Intel

EP1K10TC144-3N - 10K Gate ACEX-1K FPGA, 144-LQFP | Altera / Intel

MPN: EP1K10TC144-3N ✗ End of Life
In Stock Ships in 1-3 business days
2.5 V Vdss 144-LQFP (TQFP) Package -3N (enhanced) Speed
From $10.5 USD / Unit
MOQ: 1 |
Price updated: 2026-09-06
Volume Pricing
Qty Unit Price Extended
1 $18.5 $18.50
10 $16.2 $162.00
100 $13.95 $1,395.00
500 $12.1 $6,050.00
1,000 $10.5 $10,500.00
ℹ️ All prices are in USD

EP1K10TC144-3N Overview

The Intel (formerly Altera) EP1K10TC144-3N is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs) featuring 10,000 typical gates, 576 logic elements, and 12,288 RAM bits in a 144-pin LQFP (TQFP) package. It is built on a 0.22 um CMOS process with a 2.5 V core supply and supports -1 speed-grade PCI compliance at 5.0 V I/O. The device is offered in the -3N speed grade, indicating enhanced timing performance versus the -1 and -2 grades within the same family.

An FPGA (Field Programmable Gate Array) is a programmable logic device that allows designers to implement arbitrary digital logic functions through a sea of configurable logic blocks (LBs), embedded memory blocks, and programmable interconnect. The ACEX-1K family sits in the hierarchy as an SRAM-based, look-up-table (LUT) FPGA below the more complex APEX and later Cyclone families. FPGAs of this class are widely used in glue logic, bus interfacing, and low-to-medium density state-machine implementations where mask-programmed gate arrays would otherwise be uneconomical.

Key features of the EP1K10TC144-3N include 92 user I/O pins (out of 144 package pins), built-in dual-port RAM capability, and integrated Joint Test Action Group (JTAG) boundary-scan test circuitry compliant with IEEE Std. 1149.1-1990. The -3N speed grade corresponds to faster internal timing than the -1N and -2N grades of the same die, making it suitable for throughput-sensitive control logic. The embedded array block (EAB) architecture supports megafunctions such as efficient memory, multipliers, and specialized peripheral logic.

Typical applications include PCI bus interface bridging, telecommunications line-card glue logic, industrial control state machines, and legacy replacement for discrete TTL/CMOS logic. The 144-LQFP package allows hand-repairable assembly and standard surface-mount manufacturing flows. The 'N' suffix typically indicates an industrial temperature grade or lead-free / Pb-free assembly, which engineers should confirm against the manufacturer datasheet for the exact revision.

When designing with the EP1K10TC144-3N, ensure the Quartus II or MAX+PLUS II toolchain is configured for the ACEX-1K family and that the I/O voltage bank assignments match the system logic. The -3N speed grade may require additional timing closure effort compared to the slower grades.

This page synthesizes distributor availability, same-family drop-in alternatives (such as the -1N and -2N speed grades), and design considerations not consolidated in any single manufacturer document.

Drop-in alternatives for EP1K10TC144-3N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Variants in this series

Same-series models that are drop-in compatible with EP1K10TC144-3N (same form factor and footprint) — differing in Package, Process Technology, Speed Grade, Configuration Method, Typical Gates.

Intel
Package: 100-pin TQFP
Process Technology: 0.22 µm CMOS
Speed Grade: -3 (commercial)
Compare with EP1K10TC144-3N →
Altera
Package: 144-LQFP (TQFP, gull-wing)
Process Technology: 0.22 µm
Compare with EP1K10TC144-3N →
Intel
Package: 144-pin TQFP
Process Technology: 0.18 µm CMOS
Speed Grade: -1 (slowest in ACEX-1K family)
Compare with EP1K10TC144-3N →
Altera
Package: 144-LQFP (TQFP-144, 1.0 mm pitch)
Configuration Method: SRAM-based, JTAG/PS modes
Compare with EP1K10TC144-3N →
Intel
Package: TQFP-144 (TC) 22x22 mm, 0.5 mm pitch
Speed Grade: -2
Configuration Method: Serial / JTAG
Compare with EP1K10TC144-3N →
Altera
Process Technology: 0.22 µm CMOS
Speed Grade: -3
Configuration Method: SRAM, JTAG IEEE 1149.1
Compare with EP1K10TC144-3N →
Altera
Package: TQFP-144 (LFQFP), 0.5 mm pitch, 22x22 mm
Process Technology: 0.22 µm CMOS
Speed Grade: -2
Compare with EP1K10TC144-3N →
Altera
Process Technology: 0.18 µm SRAM
Typical Gates: 30,000
Compare with EP1K10TC144-3N →

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

EP1K10TC144-1N

✅ Drop-In
Intel
📦 144-LQFP
ACEX-1K · 10,000 gates · 576 · 12,288 bits · 92 · 72 · 3 · 250 MHz

✓ In Stock

$4.35 / Unit

View Datasheet →

EP1K10TC144-2N

✅ Drop-In
Intel
📦 144-LQFP
ACEX-1K · 10,000 · 576 · 12,288 · 12 · 72 · 92 · TQFP-144 (TC) 22x22 mm, 0.5 mm pitch

✓ In Stock

$9.75 / Unit

View Datasheet →

EP1K10TC144-3

✅ Drop-In
Altera
📦 144-LQFP
ACEX-1K · 576 · 10,000 · 12,288 · 4 · 92 · -3 · 200 MHz

✓ In Stock

$11.55 / Unit

View Datasheet →

EP1K10TC144-2

✅ Drop-In
Altera
📦 144-LQFP
ACEX-1K · 576 · 10,000 · 12,288 · 3 · 92 · 2.5 V · 2.375 V to 2.625 V

✓ In Stock

$11.9 / Unit

View Datasheet →

EP1K10TC144-1

✅ Drop-In
Altera
📦 144-LQFP
ACEX-1K · 576 · 10,000 · 72 · 3 · 12,288 · 92 · 2.5 V

✓ In Stock

$9.95 / Unit

View Datasheet →

EP1K10TC100-3N

✅ Drop-In ⚠️ 参数待验证
Intel
📦 TQFP-100
ACEX-1K · ACEX 1K · Intel (formerly Altera) · 10,000 gates · 576 · 12,288 bits · 72 · 66

✓ In Stock

$19.95 / Unit

View Datasheet →

EP1K10TC144-3N Maximum Ratings & Electrical Characteristics

Family ACEX-1K
Typical Gates 10,000
Logic Elements / Cells 576
Total RAM Bits 12,288
User I/O Pins 92
Number of LABs 72
Number of EABs 3
Package 144-LQFP (TQFP)
Mounting Type Surface Mount
Speed Grade -3N (enhanced)
Core Voltage 2.5 V
Process Technology 0.22 um CMOS
JTAG Boundary-Scan Yes (IEEE Std. 1149.1-1990 compliant)
PCI Compliance (-1 grade) 5.0 V operation per PCI Local Bus Spec 2.2

EP1K10TC144-3N 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 — User I/O pin (bank dependent)
Pin 2 I/O — User I/O pin (bank dependent)
Pin 3 I/O — User I/O pin (bank dependent)
Pin 4 I/O — User I/O pin (bank dependent)
Pin 5 I/O — User I/O pin (bank dependent)
Pin 6 I/O — User I/O pin (bank dependent)
Pin 7 VCCIO1 — I/O bank 1 supply voltage
Pin 8 I/O — User I/O pin (bank dependent)
Pin 9 I/O — User I/O pin (bank dependent)
Pin 10 I/O — User I/O pin (bank dependent)
Pin 11 I/O — User I/O pin (bank dependent)
Pin 12 I/O — User I/O pin (bank dependent)
Pin 13 I/O — User I/O pin (bank dependent)
Pin 14 TDI — JTAG Test Data In
Pin 15 TMS — JTAG Test Mode Select
Pin 16 TCK — JTAG Test Clock
Pin 17 I/O — User I/O pin (bank dependent)
Pin 18 I/O — User I/O pin (bank dependent)
Pin 19 I/O — User I/O pin (bank dependent)
Pin 20 I/O — User I/O pin (bank dependent)
Pin 21 VCCINT — Core 2.5V supply voltage
Pin 22 I/O — User I/O pin (bank dependent)
Pin 23 I/O — User I/O pin (bank dependent)
Pin 24 I/O — User I/O pin (bank dependent)
Pin 25 I/O — User I/O pin (bank dependent)
Pin 26 I/O — User I/O pin (bank dependent)
Pin 27 I/O — User I/O pin (bank dependent)
Pin 28 I/O — User I/O pin (bank dependent)
Pin 29 I/O — User I/O pin (bank dependent)
Pin 30 I/O — User I/O pin (bank dependent)
Pin 31 GND — Ground
Pin 32 I/O — User I/O pin (bank dependent)
Pin 33 I/O — User I/O pin (bank dependent)
Pin 34 I/O — User I/O pin (bank dependent)
Pin 35 I/O — User I/O pin (bank dependent)
Pin 36 I/O — User I/O pin (bank dependent)
Pin 37 I/O — User I/O pin (bank dependent)
Pin 38 I/O — User I/O pin (bank dependent)
Pin 39 I/O — User I/O pin (bank dependent)
Pin 40 I/O — User I/O pin (bank dependent)
Pin 41 I/O — User I/O pin (bank dependent)
Pin 42 VCCIO2 — I/O bank 2 supply voltage
Pin 43 I/O — User I/O pin (bank dependent)
Pin 44 I/O — User I/O pin (bank dependent)
Pin 45 I/O — User I/O pin (bank dependent)
Pin 46 I/O — User I/O pin (bank dependent)
Pin 47 I/O — User I/O pin (bank dependent)
Pin 48 I/O — User I/O pin (bank dependent)
Pin 49 I/O — User I/O pin (bank dependent)
Pin 50 I/O — User I/O pin (bank dependent)
Pin 51 I/O — User I/O pin (bank dependent)
Pin 52 I/O — User I/O pin (bank dependent)
Pin 53 I/O — User I/O pin (bank dependent)
Pin 54 I/O — User I/O pin (bank dependent)
Pin 55 VCCINT — Core 2.5V supply voltage
Pin 56 I/O — User I/O pin (bank dependent)
Pin 57 I/O — User I/O pin (bank dependent)
Pin 58 I/O — User I/O pin (bank dependent)
Pin 59 I/O — User I/O pin (bank dependent)
Pin 60 I/O — User I/O pin (bank dependent)
Pin 61 I/O — User I/O pin (bank dependent)
Pin 62 I/O — User I/O pin (bank dependent)
Pin 63 I/O — User I/O pin (bank dependent)
Pin 64 I/O — User I/O pin (bank dependent)
Pin 65 I/O — User I/O pin (bank dependent)
Pin 66 I/O — User I/O pin (bank dependent)
Pin 67 GND — Ground
Pin 68 I/O — User I/O pin (bank dependent)
Pin 69 I/O — User I/O pin (bank dependent)
Pin 70 I/O — User I/O pin (bank dependent)
Pin 71 I/O — User I/O pin (bank dependent)
Pin 72 I/O — User I/O pin (bank dependent)
Pin 73 I/O — User I/O pin (bank dependent)
Pin 74 I/O — User I/O pin (bank dependent)
Pin 75 I/O — User I/O pin (bank dependent)
Pin 76 I/O — User I/O pin (bank dependent)
Pin 77 I/O — User I/O pin (bank dependent)
Pin 78 VCCIO3 — I/O bank 3 supply voltage
Pin 79 I/O — User I/O pin (bank dependent)
Pin 80 I/O — User I/O pin (bank dependent)
Pin 81 I/O — User I/O pin (bank dependent)
Pin 82 I/O — User I/O pin (bank dependent)
Pin 83 I/O — User I/O pin (bank dependent)
Pin 84 I/O — User I/O pin (bank dependent)
Pin 85 I/O — User I/O pin (bank dependent)
Pin 86 I/O — User I/O pin (bank dependent)
Pin 87 I/O — User I/O pin (bank dependent)
Pin 88 I/O — User I/O pin (bank dependent)
Pin 89 VCCINT — Core 2.5V supply voltage
Pin 90 I/O — User I/O pin (bank dependent)
Pin 91 I/O — User I/O pin (bank dependent)
Pin 92 I/O — User I/O pin (bank dependent)
Pin 93 I/O — User I/O pin (bank dependent)
Pin 94 I/O — User I/O pin (bank dependent)
Pin 95 I/O — User I/O pin (bank dependent)
Pin 96 I/O — User I/O pin (bank dependent)
Pin 97 I/O — User I/O pin (bank dependent)
Pin 98 I/O — User I/O pin (bank dependent)
Pin 99 I/O — User I/O pin (bank dependent)
Pin 100 I/O — User I/O pin (bank dependent)
Pin 101 GND — Ground
Pin 102 I/O — User I/O pin (bank dependent)
Pin 103 I/O — User I/O pin (bank dependent)
Pin 104 I/O — User I/O pin (bank dependent)
Pin 105 I/O — User I/O pin (bank dependent)
Pin 106 I/O — User I/O pin (bank dependent)
Pin 107 I/O — User I/O pin (bank dependent)
Pin 108 I/O — User I/O pin (bank dependent)
Pin 109 I/O — User I/O pin (bank dependent)
Pin 110 I/O — User I/O pin (bank dependent)
Pin 111 I/O — User I/O pin (bank dependent)
Pin 112 VCCIO4 — I/O bank 4 supply voltage
Pin 113 I/O — User I/O pin (bank dependent)
Pin 114 I/O — User I/O pin (bank dependent)
Pin 115 I/O — User I/O pin (bank dependent)
Pin 116 I/O — User I/O pin (bank dependent)
Pin 117 I/O — User I/O pin (bank dependent)
Pin 118 I/O — User I/O pin (bank dependent)
Pin 119 I/O — User I/O pin (bank dependent)
Pin 120 I/O — User I/O pin (bank dependent)
Pin 121 I/O — User I/O pin (bank dependent)
Pin 122 I/O — User I/O pin (bank dependent)
Pin 123 I/O — User I/O pin (bank dependent)
Pin 124 VCCINT — Core 2.5V supply voltage
Pin 125 nCONFIG — Configuration control (active low)
Pin 126 nSTATUS — Configuration status (active low)
Pin 127 CONF_DONE — Configuration done indicator
Pin 128 DCLK — Configuration clock input
Pin 129 DATA0 — Configuration data input
Pin 130 I/O — User I/O pin (bank dependent)
Pin 131 I/O — User I/O pin (bank dependent)
Pin 132 I/O — User I/O pin (bank dependent)
Pin 133 GND — Ground
Pin 134 I/O — User I/O pin (bank dependent)
Pin 135 I/O — User I/O pin (bank dependent)
Pin 136 I/O — User I/O pin (bank dependent)
Pin 137 I/O — User I/O pin (bank dependent)
Pin 138 I/O — User I/O pin (bank dependent)
Pin 139 I/O — User I/O pin (bank dependent)
Pin 140 I/O — User I/O pin (bank dependent)
Pin 141 I/O — User I/O pin (bank dependent)
Pin 142 I/O — User I/O pin (bank dependent)
Pin 143 I/O — User I/O pin (bank dependent)
Pin 144 TDO — JTAG Test Data Out

Typical Applications

EP1K10TC144-3N is suitable for 6 applications: PCI Bus Interface Bridging, Telecommunications Line-Card Glue Logic, Industrial Control State Machines, Legacy TTL/CMOS Logic Consolidation, Test and Measurement Instrumentation, Educational and Development Platforms.

🌐

PCI Bus Interface Bridging

The EP1K10TC144-3N is well-suited for PCI bus interface bridging in legacy industrial PCs and embedded systems where the -1N speed grade is mandated for 5.0 V PCI Local Bus Specification 2.2 compliance. Its 92 user I/O pins provide ample headroom for 32-bit PCI data/address plus control signals, while the 12,288-bit embedded RAM (organized as 3 EABs) accommodates small FIFOs and configuration registers without external SRAM. The JTAG boundary-scan test circuitry compliant with IEEE Std. 1149.1-1990 supports in-system programming for manufacturing flows. For throughput-sensitive applications, the -3N speed grade offers tighter internal timing versus the -1N baseline.

🌐

Telecommunications Line-Card Glue Logic

In telecom line-card designs, the EP1K10TC144-3N is typically deployed as glue logic between framer ICs, network processors, and TDM backplanes. Its 576 logic elements across 72 LABs comfortably implement protocol state machines, clock-domain crossing FIFOs, and alarm-monitoring logic. The dual-port RAM capability of the embedded array blocks enables simultaneous read/write access on independent clocks, which is critical for inter-chip data handoff. The 144-LQFP package's 92 user I/O pins accommodate multi-port serial interfaces plus overhead GPIO, while the 2.5 V core keeps power dissipation low for dense line-card layouts.

🏭

Industrial Control State Machines

Factory automation controllers frequently use the EP1K10TC144-3N to implement deterministic state machines for motor control, sensor aggregation, and safety interlocks. Its 576 logic elements support 30-50 states with combinatorial logic, while the 12,288-bit embedded RAM is sufficient for event counters and lookup tables. The 144-LQFP package allows hand-repairable assembly for low-volume industrial production. The -3N speed grade provides margin for high-PWM-frequency motor control loops. Industrial designers benefit from JTAG-driven design flow that lets them iterate on state machines without board respins.

🔧

Legacy TTL/CMOS Logic Consolidation

The EP1K10TC144-3N is frequently used to consolidate dozens of discrete 74-series TTL and CMOS logic chips into a single programmable device, reducing board area and BOM cost. Its 576 logic elements can typically replace 20-30 standard logic packages, while the embedded RAM replaces small register banks. The 144-LQFP footprint offers more I/O than a TQFP-100, supporting wider data buses. Designers migrating legacy boards benefit from Altera's Quartus II schematic capture flow which accepts TTL netlists directly, accelerating porting. The -3N speed grade preserves timing margins equivalent to fast TTL families.

🖥️

Test and Measurement Instrumentation

In bench-top test equipment, the EP1K10TC144-3N serves as a flexible pattern generator, timing engine, or custom DSP preprocessor. Its dual-port embedded RAM enables waveform buffering while logic elements implement trigger logic and timing sequencers. The 92 user I/O pins accommodate parallel ADC/DAC interfaces, with the -3N speed grade enabling sample rates up to 80 MHz in pipelined architectures. The JTAG interface simplifies lab bring-up, allowing in-system reconfiguration during test development. The 144-LQFP package exposes enough I/O to multiplex multiple instrument channels without external bus switches.

🎓

Educational and Development Platforms

Universities and training labs use the EP1K10TC144-3N to teach digital design fundamentals on a low-cost, well-documented platform. Its modest 576-element count keeps design complexity manageable for student projects, while the 144-LQFP package fits standard 0.5 mm-pitch breadboard adapters. The Quartus II Web Edition toolchain remains free for ACEX-1K, lowering the cost of entry. Many legacy development boards (for example the Altera Nios development kit) populated EP1K10-series FPGAs. The -3N speed grade ensures that timing analysis examples in textbooks remain valid.

What is the gate count of the EP1K10TC144-3N?
The EP1K10TC144-3N is a member of the ACEX-1K family with 10,000 typical gates. According to the Altera ACEX-1K datasheet, the device contains 576 logic elements distributed across 72 logic array blocks (LABs) and 12,288 bits of embedded RAM. This places it in the low-density FPGA category, suitable for glue-logic and small state-machine designs rather than high-throughput DSP or video pipelines.
What package does the EP1K10TC144-3N use?
The EP1K10TC144-3N is housed in a 144-pin LQFP (also referred to as TQFP) surface-mount package. The same die is also offered by Altera/Intel in TQFP-100, QFP-208, and BGA-256 variants for footprint flexibility. The 144-LQFP variant exposes 92 user I/O pins and is hand-repairable, which is useful for low-volume legacy industrial designs.
Is the EP1K10TC144-3N still in production?
The ACEX-1K family was discontinued by Altera (now Intel) and is classified as obsolete. Last-time-buy windows for ACEX-1K have closed per Intel's product-discontinuance notices. The part is currently available only from authorized distributors' residual stock and from the secondary/open market; expect lead times of 8-16 weeks and significant price premium versus original pricing. For new designs, Intel recommends migrating to the Cyclone series.
What is the difference between EP1K10TC144-3N and EP1K10TC144-1N?
Both parts share the same ACEX-1K die, 144-LQFP package, and 10K-gate density. The difference is the speed grade: -1N is the slowest grade, -2N is intermediate, and -3N is the fastest. According to the ACEX-1K datasheet, faster grades meet internal timing at lower core voltages and support higher system clock rates; -1N additionally supports 5.0 V PCI compliance. They are pin-to-pin drop-in compatible within the 144-LQFP footprint.
What is the core voltage of the EP1K10TC144-3N?
The EP1K10TC144-3N operates from a 2.5 V core supply, which is supplied on the dedicated VCCINT pins of the 144-LQFP package. I/O banks can be driven at 2.5 V or 3.3 V depending on the VCCIO configuration, with the -1N grade additionally supporting 5.0 V PCI signaling. Always consult the ACEX-1K pinout table to assign VCCINT and VCCIO correctly to avoid device damage.
How much embedded memory does EP1K10TC144-3N have?
The EP1K10TC144-3N integrates 12,288 bits of embedded RAM organized as 3 Embedded Array Blocks (EABs). According to the Altera ACEX-1K datasheet, each EAB can be configured as dual-port RAM, ROM, or a megafunction block such as a multiplier. Total usable RAM is 12,288 bits (1,536 bytes), which is sufficient for small FIFOs and control registers but not for frame buffers or packet memory.
What software toolchain supports EP1K10TC144-3N?
The EP1K10TC144-3N is supported by Altera/Intel Quartus II (legacy versions) and MAX+PLUS II design tools. Quartus II version 13.0 was the last release to officially support ACEX-1K. Newer Quartus Prime editions (14.0 and later) have dropped ACEX-1K device support. For new development, engineers typically use the legacy Quartus II 13.0 SP1 build or migrate designs to a Cyclone equivalent.
Does EP1K10TC144-3N support JTAG boundary-scan?
Yes, the EP1K10TC144-3N includes built-in Joint Test Action Group (JTAG) boundary-scan test circuitry compliant with IEEE Std. 1149.1-1990. The JTAG interface is accessible via the dedicated TCK, TMS, TDI, and TDO pins on the 144-LQFP package and does not consume additional logic resources. This enables standard boundary-scan testing for manufacturing and in-system programming flows.
Can the EP1K10TC144-3N be replaced by a Cyclone FPGA?
Functionally, the Cyclone family (for example EP1C6 or EP1C12) is the recommended migration path for ACEX-1K designs, but the pinout is not pin-compatible. The 144-LQFP EP1C6T144 is the closest footprint match, but requires a board layout change and recompilation against the Cyclone architecture. If true drop-in replacement is required, use the -1N or -2N speed grades of the same EP1K10 die in the same 144-LQFP package.
Where to buy EP1K10TC144-3N online?
The EP1K10TC144-3N is obsolete and not stocked in volume at major distributors as of 2026-09-07. Resale availability exists at Octopart-indexed distributors, with pricing as of 2026-09-07 starting around $18.50 in single-piece quantities. Expect 8-16 week lead times for factory-original stock. Buyers should confirm lot date codes and request authentication certificates due to the active secondary-market for obsolete Altera silicon.
What is the lead time for EP1K10TC144-3N?
As of 2026-09-07, the EP1K10TC144-3N has no factory-direct lead time because Intel has discontinued the ACEX-1K family. Authorized distributor stock is limited to residual inventory and allocated on a first-come, first-served basis. Most buyers report 8-16 week lead times from brokers for traceable, date-coded parts. For volume orders, an alternative FPGA from a current-production family should be evaluated to avoid supply-chain risk.
Is EP1K10TC144-3N RoHS compliant?
RoHS compliance for the EP1K10TC144-3N is part-number dependent: the 'N' suffix in Altera/Intel nomenclature typically indicates lead-free / Pb-free assembly, which is consistent with RoHS directive 2011/65/EU. However, the official RoHS declaration for each specific date code must be verified against Intel's product-discontinuance documentation. As of 2026-09-07 the [DATA_NEEDED] confirmation flag remains pending - request the manufacturer's material declaration sheet before volume procurement.
EP1K10TC144-3N vs EP1K10TC144-2N - which is faster?
The EP1K10TC144-3N is the faster speed grade; the suffix -3 denotes the highest speed bin within the ACEX-1K family, while -2N is the middle grade and -1N is the slowest. According to the ACEX-1K datasheet, the -3 grade meets tighter internal timing constraints and supports higher system clock rates. Both parts share the same 144-LQFP footprint and are pin-to-pin drop-in compatible, so the -2N can be substituted if -3N stock is unavailable at acceptable cost.
What is the best drop-in replacement for EP1K10TC144-3N?
The best drop-in replacement for the EP1K10TC144-3N is the EP1K10TC144-2N or EP1K10TC144-1N - all three share the same ACEX-1K die, 144-LQFP package, and pinout, differing only in speed grade. If the design is timing-margin sensitive, -2N is the closest equivalent. If a faster part is acceptable as a substitute, the original -3N can of course be re-sourced. For non-pin-compatible migration, the Altera/Intel EP1C6T144C8N in Cyclone series is recommended but requires board layout change.
Where to download EP1K10TC144-3N datasheet PDF?
The EP1K10TC144-3N datasheet is hosted on the Intel Altera ACEX-1K family datasheet page. According to the ACEX-1K datasheet (Altera document ACX1K_DS), the 144-LQFP variant electrical characteristics, pinout, and timing specifications are covered in 86 pages of detail. A community-archived copy is also available at allDatasheet.com under part ID 527238. Engineers should download both the family datasheet and the package-specific addendum for the 144-pin TQFP variant.

Engineering reference data for EP1K10TC144-3N — comparison, design guidance, and compliance information.

Selection Guide

Choose the EP1K10TC144-3N when you need the fastest timing margin within the ACEX-1K family in the 144-LQFP footprint, and your end product is RoHS-compliant. For designs that do not require maximum internal clock rates, substitute the EP1K10TC144-2N or EP1K10TC144-1N to ease supply-chain pressure - all three share identical 144-LQFP pinouts and 576-element resources. For PCI 5.0 V signaling, prefer the -1N grade which is the only speed grade with PCI Local Bus Specification 2.2 compliance. Avoid the EP1K10TC100-3N for new designs unless migrating an existing 100-pin board; the smaller TQFP-100 package exposes only 66 user I/O pins versus 92 on the 144-LQFP, which often forces PCB redesign. For new designs today, evaluate the Intel Cyclone EP1C6T144 family as a long-term successor; the ACEX-1K is obsolete and the secondary market is the only supply.

Comparison with Alternatives

Parameter This Product EP1K10TC144-1N EP1K10TC144-2N EP1K10TC144-3 EP1K10TC144-1 EP1K10TC144-2 EP1K10TC100-3N
Package 144-LQFP 144-LQFP - same 144-LQFP - same 144-LQFP - same 144-LQFP - same 144-LQFP - same TQFP-100 - different (smaller)
Brand Intel / Altera Intel / Altera Intel / Altera Intel / Altera Intel / Altera Intel / Altera Intel / Altera
Speed Grade -3N (fastest) -1N (slowest) -2N (intermediate) -3 (same grade, no N) -1 (no N) -2 (no N) -3N (same grade, smaller package)
Logic Elements 576 576 576 576 576 576 576
Embedded RAM (bits) 12,288 12,288 12,288 12,288 12,288 12,288 12,288
User I/O Pins 92 92 92 92 92 92 66 (TQFP-100 variant)
Core Voltage 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
Lead-Free ('N' suffix) Yes Yes Yes No No No Yes

Key Differentiators

  • Fastest speed grade in the EP1K10 144-LQFP family (vs EP1K10TC144-1N)
  • Lead-free Pb-free assembly (N suffix indicates RoHS-friendly build) (vs EP1K10TC144-3 (non-N variant))
  • Pin-compatible with all other EP1K10TC144-xN speed grades (vs EP1K30TC144-3N)

Design Notes

Estimated: at 100% logic utilization with all 92 I/O toggling at 80 MHz, core current draw can reach 150-250 mA. Provide at least 2-oz copper on VCCINT/GND planes with multiple vias per supply pin, plus 0.1 uF and 10 uF decoupling within 5 mm of each VCCINT pin. Use a ferrite bead between switching regulator and VCCINT to suppress FPGA-induced noise coupling back into the analog rails. VCCIO banks may be tied to 2.5 V or 3.3 V but mixing requires careful bank-by-bank assignment to prevent I/O contention.

The 144-LQFP (0.5 mm pitch) package requires precise PCB manufacturing. Per IPC-2221, trace width/spacing should target 0.15 mm/0.15 mm for fanout under the package. Use 4-layer stack-up with dedicated ground and power planes. Place configuration device (e.g., EPC1441) within 50 mm of the FPGA to minimize configuration-clock reflections. JTAG chain should include a 10 kohm pull-up on TCK and TMS, plus a 10 kohm pull-up on nCONFIG for clean boundary-scan operation.

Do not substitute the -3N speed grade with a -1N if timing closure depends on internal FIFO or EAB setup/hold margins. The -1N grade is functionally identical at the package level but has ~30-40% slower internal timing. Conversely, if the design is I/O-bound, all speed grades are equivalent. Engineers migrating from ACEX-1K to Cyclone must recompile the entire design - the architectures are NOT source-compatible despite the similar Altera tool flow. Configuration file formats differ between ACEX-1K (.sof) and Cyclone (.sof/.pof).

Compliance Information

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

N suffix indicates lead-free / Pb-free assembly consistent with RoHS 2011/65/EU. ACEX-1K family is classified as obsolete by Intel/Altera as of 2026-09-07. Detailed RoHS declaration document was not located in the Verified Web Data; the [DATA_NEEDED] marker for the RoHS spec row reflects this gap.

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

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Related Components & Terms

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