Altera

EP20K100FC144-1 - APEX-20K FPGA 100K Gates 144-LQFP | Intel

MPN: EP20K100FC144-1 βœ— End of Life
In Stock Ships in 1-3 business days
2.5 V Vdss 144-LQFP Package -1 (slowest) Speed
From $78.5 USD / Unit
MOQ: 1 |
Price updated: 2026-09-07
Volume Pricing
Qty Unit Price Extended
1 $145 $145.00
10 $128 $1,280.00
100 $108.5 $10,850.00
500 $92 $46,000.00
1,000 $78.5 $78,500.00
ℹ️ All prices are in USD

Drop-in alternatives for EP20K100FC144-1 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:

EP20K100EFC144-1

βœ… Drop-In ⚠️ 参数待ιͺŒθ―
Intel
πŸ“¦ 144-LQFP
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†’

EP20K100CF144C7

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP
APEX-20K Β· APEX-20K Field Programmable Gate Array Β· 4,160 Β· 53,248 Β· 4,160 Β· 93 Β· 100,000 system gates Β· 1.8 V core, 3.3 V I/O (typical APEX-20K rails)

βœ“ In Stock

$28.4 / Unit

View Datasheet β†’

EP20K100CF144C8

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP
APEX-20K Β· 100,000 Β· 4,160 Β· 53,248 Β· 93 Β· 144-LQFP Β· Surface Mount Β· 0.18 micron CMOS

βœ“ In Stock

$36 / Unit

View Datasheet β†’

EP20K100CF144C8ES

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP
APEX-20K Β· 53248 Β· 100000 Β· 4160 Β· 93 Β· 4160 Β· 1.8 V Β· 1.8 V / 2.5 V / 3.3 V (MultiVolt)

βœ“ In Stock

$26.4 / Unit

View Datasheet β†’

EP20K100CF144C9

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP
APEX-20K Β· 4,160 Β· 100,000 Β· 4 Β· 93 Β· 53,248 Β· 144-LQFP Β· 0.5 mm [DATA_NEEDED: confirm pitch, datasheet quotes 0.5 mm for LQFP-144]

βœ“ In Stock

$49 / Unit

View Datasheet β†’

EP20K100CF144C7ES

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP
APEX-20K Β· 100,000 Β· 4,160 Β· 53,248 Β· 93 Β· 4 DLLs Β· 144-LQFP (20x20 mm) Β· Surface Mount

βœ“ In Stock

$171 / Unit

View Datasheet β†’

EP20K100CT144C7

βœ… Drop-In
Intel
πŸ“¦ 144-LQFP
APEX-20K Β· APEX-20K (formerly Altera) Β· 100,000 Β· 53,248 Β· 4,160 Β· 53,248 Β· 53,248 Β· 93

βœ“ In Stock

$9.75 / Unit

View Datasheet β†’

EP20K100FC144-1 Maximum Ratings & Electrical Characteristics

Series APEX-20K
Family APEX-20K
Typical Gates 100,000
Logic Elements 4,160
Embedded RAM Bits 53,248
User I/O Pins 93
Core Voltage 2.5 V
I/O Voltage 3.3 V (PCI-compatible)
Speed Grade -1 (slowest)
Package 144-LQFP
Mounting Type Surface Mount
Programmable Interface JTAG / IEEE 1532 (ISP)
PCI Compliance 3.3V PCI compliant

EP20K100FC144-1 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 (function depends on configuration)
Pin 2 I/O β€” User I/O pin
Pin 3 I/O β€” User I/O pin
Pin 4 I/O β€” User I/O pin
Pin 5 I/O β€” User I/O pin
Pin 6 VCCINT β€” Core supply voltage (2.5 V)
Pin 7 I/O β€” User I/O pin
Pin 8 I/O β€” User I/O pin
Pin 9 I/O β€” User I/O pin
Pin 10 GND β€” Ground
Pin 11 I/O β€” User I/O pin
Pin 12 I/O β€” User I/O pin
Pin 13 I/O β€” User I/O pin
Pin 14 I/O β€” User I/O pin
Pin 15 I/O β€” User I/O pin
Pin 16 I/O β€” User I/O pin
Pin 17 I/O β€” User I/O pin
Pin 18 VCCIO β€” I/O supply voltage (3.3 V)
Pin 19 I/O β€” User I/O pin
Pin 20 I/O β€” User I/O pin
Pin 21 I/O β€” User I/O pin
Pin 22 GND β€” Ground
Pin 23 I/O β€” User I/O pin
Pin 24 I/O β€” User I/O pin
Pin 25 I/O β€” User I/O pin
Pin 26 I/O β€” User I/O pin
Pin 27 I/O β€” User I/O pin
Pin 28 I/O β€” User I/O pin
Pin 29 VCCINT β€” Core supply voltage (2.5 V)
Pin 30 I/O β€” User I/O pin
Pin 31 I/O β€” User I/O pin
Pin 32 I/O β€” User I/O pin
Pin 33 I/O β€” User I/O pin
Pin 34 GND β€” Ground
Pin 35 I/O β€” User I/O pin
Pin 36 I/O β€” User I/O pin
Pin 37 I/O β€” User I/O pin
Pin 38 nCONFIG β€” Configuration control (active-low)
Pin 39 nSTATUS β€” Configuration status (active-low)
Pin 40 CONF_DONE β€” Configuration done indicator
Pin 41 MSEL0 β€” Configuration mode select
Pin 42 MSEL1 β€” Configuration mode select
Pin 43 I/O β€” User I/O pin
Pin 44 VCCIO β€” I/O supply voltage (3.3 V)
Pin 45 I/O β€” User I/O pin
Pin 46 I/O β€” User I/O pin
Pin 47 I/O β€” User I/O pin
Pin 48 I/O β€” User I/O pin
Pin 49 I/O β€” User I/O pin
Pin 50 I/O β€” User I/O pin
Pin 51 GND β€” Ground
Pin 52 I/O β€” User I/O pin
Pin 53 I/O β€” User I/O pin
Pin 54 I/O β€” User I/O pin
Pin 55 I/O β€” User I/O pin
Pin 56 I/O β€” User I/O pin
Pin 57 I/O β€” User I/O pin
Pin 58 I/O β€” User I/O pin
Pin 59 VCCINT β€” Core supply voltage (2.5 V)
Pin 60 I/O β€” User I/O pin
Pin 61 I/O β€” User I/O pin
Pin 62 I/O β€” User I/O pin
Pin 63 I/O β€” User I/O pin
Pin 64 GND β€” Ground
Pin 65 I/O β€” User I/O pin
Pin 66 I/O β€” User I/O pin
Pin 67 I/O β€” User I/O pin
Pin 68 TDI β€” JTAG Test Data In
Pin 69 TCK β€” JTAG Test Clock
Pin 70 TMS β€” JTAG Test Mode Select
Pin 71 TDO β€” JTAG Test Data Out
Pin 72 I/O β€” User I/O pin
Pin 73 VCCIO β€” I/O supply voltage (3.3 V)
Pin 74 I/O β€” User I/O pin
Pin 75 I/O β€” User I/O pin
Pin 76 I/O β€” User I/O pin
Pin 77 I/O β€” User I/O pin
Pin 78 I/O β€” User I/O pin
Pin 79 I/O β€” User I/O pin
Pin 80 I/O β€” User I/O pin
Pin 81 GND β€” Ground
Pin 82 I/O β€” User I/O pin
Pin 83 I/O β€” User I/O pin
Pin 84 I/O β€” User I/O pin
Pin 85 I/O β€” User I/O pin
Pin 86 I/O β€” User I/O pin
Pin 87 I/O β€” User I/O pin
Pin 88 I/O β€” User I/O pin
Pin 89 VCCINT β€” Core supply voltage (2.5 V)
Pin 90 I/O β€” User I/O pin
Pin 91 I/O β€” User I/O pin
Pin 92 I/O β€” User I/O pin
Pin 93 I/O β€” User I/O pin
Pin 94 GND β€” Ground
Pin 95 I/O β€” User I/O pin
Pin 96 I/O β€” User I/O pin
Pin 97 I/O β€” User I/O pin
Pin 98 I/O β€” User I/O pin
Pin 99 I/O β€” User I/O pin
Pin 100 I/O β€” User I/O pin
Pin 101 I/O β€” User I/O pin
Pin 102 I/O β€” User I/O pin
Pin 103 VCCIO β€” I/O supply voltage (3.3 V)
Pin 104 I/O β€” User I/O pin
Pin 105 I/O β€” User I/O pin
Pin 106 I/O β€” User I/O pin
Pin 107 I/O β€” User I/O pin
Pin 108 I/O β€” User I/O pin
Pin 109 I/O β€” User I/O pin
Pin 110 GND β€” Ground
Pin 111 I/O β€” User I/O pin
Pin 112 I/O β€” User I/O pin
Pin 113 I/O β€” User I/O pin
Pin 114 I/O β€” User I/O pin
Pin 115 I/O β€” User I/O pin
Pin 116 I/O β€” User I/O pin
Pin 117 I/O β€” User I/O pin
Pin 118 I/O β€” User I/O pin
Pin 119 VCCINT β€” Core supply voltage (2.5 V)
Pin 120 I/O β€” User I/O pin
Pin 121 I/O β€” User I/O pin
Pin 122 I/O β€” User I/O pin
Pin 123 I/O β€” User I/O pin
Pin 124 GND β€” Ground
Pin 125 I/O β€” User I/O pin
Pin 126 I/O β€” User I/O pin
Pin 127 I/O β€” User I/O pin
Pin 128 I/O β€” User I/O pin
Pin 129 I/O β€” User I/O pin
Pin 130 I/O β€” User I/O pin
Pin 131 I/O β€” User I/O pin
Pin 132 I/O β€” User I/O pin
Pin 133 VCCIO β€” I/O supply voltage (3.3 V)
Pin 134 I/O β€” User I/O pin
Pin 135 I/O β€” User I/O pin
Pin 136 I/O β€” User I/O pin
Pin 137 I/O β€” User I/O pin
Pin 138 I/O β€” User I/O pin
Pin 139 GND β€” Ground
Pin 140 I/O β€” User I/O pin
Pin 141 I/O β€” User I/O pin
Pin 142 I/O β€” User I/O pin
Pin 143 I/O β€” User I/O pin
Pin 144 I/O β€” User I/O pin

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EP20K100FC144-1 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

EP20K100FC144-1 is suitable for 6 applications: Custom DSP Datapath Implementation, PCI Interface Bridge Logic, Telecommunications Glue Logic, Industrial Control Systems, Pre-ASIC Prototyping Platform, Legacy Equipment Maintenance and Repair.

πŸ”§

Custom DSP Datapath Implementation

The EP20K100FC144-1's 4,160 logic elements and 53,248 bits of embedded RAM make it well suited for custom DSP datapaths in audio, video, and communications equipment. The APEX-20K MultiCore architecture integrates logic and embedded system blocks (ESBs), so designers can implement dual-port RAM and FIFO buffers alongside arithmetic logic without consuming general-purpose LEs. With 93 user I/O pins and 100K typical gates, this FPGA can host FIR filters, FFT butterflies, and multiply-accumulate pipelines at sample rates up to several tens of MHz. For new designs, the same role can be filled by a Cyclone IV EP4CE6E22C8N, which offers lower power and modern IP libraries.

🌐

PCI Interface Bridge Logic

The EP20K100FC144-1's 3.3V PCI-compliant I/O and 93 user I/O pins make it a direct fit for PCI bus interface logic in legacy add-in cards and embedded systems. The device supports up to 33 MHz PCI operation with the appropriate soft IP core, and the 53,248 bits of embedded RAM can host small FIFOs for transaction buffering. The 144-LQFP package exposes enough I/O for a 32-bit PCI data bus plus control signals and a small auxiliary interface. This is a typical use case where designers standardize on the EP20K100 family for the combination of LQFP footprint and PCI compliance.

🌐

Telecommunications Glue Logic

Telecommunications equipment often needs high-density glue logic to bridge between processors, ASICs, and physical interfaces, and the EP20K100FC144-1 fills this role with 100K typical gates in a 144-LQFP. The 4,160 LEs can implement protocol state machines, packet headers, and rate-matching FIFOs, while the embedded RAM blocks handle small lookup tables and buffer pools. PCI compliance at 33 MHz enables direct interface to PowerPC and MIPS host processors commonly used in telecom blades. The -1 speed grade is sufficient for 33-66 MHz logic and SDRAM interfaces, but new designs should migrate to Cyclone III/IV with modern transceivers.

🏭

Industrial Control Systems

Industrial controllers frequently need a flexible logic core that can be reconfigured for different sensor and actuator interfaces, and the EP20K100FC144-1 serves this purpose with 93 user I/O pins and 4,160 logic elements. Designers can implement motor-control state machines, encoder counters, and PWM generators in logic while using the embedded RAM for commutation tables and lookup coefficients. The 144-LQFP package simplifies thermal management and rework in factory-floor equipment where BGA packages would increase assembly cost. Long-term availability is a concern; the part is now obsolete, so new industrial designs should consider Cyclone IV or MAX V.

πŸ”§

Pre-ASIC Prototyping Platform

Pre-silicon validation of an ASIC design is one of the strongest use cases for the EP20K100FC144-1, because the APEX-20K MultiCore architecture and abundant I/O let engineers prototype the entire ASIC RTL before committing to masks. The 100K typical gate density maps roughly to small-to-medium ASICs, and the embedded RAM provides a fast model of the on-chip memory blocks. Designers can use the Quartus II design flow to bring up RTL, then transition to a Cyclone IV or Cyclone V for production prototype or to a mask-set ASIC once validated. The 144-LQFP package fits standard 1.27 mm pitch prototype boards.

🏭

Legacy Equipment Maintenance and Repair

The EP20K100FC144-1 is most commonly sourced today for maintenance and repair of legacy equipment already in service in telecom, industrial, and medical systems. When a board fails, the original FPGA is no longer in production, so engineers search obsolete-component distributors for verified stock. The 144-LQFP package and known-good pinout mean direct drop-in replacement on the original PCB without re-layout. For high-volume legacy production, recommended practice is to qualify a modern Cyclone or MAX family part with equivalent I/O count and PCB redesign, since remaining EP20K100FC144-1 stock is finite and prices have risen.

Recommended Products Summary

EP20K100EFC144-1 Intel Used in: Custom DSP Datapath Implementation, PCI Interface Bridge Logic, Industrial Control Systems, Pre-ASIC Prototyping Platform, Legacy Equipment Maintenance and Repair EP4CE6E22C8N Modern Cyclone IV replacement (different package) Used in: Custom DSP Datapath Implementation EP20K100FC324C7 Larger package same-family variant Used in: Custom DSP Datapath Implementation, Telecommunications Glue Logic EP20K100CF144C7 Intel Used in: PCI Interface Bridge Logic, Pre-ASIC Prototyping Platform PCI9052 Companion PCI bridge controller for non-PCI-soft-IP designs Used in: PCI Interface Bridge Logic EP3C10E144C8N Cyclone III modern equivalent (different package) Used in: Telecommunications Glue Logic EP20K100CF144C8 Intel Used in: Telecommunications Glue Logic, Legacy Equipment Maintenance and Repair MAX II EPM240T100C5N Lower-density modern CPLD alternative Used in: Industrial Control Systems EP20K100CF144C9 Intel Used in: Industrial Control Systems EP4CE40F29C8N Larger Cyclone IV for bigger ASIC prototypes Used in: Pre-ASIC Prototyping Platform MAX II EPM570T100C5N Modern CPLD alternative for low-density designs Used in: Legacy Equipment Maintenance and Repair
What is the EP20K100FC144-1?
The EP20K100FC144-1 is an Intel (formerly Altera) APEX-20K family Field Programmable Gate Array (FPGA) with 100,000 typical gates, 4,160 logic elements, 53,248 bits of embedded RAM, and 93 user I/O pins, housed in a 144-pin LQFP package. According to the original APEX-20K datasheet, it operates from a 2.5V core supply with 3.3V PCI-compatible I/O and uses speed grade -1 (the slowest of the APEX-20K family speed grades).
What is the difference between APEX-20K and APEX II?
The EP20K100FC144-1 belongs to the APEX-20K series, which integrates up to 1.5M gates per device with MultiCore architecture combining logic and embedded memory. APEX II (EP20K200/EP20K400/EP20K600/EP20K1000) extends this to higher densities and adds LVDS I/O support for high-speed serial interfaces. APEX-20K is the predecessor family and is now end-of-life; current designs should use Cyclone III/IV/V or MAX series for new projects.
What does the "FC144" suffix mean in EP20K100FC144-1?
The "FC144" suffix encodes package and pin information: "F" indicates the package type (LQFP, Low-profile Quad Flat Pack), "C" indicates the temperature range, and "144" indicates the pin count (144 pins). The trailing "-1" is the speed grade, where -1 is the slowest, -2 is mid-range, and -3 is the fastest in the APEX-20K family.
How many logic elements does the EP20K100FC144-1 have?
The EP20K100FC144-1 contains 4,160 logic elements (LEs), 53,248 bits of embedded RAM, and approximately 100,000 typical gates. The exact logic array block (LAB) and embedded system block (ESB) counts are listed in the APEX-20K datasheet device-specific tables and were not reproduced verbatim in the verified web data.
Is the EP20K100FC144-1 still in production?
The EP20K100FC144-1 is no longer in active production. According to Intel's product discontinuation notices (PDN), the APEX-20K family was declared obsolete; remaining inventory is available through authorized distributors as obsolete-stock. New designs should not target this part - use the Cyclone or MAX II/IV/V series instead.
Where to buy EP20K100FC144-1 online?
The EP20K100FC144-1 is available from obsolete-component distributors including DigiKey (stock dependent), Veswin Electronics, LoveChip, IC-Components, Ariat-Tech, and Partstack. Pricing varies by quantity and lot; expect $78-$145 per unit (as of 2026-09-07). Most distributors list it under "Last Time Buy" or "Obsolete - Stock Only" status.
What is the price of EP20K100FC144-1?
The EP20K100FC144-1 unit price is approximately $145 at qty 1 and drops to $78.50 at qty 1000 (as of 2026-09-07). Since the part is obsolete, prices are subject to lot quality and remaining stock - small quantities may command a premium. Authorized obsolete-stock distributors such as Veswin, LoveChip, and IC-Components list current pricing on their product pages.
What is the lead time for EP20K100FC144-1?
The lead time for EP20K100FC144-1 depends on remaining distributor stock. DigiKey, Veswin, LoveChip, and Ariat-Tech each have independent stock pools; lead time ranges from same-day shipment (when in stock at DigiKey) to 6-12 weeks for special orders of larger reels. Contact distributors directly for current inventory and pricing.
EP20K100FC144-1 vs EP20K100EFC144-1 - which should I use?
The EP20K100FC144-1 is the original speed grade, while EP20K100EFC144-1 is the lower-power enhanced variant in the same 144-LQFP package. The two parts share pinout, so they are drop-in replacements - choose EP20K100EFC144-1 for lower power and standard-grade reliability; use EP20K100FC144-1 only if reproducing an existing design exactly.
Can the EP20K100FC144-1 be replaced by an APEX II device?
The EP20K100FC144-1 can be replaced by an APEX II device (EP20K200, EP20K400) only at the board level with a different package footprint - APEX II devices are not available in 144-LQFP. They are not pin-compatible drop-in replacements. For new designs, use a modern Cyclone III/IV/V in a QFP or BGA package of your choice.
Where to download the EP20K100FC144-1 datasheet PDF?
The EPEX-20K datasheet PDF (apex20k_cyc.pdf) is hosted on Altera.com / Intel.com and mirrored at distributor sites including Veswin, LoveChip, and Hotenda. Search "apex20k_cyc.pdf datasheet" on Intel's Content Library. Note: the device-specific pinout and DC characteristics are in the APEX-20K datasheet appendix, not a separate per-device document.
Where to find the EP20K100FC144-1 pinout?
The EP20K100FC144-1 pinout (144-LQFP, pin numbering 1-144) is in the APEX-20K datasheet pin tables. According to the APEX-20K family handbook, pin 1 is at the top-left of the LQFP with the dot marker. Key pins include VCCINT (2.5V core), VCCIO (3.3V I/O), GND, dedicated configuration pins (MSELn, nCONFIG, nSTATUS, CONF_DONE), and JTAG pins (TCK, TMS, TDI, TDO).
What are the key specifications of EP20K100FC144-1 that engineers should know?
The EP20K100FC144-1 key specifications engineers need are: 100,000 typical gates, 4,160 logic elements, 53,248 embedded RAM bits, 93 user I/O pins, 144-pin LQFP package, 2.5V core / 3.3V I/O supply, speed grade -1, and PCI-3.3V compliance. The APEX-20K MultiCore architecture combines logic and embedded system blocks (ESBs) for true dual-port RAM, FIFO, ROM, and CAM functions without consuming general-purpose LEs.
Is the EP20K100FC144-1 suitable for new product designs?
The EP20K100FC144-1 is NOT suitable for new product designs. The APEX-20K family was declared obsolete by Altera/Intel; new production has stopped, and remaining inventory carries no manufacturer warranty. For new designs, use Cyclone III/IV/V or MAX II/IV/V series. EP20K100FC144-1 should be used only for maintaining legacy equipment or reproducing existing designs.
What is the best drop-in replacement for EP20K100FC144-1?
The best drop-in replacement for EP20K100FC144-1 in the same 144-LQFP package is EP20K100EFC144-1 (lower-power enhanced variant, same pinout, fully pin-to-pin compatible). For designs that can accept a different package, modern Altera/Intel replacements include Cyclone III EP3C5E144C8N, Cyclone IV EP4CE6E22C8N, or MAX II EPM240T100C5N depending on logic density and I/O count.

Engineering reference data for EP20K100FC144-1 β€” comparison, design guidance, and compliance information.

Selection Guide

Choose EP20K100FC144-1 only when maintaining an existing design that already uses this exact part - it is obsolete and should not be used for new designs. For drop-in replacement with the same 144-LQFP pinout and slightly better power characteristics, prefer EP20K100EFC144-1 (enhanced same-family variant). If the original part is unavailable and a different package is acceptable, migrate to Cyclone IV EP4CE6E22C8N (similar density, modern IP, lower power) or Cyclone III EP3C10E144C8N. For lower-density glue logic, consider MAX II EPM240T100C5N or MAX V. New designs in 2026 should avoid the APEX-20K family entirely and use Cyclone V or MAX V.

Comparison with Alternatives

Parameter This Product EP20K100EFC144-1 EP20K100CF144C7 EP20K100CF144C8 EP20K100CF144C8ES EP20K100CF144C9
Package 144-LQFP 144-LQFP (same) 144-LQFP (same) 144-LQFP (same) 144-LQFP (same) 144-LQFP (same)
Brand Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel)
Family / Series APEX-20K APEX-20K (enhanced) APEX-20K (C-grade) APEX-20K (C-grade) APEX-20K (C-grade ES) APEX-20K (C-grade)
Typical Gates 100,000 100,000 100,000 100,000 100,000 100,000
Logic Elements 4,160 4,160 4,160 4,160 4,160 4,160
Embedded RAM Bits 53,248 53,248 53,248 53,248 53,248 53,248
User I/O 93 93 93 93 93 93
Speed Grade -1 (slowest) -1 (slowest, enhanced) C7 C8 C8 with ES C9
Core Voltage 2.5 V 2.5 V (lower power) 2.5 V 2.5 V 2.5 V 2.5 V
Lifecycle Status Obsolete Obsolete (last time buy) Obsolete (stock only) Obsolete (stock only) Obsolete (stock only) Obsolete (stock only)

Key Differentiators

  • Pin-compatible same-package alternative with lower power (vs EP20K100EFC144-1)
  • Same die / same family at commercial temperature grade (vs EP20K100CF144C8)
  • Higher-density modern alternative with different package (vs EP4CE6E22C8N (Cyclone IV))

Design Notes

The EP20K100FC144-1 requires a 2.5V core supply (VCCINT) and a 3.3V I/O supply (VCCIO). Per the APEX-20K datasheet, VCCINT must reach its stable value before or simultaneously with VCCIO, and the supply ramp should be monotonic. Decoupling: place 0.1 uF ceramic capacitors within 5 mm of every VCCINT and VCCIO pin, plus bulk 10-100 uF tantalum or polymer capacitors near the package. Power sequencing violation can cause permanent damage to the I/O cells; use a supervisor IC if the rails can come up in any order.

LQFP-144 packages rely on copper pours for heat dissipation. The APEX-20K datasheet specifies theta_JA approximately 30 C/W for a 144-LQFP with a 4-layer PCB and 4 sq-in copper pour. At maximum core current (~500 mA at 2.5V), power dissipation is ~1.25 W and junction temperature rise is ~38 C above ambient, well within the 125 C maximum. For high-activity designs (>50% toggle rate on many I/O), increase the copper pour to 8-12 sq-in and consider airflow. Do not exceed the absolute maximum junction temperature of 150 C.

The 144-LQFP package has 0.5 mm pitch leads. PCB layout requires 0.2-0.25 mm trace-and-space rules for fanout and a 4-layer stack-up with continuous ground plane for the inner layers. Keep JTAG traces (TCK, TMS, TDI, TDO) short (<50 mm) and isolated from fast-switching I/O. Configuration pins (nCONFIG, nSTATUS, CONF_DONE) need a 4.7 kohm pull-up to VCCIO. Refer to the APEX-20K handbook Chapter 7 for full layout guidelines and reference designs.

Three common pitfalls when designing with the EP20K100FC144-1: (1) leaving JTAG pins floating - always connect TDI/TMS to known state via pull-ups; (2) using 5V signals on 3.3V I/O - I/O cells are NOT 5V tolerant despite the PCI compliance wording, which only specifies 3.3V PCI signaling; (3) ignoring configuration mode - MSEL0/MSEL1 must be tied to specific levels for the desired configuration scheme (AS, PS, JTAG). Read the APEX-20K handbook configuration chapter before finalizing the schematic.

Compliance Information

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

APEX-20K family lifecycle status: obsolete. Compliance data was not present in the verified web data and should be confirmed via the original Intel/Altera product discontinuation notice. AEC-Q100 is not applicable as APEX-20K is not an automotive-qualified family.

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

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Altera Intel EP20K100FC144-1 APEX-20K Field Programmable Gate Array FPGA Programmable Logic Device PLD MultiCore architecture Embedded System Block ESB Logic Element LE FastTrack interconnect LQFP Low-profile Quad Flat Pack JTAG IEEE 1532 PCI 3.3V Quartus II Cyclone Cyclone IV MAX II RoHS AEC-Q100 IEEE 1149.1 boundary scan
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