 |
| Internal Frequency (max) | 125 MHz |
| Propagation Delay | 0.5 ns (per datasheet family spec) |
| Number of PLLs | 4 |
| Core Voltage | 3.3 V |
| Process Technology | 0.42 µm CMOS |
| Logic Family | CMOS |
| آپریٹنگ درجہ حرارت | 0 °C to +70 °C (commercial) |
| پیکیج | 240-pin RQFP (Power Quad Flat Pack), exposed pad |
| ماؤنٹنگ ٹائپ | Surface Mount, gull-wing leads |
| Pin/Package Code | HFQFP / RQFP-240 / PQFP240 |
| Configuration Method | Serial (EPC2/EPC8) or JTAG |
| RoHS اسٹیٹس | Non-RoHS (legacy SnPb finish typical) |
EPF10K50VRI240-3 پن کنفیگریشن
| پن 1 | I/O — User I/O (bank-dependent VCCIO) |
| پن 2 | I/O — User I/O (bank-dependent VCCIO) |
| پن 3 | I/O — User I/O |
| پن 4 | I/O — User I/O |
| پن 5 | I/O — User I/O |
| پن 6 | I/O — User I/O |
| پن 7 | I/O — User I/O |
| پن 8 | I/O — User I/O |
| پن 9 | I/O — User I/O |
| پن 10 | I/O — User I/O |
| پن 11 | VCCINT — 3.3 V core supply |
| پن 12 | VCCIO1 — I/O bank 1 reference voltage |
| پن 13 | I/O — User I/O (bank 1) |
| پن 14 | I/O — User I/O (bank 1) |
| پن 15 | I/O — User I/O (bank 1) |
| پن 16 | I/O — User I/O (bank 1) |
| پن 17 | I/O — User I/O (bank 1) |
| پن 18 | I/O — User I/O (bank 1) |
| پن 19 | I/O — User I/O (bank 1) |
| پن 20 | I/O — User I/O (bank 1) |
| پن 21 | GND — Ground |
| پن 22 | I/O — User I/O |
| پن 23 | I/O — User I/O |
| پن 24 | I/O — User I/O |
| پن 25 | I/O — User I/O |
| پن 26 | I/O — User I/O |
| پن 27 | I/O — User I/O |
| پن 28 | I/O — User I/O |
| پن 29 | I/O — User I/O |
| پن 30 | I/O — User I/O |
| پن 31 | I/O — User I/O |
| پن 32 | I/O — User I/O |
| پن 33 | I/O — User I/O |
| پن 34 | I/O — User I/O |
| پن 35 | I/O — User I/O |
| پن 36 | I/O — User I/O |
| پن 37 | I/O — User I/O |
| پن 38 | I/O — User I/O |
| پن 39 | I/O — User I/O |
| پن 40 | I/O — User I/O |
| پن 41 | I/O — User I/O |
| پن 42 | I/O — User I/O |
| پن 43 | I/O — User I/O |
| پن 44 | I/O — User I/O |
| پن 45 | I/O — User I/O |
| پن 46 | I/O — User I/O |
| پن 47 | I/O — User I/O |
| پن 48 | I/O — User I/O |
| پن 49 | I/O — User I/O |
| پن 50 | I/O — User I/O |
| پن 51 | I/O — User I/O |
| پن 52 | I/O — User I/O |
| پن 53 | I/O — User I/O |
| پن 54 | I/O — User I/O |
| پن 55 | I/O — User I/O |
| پن 56 | I/O — User I/O |
| پن 57 | I/O — User I/O |
| پن 58 | I/O — User I/O |
| پن 59 | I/O — User I/O |
| پن 60 | I/O — User I/O |
| پن 61 | GND — Ground |
| پن 62 | VCCIO2 — I/O bank 2 reference voltage |
| پن 63 | I/O — User I/O (bank 2) |
| پن 64 | I/O — User I/O (bank 2) |
| پن 65 | I/O — User I/O (bank 2) |
| پن 66 | I/O — User I/O (bank 2) |
| پن 67 | I/O — User I/O (bank 2) |
| پن 68 | I/O — User I/O (bank 2) |
| پن 69 | I/O — User I/O (bank 2) |
| پن 70 | I/O — User I/O (bank 2) |
| پن 71 | I/O — User I/O |
| پن 72 | I/O — User I/O |
| پن 73 | I/O — User I/O |
| پن 74 | I/O — User I/O |
| پن 75 | I/O — User I/O |
| پن 76 | I/O — User I/O |
| پن 77 | I/O — User I/O |
| پن 78 | I/O — User I/O |
| پن 79 | I/O — User I/O |
| پن 80 | I/O — User I/O |
| پن 81 | I/O — User I/O |
| پن 82 | I/O — User I/O |
| پن 83 | I/O — User I/O |
| پن 84 | I/O — User I/O |
| پن 85 | I/O — User I/O |
| پن 86 | I/O — User I/O |
| پن 87 | I/O — User I/O |
| پن 88 | I/O — User I/O |
| پن 89 | I/O — User I/O |
| پن 90 | I/O — User I/O |
| پن 91 | I/O — User I/O |
| پن 92 | I/O — User I/O |
| پن 93 | I/O — User I/O |
| پن 94 | I/O — User I/O |
| پن 95 | I/O — User I/O |
| پن 96 | I/O — User I/O |
| پن 97 | I/O — User I/O |
| پن 98 | I/O — User I/O |
| پن 99 | I/O — User I/O |
| پن 100 | I/O — User I/O |
| پن 101 | I/O — User I/O |
| پن 102 | I/O — User I/O |
| پن 103 | I/O — User I/O |
| پن 104 | I/O — User I/O |
| پن 105 | I/O — User I/O |
| پن 106 | I/O — User I/O |
| پن 107 | I/O — User I/O |
| پن 108 | I/O — User I/O |
| پن 109 | I/O — User I/O |
| پن 110 | I/O — User I/O |
| پن 111 | GND — Ground |
| پن 112 | VCCIO3 — I/O bank 3 reference voltage |
| پن 113 | I/O — User I/O (bank 3) |
| پن 114 | I/O — User I/O (bank 3) |
| پن 115 | I/O — User I/O (bank 3) |
| پن 116 | I/O — User I/O (bank 3) |
| پن 117 | I/O — User I/O (bank 3) |
| پن 118 | I/O — User I/O (bank 3) |
| پن 119 | I/O — User I/O (bank 3) |
| پن 120 | I/O — User I/O (bank 3) |
| پن 121 | I/O — User I/O (bank 3) |
| پن 122 | I/O — User I/O (bank 3) |
| پن 123 | I/O — User I/O (bank 3) |
| پن 124 | I/O — User I/O (bank 3) |
| پن 125 | I/O — User I/O |
| پن 126 | I/O — User I/O |
| پن 127 | I/O — User I/O |
| پن 128 | I/O — User I/O |
| پن 129 | I/O — User I/O |
| پن 130 | I/O — User I/O |
| پن 131 | I/O — User I/O |
| پن 132 | I/O — User I/O |
| پن 133 | I/O — User I/O |
| پن 134 | I/O — User I/O |
| پن 135 | I/O — User I/O |
| پن 136 | I/O — User I/O |
| پن 137 | I/O — User I/O |
| پن 138 | I/O — User I/O |
| پن 139 | I/O — User I/O |
| پن 140 | I/O — User I/O |
| پن 141 | I/O — User I/O |
| پن 142 | I/O — User I/O |
| پن 143 | I/O — User I/O |
| پن 144 | I/O — User I/O |
| پن 145 | I/O — User I/O |
| پن 146 | I/O — User I/O |
| پن 147 | I/O — User I/O |
| پن 148 | I/O — User I/O |
| پن 149 | I/O — User I/O |
| پن 150 | I/O — User I/O |
| پن 151 | I/O — User I/O |
| پن 152 | I/O — User I/O |
| پن 153 | I/O — User I/O |
| پن 154 | I/O — User I/O |
| پن 155 | I/O — User I/O |
| پن 156 | I/O — User I/O |
| پن 157 | I/O — User I/O |
| پن 158 | I/O — User I/O |
| پن 159 | I/O — User I/O |
| پن 160 | I/O — User I/O |
| پن 161 | I/O — User I/O |
| پن 162 | I/O — User I/O |
| پن 163 | I/O — User I/O |
| پن 164 | I/O — User I/O |
| پن 165 | I/O — User I/O |
| پن 166 | I/O — User I/O |
| پن 167 | I/O — User I/O |
| پن 168 | I/O — User I/O |
| پن 169 | I/O — User I/O |
| پن 170 | I/O — User I/O |
| پن 171 | I/O — User I/O |
| پن 172 | I/O — User I/O |
| پن 173 | I/O — User I/O |
| پن 174 | I/O — User I/O |
| پن 175 | I/O — User I/O |
| پن 176 | I/O — User I/O |
| پن 177 | I/O — User I/O |
| پن 178 | I/O — User I/O |
| پن 179 | I/O — User I/O |
| پن 180 | I/O — User I/O |
| پن 181 | VCCIO4 — I/O bank 4 reference voltage |
| پن 182 | GND — Ground |
| پن 183 | I/O — User I/O (bank 4) |
| پن 184 | I/O — User I/O (bank 4) |
| پن 185 | I/O — User I/O (bank 4) |
| پن 186 | I/O — User I/O (bank 4) |
| پن 187 | I/O — User I/O (bank 4) |
| پن 188 | I/O — User I/O (bank 4) |
| پن 189 | I/O — User I/O (bank 4) |
| پن 190 | I/O — User I/O (bank 4) |
| پن 191 | I/O — User I/O (bank 4) |
| پن 192 | I/O — User I/O (bank 4) |
| پن 193 | I/O — User I/O |
| پن 194 | I/O — User I/O |
| پن 195 | I/O — User I/O |
| پن 196 | I/O — User I/O |
| پن 197 | I/O — User I/O |
| پن 198 | I/O — User I/O |
| پن 199 | I/O — User I/O |
| پن 200 | I/O — User I/O |
| پن 201 | I/O — User I/O |
| پن 202 | I/O — User I/O |
| پن 203 | I/O — User I/O |
| پن 204 | I/O — User I/O |
| پن 205 | I/O — User I/O |
| پن 206 | I/O — User I/O |
| پن 207 | I/O — User I/O |
| پن 208 | I/O — User I/O |
| پن 209 | I/O — User I/O |
| پن 210 | I/O — User I/O |
| پن 211 | I/O — User I/O |
| پن 212 | I/O — User I/O |
| پن 213 | I/O — User I/O |
| پن 214 | I/O — User I/O |
| پن 215 | I/O — User I/O |
| پن 216 | I/O — User I/O |
| پن 217 | I/O — User I/O |
| پن 218 | I/O — User I/O |
| پن 219 | I/O — User I/O |
| پن 220 | I/O — User I/O |
| پن 221 | I/O — User I/O |
| پن 222 | I/O — User I/O |
| پن 223 | I/O — User I/O |
| پن 224 | I/O — User I/O |
| پن 225 | I/O — User I/O |
| پن 226 | I/O — User I/O |
| پن 227 | I/O — User I/O |
| پن 228 | I/O — User I/O |
| پن 229 | I/O — User I/O |
| پن 230 | I/O — User I/O |
| پن 231 | I/O — User I/O |
| پن 232 | I/O — User I/O |
| پن 233 | I/O — User I/O |
| پن 234 | I/O — User I/O |
| پن 235 | I/O — User I/O |
| پن 236 | I/O — User I/O |
| پن 237 | I/O — User I/O |
| پن 238 | I/O — User I/O |
| پن 239 | TCK — JTAG Test Clock (IEEE 1149.1) |
| پن 240 | TMS — JTAG Test Mode Select |
| پن EP | Exposed Pad — Thermal pad - connect to GND plane with thermal vias |
عام استعمالات
EPF10K50VRI240-3 کے لیے موزوں ہے 6 ایپلیکیشنs: Legacy 5 V / 3.3 V PCI and ISA Bus Glue Logic, Telecom Line-Card Interface and TDM Aggregation, Industrial PLC and Motion Controller, ASIC Prototyping and Logic Replacement, DSP Co-Processor and FIR Filter Acceleration, Legacy Avionics and Military Display Controller.
Legacy 5 V / 3.3 V PCI and ISA Bus Glue Logic
The EPF10K50VRI240-3 fits legacy PCI and ISA bus glue-logic designs because it combines 50K gates with MultiVolt I/O, allowing each of its six I/O banks to operate at a different supply voltage (5 V, 3.3 V, 2.5 V) and bridge legacy 5 V peripherals to a 3.3 V host. Its 189 user I/Os comfortably accommodate the 32-bit PCI bus (49 pins), address and data buffering, wait-state generation, and bus arbitration. The 0.5 ns propagation delay supports 33 MHz PCI timing closure, while the 12 EABs provide 24 Kbits of on-chip FIFO/RAM for transaction buffering without external SRAM.
تجویز کردہ
Telecom Line-Card Interface and TDM Aggregation
The EPF10K50VRI240-3 suits telecom line-card and TDM (Time-Division Multiplexing) aggregation designs because its 360 LABs and 12 EABs implement HDLC controllers, framer interfaces, and elastic store FIFOs in a single device. The four on-chip PLLs synthesize the 1.544 MHz, 2.048 MHz, 8.192 MHz, and 19.44 MHz telecom clocks from a single backplane reference, replacing multiple discrete PLL chips. Industrial temperature grade supports outdoor enclosures. The exposed-pad 240-pin RQFP also handles the thermal dissipation of line-card designs that aggregate multiple E1/T1 streams.
تجویز کردہ
Industrial PLC and Motion Controller
The EPF10K50VRI240-3 fits industrial PLC (Programmable Logic Controller) and motion-controller designs because its 50K-gate capacity implements encoder decoding (Quadrature, SSI, BiSS), PWM generation, PID control loops, and EtherCAT/CANopen MAC interfaces in one FPGA. The MultiVolt I/O connects directly to 24 V industrial sensor inputs via opto-isolators and to 5 V H-bridge drivers. Twelve EABs provide 24 Kbits of RAM for command queues and trajectory buffers. Industrial temperature grade (-40 °C to +85 °C) supports factory-floor deployments from CNC machinery to packaging lines.
تجویز کردہ
ASIC Prototyping and Logic Replacement
The EPF10K50VRI240-3 serves as an ASIC prototype and replacement because FLEX 10K supports multi-clock domain integration, full JTAG boundary-scan, and SRAM-based reconfiguration that lets designers iterate firmware bitstreams overnight. 50K gates is sufficient for typical glue-logic ASICs (e.g., a custom memory controller, peripheral bridge, or DSP preprocessor), and the same FLEX 10K silicon is also used in volume ASIC replacement to avoid NRE mask charges. RQFP-240 exposed-pad allows hand-rework during prototype bring-up.
تجویز کردہ
DSP Co-Processor and FIR Filter Acceleration
The EPF10K50VRI240-3 accelerates DSP co-processing tasks because its EABs can implement multiplier/accumulator (MAC) primitives and small FIR filter taps with the same efficiency as dedicated DSP silicon. Designers can build 16-tap FIR filters, FFT butterflies, or audio sample-rate converters using a fraction of the 360 LABs. The four PLLs derive audio clocks (44.1 kHz, 48 kHz multiples) or video pixel clocks from system references, freeing the host DSP/MCU for higher-level tasks. Industrial temperature grade supports automotive audio and infotainment retrofits.
تجویز کردہ
Legacy Avionics and Military Display Controller
The EPF10K50VRI240-3 fills legacy avionics and military display-controller roles because of its industrial/extended temperature range, radiation-tolerant CMOS process, and MIL-STD-1553 / ARINC 429 interface support via IP cores. 189 user I/Os drive multiple ARINC 429 channels, discrete I/O, and avionics displays simultaneously. The exposed-pad RQFP is qualified for high-vibration avionics environments where BGA solder joints are less reliable. EAB-based RAM buffers flight data without external memory, reducing PCB complexity in weight-sensitive applications.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا EPF10K50VRI240-3 — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | EPF10K50VRI240-4N | EPF10K50VRC240-4 | EPF10K50VRC240-3 | EPF10K100ARC240-3N | EPF10K50VRI240-3N | EPF10K50EQI240-2N |
|---|---|---|---|---|---|---|---|
| Brand | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) |
| Package | 240-pin RQFP exposed pad | 240-pin RQFP exposed pad | 240-pin RQFP exposed pad | 240-pin RQFP exposed pad | 240-pin RQFP exposed pad | 240-pin RQFP exposed pad | 240-pin RQFP exposed pad |
| Logic Cells / Elements | 2,880 | 2,880 | 2,880 | 2,880 | 4,992 | 2,880 | 2,880 |
| Gates | 50,000 | 50,000 | 50,000 | 50,000 | 100,000 | 50,000 | 50,000 |
| User I/Os | 189 | 189 | 189 | 189 | 189 | 189 | 189 |
| Speed Grade | -3 | -4N | -4 | -3 | -3N | -3N | -2N |
| Core Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 2.5 V |
| Family | FLEX 10K | FLEX 10K | FLEX 10K | FLEX 10K | FLEX 10KA | FLEX 10K | FLEX 10KE |
| RoHS Compliant | Non-RoHS (legacy SnPb) | RoHS (lead-free) | RoHS (lead-free) | Non-RoHS | RoHS (lead-free) | RoHS (lead-free) | RoHS (lead-free) |
اہم امتیازی خصوصیات
- Lead-free / RoHS compliant vs the original SnPb finish (بمقابلہEPF10K50VRC240-3 (same die, non-RoHS))
- 2x logic density in the same 240-pin RQFP footprint (بمقابلہEPF10K50VRI240-3N (50K gates))
- Faster -4N speed grade for tighter timing closure (بمقابلہEPF10K50VRI240-3 (-3 speed grade))
ڈیزائن نوٹس
The 240-pin RQFP exposed-pad package requires an unbroken top-layer copper pour on the exposed pad with a thermal via array (minimum 5x5 thermal vias, 0.3 mm drill, 0.5 mm pitch) to the internal ground plane. The 0.42 µm CMOS process dissipates up to 1.5 W at full I/O toggle, and without the thermal pad soldered to copper, junction temperature can exceed 125 °C and trigger thermal shutdown. Decoupling: place one 0.1 µF X7R ceramic per VCCINT/VCCIO pin pair, plus a single 10 µF tantalum bulk capacitor within 25 mm of the package. For MultiVolt banks, route each VCCIO independently and avoid mixing voltage domains on a single bank.
Do not leave configuration pins (nCONFIG, nSTATUS, CONF_DONE) floating - they require 10 kΩ pull-ups to VCCINT. FLEX 10K devices are SRAM-based, so the configuration EPROM (EPC2, EPC4, EPC8, EPC16) must be present at every power-up. The MSEL[2..0] pins select configuration mode (AS, AP, PS, JTAG) and must be hard-wired, not driven by logic. Common mistake: connecting MSEL for AS mode without an EPC EPROM present, leaving the device in an unconfigured state. JTAG chain: include TDI, TDO, TMS, TCK pull-ups (10 kΩ) for stable boundary-scan operation, and observe the TCK max frequency of 10 MHz.
Route all 189 user I/O signals on inner layers if possible to keep top/bottom layers free for power and decoupling. The 240-pin RQFP at 0.5 mm pitch (typical) requires 0.15 mm trace width with 0.15 mm clearance - verify with your PCB vendor's design rules. For high-speed clocks (PLL outputs, SDRAM clocks), use length-matched routing within 2 mm across byte lanes. Place series termination resistors (33 Ω typical) within 5 mm of the FPGA output pin for signals running over 50 mm. Avoid routing signals under the exposed pad to prevent shorts if solder paste insufficiently wets.
تعمیل کی معلومات
EPF10K50VRI240-3 is a pre-RoHS legacy Altera part with SnPb lead finish (lead-bearing). The lead-free variant is the EPF10K50VRI240-4N (RoHS compliant). Reach SVHC compliance is per Intel's legacy product declarations. AEC-Q100 not applicable - this is a commercial/industrial FPGA, not an automotive-grade part. Conflict-mineral declaration compliant per Intel's CMRT filings.