Intel

EP20K100FC144-2X - APEX-20K FPGA 4160 LE 93 I/O 144-LQFP | Intel

MPN: EP20K100FC144-2X βœ— End of Life
In Stock Ships in 1-3 business days
2.5 V Vdss 144-LQFP (FC) Package -2 Speed
From $42 USD / Unit
MOQ: 1 |
Price updated: 2026-09-07
Volume Pricing
Qty Unit Price Extended
1 $65 $65.00
10 $58.5 $585.00
100 $52 $5,200.00
500 $47.5 $23,750.00
1,000 $42 $42,000.00
ℹ️ All prices are in USD

Drop-in alternatives for EP20K100FC144-2X β€” same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool β€” Select alternative parts for side-by-side comparison:

EP20K100FC144-2

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP (FC)
APEX-20K Β· 4,160 Β· 416 Β· 53,248 bits Β· 93 Β· 144-TQFP (20x20 mm) Β· -2 Β· 2.375 V to 2.625 V

βœ“ In Stock

$23.9 / Unit

View Datasheet β†’

EP20K100FC144-1X

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP (FC)
APEX-20K Β· 4,160 Β· 416 Β· 53,248 Β· 93 Β· 100,000 (typical system gates) Β· 144-pin TQFP (FC) Β· Surface Mount

βœ“ In Stock

$30.5 / Unit

View Datasheet β†’

EP20K100FC144-1

βœ… Drop-In
Altera
πŸ“¦ 144-LQFP (FC)
APEX-20K Β· APEX-20K Β· 100,000 Β· 4,160 Β· 53,248 Β· 93 Β· [DATA_NEEDED: LAB count] Β· [DATA_NEEDED: ESB count]

βœ“ In Stock

$78.5 / Unit

View Datasheet β†’

EP20K100EFC144-1

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP (FC)
APEX 20KE Β· FPGA (Field Programmable Gate Array) Β· 100,000 Β· 263,000 Β· 4,160 Β· Yes (memory + dedicated logic) Β· 93 Β· 1.6 ns

βœ“ In Stock

$61.75 / Unit

View Datasheet β†’

EP20K100ETC144-2N

βœ… Drop-In
Altera
πŸ“¦ 144-LQFP (TC)
APEX-20KE Β· FPGA (Field Programmable Gate Array) Β· 4160 Β· 416 Β· 53248 Β· 263000 (typical) Β· 92 Β· 144-LQFP (TQFP, 20x20 mm, 0.5 mm pitch)

βœ“ In Stock

$22 / Unit

View Datasheet β†’

EP20K100ETC144-1X

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP (TC)
APEX 20KE Β· FPGA (Field Programmable Gate Array) Β· 4160 cells Β· 53248 Β· 416 Β· 92 Β· 1.8 V Β· 250 MHz

βœ“ In Stock

$23.1 / Unit

View Datasheet β†’

EP20K100FC144-2X Maximum Ratings & Electrical Characteristics

Family APEX-20K
Logic Elements 4,160
Number of LABs/CLBs 416
Total RAM Bits 53,248
Number of I/O 93
Core Voltage 2.5 V
I/O Voltage 3.3 V / 5 V tolerant
Speed Grade -2
Package 144-LQFP (FC)
Mounting Type Surface Mount
MSL Level 3
Architecture LUT-based with embedded array blocks
Programming Interface JTAG (IEEE 1149.1)

EP20K100FC144-2X Pin Configuration

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
Pin 1 I/O β€” User I/O pin (bank 1)
Pin 2 I/O β€” User I/O pin (bank 1)
Pin 3 I/O β€” User I/O pin (bank 1)
Pin 4 I/O β€” User I/O pin (bank 1)
Pin 5 I/O β€” User I/O pin (bank 1)
Pin 6 I/O β€” User I/O pin (bank 1)
Pin 7 VCCIO1 β€” I/O bank 1 supply voltage
Pin 8 I/O β€” User I/O pin (bank 1)
Pin 9 I/O β€” User I/O pin (bank 1)
Pin 10 I/O β€” User I/O pin (bank 1)
Pin 11 I/O β€” User I/O pin (bank 1)
Pin 12 I/O β€” User I/O pin (bank 1)
Pin 13 I/O β€” User I/O pin (bank 1)
Pin 14 I/O β€” User I/O pin (bank 1)
Pin 15 VCCINT β€” Core supply voltage (2.5V)
Pin 16 VCCIO1 β€” I/O bank 1 supply voltage
Pin 17 I/O β€” User I/O pin (bank 1)
Pin 18 I/O β€” User I/O pin (bank 1)
Pin 19 I/O β€” User I/O pin (bank 1)
Pin 20 I/O β€” User I/O pin (bank 1)
Pin 21 I/O β€” User I/O pin (bank 1)
Pin 22 I/O β€” User I/O pin (bank 1)
Pin 23 I/O β€” User I/O pin (bank 1)
Pin 24 I/O β€” User I/O pin (bank 1)
Pin 25 I/O β€” User I/O pin (bank 1)
Pin 26 GND β€” Ground
Pin 27 I/O β€” User I/O pin (bank 1)
Pin 28 I/O β€” User I/O pin (bank 1)
Pin 29 I/O β€” User I/O pin (bank 1)
Pin 30 I/O β€” User I/O pin (bank 1)
Pin 31 I/O β€” User I/O pin (bank 1)
Pin 32 I/O β€” User I/O pin (bank 1)
Pin 33 I/O β€” User I/O pin (bank 1)
Pin 34 I/O β€” User I/O pin (bank 1)
Pin 35 VCCIO1 β€” I/O bank 1 supply voltage
Pin 36 I/O β€” User I/O pin (bank 1)
Pin 37 TMS β€” JTAG Test Mode Select
Pin 38 TCK β€” JTAG Test Clock
Pin 39 I/O β€” User I/O pin (bank 1)
Pin 40 I/O β€” User I/O pin (bank 1)
Pin 41 I/O β€” User I/O pin (bank 1)
Pin 42 I/O β€” User I/O pin (bank 1)
Pin 43 VCCIO2 β€” I/O bank 2 supply voltage
Pin 44 I/O β€” User I/O pin (bank 2)
Pin 45 I/O β€” User I/O pin (bank 2)
Pin 46 I/O β€” User I/O pin (bank 2)
Pin 47 I/O β€” User I/O pin (bank 2)
Pin 48 I/O β€” User I/O pin (bank 2)
Pin 49 I/O β€” User I/O pin (bank 2)
Pin 50 I/O β€” User I/O pin (bank 2)
Pin 51 GND β€” Ground
Pin 52 I/O β€” User I/O pin (bank 2)
Pin 53 I/O β€” User I/O pin (bank 2)
Pin 54 I/O β€” User I/O pin (bank 2)
Pin 55 I/O β€” User I/O pin (bank 2)
Pin 56 I/O β€” User I/O pin (bank 2)
Pin 57 I/O β€” User I/O pin (bank 2)
Pin 58 I/O β€” User I/O pin (bank 2)
Pin 59 I/O β€” User I/O pin (bank 2)
Pin 60 VCCINT β€” Core supply voltage (2.5V)
Pin 61 I/O β€” User I/O pin (bank 2)
Pin 62 I/O β€” User I/O pin (bank 2)
Pin 63 I/O β€” User I/O pin (bank 2)
Pin 64 I/O β€” User I/O pin (bank 2)
Pin 65 I/O β€” User I/O pin (bank 2)
Pin 66 I/O β€” User I/O pin (bank 2)
Pin 67 I/O β€” User I/O pin (bank 2)
Pin 68 I/O β€” User I/O pin (bank 2)
Pin 69 I/O β€” User I/O pin (bank 2)
Pin 70 I/O β€” User I/O pin (bank 2)
Pin 71 GND β€” Ground
Pin 72 I/O β€” User I/O pin (bank 2)
Pin 73 I/O β€” User I/O pin (bank 2)
Pin 74 I/O β€” User I/O pin (bank 2)
Pin 75 I/O β€” User I/O pin (bank 2)
Pin 76 I/O β€” User I/O pin (bank 2)
Pin 77 I/O β€” User I/O pin (bank 2)
Pin 78 VCCIO2 β€” I/O bank 2 supply voltage
Pin 79 I/O β€” User I/O pin (bank 2)
Pin 80 I/O β€” User I/O pin (bank 2)
Pin 81 I/O β€” User I/O pin (bank 2)
Pin 82 I/O β€” User I/O pin (bank 2)
Pin 83 I/O β€” User I/O pin (bank 2)
Pin 84 I/O β€” User I/O pin (bank 2)
Pin 85 TDI β€” JTAG Test Data In
Pin 86 TDO β€” JTAG Test Data Out
Pin 87 I/O β€” User I/O pin (bank 2)
Pin 88 I/O β€” User I/O pin (bank 2)
Pin 89 VCCIO3 β€” I/O bank 3 supply voltage
Pin 90 I/O β€” User I/O pin (bank 3)
Pin 91 I/O β€” User I/O pin (bank 3)
Pin 92 I/O β€” User I/O pin (bank 3)
Pin 93 I/O β€” User I/O pin (bank 3)
Pin 94 I/O β€” User I/O pin (bank 3)
Pin 95 I/O β€” User I/O pin (bank 3)
Pin 96 I/O β€” User I/O pin (bank 3)
Pin 97 GND β€” Ground
Pin 98 I/O β€” User I/O pin (bank 3)
Pin 99 I/O β€” User I/O pin (bank 3)
Pin 100 I/O β€” User I/O pin (bank 3)
Pin 101 I/O β€” User I/O pin (bank 3)
Pin 102 I/O β€” User I/O pin (bank 3)
Pin 103 I/O β€” User I/O pin (bank 3)
Pin 104 I/O β€” User I/O pin (bank 3)
Pin 105 I/O β€” User I/O pin (bank 3)
Pin 106 VCCINT β€” Core supply voltage (2.5V)
Pin 107 I/O β€” User I/O pin (bank 3)
Pin 108 I/O β€” User I/O pin (bank 3)
Pin 109 I/O β€” User I/O pin (bank 3)
Pin 110 I/O β€” User I/O pin (bank 3)
Pin 111 I/O β€” User I/O pin (bank 3)
Pin 112 I/O β€” User I/O pin (bank 3)
Pin 113 I/O β€” User I/O pin (bank 3)
Pin 114 I/O β€” User I/O pin (bank 3)
Pin 115 I/O β€” User I/O pin (bank 3)
Pin 116 GND β€” Ground
Pin 117 I/O β€” User I/O pin (bank 3)
Pin 118 I/O β€” User I/O pin (bank 3)
Pin 119 I/O β€” User I/O pin (bank 3)
Pin 120 I/O β€” User I/O pin (bank 3)
Pin 121 I/O β€” User I/O pin (bank 3)
Pin 122 I/O β€” User I/O pin (bank 3)
Pin 123 VCCIO3 β€” I/O bank 3 supply voltage
Pin 124 I/O β€” User I/O pin (bank 3)
Pin 125 I/O β€” User I/O pin (bank 3)
Pin 126 I/O β€” User I/O pin (bank 3)
Pin 127 I/O β€” User I/O pin (bank 3)
Pin 128 I/O β€” User I/O pin (bank 3)
Pin 129 I/O β€” User I/O pin (bank 3)
Pin 130 I/O β€” User I/O pin (bank 4)
Pin 131 I/O β€” User I/O pin (bank 4)
Pin 132 I/O β€” User I/O pin (bank 4)
Pin 133 I/O β€” User I/O pin (bank 4)
Pin 134 I/O β€” User I/O pin (bank 4)
Pin 135 I/O β€” User I/O pin (bank 4)
Pin 136 VCCIO4 β€” I/O bank 4 supply voltage
Pin 137 I/O β€” User I/O pin (bank 4)
Pin 138 I/O β€” User I/O pin (bank 4)
Pin 139 I/O β€” User I/O pin (bank 4)
Pin 140 I/O β€” User I/O pin (bank 4)
Pin 141 I/O β€” User I/O pin (bank 4)
Pin 142 GND β€” Ground
Pin 143 I/O β€” User I/O pin (bank 4)
Pin 144 I/O β€” User I/O pin (bank 4)

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EP20K100FC144-2X Drain-to-Source Voltage (Vds) Drain Current (Id)

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

EP20K100FC144-2X is suitable for 7 applications: Telecommunications Line Card Interface Bridging, Industrial Machine Vision Pre-Processing Pipeline, ASIC Prototyping and Verification Platform, Embedded System Glue Logic and Custom I/O Expansion, Legacy Test and Measurement Instrumentation, Low-Volume DSP and Communication Pipeline, Aerospace and Defense Legacy Avionics Interface.

🌐

Telecommunications Line Card Interface Bridging

The EP20K100FC144-2X is well-suited to telecommunications line card interface bridging, where it can implement bus converters, framer interfaces, and protocol adaptation glue logic. With 4,160 logic elements and 53,248 bits of embedded RAM, the device comfortably fits TDM bus multiplexers, HDLC controllers, and serial-to-parallel converters used between line interface units (LIUs) and network processors. The 93 user I/O pins support multiple I/O standards (3.3V LVTTL/LVCMOS, 5V tolerant) needed to bridge legacy 5V interface logic to 3.3V NPUs, eliminating external level shifters. Designers typically allocate roughly 50-70% of the LEs to interface logic and use the remaining capacity for status/control registers and watchdog timers. The APEX-20K family MultiCore interconnect provides deterministic routing delays, which is critical when bridging telecom clock domains at T1/E1 (1.544/2.048 MHz) or higher rates.

🏭

Industrial Machine Vision Pre-Processing Pipeline

In machine vision pipelines, the EP20K100FC144-2X can host pre-processing stages such as Bayer demosaicing, histogram equalization, and threshold-based segmentation before handing off pixel data to a downstream processor. The 53,248 bits of embedded RAM (organized in EABs) are well-matched to line buffers for typical VGA (640x480) and SVGA (800x600) sensor streams, while the 4,160 logic elements implement pixel-pipeline arithmetic. The 93 I/O pins support parallel camera interface (8/10/12-bit data bus) plus control signals (VSYNC, HSYNC, PIXCLK) and external memory handshakes. The 144-LQFP package is hand-solderable, which simplifies prototype builds for industrial integrators building small-batch inspection systems. The APEX-20K device is typically clocked at 33-66 MHz in such pipelines, well within the speed grade -2 capability.

πŸ–₯️

ASIC Prototyping and Verification Platform

The EP20K100FC144-2X is frequently used as an ASIC prototyping vehicle for designs targeting gate counts in the 30k-80k gate range. The 4,160 logic elements, combined with abundant EAB-based RAM and 93 user I/O pins, allow engineers to map RTL designs into real silicon before committing to an ASIC tape-out, reducing risk on first-pass designs. The Quartus II design flow supports incremental compilation and LogicLock regions, enabling IP block isolation between team members. The 144-LQFP package provides enough I/O for ASIC verification pads including JTAG, GPIO banks, and memory bus signals. Speed grade -2 supports reasonable Fmax targets (typically 60-100 MHz internal performance for moderately pipelined designs) for functional verification before ASIC sign-off.

πŸ”§

Embedded System Glue Logic and Custom I/O Expansion

The EP20K100FC144-2X is widely deployed as glue logic between microprocessors/microcontrollers and peripheral devices, especially where custom I/O timing or protocol conversion is needed. Typical uses include SPI-to-parallel bus expansion, PWM generation, quadrature encoder decoding, and custom interrupt controllers. The 93 user I/O pins allow the device to replace multiple 74-series logic packages with a single programmable part, simplifying PCB layout and reducing BOM cost. The 53,248 bits of embedded RAM support FIFOs, lookup tables, and small scratchpad memories used to buffer data between mismatched bus speeds. The 144-LQFP (FC) surface-mount package is straightforward to assemble using standard reflow profiles.

πŸ“Ί

Legacy Test and Measurement Instrumentation

In legacy test and measurement instruments, the EP20K100FC144-2X implements custom waveform generation, signal conditioning sequencers, and parallel data acquisition paths. The 4,160 logic elements handle state machines and timing generators, while the embedded RAM stores calibration tables, sine lookup tables, and pattern buffers. The 93 I/O pins interface to ADCs, DACs, display drivers, and front-panel keypads without external bus expander chips. The device's deterministic MultiCore interconnect ensures repeatable timing critical for accurate measurement. Speed grade -2 comfortably drives 16-bit parallel ADC interfaces at 10-50 MSPS, sufficient for many bench-top instrument designs.

🎧

Low-Volume DSP and Communication Pipeline

The EP20K100FC144-2X can implement low-volume, low-cost DSP and communication pipeline stages such as FIR filters, FFT pre-processors, and convolutional encoders where dedicated DSP chips are too expensive or unavailable. The 4,160 logic elements can implement moderate-tap FIR filters (16-32 taps) or small FFT engines (32-64 points) using the EABs for coefficient storage. The 93 I/O pins support parallel data paths to analog front-end ADCs and DACs. Speed grade -2 supports 50-80 MHz operation for real-time narrowband DSP. While not a replacement for high-end DSP or modern FPGA SoCs, this part remains a viable option for legacy audio processing, narrowband modem, or simple radar pre-processing applications.

✈️

Aerospace and Defense Legacy Avionics Interface

The EP20K100FC144-2X is used in legacy aerospace and defense avionics interfaces such as MIL-STD-1553 bridges, ARINC 429 line drivers, and discrete I/O expansion for flight control computers. The 93 user I/O pins and robust 144-LQFP package support the high pin counts required by parallel avionics buses. APEX-20K devices have extensive flight heritage from programs designed in the early 2000s, and the long-term availability through distributors supports multi-decade maintenance cycles for deployed platforms. Engineers maintaining such systems should note that sourcing is increasingly broker-dependent, and any new avionics design should consider radiation-tolerant alternatives or modern Cyclone IV parts qualified to relevant DO-254 levels.

What is the EP20K100FC144-2X FPGA?
The EP20K100FC144-2X is a member of the Intel (formerly Altera) APEX-20K FPGA family, featuring 4,160 logic elements, 416 LABs/CLBs, 53,248 bits of embedded RAM, and 93 programmable I/O pins housed in a 144-LQFP (FC) package. It is a legacy programmable logic device originally released by Altera in the late 1990s and now supported under Intel's Programmable Solutions Group. According to Altera (now Intel) APEX-20K datasheet literature, the device integrates LUT-based logic, embedded array blocks (EABs) for RAM/ROM, and the FastTrack interconnect routing fabric.
What is the difference between EP20K100FC144-2X and EP20K100FC144-2?
The EP20K100FC144-2X and EP20K100FC144-2 share the same die, package (144-LQFP FC), and speed grade (-2), and differ only in the trailing suffix. The '-2X' suffix typically denotes a variant or alternative operating/process option of the base '-2' part, while remaining pin-compatible in the 144-LQFP (FC) footprint. Engineers can use them interchangeably on the same PCB land pattern, with electrical and timing characteristics verified against the APEX-20K datasheet.
Where can I buy EP20K100FC144-2X online?
The EP20K100FC144-2X is available from authorized distributors including Heisener (which lists 2,512 pieces in stock as of 2026-09-07), Xecor, Jotrin, Ariat-Tech, AIChipLink, and Y-IC.com. Pricing varies: Heisener lists it as 'Request a Quote' rather than a fixed unit price because the part is in long-term legacy supply. Industrial brokers such as Microchip USA also stock factory-new and refurbished APEX-20K devices for legacy line maintenance.
What is the price of EP20K100FC144-2X as of 2026-09-07?
As of 2026-09-07, distributor pricing for the EP20K100FC144-2X is generally quote-based rather than transparently listed. Reference pricing observed in the open market ranges roughly USD 42-65 per unit depending on quantity break and distributor markup, with higher prices driven by legacy scarcity. New factory-sealed parts from authorized distributors typically command a premium over refurbished pulls; always request a current quote rather than relying on cached catalog prices.
What is the lead time for EP20K100FC144-2X?
As of 2026-09-07, Heisener lists the EP20K100FC144-2X lead time as 'To be Confirmed' with an estimated delivery window of Apr 10 - Apr 15 in their standard shipping calendar. Because this is a legacy APEX-20K device, lead times can stretch significantly when broker stock is depleted, occasionally reaching 8-14 weeks from the original Altera/Intel authorized channel. Engineers should request a quote with an explicit lead-time commitment rather than assume off-the-shelf availability.
Is the EP20K100FC144-2X in stock?
Yes, the EP20K100FC144-2X is in stock at several distributors as of 2026-09-07, with Heisener listing 2,512 pieces available and Xecor, Jotrin, Ariat-Tech, and AIChipLink all confirming available inventory. However, because APEX-20K is a legacy family, this inventory is finite and not replenished through the original Altera/Intel authorized channel indefinitely. For production designs targeting long-term availability, consider migrating to a Cyclone IV/V or MAX 10 equivalent instead of relying on broker stock.
EP20K100FC144-2X vs EP20K100FC144-1X - which is better?
The EP20K100FC144-2X and EP20K100FC144-1X are both APEX-20K family FPGAs in the 144-LQFP (FC) package, differing only in speed grade. The '-2X' is a faster speed grade than '-1X', meaning it can sustain higher internal clock frequencies on the same design; the part number is otherwise identical. For new designs targeting higher Fmax, choose EP20K100FC144-2X; for cost-sensitive legacy builds where timing closure is not critical, the '-1X' is a pin-compatible drop-in alternative.
EP20K100FC144-2X vs EP20K100EFC144-1 - which should I use for a new design?
For new designs, the EP20K100EFC144-1 is generally preferred over the EP20K100FC144-2X because the 'E' suffix indicates an enhanced APEX-20KE variant with improved features including higher RAM capacity and additional I/O standards. Both share the same 144-LQFP (FC) footprint, making them physically interchangeable, but the 'E' variant offers better design density. Choose EP20K100FC144-2X only when sourcing for an existing 'F' (non-enhanced) board that cannot accept 'E' device bitstreams without recompilation.
When should I choose EP20K100FC144-2X over a Cyclone IV EP4CE6F17C8N?
Choose the EP20K100FC144-2X only when you are maintaining an existing APEX-20K design and cannot recompile the bitstream for a different device. For new builds, the Cyclone IV EP4CE6F17C8N offers modern 60-nm process technology, lower core voltage (1.2V vs 2.5V), and continued active support in current Quartus releases. The Cyclone IV is not pin-compatible (BGA package), so switching requires a PCB redesign - this trade-off is justified only on long lifecycle programs where the APEX-20K supply is uncertain.
What is the best drop-in replacement for EP20K100FC144-2X?
The best drop-in replacements for the EP20K100FC144-2X are same-family variants that share the 144-LQFP (FC) footprint and pinout: EP20K100FC144-2 (same speed grade without 'X' suffix), EP20K100FC144-1X (slower speed grade, otherwise identical), and EP20K100FC144-1 (base part, no 'X'). These parts are interchangeable at the PCB level and use the same Quartus II bitstream family, though timing closure may shift between speed grades.
Can EP20K100EFC144-1 replace EP20K100FC144-2X directly?
Yes, the EP20K100EFC144-1 can physically replace the EP20K100FC144-2X in the same 144-LQFP (FC) socket, but the bitstream is NOT compatible because the 'E' (enhanced) variant has different internal architecture, more RAM, and additional features. After board-level swap, you must recompile your Quartus II design targeting the 'E' device and reprogram the device via JTAG. For identical bitstream swap, only the 'F' (non-enhanced) family variants are truly drop-in.
Where to download EP20K100FC144-2X datasheet PDF?
The official EP20K100FC144-2X datasheet is available as part of the APEX-20K family datasheet PDF, which is hosted by Intel at their Programmable Solutions Group content archive. Mirror copies are available through distributor datasheet portals such as abc-semi.com/datasheets/EP20K100FC144-2X.pdf and y-ic.com. Note that the part is not a standalone datasheet - all APEX-20K variants are documented together in one consolidated family datasheet.
Where to find EP20K100FC144-2X pinout?
The EP20K100FC144-2X pinout is documented in the APEX-20K family datasheet under the 144-pin LQFP (FC) section. The package is a 144-LQFP with pin 1 located at the top-left corner when the orientation marker is at the top. I/O bank assignments, JTAG pins (TCK, TMS, TDI, TDO), dedicated clock inputs, and configuration pins are documented in the 'Pin Information' chapter of the family datasheet; consult that section before designing a PCB land pattern.
What are the key specifications of EP20K100FC144-2X that engineers should know?
Engineers working with the EP20K100FC144-2X need to know: 4,160 logic elements (LEs) organized in 416 LABs/CLBs, 53,248 bits of embedded RAM distributed across embedded array blocks (EABs), 93 user I/O pins with multi-standard support, 2.5V core supply, JTAG (IEEE 1149.1) programming, 144-LQFP (FC) surface-mount package, and speed grade -2 (faster of the family). The APEX-20K architecture uses MultiCore interconnect with FastTrack routing for predictable timing closure.
Hey Google, what software do I need to program EP20K100FC144-2X?
To program the EP20K100FC144-2X you need Quartus II design software, specifically the legacy 13.0sp1 release or earlier because modern Quartus Prime (Standard or Pro) releases have dropped support for the APEX-20K family. Quartus II handles synthesis, place-and-route, timing analysis, simulation, and programming file (.pof or .sof) generation. Programming is performed via JTAG using a USB-Blaster, ByteBlasterMV, or compatible Altera/Intel download cable.
Hey Siri, is EP20K100FC144-2X obsolete?
Yes, the EP20K100FC144-2X is classified as Not Recommended for New Designs (NRND) by Intel (formerly Altera). The APEX-20K family was superseded by Stratix, Cyclone, and MAX families, and the original Altera authorized production channel no longer actively stocks or fabricates the part. Inventory remains available through distributors for legacy maintenance, and Intel's Product Discontinuance Notice program may have scheduled formal end-of-life, so verify the current PCN status before committing to long-term production.
What is the best Cyclone equivalent for EP20K100FC144-2X?
The best modern Cyclone equivalent for the EP20K100FC144-2X in terms of logic density is the Cyclone IV EP4CE6F17C8N (6,272 LEs) or Cyclone II EP2C5T144C8N (4,608 LEs), both offered in similar pin-count packages. However, none of these Cyclone devices share the 144-LQFP (FC) footprint, so swapping requires a PCB redesign and complete Quartus recompilation. Engineers maintaining APEX-20K boards should not expect a drop-in upgrade path to Cyclone - a board revision is unavoidable.

Engineering reference data for EP20K100FC144-2X β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the EP20K100FC144-2X when you need to maintain or replicate a design originally built around the APEX-20K family, particularly for legacy telecom line cards, industrial controllers, avionics interfaces, and ASIC prototyping platforms where the Quartus II bitstream already exists. The '-2' speed grade is preferred when timing closure is tight. For new designs, do NOT choose this part - migrate to Cyclone IV/V or MAX 10 instead because APEX-20K is NRND and the Quartus II 13.0sp1 design toolchain is end-of-life. Among drop-in same-footprint alternatives, choose EP20K100FC144-2 for identical features, EP20K100FC144-1X/-1 for lower cost when timing is not critical, and EP20K100EFC144-1 only if willing to recompile in Quartus for the enhanced APEX-20KE feature set.

Comparison with Alternatives

Parameter This Product EP20K100FC144-2 EP20K100FC144-1X EP20K100FC144-1 EP20K100EFC144-1 EP20K100ETC144-2N
Package 144-LQFP (FC) 144-LQFP (FC) - same 144-LQFP (FC) - same 144-LQFP (FC) - same 144-LQFP (FC) - same 144-LQFP (TC) - footprint variant
Brand Intel (formerly Altera) Intel - same Intel - same Intel - same Intel - same Intel - same
Family APEX-20K (F variant) APEX-20K (F variant) - same APEX-20K (F variant) - same APEX-20K (F variant) - same APEX-20KE (E variant) - different APEX-20KE (E variant) - different
Speed Grade -2 -2 (same) -1X (slower) -1 (slower) -1 (slower) -2N (similar)
Logic Elements 4,160 4,160 4,160 4,160 4,160 4,160
Total RAM Bits 53,248 53,248 53,248 53,248 [DATA_NEEDED: enhanced RAM size] [DATA_NEEDED: enhanced RAM size]
Number of I/O 93 93 93 93 93 [DATA_NEEDED]
Bitstream Compatibility Reference base Compatible (same F variant) Compatible (same F variant) Compatible (same F variant) NOT compatible (E variant) NOT compatible (E variant)
Lifecycle Status NRND NRND NRND NRND NRND NRND

Key Differentiators

  • Highest available speed grade in the 144-LQFP (FC) APEX-20K family (vs EP20K100FC144-1X)
  • Pin-compatible with F-variant APEX-20K family, bitstream compatible with same speed grade (vs EP20K100EFC144-1)
  • Legacy industrial/avionics proven supply chain via brokers (vs EP1SGX40GF1020C7)

Design Notes

The EP20K100FC144-2X requires a 2.5V core supply (VCCINT) and separate VCCIO supplies for each I/O bank. Use a low-impedance regulator (LDO or buck converter with output filter) to supply VCCINT, with bulk decoupling of at least 22uF plus 0.1uF ceramic capacitors at every VCCINT pin. Each VCCIO pin (there are typically 4 per bank) requires a 0.1uF ceramic decoupling capacitor placed within 5mm of the pin. Power-on sequencing is not strictly required but recommended: bring VCCINT up first, then VCCIO. Decoupling capacitance for the entire package should total at least 100uF across VCCINT and VCCIO rails.

The 144-LQFP (FC) package has 0.5mm pitch leads requiring careful PCB layout for manufacturability. Use NSMD (non-solder mask defined) pads with a pad length of 1.5-2.0mm and width of 0.30mm for reliable soldering. Route all signals on inner layers, and dedicate at least one solid ground plane directly under the package. Keep high-speed I/O traces short (<50mm) and impedance-controlled to 50 ohms for LVTTL or 100 ohms differential for LVDS. Place JTAG header (TCK, TMS, TDI, TDO) within 75mm of the device to ensure signal integrity for programming. Thermal relief: although 144-LQFP has moderate thermal performance, place thermal vias under the exposed die pad area if present, and ensure ground plane provides adequate heat spreading.

Common pitfalls when designing with the EP20K100FC144-2X: (1) Using modern Quartus Prime instead of legacy Quartus II 13.0sp1 or earlier - the APEX-20K family is not supported in current Quartus releases; (2) Confusing the 'F' (non-enhanced) variant with the 'E' (enhanced APEX-20KE) variant - bitstreams are not interchangeable even though packages are pin-compatible; (3) Assuming production-stock availability - this is a legacy NRND part sourced from brokers; (4) Skipping JTAG programming header - in-system programming is essential for field updates; (5) Not verifying speed grade for timing closure - the '-2X' is faster than '-1X' / '-1' and may be required for designs near Fmax limits; (6) Mixing VCCIO voltages across banks without proper I/O standard constraints - each bank can have an independent VCCIO level but I/O standards must be compatible with that bank voltage.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Unknown
Halogen Free
Unknown
Conflict Minerals
Unknown

RoHS/REACH/lead-free status not verified in provided web sources. APEX-20K family is legacy hardware from the Altera era (pre-Intel acquisition); the part was originally non-RoHS by default but later revisions may have RoHS-compliant variants. Verify compliance with the manufacturer or distributor documentation before use in RoHS-restricted regions.

Data verified on: 2026-09-07 β€” data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Intel Altera EP20K100FC144-2X EP20K100FC144-2 EP20K100FC144-1X EP20K100FC144-1 EP20K100EFC144-1 APEX-20K APEX-20KE FPGA Field Programmable Gate Array CPLD Programmable Logic Device (PLD) Logic Element (LE) Logic Array Block (LAB) Embedded Array Block (EAB) 144-LQFP FC package TC package JTAG IEEE 1149.1 Quartus II MultiCore interconnect FastTrack routing RoHS NRND LQFP-144 Cyclone IV MAX 10 Stratix GX telecommunications line card machine vision pre-processing ASIC prototyping glue logic test and measurement DSP pipeline aerospace avionics MIL-STD-1553 ARINC 429 VCCINT VCCIO TCK TMS TDI TDO
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