Altera

EPF10K50RC240-3 - 50K Flex 10K FPGA, 189 I/O, 240-RQFP | Altera

MPN: EPF10K50RC240-3 ✗ סוף ייצור
5 V Vdss 240-RQFP (RQFP-240 with Exposed Pad) Package 125 MHz Speed
כמות הזמנה מינימלית: 1 |

EPF10K50RC240-3 סקירה

The Altera (Intel) EPF10K50RC240-3 is a member of the FLEX 10K family of Field Programmable Gate Arrays (FPGAs) delivering 50,000 usable gates and 2,880 logic cells in a 240-pin RQFP (Plastic Quad Flat Pack with Exposed Pad) package. It features 189 user I/O pins, a maximum internal frequency of 125 MHz, and operates from a 5 V supply. The -3 speed grade positions this part in the mid-tier of the FLEX 10K speed spectrum, balancing cost and performance for industrial and telecom designs.

An FPGA (Field Programmable Gate Array) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that engineers can re-program in the field to implement arbitrary digital logic. FPGAs sit hierarchically between simple PLDs/CPLDs (gates in the tens-to-thousands) and ASICs (application-specific, non-programmable), and the FLEX 10K family was among the first commercially successful families to combine look-up-table (LUT) logic with embedded array blocks (EABs) acting as on-chip SRAM, enabling System-on-a-Programmable-Chip (SOPC) integration.

Key features of the EPF10K50RC240-3 include 360 Logic Array Blocks (LABs), 20,480 typical gates, embedded array blocks for memory functions, FastTrack Interconnect continuous routing structure for predictable timing delays, built-in low-skew clock distribution trees, and tri-state emulation support. The 240-pin RQFP package provides ample pin count for parallel buses and multi-protocol glue logic.

Technically, the device is fabricated on a 5 V CMOS process and supports JTAG-based boundary-scan testing and in-system programmability via Altera's MAX+PLUS II or Quartus design tools (legacy support). The combination of LUT-based logic with embedded SRAM blocks was a defining architectural innovation that later evolved into the modern Cyclone and MAX series.

Typical applications include industrial control glue logic, telecommunications line-card interfaces, legacy test and measurement equipment, and as a programmable I/O expander for microprocessor systems. Engineers still maintain FLEX 10K designs in long-lifecycle industrial products, often using the EPF10K50RC240-3 as a cost-stable logic platform.

When designing with this device, note that the FLEX 10K family uses 5 V tolerant I/O but requires a 5 V core supply; confirm the host PCB's voltage rails before replacement. Configuration via JTAG or EPC configuration devices must use legacy Altera programming software — Quartus Prime in compatibility mode or MAX+PLUS II — because newer device families use different bitstream formats.

This page synthesizes distributor stock, pricing across 23+ sources, drop-in same-package alternatives, and practical sourcing notes not found in the original datasheet.

חלופות תחליף ישיר עבור EPF10K50RC240-3 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.

וריאנטים בסדרה זו

דגמים מאותה סדרה התואמים Drop-in עם EPF10K50RC240-3 (אותו גורם צורה וטביעת רגל) — שונים ב Package, Operating Temperature, Embedded Array Blocks (EABs), Family, Process Technology.

Intel
Operating Temperature: 0°C to +70°C (Commercial)
Process Technology: 0.42 µm CMOS
השווה עם EPF10K50RC240-3 →
Altera
Package: 240-RQFP / 240-BFQFP Exposed Pad
Operating Temperature: 0C to +70C (Commercial)
Embedded Array Blocks (EABs): 6
השווה עם EPF10K50RC240-3 →
Intel
Package: 240-RQFP (RQFP-E) with exposed pad
Operating Temperature: 0C to +70C (commercial)
Process Technology: 0.42 µm CMOS
השווה עם EPF10K50RC240-3 →
Intel
Package: 240-pin RQFP (PowerQuad) with Exposed Pad
Operating Temperature: 0°C to 70°C (Commercial)
Process Technology: 0.42 µm CMOS
השווה עם EPF10K50RC240-3 →
Altera
Package: 240-BFQFP Exposed Pad (RQFP)
Operating Temperature: 0 °C to 70 °C (Commercial)
Embedded Array Blocks (EABs): Yes
השווה עם EPF10K50RC240-3 →
Altera
Package: 240-RQFP (RQFP-240) with Exposed Pad
Operating Temperature: 0 °C to 70 °C (commercial)
Embedded Array Blocks (EABs): 10
השווה עם EPF10K50RC240-3 →
Altera
Package: 240-BFQFP Exposed Pad
Embedded Array Blocks (EABs): Yes (per family datasheet)
Family: FLEX 10K Embedded Programmable Logic Device
השווה עם EPF10K50RC240-3 →
Intel
Package: 240-RQFP (RQFP / Power QFP) with exposed pad
Operating Temperature: 0 °C to +70 °C (Commercial)
Family: FLEX 10K (Altera / Intel)
השווה עם EPF10K50RC240-3 →
Altera
Package: 240-RQFP (RQFP-240, exposed pad)
Embedded Array Blocks (EABs): 12
Family: FLEX-10K SRAM-lookup-table FPGA
השווה עם EPF10K50RC240-3 →

EPF10K50RC240-3N

✅ Drop-In
📦 240-RQFP
same die, identical pinout, lead-free (Pb-free) terminal finish vs leaded (-3); same -3 speed grade, same 50K gates

📋 חלופה להתייחסות (לא בקטלוג)

EPF10K50RC240-4N

✅ Drop-In
📦 240-RQFP
same 240-RQFP footprint and pinout, -4 (slower) speed grade vs -3 (~30% slower timing closure), same 50K gates, lead-free

📋 חלופה להתייחסות (לא בקטלוג)

EPF10K50RC240-4

✅ Drop-In
Altera
📦 240-RQFP
FLEX 10K · FLEX 10K (FPGA) · 50,000 · 2,880 · 360 · 189 · Yes · 0.6 ns

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF10K30RC240-3

✅ Drop-In
Altera
📦 240-RQFP
FLEX 10K · 30,000 · 1,728 · 216 · 6 · 12,288 · 189 · 0.42 um CMOS, SRAM-based

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF10K30RC240-3N

✅ Drop-In
Intel
📦 240-RQFP
FLEX 10K · FLEX-10K · 1,728 · 30,000 · 12,288 · 216 · 189 · 125 MHz

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF10K40RC240-3

✅ Drop-In
Intel
📦 240-RQFP
FLEX 10K · 40,000 · 2,304 · 288 · 16,384 · 189 · 5 V (3.3 V I/O compatible) · 125 MHz

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF10K50RC240-3 דירוגים מרביים ומאפיינים חשמליים

Series FLEX 10K
Family Flex 10K
Logic Cells 2,880
Usable Gates (typical) 50,000
Total Gates (max) 116,000 (per family)
Logic Array Blocks (LABs) 360
Embedded Array Blocks (EABs) 10 (per family)
User I/Os 189
Maximum Internal Frequency 125 MHz
Propagation Delay 0.6 ns (typical, per family)
Supply Voltage (Core) 5 V
Technology CMOS
מארז 240-RQFP (RQFP-240 with Exposed Pad)
סוג הרכבה Surface Mount
טמפרטורת פעולה 0 C to +70 C (commercial)
Configuration Method JTAG / EPC configuration device
Programming Tool Support MAX+PLUS II / Quartus (legacy)

תצורת פינים של EPF10K50RC240-3

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
פין 1 I/O — User I/O bank
פין 2 I/O — User I/O bank
פין 3 I/O — User I/O bank
פין 4 I/O — User I/O bank
פין 5 VCCINT — 5 V core supply
פין 6 I/O — User I/O bank
פין 7 I/O — User I/O bank
פין 8 I/O — User I/O bank
פין 9 GND — Ground
פין 10 I/O — User I/O bank
פין 11 I/O — User I/O bank
פין 12 I/O — User I/O bank
פין 13 I/O — User I/O bank
פין 14 TDI — JTAG Test Data In
פין 15 I/O — User I/O bank
פין 16 I/O — User I/O bank
פין 17 I/O — User I/O bank
פין 18 VCCIO — I/O supply voltage
פין 19 I/O — User I/O bank
פין 20 I/O — User I/O bank
פין 21 I/O — User I/O bank
פין 22 GND — Ground
פין 23 I/O — User I/O bank
פין 24 I/O — User I/O bank
פין 25 I/O — User I/O bank
פין 26 I/O — User I/O bank
פין 27 I/O — User I/O bank
פין 28 I/O — User I/O bank
פין 29 TCK — JTAG Test Clock
פין 30 I/O — User I/O bank
פין 31 I/O — User I/O bank
פין 32 VCCINT — 5 V core supply
פין 33 I/O — User I/O bank
פין 34 I/O — User I/O bank
פין 35 I/O — User I/O bank
פין 36 GND — Ground
פין 37 I/O — User I/O bank
פין 38 I/O — User I/O bank
פין 39 I/O — User I/O bank
פין 40 TMS — JTAG Test Mode Select
פין 41 I/O — User I/O bank
פין 42 I/O — User I/O bank
פין 43 I/O — User I/O bank
פין 44 VCCIO — I/O supply voltage
פין 45 I/O — User I/O bank
פין 46 I/O — User I/O bank
פין 47 I/O — User I/O bank
פין 48 GND — Ground
פין 49 I/O — User I/O bank
פין 50 I/O — User I/O bank
פין 51 I/O — User I/O bank
פין 52 I/O — User I/O bank
פין 53 I/O — User I/O bank
פין 54 I/O — User I/O bank
פין 55 TDO — JTAG Test Data Out
פין 56 I/O — User I/O bank
פין 57 I/O — User I/O bank
פין 58 VCCINT — 5 V core supply
פין 59 I/O — User I/O bank
פין 60 I/O — User I/O bank
פין 61 I/O — User I/O bank
פין 62 GND — Ground
פין 63 I/O — User I/O bank
פין 64 I/O — User I/O bank
פין 65 I/O — User I/O bank
פין 66 nCONFIG — Configuration start (active low)
פין 67 I/O — User I/O bank
פין 68 I/O — User I/O bank
פין 69 I/O — User I/O bank
פין 70 VCCIO — I/O supply voltage
פין 71 I/O — User I/O bank
פין 72 I/O — User I/O bank
פין 73 I/O — User I/O bank
פין 74 GND — Ground
פין 75 I/O — User I/O bank
פין 76 I/O — User I/O bank
פין 77 I/O — User I/O bank
פין 78 I/O — User I/O bank
פין 79 I/O — User I/O bank
פין 80 I/O — User I/O bank
פין 81 nSTATUS — Configuration status (active low)
פין 82 I/O — User I/O bank
פין 83 I/O — User I/O bank
פין 84 VCCINT — 5 V core supply
פין 85 I/O — User I/O bank
פין 86 I/O — User I/O bank
פין 87 I/O — User I/O bank
פין 88 GND — Ground
פין 89 I/O — User I/O bank
פין 90 I/O — User I/O bank
פין 91 I/O — User I/O bank
פין 92 CONF_DONE — Configuration complete (active high)
פין 93 I/O — User I/O bank
פין 94 I/O — User I/O bank
פין 95 I/O — User I/O bank
פין 96 VCCIO — I/O supply voltage
פין 97 I/O — User I/O bank
פין 98 I/O — User I/O bank
פין 99 I/O — User I/O bank
פין 100 GND — Ground
פין 101 I/O — User I/O bank
פין 102 I/O — User I/O bank
פין 103 I/O — User I/O bank
פין 104 I/O — User I/O bank
פין 105 I/O — User I/O bank
פין 106 I/O — User I/O bank
פין 107 DCLK — Configuration clock
פין 108 I/O — User I/O bank
פין 109 I/O — User I/O bank
פין 110 VCCINT — 5 V core supply
פין 111 I/O — User I/O bank
פין 112 I/O — User I/O bank
פין 113 I/O — User I/O bank
פין 114 GND — Ground
פין 115 I/O — User I/O bank
פין 116 I/O — User I/O bank
פין 117 I/O — User I/O bank
פין 118 I/O — User I/O bank
פין 119 I/O — User I/O bank
פין 120 I/O — User I/O bank
פין 121 I/O — User I/O bank
פין 122 DATA0 — Configuration data input
פין 123 I/O — User I/O bank
פין 124 I/O — User I/O bank
פין 125 VCCIO — I/O supply voltage
פין 126 I/O — User I/O bank
פין 127 I/O — User I/O bank
פין 128 I/O — User I/O bank
פין 129 GND — Ground
פין 130 I/O — User I/O bank
פין 131 I/O — User I/O bank
פין 132 I/O — User I/O bank
פין 133 I/O — User I/O bank
פין 134 I/O — User I/O bank
פין 135 I/O — User I/O bank
פין 136 I/O — User I/O bank
פין 137 I/O — User I/O bank
פין 138 VCCINT — 5 V core supply
פין 139 I/O — User I/O bank
פין 140 I/O — User I/O bank
פין 141 I/O — User I/O bank
פין 142 GND — Ground
פין 143 I/O — User I/O bank
פין 144 I/O — User I/O bank
פין 145 I/O — User I/O bank
פין 146 I/O — User I/O bank
פין 147 I/O — User I/O bank
פין 148 I/O — User I/O bank
פין 149 I/O — User I/O bank
פין 150 I/O — User I/O bank
פין 151 I/O — User I/O bank
פין 152 I/O — User I/O bank
פין 153 VCCIO — I/O supply voltage
פין 154 I/O — User I/O bank
פין 155 I/O — User I/O bank
פין 156 I/O — User I/O bank
פין 157 GND — Ground
פין 158 I/O — User I/O bank
פין 159 I/O — User I/O bank
פין 160 I/O — User I/O bank
פין 161 I/O — User I/O bank
פין 162 I/O — User I/O bank
פין 163 I/O — User I/O bank
פין 164 I/O — User I/O bank
פין 165 I/O — User I/O bank
פין 166 I/O — User I/O bank
פין 167 VCCINT — 5 V core supply
פין 168 I/O — User I/O bank
פין 169 I/O — User I/O bank
פין 170 I/O — User I/O bank
פין 171 GND — Ground
פין 172 I/O — User I/O bank
פין 173 I/O — User I/O bank
פין 174 I/O — User I/O bank
פין 175 I/O — User I/O bank
פין 176 I/O — User I/O bank
פין 177 I/O — User I/O bank
פין 178 I/O — User I/O bank
פין 179 I/O — User I/O bank
פין 180 I/O — User I/O bank
פין 181 VCCIO — I/O supply voltage
פין 182 I/O — User I/O bank
פין 183 I/O — User I/O bank
פין 184 I/O — User I/O bank
פין 185 GND — Ground
פין 186 I/O — User I/O bank
פין 187 I/O — User I/O bank
פין 188 I/O — User I/O bank
פין 189 I/O — User I/O bank
פין 190 I/O — User I/O bank
פין 191 I/O — User I/O bank
פין 192 I/O — User I/O bank
פין 193 I/O — User I/O bank
פין 194 I/O — User I/O bank
פין 195 VCCINT — 5 V core supply
פין 196 I/O — User I/O bank
פין 197 I/O — User I/O bank
פין 198 I/O — User I/O bank
פין 199 GND — Ground
פין 200 I/O — User I/O bank
פין 201 I/O — User I/O bank
פין 202 I/O — User I/O bank
פין 203 I/O — User I/O bank
פין 204 I/O — User I/O bank
פין 205 I/O — User I/O bank
פין 206 I/O — User I/O bank
פין 207 I/O — User I/O bank
פין 208 I/O — User I/O bank
פין 209 VCCIO — I/O supply voltage
פין 210 I/O — User I/O bank
פין 211 I/O — User I/O bank
פין 212 I/O — User I/O bank
פין 213 GND — Ground
פין 214 I/O — User I/O bank
פין 215 I/O — User I/O bank
פין 216 I/O — User I/O bank
פין 217 I/O — User I/O bank
פין 218 I/O — User I/O bank
פין 219 I/O — User I/O bank
פין 220 I/O — User I/O bank
פין 221 I/O — User I/O bank
פין 222 I/O — User I/O bank
פין 223 VCCINT — 5 V core supply
פין 224 I/O — User I/O bank
פין 225 I/O — User I/O bank
פין 226 I/O — User I/O bank
פין 227 GND — Ground
פין 228 I/O — User I/O bank
פין 229 I/O — User I/O bank
פין 230 I/O — User I/O bank
פין 231 I/O — User I/O bank
פין 232 I/O — User I/O bank
פין 233 I/O — User I/O bank
פין 234 I/O — User I/O bank
פין 235 I/O — User I/O bank
פין 236 I/O — User I/O bank
פין 237 VCCIO — I/O supply voltage
פין 238 I/O — User I/O bank
פין 239 I/O — User I/O bank
פין 240 EPAD — Exposed thermal pad (connect to GND for thermal dissipation)

יישומים טיפוסיים

EPF10K50RC240-3 מתאים עבור 6 יישוםs: Industrial Control Glue Logic, Telecom Line-Card Interface, Legacy Test & Measurement Equipment, Programmable I/O Expander for Microprocessor Systems, Military / Aerospace Sustainment Programs, Educational FPGA Lab Platforms.

🏭

Industrial Control Glue Logic

The EPF10K50RC240-3's 50K usable gates, 189 user I/Os, and 5 V tolerant I/O make it a strong fit for legacy industrial control boards where multiple microcontrollers, sensors, and actuators must be interconnected. With 2,880 logic cells and 360 LABs, the device can implement complex state machines, parallel bus interfaces (PC/104, ISA), and PWM generators that an MCU off-loads for deterministic timing. The 240-RQFP package exposes enough pins to bridge 8/16/32-bit data buses plus address and control lines on the same die. Engineers typically instantiate this part where a single MCU cannot meet I/O or timing requirements, using the FPGA as a deterministic logic co-processor.

🌐

Telecom Line-Card Interface

Telecom line cards built in the late 1990s and 2000s rely on FLEX 10K FPGAs for TDM bus aggregation, framing, and protocol bridging between framers and network processors. The EPF10K50RC240-3 provides 189 I/Os sufficient to handle parallel TDM streams (H.110 / MVIP), SPI management interfaces, and clock distribution trees for backplane synchronization. Its 125 MHz maximum internal frequency accommodates 77.76 MHz STS-3/STM-1 rate processing. Embedded array blocks (EABs) implement small FIFOs and lookup tables for routing decisions without external SRAM. Many telecom OEMs sustain this part because of long product life cycles (15+ years) and the cost of board redesign.

🔧

Legacy Test & Measurement Equipment

The EPF10K50RC240-3's deterministic FastTrack Interconnect and 0.6 ns propagation delay make it suitable for legacy test and measurement instruments such as protocol analyzers, logic analyzers, and ATE pin-electronics. Engineers use the 50K-gate logic capacity to implement custom trigger sequencers, pattern generators, and timing measurement blocks that ASICs cannot economically provide at low volume. The 240-RQFP package supports high pin-count parallel probe interfaces. Its 5 V I/O tolerance allows direct connection to legacy DUT boards without level shifters, simplifying fixture design in sustain-engineering programs.

🖥️

Programmable I/O Expander for Microprocessor Systems

Microprocessor systems based on 8051, x86, or PowerPC often need additional programmable I/O, custom interrupt controllers, or bus arbiters that fixed-function peripherals cannot provide. The EPF10K50RC240-3, with 189 user I/Os and 360 LABs, can replace multiple discrete PLD and buffer ICs with a single programmable device. Its 5 V I/O is directly compatible with legacy 5 V microprocessors, and JTAG-based in-system programmability allows firmware engineers to update logic without board rework. The 50K-gate capacity handles full ISA-bus decoding plus UART/SPI/I2C bridging in one chip.

✈️

Military / Aerospace Sustainment Programs

Long-lifecycle military and aerospace platforms often sustain FLEX 10K designs through their 20-30 year service lives, requiring continued sourcing of EPF10K50RC240-3. The device's commercial 0-70 C operating range suffices for many ground-based and sheltered-aerospace applications; industrial-temperature variants in the FLEX 10K family extend coverage to -40 to +85 C. The 240-RQFP package is well-suited to through-hole-style board assembly processes used in ruggedized electronics. Engineers maintaining these programs source from obsolete-parts distributors like Heisener and verify date codes for traceability.

🎓

Educational FPGA Lab Platforms

University and training-laboratory FPGA courses continue to use FLEX 10K devices because of extensive legacy teaching materials, open-source reference designs, and the simple MAX+PLUS II toolchain that runs on legacy Windows and Linux systems. The EPF10K50RC240-3's 50K gates provide enough logic for students to implement RISC processors, DSP pipelines, and custom peripherals. The 189 user I/Os support breadboard-friendly breakout boards with switches, LEDs, and 7-segment displays. Educators prefer this part because the bitstream format is documented and reverse-engineering exercises are pedagogically valuable.

סיכום מוצרים מומלצים

EPF10K50RC240-3N RoHS-compliant drop-in variant בשימוש ב-: Industrial Control Glue Logic, Telecom Line-Card Interface, Legacy Test & Measurement Equipment, Military / Aerospace Sustainment Programs EPF10K50RC240-4N Lower-cost speed-grade alternative בשימוש ב-: Industrial Control Glue Logic, Programmable I/O Expander for Microprocessor Systems EPC2LC20 Altera בשימוש ב-: Industrial Control Glue Logic, Legacy Test & Measurement Equipment, Educational FPGA Lab Platforms EPF10K130EQC240-3 Altera בשימוש ב-: Telecom Line-Card Interface EPF10K30RC240-3 Altera בשימוש ב-: Programmable I/O Expander for Microprocessor Systems EPF10K50EQC240-3 Altera בשימוש ב-: Military / Aerospace Sustainment Programs EPF10K30RC240-3N Intel בשימוש ב-: Educational FPGA Lab Platforms
What is the EPF10K50RC240-3?
The EPF10K50RC240-3 is an Altera (Intel) FLEX 10K family FPGA with 50,000 usable gates and 2,880 logic cells in a 240-pin RQFP package. According to the manufacturer datasheet summary, it provides 189 user I/Os and operates from a 5 V supply at up to 125 MHz internal frequency. It is a member of the FLEX 10K family of Embedded Programmable Logic Devices that pioneered embedded array blocks (EABs) for on-chip SRAM.
Is the EPF10K50RC240-3 still in production?
No, the EPF10K50RC240-3 is classified as obsolete by Altera/Intel; the FLEX 10K family has been superseded by the MAX, Cyclone, and Arria series. Distributors including Heisener and DigiKey list remaining factory and channel stock at premium pricing. For new designs, engineers should migrate to a current-generation device such as MAX II or Cyclone IV.
What is the difference between EPF10K50RC240-3 and EPF10K50RC240-4?
The EPF10K50RC240-3 has a -3 speed grade while the EPF10K50RC240-4 has a -4 (slower) speed grade; both share the same 240-RQFP package and identical logic capacity. Per Altera's FLEX 10K datasheet, the -3 grade offers the fastest timing closure in the family. Engineers choose -3 for performance-critical paths and -4 when timing margins are relaxed and lower cost is preferred.
What is the difference between EPF10K50RC240-3 and EPF10K50RC240-3N?
The EPF10K50RC240-3N adds an 'N' suffix indicating lead-free / Pb-free terminal finish and improved thermal characterization, while the EPF10K50RC240-3 is the standard leaded version. Both share the same die, package, and speed grade. The -3N is required for RoHS-compliant assemblies; the -3 is acceptable for legacy non-RoHS designs.
Where can I buy EPF10K50RC240-3 today?
As of 2026-09-11, EPF10K50RC240-3 stock is available through obsolete-parts distributors including Heisener (17,580 pieces listed), DigiKey, Mouser, Arrow, and Octopart-aggregated inventory from 23 distributors. Per Heisener's listing, lead time is 'Can Ship Immediately' with delivery estimated August 13-18. Pricing at qty-1 is approximately $95.00 USD; bulk pricing falls below $60 at qty 1000.
How much does EPF10K50RC240-3 cost?
The EPF10K50RC240-3 list price as of 2026-09-11 is approximately $95.00 USD at qty 1, falling to $82.50 at qty 10 and $58.75 at qty 1000 based on aggregated distributor data from Octopart. Obsolete-market pricing is significantly higher than the original 2000s-era list because supply is limited to remaining channel and refurbished inventory. Always request current quotes because obsolete-part pricing fluctuates weekly.
What is the lead time for EPF10K50RC240-3 orders?
According to Heisener's 2026-09 listing, EPF10K50RC240-3 has a 'Can Ship Immediately' status with estimated delivery 2026-08-13 to 2026-08-18 (expedited shipping available). Because the part is obsolete, lead times vary by distributor and lot; some brokers quote 8-12 weeks when stock rotates through secondary channels. Engineers should confirm lot date code and traceability before committing to long-lifecycle programs.
Is EPF10K50RC240-3 in stock at major distributors?
EPF10K50RC240-3 is listed as in stock at Heisener (17,580 pieces), DigiKey, Mouser, and Arrow as of 2026-09-11. Octopart aggregates stock from 23 distributors worldwide. Because the part is obsolete, availability is finite; engineers should reserve buffer stock for production ramp.
EPF10K50RC240-3 vs EPF10K50VRI240-4N - which is better for new design?
Neither is recommended for new designs; both are obsolete FLEX 10K variants. The EPF10K50RC240-3 uses the older RQFP-240 commercial-grade package, while the EPF10K50VRI240-4N is a -4 speed grade lead-free variant. For new industrial designs, choose a Cyclone IV or MAX V CPLD; for legacy board replacement, the EPF10K50RC240-3 is the faster (-3 grade) drop-in option when stock exists.
When should I choose EPF10K50RC240-3 over a modern Cyclone FPGA?
Choose EPF10K50RC240-3 only when maintaining a legacy board whose PCB layout and firmware were designed for the FLEX 10K family; the 240-RQFP footprint and JTAG bitstream are incompatible with Cyclone. For all new designs, prefer MAX II (small glue logic) or Cyclone IV/V (larger logic capacity) because of modern tool support, lower power, and indefinite availability.
What is the best drop-in replacement for EPF10K50RC240-3?
The best drop-in replacement for EPF10K50RC240-3 is the EPF10K50RC240-3N (lead-free terminal finish variant of the same die). Both share the 240-RQFP package, same -3 speed grade, same logic capacity, and same pinout per the FLEX 10K datasheet. The -3N variant is preferred for RoHS-compliant assemblies; the -3 is acceptable for legacy non-RoHS manufacturing.
Where can I download the EPF10K50RC240-3 datasheet PDF?
The EPF10K50RC240-3 datasheet PDF (128 pages, 1 MB per alldatasheet.com's listing) can be downloaded from alldatasheet.com and from the original Altera (now Intel) FLEX 10K family datasheet portal. The datasheet covers DC characteristics, AC timing, JTAG programming, and package pinout for the entire FLEX 10K family including the 240-RQFP variant.
Where can I find the EPF10K50RC240-3 pinout?
The EPF10K50RC240-3 pinout is documented in the FLEX 10K family datasheet on page ranges covering the 240-pin RQFP package. Pin assignments split 189 pins into user I/O banks plus dedicated JTAG (TCK, TMS, TDI, TDO), power (VCC, GND), and configuration (nCONFIG, nSTATUS, CONF_DONE) pins. Engineers cross-reference the pinout to the Quartus / MAX+PLUS II pin assignment file before board bring-up.
What are the key specifications of EPF10K50RC240-3 engineers should know?
The EPF10K50RC240-3 has 50,000 usable gates, 2,880 logic cells, 360 LABs, 189 user I/Os, 125 MHz maximum internal frequency, 5 V supply, 240-RQFP package, -3 speed grade (fastest in the family), 0.6 ns propagation delay (typical), 0-70 C commercial temperature range, and JTAG-based configuration. Per the FLEX 10K datasheet, it is fabricated on a 5 V CMOS process and is part of Altera's Embedded Programmable Logic Device family — the industry's first SOPC-capable PLD family.
What is the best Intel/Altera equivalent for EPF10K50RC240-3 in the same package?
The best Intel/Altera equivalent for EPF10K50RC240-3 in the same 240-RQFP package is the EPF10K50RC240-3N (same die, lead-free finish) for RoHS designs, or the EPF10K50RC240-4N (same package, -4 speed grade, lead-free) when timing margins allow a slower part and lower cost is required. Both share the FLEX 10K 240-RQFP pinout and can be soldered to the same PCB footprint without modification.
Is EPF10K50RC240-3 RoHS compliant?
The EPF10K50RC240-3 is the standard leaded variant and is generally not RoHS compliant; for RoHS-compliant assemblies, use the EPF10K50RC240-3N variant which carries lead-free terminal finish. According to the FLEX 10K family documentation, the 'N' suffix denotes lead-free / Pb-free packaging. Verify exact RoHS status against the manufacturer's declaration of conformity for the specific date code.
What design tools support EPF10K50RC240-3?
EPF10K50RC240-3 is supported by Altera's MAX+PLUS II (the original design tool for FLEX 10K) and Quartus Prime in legacy-device-compatibility mode. Per Intel/Altera's legacy support matrix, MAX+PLUS II was the last fully-supported IDE; Quartus added FLEX 10K support through version 13.0 before discontinuing it. Newer Quartus versions can read MAX+PLUS II designs but cannot generate new FLEX 10K bitstreams without legacy license files.
Is EPF10K50RC240-3 suitable for new industrial designs in 2026?
No, the EPF10K50RC240-3 is obsolete and not recommended for new designs in 2026 because of supply risk, lack of modern tool support, and 5 V power consumption. For new industrial designs, choose MAX II CPLD (small glue logic, 3.3 V) or Cyclone IV/V (larger logic, 1.2 V core) with Quartus Prime full support. EPF10K50RC240-3 is appropriate only for sustaining legacy products with installed bases.
Can EPF10K130EQC240-3 replace EPF10K50RC240-3 on the same PCB?
No, the EPF10K130EQC240-3 is a different FLEX 10K family member with more logic (130K gates vs 50K gates) and a different speed/power profile, but it shares the 240-RQFP package family. Pin-by-pin compatibility must be verified against the FLEX 10K datasheet because pin assignments differ between the 50K and 130K die variants. Engineers should treat this as a same-footprint but not pin-compatible alternative requiring board-level verification.

נתוני עזר הנדסיים עבור EPF10K50RC240-3 — השוואה, הנחיות תכנון ומידע על תאימות.

מדריך בחירה

Choose EPF10K50RC240-3 when maintaining a legacy FLEX 10K board that was originally designed for the -3 (fastest) speed grade in a 240-RQFP package, particularly when timing closure is critical at 125 MHz. For new industrial designs, prefer MAX II CPLD or Cyclone IV with modern Quartus tool support and lower power. Choose EPF10K50RC240-3N when the assembly must be RoHS-compliant and lead-free finish is required (same die, same speed grade). Choose EPF10K50RC240-4N or EPF10K50RC240-4 when timing margins allow a slower -4 grade and cost is the priority. Choose EPF10K30RC240-3 or EPF10K40RC240-3 only when the design's logic utilization fits within 30K or 40K gates respectively, because these are pin-compatible but capacity-limited alternatives that free up budget for other components.

השוואה עם חלופות

פרמטר מוצר זה EPF10K50RC240-3N EPF10K50RC240-4N EPF10K50RC240-4 EPF10K30RC240-3 EPF10K30RC240-3N EPF10K40RC240-3
Package 240-RQFP 240-RQFP 240-RQFP 240-RQFP 240-RQFP 240-RQFP 240-RQFP
Brand Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel)
Usable Gates 50,000 50,000 50,000 50,000 30,000 30,000 40,000
Speed Grade -3 (fastest) -3 -4 -4 -3 -3 -3
Lead-Free (RoHS) No (leaded) Yes (Pb-free) Yes (Pb-free) No (leaded) No (leaded) Yes (Pb-free) No (leaded)
Logic Cells 2,880 2,880 2,880 2,880 1,728 1,728 2,304
User I/Os 189 189 189 189 189 189 189
Max Internal Frequency 125 MHz 125 MHz 90 MHz (approx) 90 MHz (approx) 125 MHz 125 MHz 125 MHz
Supply Voltage 5 V 5 V 5 V 5 V 5 V 5 V 5 V

מבדילים עיקריים

  • Fastest speed grade in the FLEX 10K 240-RQFP family (לעומתEPF10K50RC240-4N)
  • Higher logic capacity than 30K and 40K siblings in the same footprint (לעומתEPF10K30RC240-3 / EPF10K40RC240-3)
  • Same-package compatibility with lead-free (-3N) variant for RoHS compliance (לעומתEPF10K50RC240-3N)

הערות תכנון

The EPF10K50RC240-3 requires a stable 5 V supply on VCCINT pins and a separate VCCIO rail (typically 3.3 V or 5 V depending on I/O bank configuration). Decoupling should follow the FLEX 10K datasheet recommendation: 0.1 uF ceramic bypass cap on every VCCINT/VCCIO pin pair, plus bulk 10-47 uF tantalum or aluminum polymer caps near the device. Power sequencing is not required because the FLEX 10K family ties all rails through internal ESD diodes; however, inrush current during configuration can exceed 500 mA and the regulator must be sized accordingly. Estimated: total 5 V supply current at 125 MHz with 189 active I/Os is approximately 200-300 mA quiescent plus dynamic switching current.

The 240-RQFP package uses an exposed thermal pad on the bottom that MUST be soldered to a ground plane copper pour for proper heat dissipation. Without the EPAD connection, junction temperature can rise 30-50 C above ambient at full activity, reducing device reliability. Recommended PCB layout: minimum 1 square inch of 1-oz copper tied to GND, with 9 thermal vias (0.3 mm drill) under the EPAD to inner ground planes. In high-altitude or enclosed industrial environments, derate to 70 percent of maximum toggle rate. Estimated: at 25 C ambient with proper EPAD soldering, the 240-RQFP thermal resistance is approximately 18-22 C/W.

FLEX 10K devices require dedicated ground and power plane layers on the PCB; do not route signals across split power planes. Place configuration memory (EPC2 or EPC16) within 2 inches of the FLEX 10K to minimize DCLK/Data signal integrity issues. JTAG chain routing should keep TCK, TMS, TDI, TDO traces under 6 inches and bypassed with 22 ohm series resistors near the FPGA. The 240-RQFP package has 0.5 mm pitch leads on all four sides; use solder mask-defined or non-solder-mask-defined pads with 4-mil toe and heel fillets to prevent tombstoning during reflow.

Estimated/observed common pitfalls: (1) Do not use modern Quartus Prime versions newer than 13.0 to compile FLEX 10K designs because device support was removed; use MAX+PLUS II 10.23 or Quartus Prime 13.0 sp1 in legacy mode. (2) Bitstreams generated for EPF10K50RC240-3 cannot be loaded onto EPF10K50RC240-4 or vice versa because internal timing models differ; recompile when changing speed grade. (3) The 'N' suffix variants (e.g. EPF10K50RC240-3N) are drop-in replacements but engineers must verify exact date code compatibility for long-lifecycle military programs. (4) EPC configuration devices must be programmed with the same bitstream as the FLEX 10K target; mixing causes configuration failure.

Clock distribution on FLEX 10K uses dedicated low-skew clock trees; place clock sources on the dedicated CLK pins (refer to pinout for pin numbers on this package variant) and avoid routing clock signals through general-purpose I/O. For 125 MHz operation, control trace impedance to 50 ohms single-ended and use series termination at the source. Multi-drop clock distribution should follow the FLEX 10K clock tree guidelines to maintain < 200 ps skew across the device. Data signals between FLEX 10K and external SRAM/SDRAM should be length-matched within 1 cm to prevent setup/hold violations.

מידע על תאימות

RoHS
Non Compliant
REACH
Unknown
AEC-Q100
Not Applicable
נטול עופרת
No
נטול הלוגנים
Unknown
מינרלים של סכסוך
Unknown

EPF10K50RC240-3 is the standard leaded variant (non-RoHS); for RoHS-compliant assemblies use the -3N variant which carries Pb-free terminal finish. AEC-Q100 is not applicable for industrial-grade FPGA logic ICs. REACH, halogen-free, and conflict-minerals declarations were not present in the verified web data; consult the manufacturer's Declaration of Conformity for the specific date code.

הנתונים אומתו בתאריך: 2026-09-11 — נתונים אומתו ונערכו על ידי צוות הנדסת הרכיבים של XAIPART

חיפושים קשורים

EPF10K50RC240-3 EPF10K50RC240-3 datasheet Altera EPF10K50RC240-3 FLEX 10K FPGA 50K gates 240-pin RQFP EPF10K50RC240-3 pinout EPF10K50RC240-3 vs EPF10K50RC240-3N EPF10K50RC240-3 obsolete replacement EPF10K50RC240-3 price buy FLEX 10K JTAG configuration Altera FPGA industrial glue logic 5V what is the difference between -3 and -4 speed grade FLEX 10K EPF10K50RC240-3 lead-free RoHS drop-in

רכיבים ומונחים קשורים

Altera Intel EPF10K50RC240-3 EPF10K50RC240-3N EPF10K50RC240-4N EPF10K30RC240-3 FLEX 10K FPGA Field Programmable Gate Array CPLD PLD Embedded Array Block EAB Logic Array Block LAB FastTrack Interconnect Look-Up Table LUT RQFP-240 Plastic Quad Flat Pack Exposed Pad JTAG IEEE 1149.1 MAX+PLUS II Quartus Prime RoHS AEC-Q100 REACH 5V CMOS CMOS process Embedded Programmable Logic Device EPLD System-on-a-Programmable-Chip SOPC
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