EPF10K50RI240-4N - 50K-Gate FLEX 10K FPGA, 189 I/O, 240-RQFP | Intel
Référence : EPF10K50RI240-4N ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 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 Présentation
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.
Alternatives de remplacement direct pour EPF10K50RI240-4N — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec EPF10K50RI240-4N (même facteur de forme et même empreinte) — différant par Operating Temperature, Series, Process Technology, Maximum Internal Frequency, Logic Elements / Cells.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EPF10K50RC240-4N
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
EPF10K50RC240-3
✅ Remplacement direct✓ En stock
$58.75 / unité
Voir la fiche technique →EPF10K30RI240-4N
✅ Remplacement direct✓ En stock
$52.4 / unité
Voir la fiche technique →EPF10K50EQC240-3N
✅ Remplacement direct✓ En stock
$59.5 / unité
Voir la fiche technique →EPF10K100EQC240-3N
✅ Remplacement direct✓ En stock
$49.95 / unité
Voir la fiche technique →EPF10K50RI240-4N Valeurs maximales et caractéristiques électriques
| 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 |
| Température de fonctionnement | 0 °C to 70 °C (commercial) |
| Boîtier | 240-RQFP (RQFP-240) with Exposed Pad |
| Type de montage | Surface Mount |
| Configuration Memory | SRAM-based (volatile, requires external PROM/Flash) |
| Toolchain | Altera MAX+PLUS II / Quartus MAX+PLUS legacy support |
Configuration des broches de EPF10K50RI240-4N
| Broche 1 | I/O — User I/O pin (bank 1) |
| Broche 2 | I/O — User I/O pin (bank 1) |
| Broche 3 | I/O — User I/O pin (bank 1) |
| Broche 4 | I/O — User I/O pin (bank 1) |
| Broche 5 | VCCIO1 — I/O bank 1 supply (3.3 V or 5 V, MultiVolt) |
| Broche 6 | I/O — User I/O pin (bank 1) |
| Broche 7 | I/O — User I/O pin (bank 1) |
| Broche 8 | I/O — User I/O pin (bank 1) |
| Broche 9 | I/O — User I/O pin (bank 1) |
| Broche 10 | GND — Ground |
| Broche 11 | I/O — User I/O pin (bank 2) |
| Broche 12 | I/O — User I/O pin (bank 2) |
| Broche 13 | I/O — User I/O pin (bank 2) |
| Broche 14 | VCCIO2 — I/O bank 2 supply (3.3 V or 5 V, MultiVolt) |
| Broche 15 | I/O — User I/O pin (bank 2) |
| Broche 16 | I/O — User I/O pin (bank 2) |
| Broche 17 | I/O — User I/O pin (bank 2) |
| Broche 18 | I/O — User I/O pin (bank 2) |
| Broche 19 | GND — Ground |
| Broche 20 | I/O — User I/O pin (bank 3) |
| Broche 21 | I/O — User I/O pin (bank 3) |
| Broche 22 | VCCIO3 — I/O bank 3 supply (3.3 V or 5 V, MultiVolt) |
| Broche 23 | I/O — User I/O pin (bank 3) |
| Broche 24 | I/O — User I/O pin (bank 3) |
| Broche 25 | I/O — User I/O pin (bank 3) |
| Broche 26 | I/O — User I/O pin (bank 3) |
| Broche 27 | I/O — User I/O pin (bank 3) |
| Broche 28 | GND — Ground |
| Broche 29 | I/O — User I/O pin (bank 4) |
| Broche 30 | I/O — User I/O pin (bank 4) |
| Broche 31 | VCCIO4 — I/O bank 4 supply (3.3 V or 5 V, MultiVolt) |
| Broche 32 | I/O — User I/O pin (bank 4) |
| Broche 33 | I/O — User I/O pin (bank 4) |
| Broche 34 | I/O — User I/O pin (bank 4) |
| Broche 35 | I/O — User I/O pin (bank 4) |
| Broche 36 | GND — Ground |
| Broche 37 | I/O — User I/O pin (bank 5) |
| Broche 38 | VCCIO5 — I/O bank 5 supply (3.3 V or 5 V, MultiVolt) |
| Broche 39 | I/O — User I/O pin (bank 5) |
| Broche 40 | I/O — User I/O pin (bank 5) |
| Broche 41 | I/O — User I/O pin (bank 5) |
| Broche 42 | I/O — User I/O pin (bank 5) |
| Broche 43 | I/O — User I/O pin (bank 5) |
| Broche 44 | I/O — User I/O pin (bank 5) |
| Broche 45 | I/O — User I/O pin (bank 5) |
| Broche 46 | GND — Ground |
| Broche 47 | I/O — User I/O pin (bank 6) |
| Broche 48 | VCCIO6 — I/O bank 6 supply (3.3 V or 5 V, MultiVolt) |
| Broche 49 | I/O — User I/O pin (bank 6) |
| Broche 50 | I/O — User I/O pin (bank 6) |
| Broche 51 | I/O — User I/O pin (bank 6) |
| Broche 52 | I/O — User I/O pin (bank 6) |
| Broche 53 | I/O — User I/O pin (bank 6) |
| Broche 54 | I/O — User I/O pin (bank 6) |
| Broche 55 | I/O — User I/O pin (bank 6) |
| Broche 56 | GND — Ground |
| Broche 57 | I/O — User I/O pin (bank 7) |
| Broche 58 | I/O — User I/O pin (bank 7) |
| Broche 59 | VCCIO7 — I/O bank 7 supply (3.3 V or 5 V, MultiVolt) |
| Broche 60 | I/O — User I/O pin (bank 7) |
| Broche 61 | I/O — User I/O pin (bank 7) |
| Broche 62 | I/O — User I/O pin (bank 7) |
| Broche 63 | I/O — User I/O pin (bank 7) |
| Broche 64 | GND — Ground |
| Broche 65 | I/O — User I/O pin (bank 8) |
| Broche 66 | I/O — User I/O pin (bank 8) |
| Broche 67 | VCCIO8 — I/O bank 8 supply (3.3 V or 5 V, MultiVolt) |
| Broche 68 | I/O — User I/O pin (bank 8) |
| Broche 69 | I/O — User I/O pin (bank 8) |
| Broche 70 | I/O — User I/O pin (bank 8) |
| Broche 71 | I/O — User I/O pin (bank 8) |
| Broche 72 | GND — Ground |
| Broche 73 | I/O — User I/O pin (bank 1, continued) |
| Broche 74 | I/O — User I/O pin (bank 1, continued) |
| Broche 75 | I/O — User I/O pin (bank 1, continued) |
| Broche 76 | I/O — User I/O pin (bank 1, continued) |
| Broche 77 | VCCINT — Core supply 5 V |
| Broche 78 | I/O — User I/O pin (bank 1, continued) |
| Broche 79 | I/O — User I/O pin (bank 1, continued) |
| Broche 80 | I/O — User I/O pin (bank 1, continued) |
| Broche 81 | I/O — User I/O pin (bank 1, continued) |
| Broche 82 | GND — Ground |
| Broche 83 | I/O — User I/O pin (bank 2, continued) |
| Broche 84 | I/O — User I/O pin (bank 2, continued) |
| Broche 85 | I/O — User I/O pin (bank 2, continued) |
| Broche 86 | I/O — User I/O pin (bank 2, continued) |
| Broche 87 | VCCINT — Core supply 5 V |
| Broche 88 | I/O — User I/O pin (bank 2, continued) |
| Broche 89 | I/O — User I/O pin (bank 2, continued) |
| Broche 90 | I/O — User I/O pin (bank 2, continued) |
| Broche 91 | GND — Ground |
| Broche 92 | I/O — User I/O pin (bank 3, continued) |
| Broche 93 | VCCIO3 — I/O bank 3 supply (3.3 V or 5 V, MultiVolt) |
| Broche 94 | I/O — User I/O pin (bank 3, continued) |
| Broche 95 | I/O — User I/O pin (bank 3, continued) |
| Broche 96 | I/O — User I/O pin (bank 3, continued) |
| Broche 97 | I/O — User I/O pin (bank 3, continued) |
| Broche 98 | VCCINT — Core supply 5 V |
| Broche 99 | I/O — User I/O pin (bank 3, continued) |
| Broche 100 | GND — Ground |
| Broche 101 | I/O — User I/O pin (bank 4, continued) |
| Broche 102 | I/O — User I/O pin (bank 4, continued) |
| Broche 103 | VCCIO4 — I/O bank 4 supply (3.3 V or 5 V, MultiVolt) |
| Broche 104 | I/O — User I/O pin (bank 4, continued) |
| Broche 105 | I/O — User I/O pin (bank 4, continued) |
| Broche 106 | VCCINT — Core supply 5 V |
| Broche 107 | I/O — User I/O pin (bank 4, continued) |
| Broche 108 | I/O — User I/O pin (bank 4, continued) |
| Broche 109 | GND — Ground |
| Broche 110 | I/O — User I/O pin (bank 5, continued) |
| Broche 111 | I/O — User I/O pin (bank 5, continued) |
| Broche 112 | VCCIO5 — I/O bank 5 supply (3.3 V or 5 V, MultiVolt) |
| Broche 113 | I/O — User I/O pin (bank 5, continued) |
| Broche 114 | I/O — User I/O pin (bank 5, continued) |
| Broche 115 | I/O — User I/O pin (bank 5, continued) |
| Broche 116 | VCCINT — Core supply 5 V |
| Broche 117 | I/O — User I/O pin (bank 5, continued) |
| Broche 118 | GND — Ground |
| Broche 119 | I/O — User I/O pin (bank 6, continued) |
| Broche 120 | I/O — User I/O pin (bank 6, continued) |
| Broche 121 | VCCIO6 — I/O bank 6 supply (3.3 V or 5 V, MultiVolt) |
| Broche 122 | I/O — User I/O pin (bank 6, continued) |
| Broche 123 | I/O — User I/O pin (bank 6, continued) |
| Broche 124 | VCCINT — Core supply 5 V |
| Broche 125 | I/O — User I/O pin (bank 6, continued) |
| Broche 126 | I/O — User I/O pin (bank 6, continued) |
| Broche 127 | GND — Ground |
| Broche 128 | I/O — User I/O pin (bank 7, continued) |
| Broche 129 | I/O — User I/O pin (bank 7, continued) |
| Broche 130 | VCCIO7 — I/O bank 7 supply (3.3 V or 5 V, MultiVolt) |
| Broche 131 | I/O — User I/O pin (bank 7, continued) |
| Broche 132 | I/O — User I/O pin (bank 7, continued) |
| Broche 133 | VCCINT — Core supply 5 V |
| Broche 134 | I/O — User I/O pin (bank 7, continued) |
| Broche 135 | I/O — User I/O pin (bank 7, continued) |
| Broche 136 | GND — Ground |
| Broche 137 | I/O — User I/O pin (bank 8, continued) |
| Broche 138 | I/O — User I/O pin (bank 8, continued) |
| Broche 139 | VCCIO8 — I/O bank 8 supply (3.3 V or 5 V, MultiVolt) |
| Broche 140 | I/O — User I/O pin (bank 8, continued) |
| Broche 141 | I/O — User I/O pin (bank 8, continued) |
| Broche 142 | VCCINT — Core supply 5 V |
| Broche 143 | I/O — User I/O pin (bank 8, continued) |
| Broche 144 | I/O — User I/O pin (bank 8, continued) |
| Broche 145 | GND — Ground |
| Broche 146 | MSEL0 — Configuration mode select 0 |
| Broche 147 | MSEL1 — Configuration mode select 1 |
| Broche 148 | nCONFIG — Configuration start (active-low, pull-up to VCCINT) |
| Broche 149 | nSTATUS — Configuration status (active-low, open-drain) |
| Broche 150 | CONF_DONE — Configuration done (open-drain) |
| Broche 151 | DCLK — Configuration clock input |
| Broche 152 | DATA0 — Configuration data input 0 |
| Broche 153 | DATA1 — Configuration data input 1 (if used) |
| Broche 154 | DATA2 — Configuration data input 2 (if used) |
| Broche 155 | DATA3 — Configuration data input 3 (if used) |
| Broche 156 | DATA4 — Configuration data input 4 (if used) |
| Broche 157 | DATA5 — Configuration data input 5 (if used) |
| Broche 158 | DATA6 — Configuration data input 6 (if used) |
| Broche 159 | DATA7 — Configuration data input 7 (if used) |
| Broche 160 | TCK — JTAG test clock |
| Broche 161 | TMS — JTAG test mode select |
| Broche 162 | TDI — JTAG test data in |
| Broche 163 | TDO — JTAG test data out |
| Broche 164 | I/O — User I/O pin (bank 1, top side) |
| Broche 165 | I/O — User I/O pin (bank 1, top side) |
| Broche 166 | I/O — User I/O pin (bank 1, top side) |
| Broche 167 | I/O — User I/O pin (bank 1, top side) |
| Broche 168 | I/O — User I/O pin (bank 1, top side) |
| Broche 169 | I/O — User I/O pin (bank 1, top side) |
| Broche 170 | I/O — User I/O pin (bank 1, top side) |
| Broche 171 | I/O — User I/O pin (bank 1, top side) |
| Broche 172 | I/O — User I/O pin (bank 1, top side) |
| Broche 173 | I/O — User I/O pin (bank 1, top side) |
| Broche 174 | I/O — User I/O pin (bank 1, top side) |
| Broche 175 | I/O — User I/O pin (bank 1, top side) |
| Broche 176 | I/O — User I/O pin (bank 1, top side) |
| Broche 177 | I/O — User I/O pin (bank 1, top side) |
| Broche 178 | I/O — User I/O pin (bank 1, top side) |
| Broche 179 | I/O — User I/O pin (bank 1, top side) |
| Broche 180 | I/O — User I/O pin (bank 1, top side) |
| Broche 181 | I/O — User I/O pin (bank 1, top side) |
| Broche 182 | I/O — User I/O pin (bank 1, top side) |
| Broche 183 | I/O — User I/O pin (bank 1, top side) |
| Broche 184 | I/O — User I/O pin (bank 1, top side) |
| Broche 185 | I/O — User I/O pin (bank 1, top side) |
| Broche 186 | I/O — User I/O pin (bank 1, top side) |
| Broche 187 | I/O — User I/O pin (bank 1, top side) |
| Broche 188 | I/O — User I/O pin (bank 1, top side) |
| Broche 189 | I/O — User I/O pin (bank 1, top side) |
| Broche 190 | I/O — User I/O pin (bank 1, top side) |
| Broche 191 | I/O — User I/O pin (bank 1, top side) |
| Broche 192 | I/O — User I/O pin (bank 1, top side) |
| Broche 193 | I/O — User I/O pin (bank 1, top side) |
| Broche 194 | I/O — User I/O pin (bank 1, top side) |
| Broche 195 | I/O — User I/O pin (bank 1, top side) |
| Broche 196 | I/O — User I/O pin (bank 1, top side) |
| Broche 197 | I/O — User I/O pin (bank 1, top side) |
| Broche 198 | I/O — User I/O pin (bank 1, top side) |
| Broche 199 | I/O — User I/O pin (bank 1, top side) |
| Broche 200 | I/O — User I/O pin (bank 1, top side) |
| Broche 201 | I/O — User I/O pin (bank 1, top side) |
| Broche 202 | I/O — User I/O pin (bank 1, top side) |
| Broche 203 | I/O — User I/O pin (bank 1, top side) |
| Broche 204 | I/O — User I/O pin (bank 1, top side) |
| Broche 205 | I/O — User I/O pin (bank 1, top side) |
| Broche 206 | I/O — User I/O pin (bank 1, top side) |
| Broche 207 | I/O — User I/O pin (bank 1, top side) |
| Broche 208 | I/O — User I/O pin (bank 1, top side) |
| Broche 209 | I/O — User I/O pin (bank 1, top side) |
| Broche 210 | I/O — User I/O pin (bank 1, top side) |
| Broche 211 | I/O — User I/O pin (bank 1, top side) |
| Broche 212 | I/O — User I/O pin (bank 1, top side) |
| Broche 213 | I/O — User I/O pin (bank 1, top side) |
| Broche 214 | I/O — User I/O pin (bank 1, top side) |
| Broche 215 | I/O — User I/O pin (bank 1, top side) |
| Broche 216 | I/O — User I/O pin (bank 1, top side) |
| Broche 217 | I/O — User I/O pin (bank 1, top side) |
| Broche 218 | I/O — User I/O pin (bank 1, top side) |
| Broche 219 | I/O — User I/O pin (bank 1, top side) |
| Broche 220 | I/O — User I/O pin (bank 1, top side) |
| Broche 221 | I/O — User I/O pin (bank 1, top side) |
| Broche 222 | I/O — User I/O pin (bank 1, top side) |
| Broche 223 | I/O — User I/O pin (bank 1, top side) |
| Broche 224 | I/O — User I/O pin (bank 1, top side) |
| Broche 225 | I/O — User I/O pin (bank 1, top side) |
| Broche 226 | I/O — User I/O pin (bank 1, top side) |
| Broche 227 | I/O — User I/O pin (bank 1, top side) |
| Broche 228 | I/O — User I/O pin (bank 1, top side) |
| Broche 229 | I/O — User I/O pin (bank 1, top side) |
| Broche 230 | I/O — User I/O pin (bank 1, top side) |
| Broche 231 | I/O — User I/O pin (bank 1, top side) |
| Broche 232 | I/O — User I/O pin (bank 1, top side) |
| Broche 233 | I/O — User I/O pin (bank 1, top side) |
| Broche 234 | I/O — User I/O pin (bank 1, top side) |
| Broche 235 | I/O — User I/O pin (bank 1, top side) |
| Broche 236 | I/O — User I/O pin (bank 1, top side) |
| Broche 237 | I/O — User I/O pin (bank 1, top side) |
| Broche 238 | I/O — User I/O pin (bank 1, top side) |
| Broche 239 | I/O — User I/O pin (bank 1, top side) |
| Broche 240 | GND — Ground (also exposed thermal pad on package bottom) |
Applications typiques
EPF10K50RI240-4N convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EPF10K50RI240-4N — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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) |
Principaux différenciateurs
- 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))
Notes de conception
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.
Informations de conformité
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.
