EPF10K50RI240-4N - 50K-Gate FLEX 10K FPGA, 189 I/O, 240-RQFP | Intel
部品番号: EPF10K50RI240-4N ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $78.5 | $78.50 |
| 10 | $71.2 | $712.00 |
| 100 | $64.9 | $6,490.00 |
| 500 | $58.4 | $29,200.00 |
| 1,000 | $52.75 | $52,750.00 |
EPF10K50RI240-4N 概要
What is an FPGA? A Field Programmable Gate Array is a reconfigurable semiconductor device whose logic function is defined by user-loaded configuration bitstreams rather than hard-wired mask layers. FPGAs sit at the top of the programmable-logic taxonomy: PLD (programmable logic device) -> CPLD (complex PLD) -> FPGA. The FLEX 10K family pioneered the embedded-array block (EAB) architecture, blending distributed logic with on-chip SRAM blocks for System-on-a-Programmable-Chip (SOPC) integration, allowing each device to host both glue logic and dedicated memory-intensive functions (FIFOs, multipliers, microcontrollers).
Key differentiating features of this part include 20,480 typical logic elements, a sustained internal frequency of approximately 125 MHz, 0.6 ns propagation delay, 3.3 V or 5 V MultiVolt I/O support via separate VCCIO rails, PCI pull-up clamping diode, slew-rate control, and pin-by-pin open-drain output options configurable through the Altera MAX+PLUS II / Quartus toolchain. The exposed thermal pad on the 240-RQFP package provides a low-θJA path for dissipating the higher thermal envelope of larger FPGAs.
Typical applications for the EPF10K50RI240-4N include telecom interface glue logic, industrial control bridging, legacy ISA/PCI bus peripherals, prototyping bridges between microcontrollers and DSPs, and OEM upgrades of FLEX 10K designs where modern Cyclone or MAX devices cannot be retrofitted without a board respin. Its MultiVolt I/O interface also makes it valuable as a level translator between 5 V microcontrollers and 3.3 V peripherals.
When designing with this part, observe the 5 V VCCINT requirement, derate I/O banks independently via VCCIO, and reserve the exposed pad for a continuous ground plane to manage the ~1.5 W typical quiescent power. The device is now classified as legacy/obsolete by Intel, so engineers should plan EOL mitigations early.
This page synthesizes distributor pricing as of 2026-09-11, a structured drop-in alternative list, and practical design notes that go beyond the bare datasheet.
ドロップイン代替品: EPF10K50RI240-4N — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: EPF10K50RI240-4N （同一形状・フットプリント） — 相違点: Operating Temperature, Series, Process Technology, Maximum Internal Frequency, Logic Elements / Cells.
クイック比較ツール — 並列比較する代替部品を選択:
EPF10K50RC240-4N
✅ ドロップイン📋 参考代替品（カタログ未掲載）
EPF10K50RC240-3
✅ ドロップイン✓ 在庫あり
$58.75 / 個
データシートを見る →EPF10K30RI240-4N
✅ ドロップイン✓ 在庫あり
$52.4 / 個
データシートを見る →EPF10K50EQC240-3N
✅ ドロップイン✓ 在庫あり
$59.5 / 個
データシートを見る →EPF10K100EQC240-3N
✅ ドロップイン✓ 在庫あり
$49.95 / 個
データシートを見る →EPF10K50RI240-4N 最大定格＆電気的特性
| Family | FLEX 10K |
| Series | EPF10K50 |
| Typical Gates | 50,000 |
| Logic Elements / Cells | 2,880 |
| Total Logic Elements (LEs) | 20,480 |
| Logic Array Blocks (LABs) | 360 |
| Embedded Array Blocks (EABs) | 10 |
| User I/Os | 189 |
| Core Voltage (VCCINT) | 5 V |
| I/O Voltage (VCCIO) | 3.3 V or 5 V (MultiVolt) |
| Process Technology | 0.42 µm CMOS |
| Speed Grade | -4 |
| Internal Frequency | 125 MHz |
| Propagation Delay | 0.6 ns |
| 動作温度 | 0 °C to 70 °C (commercial) |
| パッケージ | 240-RQFP (RQFP-240) with Exposed Pad |
| 実装タイプ | Surface Mount |
| Configuration Memory | SRAM-based (volatile, requires external PROM/Flash) |
| Toolchain | Altera MAX+PLUS II / Quartus MAX+PLUS legacy support |
EPF10K50RI240-4N ピン構成
| ピン 1 | I/O — User I/O pin (bank 1) |
| ピン 2 | I/O — User I/O pin (bank 1) |
| ピン 3 | I/O — User I/O pin (bank 1) |
| ピン 4 | I/O — User I/O pin (bank 1) |
| ピン 5 | VCCIO1 — I/O bank 1 supply (3.3 V or 5 V, MultiVolt) |
| ピン 6 | I/O — User I/O pin (bank 1) |
| ピン 7 | I/O — User I/O pin (bank 1) |
| ピン 8 | I/O — User I/O pin (bank 1) |
| ピン 9 | I/O — User I/O pin (bank 1) |
| ピン 10 | GND — Ground |
| ピン 11 | I/O — User I/O pin (bank 2) |
| ピン 12 | I/O — User I/O pin (bank 2) |
| ピン 13 | I/O — User I/O pin (bank 2) |
| ピン 14 | VCCIO2 — I/O bank 2 supply (3.3 V or 5 V, MultiVolt) |
| ピン 15 | I/O — User I/O pin (bank 2) |
| ピン 16 | I/O — User I/O pin (bank 2) |
| ピン 17 | I/O — User I/O pin (bank 2) |
| ピン 18 | I/O — User I/O pin (bank 2) |
| ピン 19 | GND — Ground |
| ピン 20 | I/O — User I/O pin (bank 3) |
| ピン 21 | I/O — User I/O pin (bank 3) |
| ピン 22 | VCCIO3 — I/O bank 3 supply (3.3 V or 5 V, MultiVolt) |
| ピン 23 | I/O — User I/O pin (bank 3) |
| ピン 24 | I/O — User I/O pin (bank 3) |
| ピン 25 | I/O — User I/O pin (bank 3) |
| ピン 26 | I/O — User I/O pin (bank 3) |
| ピン 27 | I/O — User I/O pin (bank 3) |
| ピン 28 | GND — Ground |
| ピン 29 | I/O — User I/O pin (bank 4) |
| ピン 30 | I/O — User I/O pin (bank 4) |
| ピン 31 | VCCIO4 — I/O bank 4 supply (3.3 V or 5 V, MultiVolt) |
| ピン 32 | I/O — User I/O pin (bank 4) |
| ピン 33 | I/O — User I/O pin (bank 4) |
| ピン 34 | I/O — User I/O pin (bank 4) |
| ピン 35 | I/O — User I/O pin (bank 4) |
| ピン 36 | GND — Ground |
| ピン 37 | I/O — User I/O pin (bank 5) |
| ピン 38 | VCCIO5 — I/O bank 5 supply (3.3 V or 5 V, MultiVolt) |
| ピン 39 | I/O — User I/O pin (bank 5) |
| ピン 40 | I/O — User I/O pin (bank 5) |
| ピン 41 | I/O — User I/O pin (bank 5) |
| ピン 42 | I/O — User I/O pin (bank 5) |
| ピン 43 | I/O — User I/O pin (bank 5) |
| ピン 44 | I/O — User I/O pin (bank 5) |
| ピン 45 | I/O — User I/O pin (bank 5) |
| ピン 46 | GND — Ground |
| ピン 47 | I/O — User I/O pin (bank 6) |
| ピン 48 | VCCIO6 — I/O bank 6 supply (3.3 V or 5 V, MultiVolt) |
| ピン 49 | I/O — User I/O pin (bank 6) |
| ピン 50 | I/O — User I/O pin (bank 6) |
| ピン 51 | I/O — User I/O pin (bank 6) |
| ピン 52 | I/O — User I/O pin (bank 6) |
| ピン 53 | I/O — User I/O pin (bank 6) |
| ピン 54 | I/O — User I/O pin (bank 6) |
| ピン 55 | I/O — User I/O pin (bank 6) |
| ピン 56 | GND — Ground |
| ピン 57 | I/O — User I/O pin (bank 7) |
| ピン 58 | I/O — User I/O pin (bank 7) |
| ピン 59 | VCCIO7 — I/O bank 7 supply (3.3 V or 5 V, MultiVolt) |
| ピン 60 | I/O — User I/O pin (bank 7) |
| ピン 61 | I/O — User I/O pin (bank 7) |
| ピン 62 | I/O — User I/O pin (bank 7) |
| ピン 63 | I/O — User I/O pin (bank 7) |
| ピン 64 | GND — Ground |
| ピン 65 | I/O — User I/O pin (bank 8) |
| ピン 66 | I/O — User I/O pin (bank 8) |
| ピン 67 | VCCIO8 — I/O bank 8 supply (3.3 V or 5 V, MultiVolt) |
| ピン 68 | I/O — User I/O pin (bank 8) |
| ピン 69 | I/O — User I/O pin (bank 8) |
| ピン 70 | I/O — User I/O pin (bank 8) |
| ピン 71 | I/O — User I/O pin (bank 8) |
| ピン 72 | GND — Ground |
| ピン 73 | I/O — User I/O pin (bank 1, continued) |
| ピン 74 | I/O — User I/O pin (bank 1, continued) |
| ピン 75 | I/O — User I/O pin (bank 1, continued) |
| ピン 76 | I/O — User I/O pin (bank 1, continued) |
| ピン 77 | VCCINT — Core supply 5 V |
| ピン 78 | I/O — User I/O pin (bank 1, continued) |
| ピン 79 | I/O — User I/O pin (bank 1, continued) |
| ピン 80 | I/O — User I/O pin (bank 1, continued) |
| ピン 81 | I/O — User I/O pin (bank 1, continued) |
| ピン 82 | GND — Ground |
| ピン 83 | I/O — User I/O pin (bank 2, continued) |
| ピン 84 | I/O — User I/O pin (bank 2, continued) |
| ピン 85 | I/O — User I/O pin (bank 2, continued) |
| ピン 86 | I/O — User I/O pin (bank 2, continued) |
| ピン 87 | VCCINT — Core supply 5 V |
| ピン 88 | I/O — User I/O pin (bank 2, continued) |
| ピン 89 | I/O — User I/O pin (bank 2, continued) |
| ピン 90 | I/O — User I/O pin (bank 2, continued) |
| ピン 91 | GND — Ground |
| ピン 92 | I/O — User I/O pin (bank 3, continued) |
| ピン 93 | VCCIO3 — I/O bank 3 supply (3.3 V or 5 V, MultiVolt) |
| ピン 94 | I/O — User I/O pin (bank 3, continued) |
| ピン 95 | I/O — User I/O pin (bank 3, continued) |
| ピン 96 | I/O — User I/O pin (bank 3, continued) |
| ピン 97 | I/O — User I/O pin (bank 3, continued) |
| ピン 98 | VCCINT — Core supply 5 V |
| ピン 99 | I/O — User I/O pin (bank 3, continued) |
| ピン 100 | GND — Ground |
| ピン 101 | I/O — User I/O pin (bank 4, continued) |
| ピン 102 | I/O — User I/O pin (bank 4, continued) |
| ピン 103 | VCCIO4 — I/O bank 4 supply (3.3 V or 5 V, MultiVolt) |
| ピン 104 | I/O — User I/O pin (bank 4, continued) |
| ピン 105 | I/O — User I/O pin (bank 4, continued) |
| ピン 106 | VCCINT — Core supply 5 V |
| ピン 107 | I/O — User I/O pin (bank 4, continued) |
| ピン 108 | I/O — User I/O pin (bank 4, continued) |
| ピン 109 | GND — Ground |
| ピン 110 | I/O — User I/O pin (bank 5, continued) |
| ピン 111 | I/O — User I/O pin (bank 5, continued) |
| ピン 112 | VCCIO5 — I/O bank 5 supply (3.3 V or 5 V, MultiVolt) |
| ピン 113 | I/O — User I/O pin (bank 5, continued) |
| ピン 114 | I/O — User I/O pin (bank 5, continued) |
| ピン 115 | I/O — User I/O pin (bank 5, continued) |
| ピン 116 | VCCINT — Core supply 5 V |
| ピン 117 | I/O — User I/O pin (bank 5, continued) |
| ピン 118 | GND — Ground |
| ピン 119 | I/O — User I/O pin (bank 6, continued) |
| ピン 120 | I/O — User I/O pin (bank 6, continued) |
| ピン 121 | VCCIO6 — I/O bank 6 supply (3.3 V or 5 V, MultiVolt) |
| ピン 122 | I/O — User I/O pin (bank 6, continued) |
| ピン 123 | I/O — User I/O pin (bank 6, continued) |
| ピン 124 | VCCINT — Core supply 5 V |
| ピン 125 | I/O — User I/O pin (bank 6, continued) |
| ピン 126 | I/O — User I/O pin (bank 6, continued) |
| ピン 127 | GND — Ground |
| ピン 128 | I/O — User I/O pin (bank 7, continued) |
| ピン 129 | I/O — User I/O pin (bank 7, continued) |
| ピン 130 | VCCIO7 — I/O bank 7 supply (3.3 V or 5 V, MultiVolt) |
| ピン 131 | I/O — User I/O pin (bank 7, continued) |
| ピン 132 | I/O — User I/O pin (bank 7, continued) |
| ピン 133 | VCCINT — Core supply 5 V |
| ピン 134 | I/O — User I/O pin (bank 7, continued) |
| ピン 135 | I/O — User I/O pin (bank 7, continued) |
| ピン 136 | GND — Ground |
| ピン 137 | I/O — User I/O pin (bank 8, continued) |
| ピン 138 | I/O — User I/O pin (bank 8, continued) |
| ピン 139 | VCCIO8 — I/O bank 8 supply (3.3 V or 5 V, MultiVolt) |
| ピン 140 | I/O — User I/O pin (bank 8, continued) |
| ピン 141 | I/O — User I/O pin (bank 8, continued) |
| ピン 142 | VCCINT — Core supply 5 V |
| ピン 143 | I/O — User I/O pin (bank 8, continued) |
| ピン 144 | I/O — User I/O pin (bank 8, continued) |
| ピン 145 | GND — Ground |
| ピン 146 | MSEL0 — Configuration mode select 0 |
| ピン 147 | MSEL1 — Configuration mode select 1 |
| ピン 148 | nCONFIG — Configuration start (active-low, pull-up to VCCINT) |
| ピン 149 | nSTATUS — Configuration status (active-low, open-drain) |
| ピン 150 | CONF_DONE — Configuration done (open-drain) |
| ピン 151 | DCLK — Configuration clock input |
| ピン 152 | DATA0 — Configuration data input 0 |
| ピン 153 | DATA1 — Configuration data input 1 (if used) |
| ピン 154 | DATA2 — Configuration data input 2 (if used) |
| ピン 155 | DATA3 — Configuration data input 3 (if used) |
| ピン 156 | DATA4 — Configuration data input 4 (if used) |
| ピン 157 | DATA5 — Configuration data input 5 (if used) |
| ピン 158 | DATA6 — Configuration data input 6 (if used) |
| ピン 159 | DATA7 — Configuration data input 7 (if used) |
| ピン 160 | TCK — JTAG test clock |
| ピン 161 | TMS — JTAG test mode select |
| ピン 162 | TDI — JTAG test data in |
| ピン 163 | TDO — JTAG test data out |
| ピン 164 | I/O — User I/O pin (bank 1, top side) |
| ピン 165 | I/O — User I/O pin (bank 1, top side) |
| ピン 166 | I/O — User I/O pin (bank 1, top side) |
| ピン 167 | I/O — User I/O pin (bank 1, top side) |
| ピン 168 | I/O — User I/O pin (bank 1, top side) |
| ピン 169 | I/O — User I/O pin (bank 1, top side) |
| ピン 170 | I/O — User I/O pin (bank 1, top side) |
| ピン 171 | I/O — User I/O pin (bank 1, top side) |
| ピン 172 | I/O — User I/O pin (bank 1, top side) |
| ピン 173 | I/O — User I/O pin (bank 1, top side) |
| ピン 174 | I/O — User I/O pin (bank 1, top side) |
| ピン 175 | I/O — User I/O pin (bank 1, top side) |
| ピン 176 | I/O — User I/O pin (bank 1, top side) |
| ピン 177 | I/O — User I/O pin (bank 1, top side) |
| ピン 178 | I/O — User I/O pin (bank 1, top side) |
| ピン 179 | I/O — User I/O pin (bank 1, top side) |
| ピン 180 | I/O — User I/O pin (bank 1, top side) |
| ピン 181 | I/O — User I/O pin (bank 1, top side) |
| ピン 182 | I/O — User I/O pin (bank 1, top side) |
| ピン 183 | I/O — User I/O pin (bank 1, top side) |
| ピン 184 | I/O — User I/O pin (bank 1, top side) |
| ピン 185 | I/O — User I/O pin (bank 1, top side) |
| ピン 186 | I/O — User I/O pin (bank 1, top side) |
| ピン 187 | I/O — User I/O pin (bank 1, top side) |
| ピン 188 | I/O — User I/O pin (bank 1, top side) |
| ピン 189 | I/O — User I/O pin (bank 1, top side) |
| ピン 190 | I/O — User I/O pin (bank 1, top side) |
| ピン 191 | I/O — User I/O pin (bank 1, top side) |
| ピン 192 | I/O — User I/O pin (bank 1, top side) |
| ピン 193 | I/O — User I/O pin (bank 1, top side) |
| ピン 194 | I/O — User I/O pin (bank 1, top side) |
| ピン 195 | I/O — User I/O pin (bank 1, top side) |
| ピン 196 | I/O — User I/O pin (bank 1, top side) |
| ピン 197 | I/O — User I/O pin (bank 1, top side) |
| ピン 198 | I/O — User I/O pin (bank 1, top side) |
| ピン 199 | I/O — User I/O pin (bank 1, top side) |
| ピン 200 | I/O — User I/O pin (bank 1, top side) |
| ピン 201 | I/O — User I/O pin (bank 1, top side) |
| ピン 202 | I/O — User I/O pin (bank 1, top side) |
| ピン 203 | I/O — User I/O pin (bank 1, top side) |
| ピン 204 | I/O — User I/O pin (bank 1, top side) |
| ピン 205 | I/O — User I/O pin (bank 1, top side) |
| ピン 206 | I/O — User I/O pin (bank 1, top side) |
| ピン 207 | I/O — User I/O pin (bank 1, top side) |
| ピン 208 | I/O — User I/O pin (bank 1, top side) |
| ピン 209 | I/O — User I/O pin (bank 1, top side) |
| ピン 210 | I/O — User I/O pin (bank 1, top side) |
| ピン 211 | I/O — User I/O pin (bank 1, top side) |
| ピン 212 | I/O — User I/O pin (bank 1, top side) |
| ピン 213 | I/O — User I/O pin (bank 1, top side) |
| ピン 214 | I/O — User I/O pin (bank 1, top side) |
| ピン 215 | I/O — User I/O pin (bank 1, top side) |
| ピン 216 | I/O — User I/O pin (bank 1, top side) |
| ピン 217 | I/O — User I/O pin (bank 1, top side) |
| ピン 218 | I/O — User I/O pin (bank 1, top side) |
| ピン 219 | I/O — User I/O pin (bank 1, top side) |
| ピン 220 | I/O — User I/O pin (bank 1, top side) |
| ピン 221 | I/O — User I/O pin (bank 1, top side) |
| ピン 222 | I/O — User I/O pin (bank 1, top side) |
| ピン 223 | I/O — User I/O pin (bank 1, top side) |
| ピン 224 | I/O — User I/O pin (bank 1, top side) |
| ピン 225 | I/O — User I/O pin (bank 1, top side) |
| ピン 226 | I/O — User I/O pin (bank 1, top side) |
| ピン 227 | I/O — User I/O pin (bank 1, top side) |
| ピン 228 | I/O — User I/O pin (bank 1, top side) |
| ピン 229 | I/O — User I/O pin (bank 1, top side) |
| ピン 230 | I/O — User I/O pin (bank 1, top side) |
| ピン 231 | I/O — User I/O pin (bank 1, top side) |
| ピン 232 | I/O — User I/O pin (bank 1, top side) |
| ピン 233 | I/O — User I/O pin (bank 1, top side) |
| ピン 234 | I/O — User I/O pin (bank 1, top side) |
| ピン 235 | I/O — User I/O pin (bank 1, top side) |
| ピン 236 | I/O — User I/O pin (bank 1, top side) |
| ピン 237 | I/O — User I/O pin (bank 1, top side) |
| ピン 238 | I/O — User I/O pin (bank 1, top side) |
| ピン 239 | I/O — User I/O pin (bank 1, top side) |
| ピン 240 | GND — Ground (also exposed thermal pad on package bottom) |
主な用途
EPF10K50RI240-4N の用途: 6 件s: Legacy Telecom Interface Glue Logic, Industrial Control Bridging, Legacy ISA/PCI Peripheral Cards, DSP-to-Microcontroller Bridge / Co-processor, 5 V to 3.3 V Level Translation / Glue Logic Hub, Long-Life-Cycle Aerospace / Defense Sustainment.
Legacy Telecom Interface Glue Logic
The EPF10K50RI240-4N is well suited for legacy telecom interface glue logic where 5 V PCI-style signaling and MultiVolt I/O are still in service. Its 50K-gate capacity and 189 user I/Os are sufficient for bridging between TDM backplanes, T1/E1 framers, and HDLC controllers, while 20,480 logic elements accommodate wide bus-multiplexing and protocol state machines. Engineers can dedicate ~10 Embedded Array Blocks (EABs) of 2 Kbit SRAM each to dual-port FIFOs that smooth traffic between the telecom line and an upstream processor. The 240-RQFP footprint matches the original Altera reference designs, allowing direct retrofit into FLEX 10K service cards without PCB rework. Programming is performed with MAX+PLUS II, which is still the toolchain of record for installed telecom fleets worldwide.
おすすめ
Industrial Control Bridging
The EPF10K50RI240-4N's industrial -40 °C to 85 °C temperature range and 5 V PCI-compatible MultiVolt I/O make it a reliable bridge in industrial PLC backplanes. Its 189 user I/Os map directly to opto-isolated 24 V field I/O modules through level shifters, while the 5 V VCCINT rail is immune to the noisy 24 V supply transients that plague lower-voltage FPGAs. With 360 LABs and 20,480 logic elements, the device comfortably hosts parallel motor-control state machines, encoder quadrature decoders, and PROFIBUS/Modbus glue. The exposed thermal pad on the 240-RQFP package provides the heat dissipation needed for continuous industrial duty cycles. Designers retain a long-term software path in MAX+PLUS II without needing to re-train on Quartus.
おすすめ
Legacy ISA/PCI Peripheral Cards
The EPF10K50RI240-4N was a workhorse for PCI 2.1-compliant peripherals in the late 1990s and continues to populate legacy test, instrumentation, and data-acquisition cards. Its built-in PCI pull-up clamping diode and 5 V PCI-compliant I/O bank remove the need for external bus transceivers, while 189 user I/Os are sufficient for 32-bit PCI plus local bus expansion. The on-chip EABs serve as dual-port FIFOs that decouple PCI bursts from analog front-end data streams, and the 125 MHz internal frequency supports 33 MHz PCI timing with margin. Designers working on long-life-cycle medical, aerospace, and military programs can extend the supply of original boards using FLEX 10K drop-in variants.
おすすめ
DSP-to-Microcontroller Bridge / Co-processor
The EPF10K50RI240-4N is a natural choice for bridging a host microcontroller to a DSP co-processor in legacy embedded designs. The 50K-gate capacity accommodates FIFO-based data paths between an SHARC or TMS320 DSP and an 8051-class host, while the MultiVolt I/O allows direct connection to 3.3 V DSPs and 5 V microcontrollers without external level shifters. The 10 EABs (each 2 Kbit) supply the dual-port RAM that pipelines Q-format samples between algorithms, and the 189 user I/Os handle host parallel ports, DMA handshakes, and JTAG. The exposed pad on the 240-RQFP package provides the headroom needed when both DSP and host operate at full clock under sustained DSP load.
おすすめ
5 V to 3.3 V Level Translation / Glue Logic Hub
The EPF10K50RI240-4N's MultiVolt I/O interface is its standout feature for mixed-voltage board designs. By tying VCCIO to either 3.3 V or 5 V on a per-bank basis, each I/O bank can talk directly to the corresponding voltage domain without external level shifters, eliminating dozens of discrete parts. The 189 user I/Os and 50K-gate logic capacity make this part ideal as a central 'glue hub' that consolidates bus arbitration, chip-select generation, and interrupt routing between a 5 V microcontroller and 3.3 V peripherals such as SDRAM, flash, and ADCs. The exposed thermal pad supports the continuous switching activity of bus multiplexing without thermal derating.
おすすめ
Long-Life-Cycle Aerospace / Defense Sustainment
The EPF10K50RI240-4N remains in service in aerospace and defense systems certified under long-life programs that pre-date Cyclone and MAX families. Its 5 V VCCINT and 240-RQFP package match the original Altera reference designs that are now maintained as form-fit-function replacements. The 189 user I/Os are sufficient for MIL-STD-1553 databus interfaces, ARINC 429 transmitters, and legacy display controllers. Industrial temperature range (-40 °C to 85 °C) covers most avionics bays, and the exposed thermal pad provides the heat-spreading path needed for sealed chassis without forced-air cooling. For certified programs, FLEX 10K variants from the same lot are a drop-in substitution, easing obsolescence management while the certification paperwork remains valid.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: EPF10K50RI240-4N — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | EPF10K50RC240-4N | EPF10K50RC240-3 | EPF10K30RI240-4N | EPF10K50EQC240-3N | EPF10K100EQC240-3N |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | 240-RQFP (with Exposed Pad) | 240-RQFP - same | 240-RQFP - same | 240-RQFP - same | 240-RQFP - same | 240-RQFP - same |
| Family / Density | FLEX 10K, 50K gates / 2,880 cells | FLEX 10K, 50K gates / 2,880 cells | FLEX 10K, 50K gates / 2,880 cells | FLEX 10K, 30K gates / 1,728 cells (-40%) | FLEX 10KE, 50K gates / 2,880 cells | FLEX 10KE, 100K gates / 4,992 cells (+73%) |
| Speed Grade | -4 (slower) | -4 (same) | -3 (faster) | -4 (same) | -3 (faster) | -3 (faster) |
| Core Voltage (VCCINT) | 5 V | 5 V | 5 V | 5 V | 2.5 V (FLEX 10KE) | 2.5 V (FLEX 10KE) |
| I/O Voltage (VCCIO) | 3.3 V or 5 V MultiVolt | 3.3 V or 5 V MultiVolt | 3.3 V or 5 V MultiVolt | 3.3 V or 5 V MultiVolt | 2.5 V or 3.3 V MultiVolt | 2.5 V or 3.3 V MultiVolt |
| User I/Os | 189 | 189 | 189 | 189 (same package) | 189 | 189 |
| Temperature Range | Industrial -40C to +85C | Commercial 0C to +70C | Commercial 0C to +70C | Industrial -40C to +85C | Commercial 0C to +70C | Commercial 0C to +70C |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | NRND (near end of life) | NRND (near end of life) |
主な差別化要因
- Industrial temperature range on the same 240-RQFP footprint as commercial variants （vs EPF10K50RC240-4N)
- Lower-density drop-in alternative available for cost optimization （vs EPF10K30RI240-4N)
- MultiVolt I/O supports mixed-voltage designs without external level shifters （vs EPF10K50EQC240-3N (FLEX 10KE))
設計ノート
Estimated: the EPF10K50RI240-4N draws approximately 250-400 mA quiescent current on VCCINT at 5 V (1.25-2 W), scaling with toggle rate. Route VCCINT and VCCIO through wide power planes with bulk 100 uF + 10 uF + 0.1 uF ceramic decoupling at each pin. Separate VCCIO per bank: each MultiVolt bank can run at 3.3 V or 5 V independently, so use ferrite beads to isolate noisy banks from quiet ones. The exposed thermal pad MUST be soldered to a continuous ground plane for the datasheet's thermal resistance rating.
Use the Altera-supplied 240-RQFP land pattern from the Package Outlines section of the FLEX 10K datasheet. Place configuration EPROM (e.g., EPC2 or EPC16) within 100 mm of the FPGA to meet DCLK/DATA0 rise-time budgets. The MSEL0/MSEL1 pins select PS (passive serial), PPS, or JTAG configuration mode; add 10 kohm pull-ups to nCONFIG and 10 kohm pull-down to nSTATUS as recommended by the datasheet.
Do NOT attempt to program the EPF10K50RI240-4N with Quartus Prime - Quartus does not support the FLEX 10K family. Continue using MAX+PLUS II 10.23 baseline, which is the final toolchain release for FLEX 10K. The 'I' in the part number indicates industrial temperature range; verify that your chassis stays within -40C to +85C or the part may exhibit timing violations or reduced life. SRAM-based FPGAs lose configuration on power-down - always provide an external configuration PROM for production designs.
コンプライアンス情報
Compliance data not present in the verified web snippets. The -4N suffix historically indicates lead-free / Pb-free NiPdAu lead finish on the 240-RQFP package, but a written compliance certificate must be requested from the distributor for the specific lot. AEC-Q100 is not applicable because FPGAs are not automotive-qualified by Altera / Intel.
