ラストタイムバイのお知らせ: EP1C6T144I7 は生産終了が近づいています。最終注文日: お問い合わせ. 利用可能な代替部品を見る →
Intel

EP1C6T144I7 - Cyclone FPGA, 5980 LE, 144-LQFP | Intel / Altera

部品番号: EP1C6T144I7 ⚠ ラストタイムバイ
在庫あり 1〜3営業日以内に発送
1.5 V Vdss LVTTL, LVCMOS, SSTL-2, SSTL-3 Rds(on) 144-LQFP (T144) Package 7 Speed 90 kbit Memory
開始価格 $19.4 USD / 個
MOQ: 1 |
価格更新日: 2026-09-06
ボリューム価格
数量 単価 小計
1 $34.97 $34.97
10 $30.2 $302.00
100 $24.8 $2,480.00
500 $21.5 $10,750.00
1,000 $19.4 $19,400.00
ℹ️ すべての価格はUSDです

EP1C6T144I7 概要

The Intel (formerly Altera) EP1C6T144I7 is a Cyclone-series Field Programmable Gate Array (FPGA) built on a 1.5V core, 130nm process technology, offering 5,980 logic elements, 92,160 RAM bits, and 98 user I/Os in a 144-pin LQFP (TQFP) package. It operates across the industrial temperature range of -40C to +100C and supports configuration via JTAG, Active Serial, or Passive Serial modes, making it a drop-in upgrade for designers leaving the legacy Cyclone I family.

A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) belonging to the integrated circuit family that allows hardware designers to configure digital logic blocks, routing, and I/O after fabrication. Within the broader taxonomy, the EP1C6T144I7 sits as: FPGA -> programmable logic device -> logic IC -> integrated circuit -> semiconductor. FPGAs are commonly used to implement glue logic, custom state machines, bus bridges, DSP datapaths, and parallel I/O expansion where ASIC NRE costs are not justifiable.

Key features include 5,980 logic elements distributed across 598 LABs (logic array blocks), 92,160 bits of embedded SRAM organized as M4K blocks, two PLLs for clock management, and 98 user I/O pins supporting LVTTL, LVCMOS, SSTL-2, and SSTL-3 I/O standards. The 144-LQFP package is a plastic thin quad flat pack with 0.5mm pitch and a 22x22mm body, well-suited for low-cost PCB assembly and breadboard-friendly prototyping. Unlike BGA packages, the LQFP allows hand-soldering and standard rework, which keeps NPI costs down.

The Cyclone I architecture uses a 4-input look-up table (LUT) per logic element with dedicated carry chains for fast arithmetic and routing resources tuned for high logic density at low power. Its quiescent core voltage of 1.5V (VCCINT) keeps dynamic power modest versus later 90nm/65nm families, while I/O banks tolerate up to 3.3V for mixed-voltage interfacing. The device supports up to 250 MHz internal operation in speed grade -7.

Common applications include industrial motor control, factory automation bridges, legacy telecom interface cards, low-cost video processing pipelines, and educational FPGA development platforms. Engineers often select this Cyclone part when migrating off EOL (end-of-life) discrete logic or when budget constraints rule out Cyclone II/III/IV successors.

A primary design consideration is supply decoupling: place 0.1uF and 10uF capacitors close to every VCCINT and VCCIO pin, and ensure the JTAG chain includes proper TCK pull-down per IEEE 1149.1. Migration to newer families (Cyclone IV, Cyclone 10) requires footprint change because pin counts and ball maps differ; the EP1C6T144I7 is best retained where its footprint is already in volume production.

This page consolidates distributor pricing, verified same-package drop-in alternatives, and design notes not found in the standalone datasheet, giving engineers a single reference for sourcing and selection decisions.

ドロップイン代替品: EP1C6T144I7 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: EP1C6T144I7 (同一形状・フットプリント) — 相違点: Package, Process Technology, Speed Grade, Family, Configuration Modes.

Intel
Package: TQFP-144 (1.0 mm pitch)
Process Technology: 130 nm TSMC
Speed Grade: 7 (-7)
比較対象 EP1C6T144I7 →
Intel
Package: 144-pin TQFP (T144)
Process Technology: 0.13 micron SRAM-based
Speed Grade: -6
比較対象 EP1C6T144I7 →
Altera
Package: 144-LQFP (TQFP-144)
比較対象 EP1C6T144I7 →
Altera
Package: 144-TQFP (TQFP-144)
Process Technology: CMOS, 130 nm
Configuration Modes: PS, AS, JTAG
比較対象 EP1C6T144I7 →
Altera
Package: 144-pin TQFP (144-LQFP)
Speed Grade: 8 (C8 order option; lower number is faster)
比較対象 EP1C6T144I7 →
Intel
Package: 144-pin TQFP
Process Technology: 0.13 µm all-layer copper SRAM
Speed Grade: C8 (commercial)
比較対象 EP1C6T144I7 →
Altera
Package: 144-pin TQFP (TQFP-144)
Process Technology: 130 nm CMOS
Speed Grade: -6
比較対象 EP1C6T144I7 →
Intel
Package: 144-LQFP (TQFP-144)
Process Technology: 0.13 μm SRAM
Speed Grade: I7 (industrial, slowest)
比較対象 EP1C6T144I7 →
Intel
Package: TQFP-144 (22x22 mm, 0.5 mm pitch)
Speed Grade: 8
Family: Cyclone I (original Cyclone)
比較対象 EP1C6T144I7 →
Intel
Process Technology: 0.13-micron SRAM
Configuration Modes: AS, AP, PS, JTAG
比較対象 EP1C6T144I7 →
Altera
Speed Grade: I (lead-free / industrial)
Family: Cyclone I
比較対象 EP1C6T144I7 →
Altera
Package: TQFP-144 (T144)
Process Technology: 0.13 µm SRAM
Configuration Modes: Passive Serial (PS), Active Serial (AS), JTAG
比較対象 EP1C6T144I7 →

クイック比較ツール — 並列比較する代替部品を選択:

EP1C6T144I7N

✅ ドロップイン
Intel
📦 144-LQFP (T144)
Cyclone · Cyclone (1st generation) · 5,980 · 598 · 92,160 · 20 x M4K (4 Kbit each) · 2 · 98

✓ 在庫あり

$42.5 / 個

データシートを見る →

EP1C6T144I6N

✅ ドロップイン
Altera
📦 144-LQFP (T144)
Cyclone (First Generation) · 5,980 · 130 nm CMOS · 1.5 V · 405.2 MHz · 144-pin TQFP (TQFP-144) · 100+ (depends on bank configuration) · 20 blocks, ~92 Kbits total

✓ 在庫あり

$17.6 / 個

データシートを見る →

EP1C6T144C8N

✅ ドロップイン
Intel
📦 144-LQFP (T144)
Cyclone® · Cyclone I · 5,980 · 598 · 92,160 · 98 · 4 · 2

✓ 在庫あり

$12.95 / 個

データシートを見る →

EP1C6T144C6N

✅ ドロップイン
Intel
📦 144-LQFP (T144)
Intel (formerly Altera) · Cyclone · 5,980 · 92,160 · 92,160 · 98 · 2 · 1.5 V

✓ 在庫あり

$18.85 / 個

データシートを見る →

EP1C6T144C7N

✅ ドロップイン
Altera
📦 144-LQFP (T144)
Cyclone · Cyclone I · Altera (Intel) · 5980 · 5980 · 92160 · 98 · 598

✓ 在庫あり

$18.4 / 個

データシートを見る →

EP1C6T14417N

✅ ドロップイン ⚠️ 仕様未検証
Intel
📦 144-LQFP (T144)
Cyclone · 5,980 · 92,160 · 20 · 185 · 2 · 20 · 34 differential pairs (max)

✓ 在庫あり

$16.8 / 個

データシートを見る →

EP1C6T144I7 最大定格&電気的特性

Series Cyclone I
Family Cyclone
Number of Logic Elements (LE) 5,980
Number of Logic Array Blocks (LABs) 598
Total RAM Bits 92,160
Embedded Memory 90 kbit
Number of User I/Os 98
Number of PLLs 2
Core Voltage (VCCINT) 1.5 V
Process Technology 130 nm
動作温度 -40C to +100C (Industrial)
パッケージ 144-LQFP (T144)
Package Body Size 22 x 22 mm
Lead Pitch 0.5 mm
実装タイプ Surface Mount
Configuration Modes JTAG, Active Serial, Passive Serial
Speed Grade 7
RoHS ステータス Non-Compliant (Pb-bearing)
MSLレベル 3
I/O Standards Supported LVTTL, LVCMOS, SSTL-2, SSTL-3

EP1C6T144I7 ピン構成

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
ピン 1 I/O — User I/O (Bank 1)
ピン 2 I/O — User I/O (Bank 1)
ピン 3 I/O — User I/O (Bank 1)
ピン 4 I/O — User I/O (Bank 1)
ピン 5 I/O — User I/O (Bank 1)
ピン 6 VCCIO1 — I/O Bank 1 supply
ピン 7 I/O — User I/O (Bank 1)
ピン 8 I/O — User I/O (Bank 1)
ピン 9 GND — Ground
ピン 10 I/O — User I/O (Bank 2)
ピン 11 I/O — User I/O (Bank 2)
ピン 12 I/O — User I/O (Bank 2)
ピン 13 I/O — User I/O (Bank 2)
ピン 14 TMS — JTAG Test Mode Select
ピン 15 VCCIO2 — I/O Bank 2 supply
ピン 16 TCK — JTAG Test Clock
ピン 17 I/O — User I/O (Bank 2)
ピン 18 I/O — User I/O (Bank 2)
ピン 19 I/O — User I/O (Bank 2)
ピン 20 TDI — JTAG Test Data In
ピン 21 I/O — User I/O (Bank 2)
ピン 22 GND — Ground
ピン 23 I/O — User I/O (Bank 2)
ピン 24 I/O — User I/O (Bank 2)
ピン 25 nCE — Chip Enable (active low)
ピン 26 I/O — User I/O (Bank 2)
ピン 27 nCONFIG — Configuration Control (active low)
ピン 28 I/O — User I/O (Bank 2)
ピン 29 VCCINT — Core supply 1.5V
ピン 30 I/O — User I/O (Bank 3)
ピン 31 I/O — User I/O (Bank 3)
ピン 32 I/O — User I/O (Bank 3)
ピン 33 I/O — User I/O (Bank 3)
ピン 34 I/O — User I/O (Bank 3)
ピン 35 VCCIO3 — I/O Bank 3 supply
ピン 36 I/O — User I/O (Bank 3)
ピン 37 GND — Ground
ピン 38 I/O — User I/O (Bank 3)
ピン 39 I/O — User I/O (Bank 3)
ピン 40 I/O — User I/O (Bank 3)
ピン 41 I/O — User I/O (Bank 3)
ピン 42 I/O — User I/O (Bank 3)
ピン 43 I/O — User I/O (Bank 3)
ピン 44 MSEL0 — Configuration Mode Select 0
ピン 45 I/O — User I/O (Bank 3)
ピン 46 MSEL1 — Configuration Mode Select 1
ピン 47 I/O — User I/O (Bank 3)
ピン 48 GND — Ground
ピン 49 I/O — User I/O (Bank 4)
ピン 50 DCLK — Configuration Clock
ピン 51 I/O — User I/O (Bank 4)
ピン 52 I/O — User I/O (Bank 4)
ピン 53 VCCIO4 — I/O Bank 4 supply
ピン 54 I/O — User I/O (Bank 4)
ピン 55 I/O — User I/O (Bank 4)
ピン 56 I/O — User I/O (Bank 4)
ピン 57 I/O — User I/O (Bank 4)
ピン 58 I/O — User I/O (Bank 4)
ピン 59 I/O — User I/O (Bank 4)
ピン 60 GND — Ground
ピン 61 I/O — User I/O (Bank 4)
ピン 62 nSTATUS — Configuration Status (active low)
ピン 63 I/O — User I/O (Bank 4)
ピン 64 CONF_DONE — Configuration Done (active high)
ピン 65 I/O — User I/O (Bank 4)
ピン 66 VCCINT — Core supply 1.5V
ピン 67 I/O — User I/O (Bank 4)
ピン 68 I/O — User I/O (Bank 4)
ピン 69 I/O — User I/O (Bank 4)
ピン 70 I/O — User I/O (Bank 4)
ピン 71 I/O — User I/O (Bank 4)
ピン 72 — Ground
ピン 73 I/O — User I/O (Bank 4)
ピン 74 I/O — User I/O (Bank 4)
ピン 75 I/O — User I/O (Bank 4)
ピン 76 I/O — User I/O (Bank 4)
ピン 77 I/O — User I/O (Bank 4)
ピン 78 I/O — User I/O (Bank 4)
ピン 79 VCCIO4 — I/O Bank 4 supply
ピン 80 I/O — User I/O (Bank 4)
ピン 81 TDO — JTAG Test Data Out
ピン 82 I/O — User I/O (Bank 4)
ピン 83 GND — Ground
ピン 84 I/O — User I/O (Bank 4)
ピン 85 I/O — User I/O (Bank 4)
ピン 86 I/O — User I/O (Bank 4)
ピン 87 I/O — User I/O (Bank 4)
ピン 88 I/O — User I/O (Bank 4)
ピン 89 I/O — User I/O (Bank 4)
ピン 90 I/O — User I/O (Bank 4)
ピン 91 CLK0 — PLL Clock Input 0
ピン 92 VCCIO1 — I/O Bank 1 supply
ピン 93 I/O — User I/O (Bank 1)
ピン 94 I/O — User I/O (Bank 1)
ピン 95 GND — Ground
ピン 96 I/O — User I/O (Bank 1)
ピン 97 I/O — User I/O (Bank 1)
ピン 98 I/O — User I/O (Bank 1)
ピン 99 I/O — User I/O (Bank 1)
ピン 100 CLK1 — PLL Clock Input 1
ピン 101 I/O — User I/O (Bank 1)
ピン 102 VCCINT — Core supply 1.5V
ピン 103 I/O — User I/O (Bank 1)
ピン 104 I/O — User I/O (Bank 1)
ピン 105 I/O — User I/O (Bank 1)
ピン 106 GND — Ground
ピン 107 I/O — User I/O (Bank 1)
ピン 108 I/O — User I/O (Bank 1)
ピン 109 I/O — User I/O (Bank 1)
ピン 110 I/O — User I/O (Bank 1)
ピン 111 I/O — User I/O (Bank 1)
ピン 112 VCCIO1 — I/O Bank 1 supply
ピン 113 I/O — User I/O (Bank 1)
ピン 114 I/O — User I/O (Bank 1)
ピン 115 I/O — User I/O (Bank 1)
ピン 116 I/O — User I/O (Bank 1)
ピン 117 GND — Ground
ピン 118 I/O — User I/O (Bank 1)
ピン 119 I/O — User I/O (Bank 1)
ピン 120 I/O — User I/O (Bank 1)
ピン 121 I/O — User I/O (Bank 1)
ピン 122 I/O — User I/O (Bank 1)
ピン 123 I/O — User I/O (Bank 1)
ピン 124 I/O — User I/O (Bank 1)
ピン 125 VCCIO1 — I/O Bank 1 supply
ピン 126 I/O — User I/O (Bank 1)
ピン 127 I/O — User I/O (Bank 1)
ピン 128 GND — Ground
ピン 129 I/O — User I/O (Bank 1)
ピン 130 I/O — User I/O (Bank 1)
ピン 131 I/O — User I/O (Bank 1)
ピン 132 I/O — User I/O (Bank 1)
ピン 133 I/O — User I/O (Bank 1)
ピン 134 I/O — User I/O (Bank 1)
ピン 135 I/O — User I/O (Bank 1)
ピン 136 VCCINT — Core supply 1.5V
ピン 137 I/O — User I/O (Bank 1)
ピン 138 I/O — User I/O (Bank 1)
ピン 139 I/O — User I/O (Bank 1)
ピン 140 GND — Ground
ピン 141 I/O — User I/O (Bank 1)
ピン 142 I/O — User I/O (Bank 1)
ピン 143 I/O — User I/O (Bank 1)
ピン 144 I/O — User I/O (Bank 1)

主な用途

EP1C6T144I7 の用途: 7 件s: Industrial Motor Control, Legacy Telecom Interface Cards, Low-Cost Video Processing Pipelines, FPGA Development and Educational Platforms, Factory Automation and Protocol Bridging, Legacy CPLD-to-FPGA Migration Designs, Data Acquisition Front-End.

🏭

Industrial Motor Control

The EP1C6T144I7 fits industrial motor control applications where the 5,980 logic elements implement PID loop computation, PWM generation, and encoder decoding in a single device. The 1.5V core at speed grade 7 delivers up to 250 MHz operation, sufficient for 100 kHz current-loop update rates on 3-phase BLDC or stepper drives. Two on-chip PLLs generate the precise switching frequencies and quadrature-clock domains required by field-oriented control. The 144-LQFP package and -40C to +100C industrial temperature rating match the factory-floor thermal environment and the LQFP's rework-friendly outline eases field-service depanelization. Designers typically pair this FPGA with external gate drivers and isolated current shunts, while keeping the JTAG port accessible for in-system configuration updates.

🌐

Legacy Telecom Interface Cards

The EP1C6T144I7 is widely deployed in legacy telecom line cards and baseband processing cards where its 98 user I/Os interface directly to TDM buses, framer ICs, and T1/E1 transceivers. The 92,160 bits of embedded SRAM implement elastic stores, jitter attenuators, and small packet buffers without external memory, simplifying the BOM. LVTTL/LVCMOS I/O standards align with the 3.3V logic levels typical of telecom backplanes, while the two PLLs derive multiple clock domains from a single board-level reference. The industrial temperature rating and 144-LQFP plastic package suit indoor central-office environments, and the JTAG configuration mode supports in-service firmware updates via boundary-scan. Migration paths should retain the 144-LQFP footprint so the same PCB can accept Cyclone I, Cyclone II EP2C6, or even Cyclone IV EP4CE6 with proper pinout remapping.

📺

Low-Cost Video Processing Pipelines

In entry-level video processing pipelines the EP1C6T144I7 functions as a frame-rate converter, scaler, or overlay compositor for digital signage and industrial camera systems. Its 5,980 LEs implement modest SDRAM controllers, color-space converters, and timing generators for resolutions up to 480p/576p without taxing the silicon. The 92,160-bit embedded memory acts as a line buffer, eliminating the need for an external SRAM in many simple pipelines. The 144-LQFP package is friendly to multi-layer video-PCB stack-ups where controlled-impedance routing for parallel RGB or BT.656 buses is required. Designers typically pair this FPGA with a video ADC/DAC and an SDRAM chip, using the two PLLs to derive pixel clocks from an external 27 MHz reference.

🧩

FPGA Development and Educational Platforms

The EP1C6T144I7 is a long-standing reference device for university FPGA labs and educational development boards because the 144-LQFP package allows students to probe every pin with standard oscilloscope clips and 0.1 inch headers. The 5,980 LEs provide enough headroom to teach state machines, FIFO design, soft-core CPU instantiation, and basic DSP filtering within a single semester. The Quartus II Web Edition toolchain (free of charge) supports this device end-to-end, including SOPC Builder for Nios II soft-core integration. With two PLLs and 98 user I/Os, students can experiment with multiple clock domains and rich peripheral interfaces (UART, SPI, I2C, VGA) on the same board. The industrial temperature rating protects against lab mishaps such as accidental soldering-iron heat exposure.

🏭

Factory Automation and Protocol Bridging

The EP1C6T144I7 is well-suited for factory-automation protocol bridges that translate between Profibus, Modbus RTU, CAN, and Ethernet/IP, where the 98 user I/Os drive multiple isolated RS-485 transceivers and a parallel bus to local sensors. Its 5,980 LEs comfortably host UART, SPI, and I2C soft-cores concurrently, while the on-chip M4K blocks back the protocol stack memory without external SRAM. The two PLLs allow independent clock generation for each fieldbus segment, eliminating the need for multiple oscillators on the BOM. The industrial -40C to +100C rating handles cabinet temperature swings near motor drives, and the LQFP-144 package supports hand-debug rework in low-volume bridge products.

🔧

Legacy CPLD-to-FPGA Migration Designs

Engineers migrating from legacy MAX7000/MAX3000 CPLD designs to a low-density FPGA find the EP1C6T144I7 a natural step-up target because the 144-LQFP package closely matches the footprint of many high-pin-count CPLDs. The 5,980 LEs deliver roughly 10x the logic capacity of a typical 256-macrocell CPLD while preserving a familiar JTAG programming interface. The 92,160-bit embedded memory replaces external lookup-table ROM hacks, and the two PLLs enable fine-grained clock-domain control absent in CPLDs. Cyclone I's 1.5V core and 3.3V-tolerant I/O ease migration from 5V-tolerant MAX7000 designs by inserting series resistors or level shifters as needed. Drop-in LQFP-144 variants (EP1C6T144I7N, EP1C6T144I6N) allow hot-grade selection without re-spinning the PCB.

🖥️

Data Acquisition Front-End

In multi-channel data acquisition front-ends the EP1C6T144I7 sits between high-speed ADCs and an embedded controller, performing channel multiplexing, gain/offset calibration, and digital filtering in real time. Its 98 user I/Os accept parallel LVCMOS/LVTTL ADC buses up to 14 bits wide while the 5,980 LEs run FIR/IIR filters and decimation stages. The 92,160-bit embedded memory implements circular sample buffers, and the two PLLs derive ADC sample clocks and controller interface clocks independently. The 144-LQFP plastic package simplifies thermal management on densely-populated DAQ PCBs, and the industrial temperature grade accommodates benchtop-to-rack transitions in lab and field deployments.

What is the logic element count of the EP1C6T144I7?
The EP1C6T144I7 contains 5,980 logic elements distributed across 598 logic array blocks (LABs). According to the Cyclone device family datasheet, each LE uses a 4-input look-up table plus a programmable register, and the LABs each contain 10 LEs plus dedicated carry and control logic. This density targets low-to-mid complexity glue logic and small DSP pipelines.
What package does the EP1C6T144I7 use and how many pins?
The EP1C6T144I7 ships in a 144-pin LQFP (also referenced as TQFP-144) with a 22x22 mm body and 0.5 mm lead pitch. The LQFP form factor allows hand-soldering and standard SMT rework, unlike BGA packages that require X-ray inspection. This package is the same outline as other Cyclone EP1C6T144 variants.
Is the EP1C6T144I7 still in production?
The EP1C6T144I7 is in last-time-buy / obsolete status from Intel (formerly Altera) because the Cyclone I family was superseded by Cyclone II, III, IV, and Cyclone 10. Authorized distributor stock remains available, but new fab capacity is not being added. For new designs, consider Cyclone IV E or Cyclone 10 LP as successors, noting these require PCB redesign because pinouts differ.
What is the operating temperature range of EP1C6T144I7?
The EP1C6T144I7 operates from -40C to +100C (industrial temperature grade), which is encoded in the 'I7' suffix (I = industrial, 7 = speed grade). According to the Cyclone family datasheet, this range is suitable for factory automation, outdoor telecom equipment, and automotive under-hood-adjacent applications, but not for full automotive Grade 1 (-40C to +125C) mission profiles.
How much embedded memory does the EP1C6T144I7 have?
The EP1C6T144I7 integrates 92,160 bits of embedded SRAM organized as M4K memory blocks. Each M4K block can be configured as single-port RAM, dual-port RAM, FIFO, or ROM in widths up to 36 bits per the Cyclone device handbook. This on-chip memory eliminates the need for external SRAM in many small data-pipeline designs.
Where can I download the EP1C6T144I7 datasheet PDF?
The EP1C6T144I7 datasheet is hosted on the Intel/Altera document archive and several distributor document libraries. A commonly referenced source is https://www.alldatasheet.com/datasheet-pdf/pdf/131487/ALTERA/EP1C6T144I7.html and the Octopart datasheet portal at https://octopart.com/datasheet/intel/EP1C6T144I7. Always cross-check revision letters against the device top mark.
What is the pinout for the EP1C6T144I7 144-LQFP?
The EP1C6T144I7 pinout is documented in the Cyclone device handbook. Key pins include VCCINT (core 1.5V), VCCIO (I/O bank supplies), GND, configuration pins (MSEL, nCE, nCONFIG, nSTATUS, CONF_DONE, DCLK), JTAG pins (TCK, TMS, TDI, TDO), user I/O banks (per IO bank), and the dual PLL pins (CLK1..CLK4, PLL_ENA). For the full 144-pin map refer to the datasheet pin tables.
EP1C6T144I7 vs EP1C6T144C6 - what is the difference?
The EP1C6T144I7 and EP1C6T144C6 share the same Cyclone I silicon and 144-LQFP package, differing only in temperature grade and speed grade. The I7 variant offers -40C to +100C industrial temperature with speed grade 7, while the C6 variant offers 0C to +85C commercial temperature with speed grade 6. For industrial applications the I7 is the correct choice.
What is the best drop-in replacement for EP1C6T144I7?
The best drop-in replacements for EP1C6T144I7 are other Cyclone I EP1C6T144 variants in the same 144-LQFP footprint, including EP1C6T144I7N (lead-free / RoHS), EP1C6T144I6N (speed grade 6, lead-free), and EP1C6T144C8N (commercial grade 8). For applications requiring RoHS compliance the I7N variant is the cleanest substitution because pinout and I/O count are identical.
What is the price of the EP1C6T144I7?
The EP1C6T144I7 was priced at approximately $34.97 per unit at qty 1 as of 2026-09-06, with volume discounts bringing unit cost to roughly $19.40 at qty 1000 per Heisener distributor data. Because the part is in last-time-buy lifecycle status, prices fluctuate widely with remaining authorized inventory; quotes from authorized distributors or brokers should be validated against current stock.
Is the EP1C6T144I7 lead-free / RoHS compliant?
The EP1C6T144I7 is non-RoHS because it uses a lead-bearing finish (suffix indicates Pb). For RoHS-compliant designs in the same footprint, select EP1C6T144I7N (Pb-free NiPdAu finish) which is pin-compatible and electrically identical. The 'N' suffix denotes lead-free per JEDEC JESD97, while keeping the same silicon die and 144-LQFP package.
What is the difference between EP1C6T144I7 and EP1C6T144I7N?
The EP1C6T144I7 and EP1C6T144I7N share the same Cyclone I silicon, the same 144-LQFP package, and identical electrical specifications. The only difference is lead finish: the I7 uses SnPb (non-RoHS) and the I7N uses lead-free NiPdAu plating (RoHS-compliant per EU Directive 2011/65/EU). For new RoHS-compliant designs, the I7N variant is the appropriate substitution.
What are the key specifications engineers should know about the EP1C6T144I7?
The EP1C6T144I7 is a Cyclone I FPGA with 5,980 logic elements, 598 LABs, 92,160 bits of embedded SRAM, 98 user I/Os, two PLLs, and a 1.5V core operating at up to 250 MHz in speed grade 7. The 144-LQFP package supports JTAG, Active Serial, and Passive Serial configuration. It operates across -40C to +100C industrial temperature and is built on a 130nm process.
What is the cross-brand equivalent for the EP1C6T144I7?
There is no true cross-brand drop-in equivalent for the EP1C6T144I7 because the Cyclone I silicon, the Quartus toolchain, and the IP cores are Intel/Altera-proprietary. Cross-brand FPGA alternatives (such as Xilinx Spartan-3 or Lattice ECP2) require different footprints, different I/O bank voltages, and different JTAG/selectMAP configuration schemes, so they are NOT drop-in replacements. Designers should stay within the Cyclone family for true drop-in behavior.

エンジニアリング参考データ: EP1C6T144I7 — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose the EP1C6T144I7 when you need a low-density Cyclone I FPGA with 5,980 LEs, 98 user I/Os, and the industrial -40C to +100C temperature range in a hand-solderable 144-LQFP package. Switch to EP1C6T144I7N if your design must meet RoHS - the silicon is identical. Switch to EP1C6T144I6N if your timing budget can tolerate a ~12% lower Fmax in exchange for slightly better availability and price. Switch to EP1C6T144C8N if your product operates only in commercial 0-85C environments and you want the highest speed grade. For new designs requiring more logic, route to Cyclone IV EP4CE6 or Cyclone 10 LP 10CL006 - but these require PCB redesign because pinouts differ from the Cyclone I EP1C6 family.

代替品との比較

パラメータ この製品 EP1C6T144I7N EP1C6T144I6N EP1C6T144C8N EP1C6T144C6N EP1C6T144C7N EP1C6T14417N
Brand Intel (formerly Altera) Intel Intel Intel Intel Intel Intel
Package 144-LQFP (T144) 144-LQFP (T144) - same 144-LQFP (T144) - same 144-LQFP (T144) - same 144-LQFP (T144) - same 144-LQFP (T144) - same 144-LQFP (T144) - same
Logic Elements 5,980 LE 5,980 LE 5,980 LE 5,980 LE 5,980 LE 5,980 LE 5,980 LE
User I/Os 98 98 98 98 98 98 98
Operating Temperature -40C to +100C (Industrial) -40C to +100C (Industrial) -40C to +100C (Industrial) 0C to +85C (Commercial) 0C to +85C (Commercial) 0C to +85C (Commercial) -40C to +100C (Industrial)
Speed Grade 7 7 6 8 6 7 7
Lead-Free / RoHS No (SnPb finish) Yes (RoHS) Yes (RoHS) Yes (RoHS) Yes (RoHS) Yes (RoHS) Yes (RoHS)
Embedded Memory 92,160 bits 92,160 bits 92,160 bits 92,160 bits 92,160 bits 92,160 bits 92,160 bits
PLLs 2 2 2 2 2 2 2

主な差別化要因

  • RoHS lead-free finish variant available in identical footprint (vs EP1C6T144I7N)
  • Industrial temperature grade vs commercial variants (vs EP1C6T144C8N)
  • Speed grade 7 vs lower Fmax alternatives (vs EP1C6T144I6N)

設計ノート

The EP1C6T144I7 requires two supply rails: VCCINT (1.5V core) and four VCCIO banks (typically 3.3V for LVTTL). Place 0.1uF ceramic decoupling capacitors as close as possible to every VCCINT and VCCIO pin, and add bulk 10uF tantalum or ceramic capacitors at each supply rail entry point. According to the Cyclone device handbook, inrush during configuration can spike above 1A on VCCINT for several milliseconds, so the 1.5V regulator must source at least 1.5A peak. A ferrite bead or pi-filter on the 1.5V rail improves margin against switching-noise coupling from adjacent digital circuitry.

Although the LQFP-144 package has a theta_JA around 30 C/W, the EP1C6T144I7 typically dissipates less than 1W even at 100% logic utilization because the 130nm Cyclone I process is very efficient. Thermal management is rarely a concern unless the device is operated in a sealed enclosure with no airflow. Estimated: at 0.8W dissipation and 30 C/W theta_JA, junction rise above ambient is about 24 C, well within the 100 C industrial max. Designers should still provide a top-side copper pour connected to GND to assist heat spreading.

Route all configuration-related pins (nCONFIG, nSTATUS, CONF_DONE, DCLK, MSEL0, MSEL1) with short traces and avoid routing them adjacent to high-speed switching signals to prevent configuration errors. The JTAG chain (TCK, TMS, TDI, TDO) should include a 1k pull-down on TCK and 10k pull-ups on TMS and TDI per IEEE 1149.1 best practices. Maintain continuous ground reference under the LQFP-144 leads to control impedance, and use a 4-layer PCB stack-up with dedicated power and ground planes for designs above 50 MHz internal operation.

Do not confuse the EP1C6T144I7 (industrial, speed grade 7, SnPb) with the EP1C6T144I7N (industrial, speed grade 7, lead-free RoHS) when ordering; both share the same datasheet but only the 'N' suffix is RoHS-compliant. Also, the Cyclone I device family does NOT support passive parallel async configuration - use JTAG, Active Serial (EPCS1/EPCS4), or Passive Serial (with external host) only. Attempting to use unsupported modes will result in CONF_DONE never asserting. Lastly, MSEL pins must be tied to specific patterns per configuration mode - consult the Cyclone handbook Table 12 for the correct pull-up/pull-down combinations.

コンプライアンス情報

RoHS
Non Compliant
REACH
Compliant
AEC-Q100
Not Applicable
鉛フリー
No
ハロゲンフリー
Unknown
紛争鉱物
Compliant

EP1C6T144I7 uses SnPb lead-bearing plating (non-RoHS); for RoHS compliance use EP1C6T144I7N (NiPdAu lead-free finish). AEC-Q100 is not applicable because this is an FPGA, not an automotive-qualified IC. REACH compliance maintained by Intel/Altera substance disclosure.

データ検証日: 2026-09-06 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

EP1C6T144I7 EP1C6T144I7 datasheet Altera Cyclone EP1C6 FPGA 144-LQFP FPGA 5980 logic elements Cyclone I FPGA 1.5V core EP1C6T144I7 pinout LQFP-144 EP1C6T144I7 industrial temperature EP1C6T144I7 motor control FPGA EP1C6T144I7 vs EP1C6T144I7N EP1C6T144I7 vs EP1C6T144C6 EP1C6T144I7 drop-in replacement buy EP1C6T144I7 online what is the logic element count of EP1C6T144I7 is EP1C6T144I7 RoHS compliant Cyclone I LQFP-144 legacy FPGA

関連部品&用語

Intel Altera EP1C6T144I7 EP1C6T144I7N EP1C6T144I6N EP1C6T144C8N FPGA Field Programmable Gate Array Cyclone Cyclone I programmable logic device logic array block LAB logic element LE M4K memory block PLL JTAG IEEE 1149.1 Quartus LQFP-144 TQFP surface mount industrial temperature grade LVTTL LVCMOS VCCINT VCCIO Active Serial configuration RoHS SnPb NiPdAu AEC-Q100 REACH lead-free DSP soft-core CPU Nios II factory automation motor control
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