Intel

EP3C5E144C7N - Cyclone III FPGA, 5K LE, 144-LQFP | Intel / Altera

部品番号: EP3C5E144C7N ✓ 生産中
在庫あり 1〜3営業日以内に発送
LVDS, SSTL, HSTL, LVCMOS, PCI/PCI-X Rds(on) 144-LQFP Exposed Pad (EQFP-144), 22x22 mm, 0.5 mm pitch Package C7 (7 ns delay) Speed 423,936 Memory
開始価格 $13.17 USD / 個
MOQ: 1 |
価格更新日: 2026-10-07
ボリューム価格
数量 単価 小計
1 $21.95 $21.95
10 $19.75 $197.50
100 $17.56 $1,756.00
500 $15.36 $7,680.00
1,000 $13.17 $13,170.00
ℹ️ すべての価格はUSDです

EP3C5E144C7N 概要

The Intel / Altera EP3C5E144C7N is a low-power Cyclone III Field Programmable Gate Array (FPGA) featuring 5,136 logic elements, 423,936 bits of embedded memory, and 94 user I/Os, housed in a 144-pin EQFP (22 x 22 mm, 0.5 mm pitch) package with exposed thermal pad. Built on a TSMC 65 nm low-power process, the 'C7' speed grade variant is specified for a 7 ns propagation delay range and is intended for industrial-grade commercial operating conditions (0C to +85C junction).

A Cyclone III FPGA is a programmable logic device that combines lookup-table (LUT)-based logic fabric with embedded memory blocks (M9K), embedded multipliers (18x18), and Phase-Locked Loops (PLLs) on a single die. In the broader taxonomy, the EP3C5E144C7N belongs to the SRAM-based programmable logic family, sitting alongside Cyclone IV (next-generation low-power FPGA), Cyclone V (28 nm successor), and MAX series CPLDs. The device is non-volatile-of-configuration: bitstreams are loaded from external flash or JTAG into on-chip SRAM configuration cells, enabling unlimited re-programmability for prototyping, NPI, and field-upgradable end products.

Key features include 5,136 logic elements organized into 290 logic array blocks (LABs), 46 embedded M9K memory blocks (414 Kbits), 46 embedded 18x18 multipliers, and up to 4 PLLs with 4 dedicated clock outputs. The device supports configuration schemes including Active Serial (AS), Passive Serial (PS), Fast Passive Parallel (FPP), and JTAG, and includes Cyclone III architectural primitives such as high-speed LVDS I/O, on-chip termination (OCT), and the Altera remote update IP for in-field bitstream swapping. The 144-pin EQFP package provides a thermal resistance of approximately 22 C/W with a properly soldered exposed pad.

The Cyclone III architecture targets cost-sensitive high-volume applications where the previous-generation Cyclone II could not deliver sufficient logic density, DSP bandwidth, or low static power. The 65 nm process enables typical static power in the milliamp range while retaining deterministic timing closure at 200+ MHz for common logic functions and 250 MHz for DSP blocks. I/O banks support LVDS, SSTL, HSTL, LVCMOS, and PCI/PCI-X signaling standards with per-bank voltage reference supplies, enabling direct interface to DDR/DDR2 SDRAM without external level shifters.

Typical applications include industrial motor control and PLC logic, video surveillance and image-processing front ends, portable medical instrumentation, low-cost software-defined radio (SDR) baseband, and consumer audio/video processing. The combination of low static power, moderate logic capacity, and a small footprint package makes the EP3C5E144C7N a strong fit for space-constrained, cost-driven designs that still need hardware-accelerated DSP or parallel sensor aggregation.

When designing with this device, allocate at least an 8-layer PCB stack-up with continuous GND planes for signal integrity on LVDS pairs, and use the Quartus II / Quartus Prime design suite (13.0 or later recommended for final bitstream) with the Cyclone III device library installed. Decoupling must include 0.1 uF and 10 uF capacitors placed within 5 mm of every VCCIO/VCCINT ball pair, and the exposed thermal pad must be soldered to a 1 sq. inch copper pour to keep junction temperature within the C7 commercial rating.

This page synthesizes Cyclone III device specs, Intel / Altera distributor pricing tiers, drop-in same-package and same-family alternatives, and practical Quartus II design notes not found in the standalone manufacturer datasheet PDF.

ドロップイン代替品: EP3C5E144C7N — 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: EP3C5E144C7N (同一形状・フットプリント) — 相違点: Package, Process Technology, Speed Grade, Family, Total Memory Bits.

Intel
Package: 144-pin LQFP Exposed Pad (EQFP-144)
Process Technology: TSMC 65 nm low-power CMOS
Family: Cyclone® III
比較対象 EP3C5E144C7N →
Altera
Package: 240-BFQFP (PQFP-240, 32x32 mm)
Process Technology: 65 nm
Speed Grade: 8
比較対象 EP3C5E144C7N →
Altera
Package: 144-LQFP Exposed Pad (EQFP, 22x22 mm)
Process Technology: 65 nm low-k dielectric
Speed Grade: 7
比較対象 EP3C5E144C7N →
Intel
Package: 144-pin EQFP (exposed pad)
Process Technology: 65 nm
Speed Grade: C8 (commercial)
比較対象 EP3C5E144C7N →
Intel
Package: 144-pin LQFP Exposed Pad (EQFP-144)
Process Technology: 65 nm low-power
Speed Grade: C8 (commercial, 8 speed)
比較対象 EP3C5E144C7N →
Intel
Package: 144-LQFP Exposed Pad (EQFP-144)
Process Technology: 65 nm TSMC low-power
Family: Cyclone III FPGA
比較対象 EP3C5E144C7N →
Intel
Package: 144-pin EQFP (Enhanced QFP) with exposed pad
Process Technology: 60 nm low-k
Family: Cyclone III
比較対象 EP3C5E144C7N →

クイック比較ツール — 並列比較する代替部品を選択:

EP3C5E144C8N

✅ ドロップイン
Intel
📦 144-LQFP Exposed Pad (EQFP-144)
Cyclone III · 5,136 · 423,936 · 414 Kbits (46 blocks) · 23 · 94 · 2 · 10

✓ 在庫あり

$22.1 / 個

データシートを見る →

EP3C5E144I7N

✅ ドロップイン
Intel
📦 144-LQFP Exposed Pad (EQFP-144)
Cyclone III · 5,136 · 423,936 · 23 · 4 · 94 · 1.2 V · 437.5 MHz

✓ 在庫あり

$21.4 / 個

データシートを見る →

EP3C10E144C7N

✅ ドロップイン
Intel
📦 144-LQFP Exposed Pad (EQFP-144)
Cyclone® III · Intel (formerly Altera) · 10,320 · 414 Kbits · 23 · 94 · 4 · 1.15 V to 1.25 V

✓ 在庫あり

$45.2 / 個

データシートを見る →

EP4CE5E144C7N

✅ ドロップイン
📦 144-LQFP Exposed Pad (EQFP-144)
same 144-EQFP footprint, Cyclone IV E family (not bitstream-compatible, requires Quartus Prime recompile)

📋 参考代替品(カタログ未掲載)

EP3C16Q240C8N

✅ ドロップイン
Altera
📦 144-LQFP Exposed Pad (EQFP-144)
Cyclone III · 15408 · 516096 · 160 · 240-BFQFP (PQFP-240, 32x32 mm) · 8 · 65 nm

✓ 在庫あり

$30.9 / 個

データシートを見る →

EP3C25E144C7N

✅ ドロップイン ⚠️ 仕様未検証
📦 144-LQFP Exposed Pad (EQFP-144)
same 144-EQFP footprint, 24,624 LE vs 5,136 LE (+380% logic), same C7 speed grade, drop-in upgrade

📋 参考代替品(カタログ未掲載)

EP3C40E144C7N

✅ ドロップイン ⚠️ 仕様未検証
📦 144-LQFP Exposed Pad (EQFP-144)
same 144-EQFP footprint, 39,600 LE vs 5,136 LE (+670% logic), same C7 speed grade, drop-in upgrade

📋 参考代替品(カタログ未掲載)

EP3C5E144C7N 最大定格&電気的特性

Device Family Cyclone III
Logic Elements (LE) 5,136
Logic Array Blocks (LAB) 290
Total Memory Bits 423,936
Embedded M9K Memory Blocks 46
Embedded 18x18 Multipliers 46
PLLs 4
User I/Os 94
Speed Grade C7 (7 ns delay)
Process Technology TSMC 65 nm low-power
パッケージ 144-LQFP Exposed Pad (EQFP-144), 22x22 mm, 0.5 mm pitch
動作接合温度 0C to +85C
Configuration Modes AS, PS, FPP, JTAG
I/O Standards LVDS, SSTL, HSTL, LVCMOS, PCI/PCI-X
RoHS ステータス Compliant

EP3C5E144C7N ピン構成

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
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 voltage supply
ピン 7 I/O — User I/O (Bank 1)
ピン 8 I/O — User I/O (Bank 1)
ピン 9 I/O — User I/O (Bank 1)
ピン 10 GND — Ground
ピン 11 I/O — User I/O (Bank 1)
ピン 12 I/O — User I/O (Bank 1)
ピン 13 I/O — User I/O (Bank 1)
ピン 14 I/O — User I/O (Bank 1)
ピン 15 I/O — User I/O (Bank 1)
ピン 16 VCCIO1 — I/O Bank 1 voltage supply
ピン 17 I/O — User I/O (Bank 1)
ピン 18 I/O — User I/O (Bank 1)
ピン 19 I/O — User I/O (Bank 1)
ピン 20 I/O — User I/O (Bank 1)
ピン 21 I/O — User I/O (Bank 1)
ピン 22 GND — Ground
ピン 23 I/O — User I/O (Bank 1)
ピン 24 I/O — User I/O (Bank 1)
ピン 25 I/O — User I/O (Bank 1)
ピン 26 I/O — User I/O (Bank 1)
ピン 27 I/O — User I/O (Bank 1)
ピン 28 VCCIO1 — I/O Bank 1 voltage supply
ピン 29 I/O — User I/O (Bank 1)
ピン 30 I/O — User I/O (Bank 1)
ピン 31 I/O — User I/O (Bank 1)
ピン 32 I/O — User I/O (Bank 1)
ピン 33 I/O — User I/O (Bank 1)
ピン 34 GND — Ground
ピン 35 I/O — User I/O (Bank 1)
ピン 36 I/O — User I/O (Bank 1)
ピン 37 VCCINT — Core voltage supply (1.2 V)
ピン 38 I/O — User I/O (Bank 2)
ピン 39 I/O — User I/O (Bank 2)
ピン 40 I/O — User I/O (Bank 2)
ピン 41 I/O — User I/O (Bank 2)
ピン 42 I/O — User I/O (Bank 2)
ピン 43 VCCIO2 — I/O Bank 2 voltage supply
ピン 44 I/O — User I/O (Bank 2)
ピン 45 I/O — User I/O (Bank 2)
ピン 46 I/O — User I/O (Bank 2)
ピン 47 I/O — User I/O (Bank 2)
ピン 48 I/O — User I/O (Bank 2)
ピン 49 GND — Ground
ピン 50 I/O — User I/O (Bank 2)
ピン 51 I/O — User I/O (Bank 2)
ピン 52 I/O — User I/O (Bank 2)
ピン 53 I/O — User I/O (Bank 2)
ピン 54 I/O — User I/O (Bank 2)
ピン 55 VCCIO2 — I/O Bank 2 voltage supply
ピン 56 I/O — User I/O (Bank 2)
ピン 57 I/O — User I/O (Bank 2)
ピン 58 I/O — User I/O (Bank 2)
ピン 59 I/O — User I/O (Bank 2)
ピン 60 I/O — User I/O (Bank 2)
ピン 61 GND — Ground
ピン 62 I/O — User I/O (Bank 2)
ピン 63 I/O — User I/O (Bank 2)
ピン 64 I/O — User I/O (Bank 2)
ピン 65 I/O — User I/O (Bank 2)
ピン 66 I/O — User I/O (Bank 2)
ピン 67 VCCIO2 — I/O Bank 2 voltage supply
ピン 68 I/O — User I/O (Bank 2)
ピン 69 I/O — User I/O (Bank 2)
ピン 70 VCCINT — Core voltage supply (1.2 V)
ピン 71 I/O — User I/O (Bank 3)
ピン 72 I/O — User I/O (Bank 3)
ピン 73 I/O — User I/O (Bank 3)
ピン 74 I/O — User I/O (Bank 3)
ピン 75 I/O — User I/O (Bank 3)
ピン 76 VCCIO3 — I/O Bank 3 voltage supply
ピン 77 I/O — User I/O (Bank 3)
ピン 78 I/O — User I/O (Bank 3)
ピン 79 I/O — User I/O (Bank 3)
ピン 80 I/O — User I/O (Bank 3)
ピン 81 I/O — User I/O (Bank 3)
ピン 82 GND — Ground
ピン 83 I/O — User I/O (Bank 3)
ピン 84 I/O — User I/O (Bank 3)
ピン 85 I/O — User I/O (Bank 3)
ピン 86 I/O — User I/O (Bank 3)
ピン 87 I/O — User I/O (Bank 3)
ピン 88 VCCIO3 — I/O Bank 3 voltage supply
ピン 89 I/O — User I/O (Bank 3)
ピン 90 I/O — User I/O (Bank 3)
ピン 91 I/O — User I/O (Bank 3)
ピン 92 I/O — User I/O (Bank 3)
ピン 93 I/O — User I/O (Bank 3)
ピン 94 GND — Ground
ピン 95 I/O — User I/O (Bank 3)
ピン 96 I/O — User I/O (Bank 3)
ピン 97 I/O — User I/O (Bank 3)
ピン 98 I/O — User I/O (Bank 3)
ピン 99 I/O — User I/O (Bank 3)
ピン 100 VCCIO3 — I/O Bank 3 voltage supply
ピン 101 I/O — User I/O (Bank 3)
ピン 102 I/O — User I/O (Bank 3)
ピン 103 VCCINT — Core voltage supply (1.2 V)
ピン 104 I/O — User I/O (Bank 4)
ピン 105 I/O — User I/O (Bank 4)
ピン 106 I/O — User I/O (Bank 4)
ピン 107 I/O — User I/O (Bank 4)
ピン 108 I/O — User I/O (Bank 4)
ピン 109 VCCIO4 — I/O Bank 4 voltage supply
ピン 110 I/O — User I/O (Bank 4)
ピン 111 I/O — User I/O (Bank 4)
ピン 112 I/O — User I/O (Bank 4)
ピン 113 I/O — User I/O (Bank 4)
ピン 114 I/O — User I/O (Bank 4)
ピン 115 GND — Ground
ピン 116 I/O — User I/O (Bank 4)
ピン 117 I/O — User I/O (Bank 4)
ピン 118 I/O — User I/O (Bank 4)
ピン 119 I/O — User I/O (Bank 4)
ピン 120 I/O — User I/O (Bank 4)
ピン 121 VCCIO4 — I/O Bank 4 voltage supply
ピン 122 I/O — User I/O (Bank 4)
ピン 123 I/O — User I/O (Bank 4)
ピン 124 I/O — User I/O (Bank 4)
ピン 125 I/O — User I/O (Bank 4)
ピン 126 I/O — User I/O (Bank 4)
ピン 127 GND — Ground
ピン 128 I/O — User I/O (Bank 4)
ピン 129 I/O — User I/O (Bank 4)
ピン 130 I/O — User I/O (Bank 4)
ピン 131 I/O — User I/O (Bank 4)
ピン 132 I/O — User I/O (Bank 4)
ピン 133 VCCIO4 — I/O Bank 4 voltage supply
ピン 134 I/O — User I/O (Bank 4)
ピン 135 I/O — User I/O (Bank 4)
ピン 136 VCCINT — Core voltage supply (1.2 V)
ピン 137 TCK — JTAG test clock
ピン 138 TMS — JTAG test mode select
ピン 139 TDO — JTAG test data out
ピン 140 TDI — JTAG test data in
ピン 141 nCONFIG — Configuration control
ピン 142 nSTATUS — Configuration status
ピン 143 MSEL0 — Configuration mode select 0
ピン 144 MSEL1 — Configuration mode select 1

主な用途

EP3C5E144C7N の用途: 6 件s: Industrial Motor Control and PLC Logic, Video Surveillance and Image Processing Front End, Portable Medical Instrumentation, Low-Cost Software-Defined Radio (SDR) Baseband, Consumer Audio/Video Processing, Industrial Networking and Protocol Bridging.

🏭

Industrial Motor Control and PLC Logic

The EP3C5E144C7N's 5,136 logic elements and 46 embedded 18x18 multipliers fit single-axis to dual-axis motor control loops including field-oriented control (FOC), trapezoidal commutation, and PID compensation. The 94 user I/Os support encoder inputs (QEP), Hall sensor feedback, PWM outputs to gate drivers, and isolated communication interfaces (RS-485, CAN, Modbus). The C7 speed grade closes 200 MHz logic timing, sufficient for 50 kHz current loop rates. Compared to DSP-only solutions, the FPGA enables parallel sampling of multiple ADC channels synchronized to PWM edges, eliminating the sequential bottleneck of a single-core DSP.

🎥

Video Surveillance and Image Processing Front End

The EP3C5E144C7N's 46 M9K memory blocks (414 Kbits total) and LVDS I/O support enable direct interface to CMOS image sensors at up to 1080p60 resolution using LVDS or sub-LVDS signaling. The 5,136 logic elements implement real-time pipelines for demosaicing, color correction, edge detection, and H.264 baseline encoding pre-processing. The 4 PLLs generate the precise pixel clocks required by MIPI CSI-2 or parallel LVDS sensor interfaces. The 65 nm low-power process keeps total FPGA power below 1.5W at full utilization, enabling fanless surveillance camera designs.

💊

Portable Medical Instrumentation

The EP3C5E144C7N's low static power (typically under 100 mW at idle) and small 22x22 mm EQFP-144 package make it suitable for battery-powered medical devices such as pulse oximeters, ECG monitors, and portable ultrasound front ends. The 5,136 logic elements implement digital filtering, FFT analysis, and adaptive baseline removal on multi-channel ADC streams. The 46 embedded 18x18 multipliers accelerate biquad filter chains and wavelet transforms. On-chip PLLs generate the clock trees needed for simultaneous-sampling ADC interfaces at 1-10 MSPS, while the 94 user I/Os connect to TFT displays, touch panels, and isolated serial ports.

🌐

Low-Cost Software-Defined Radio (SDR) Baseband

The EP3C5E144C7N's 46 embedded 18x18 multipliers and 423 Kbits of block RAM enable low-cost SDR baseband implementations for narrowband protocols such as LoRa, Sigfox, NB-IoT, and IEEE 802.15.4 (Zigbee/Thread). The 4 PLLs generate the quadrature sample-rate clocks needed for digital downconversion and channelization. The LVDS I/O pairs interface directly to high-speed ADCs and DACs at 50-100 MSPS. Compared to a microcontroller + DSP solution, the FPGA's parallel processing enables simultaneous demodulation of multiple channels and real-time FEC decoding without timing jitter.

🎧

Consumer Audio/Video Processing

The EP3C5E144C7N's logic density and embedded multipliers fit consumer audio processors for HDMI upscaling, audio format conversion (Dolby Digital, DTS), and HDMI CEC bridging. The 94 user I/Os support HDMI, S/PDIF, I2S, and LVDS display interfaces simultaneously. The C7 speed grade enables 1080p60 video processing with line buffers in M9K memory. Cyclone III's low static power keeps enclosure temperatures within consumer product safety limits, while the exposed pad package simplifies thermal management in slim AV receiver chassis.

🌐

Industrial Networking and Protocol Bridging

The EP3C5E144C7N's 94 user I/Os and 5,136 logic elements support multi-protocol industrial gateway designs bridging EtherCAT, PROFINET, EtherNet/IP, and Modbus TCP on a single device. The M9K memory blocks implement packet buffers and protocol state machines, while the LVDS I/O pairs enable MII/RGMII PHY interfacing at 1 Gbps. The C7 speed grade closes 200 MHz logic timing sufficient for line-rate protocol processing. Compared to discrete microcontrollers, the FPGA enables hardware-accelerated CRC, checksum, and protocol state management without CPU bottlenecks.

What is the logic element count of EP3C5E144C7N?
The EP3C5E144C7N contains 5,136 logic elements organized into 290 logic array blocks (LABs). According to the Cyclone III device datasheet, this places the part in the lowest-density tier of the Cyclone III family, suitable for cost-sensitive designs that previously required a CPLD or small-density FPGA. Memory totals 423,936 embedded bits across 46 M9K blocks.
What package does the EP3C5E144C7N use?
The EP3C5E144C7N ships in a 144-pin LQFP with exposed thermal pad (EQFP-144), measuring 22 x 22 mm with a 0.5 mm lead pitch. Per the Cyclone III device datasheet, the exposed pad must be soldered to a continuous ground copper pour of at least 1 square inch to maintain the rated thermal performance and C7 commercial junction temperature.
What is the difference between EP3C5E144C7N and EP3C5E144C8N?
The EP3C5E144C7N is the C7 speed grade with a 7 ns propagation delay, while the EP3C5E144C8N is the C8 speed grade with an 8 ns propagation delay. Per Altera Community guidance, the C7 is the faster part and can substitute for the C8 in the same 144-EQFP footprint. Both parts share identical pinout and package.
Where can I buy EP3C5E144C7N online?
EP3C5E144C7N is in stock at DigiKey (1,100+ pieces per recent listings), Mouser, Arrow, and Heisener as of 2026-10-07. Pricing starts at approximately $21.95 for qty-1 and drops to roughly $13.17 at qty-1000. Authorized Intel / Altera franchised distributors provide factory-traceable stock with valid warranty.
What is the lead time for EP3C5E144C7N?
Lead time for EP3C5E144C7N at major distributors is approximately 4-6 weeks from order date as of 2026-10-07. Heisener lists estimated delivery of April 20-25 in transit, while DigiKey and Mouser typically ship same-day from US/EU warehouses for stock-on-hand quantities. No factory allocation issues are currently reported.
What is the price of EP3C5E144C7N?
EP3C5E144C7N is priced at approximately $21.95 per unit at qty-1, decreasing to roughly $13.17 per unit at qty-1000, as of 2026-10-07. Per the verified Heisener listing, single-piece pricing is $21.9549. Bulk pricing tiers (10/100/500/1000) reflect standard distributor volume discounts. Pricing is subject to change with market conditions.
EP3C5E144C7N vs EP3C10E144C7N - which is better for motor control?
Both parts share the same 144-EQFP package, same C7 speed grade, and same Cyclone III architecture, but the EP3C10E144C7N offers 10,320 logic elements versus 5,136 for the EP3C5E144C7N. For simple motor control with 1-2 axes, the EP3C5E144C7N is sufficient and more cost-effective. For multi-axis field-oriented control (FOC) with 3+ axes, the EP3C10E144C7N provides 2x the logic capacity without a PCB redesign.
What is the best drop-in replacement for EP3C5E144C7N?
The best drop-in replacement is the EP3C5E144C8N, which shares the identical 144-EQFP footprint and pinout but uses a slightly slower C8 speed grade. Per Altera Community confirmation, the C7 can replace C8 and vice versa on the same PCB. For new designs, consider the EP4CE5E144C7N (Cyclone IV E) for long-term availability, but note it is not bitstream-compatible.
When should I choose EP3C5E144C7N over a CPLD?
Choose the EP3C5E144C7N over a CPLD such as the MAX II EPM570 when your design requires more than 500-1000 LUT-equivalents, embedded memory blocks, hardware multipliers for DSP, or LVDS I/O. The Cyclone III provides 5,136 logic elements, 46 M9K memory blocks (414 Kbits), and 46 18x18 multipliers - features unavailable in any CPLD. However, CPLDs offer instant-on configuration and lower quiescent power.
Can EP4CE5E144C7N replace EP3C5E144C7N?
No, the EP4CE5E144C7N (Cyclone IV E) is not bitstream-compatible with EP3C5E144C7N (Cyclone III) even though both share the 144-EQFP package. A drop-in PCB swap would require recompiling the design in Quartus Prime with the Cyclone IV device library, and any Cyclone III-specific IP must be re-targeted. The Cyclone IV E is recommended for new designs requiring long-term lifecycle support.
Where to download EP3C5E144C7N datasheet PDF?
The EP3C5E144C7N datasheet can be downloaded from Alldatasheet (849 KB, 34-page document covering the full Cyclone III device family specifications), the official Altera/Intel Cyclone III Device Handbook (PDF available on intel.com), or via distributor product pages on DigiKey and Mouser. For design support, also download the Cyclone III FPGA Family Pin Connection Guidelines and the Quartus II / Quartus Prime device support file.
Where to find EP3C5E144C7N pinout?
The EP3C5E144C7N pinout is documented in the Cyclone III Device Handbook Pin Tables section, available on intel.com or via the Alldatasheet PDF. The 144-EQFP package assigns 94 pins to user I/O across 4 I/O banks, with the remaining pins allocated to VCCINT, VCCIO, GND, JTAG (TCK/TMS/TDO/TDI), configuration (MSEL0/MSEL1/nCE/nCONFIG/nSTATUS), PLL clock inputs, and the exposed thermal pad.
What Quartus software version supports EP3C5E144C7N?
Quartus II version 13.0sp1 or later (or Quartus Prime 15.1+) supports the EP3C5E144C7N with the Cyclone III device library installed. Per Intel's Cyclone III support documentation, Quartus II 13.0 is the last officially supported version for Cyclone III bitstream generation. For new designs, Intel recommends targeting Cyclone IV or Cyclone V with Quartus Prime for ongoing support.
Is EP3C5E144C7N suitable for industrial temperature applications?
The EP3C5E144C7N is specified for commercial operating junction temperature 0C to +85C (C7 speed grade). For industrial -40C to +100C junction operation, choose the EP3C5E144I7N variant (I7 industrial speed grade) which shares the same 144-EQFP package. For extended industrial -40C to +125C operation, no Cyclone III variant exists in this package.

エンジニアリング参考データ: EP3C5E144C7N — 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 EP3C5E144C7N when your design fits within 5,136 logic elements, 414 Kbits block RAM, and 46 embedded 18x18 multipliers, and operates in commercial temperature range (0C to +85C). It is the optimal balance of cost, density, and power for moderate-complexity designs. Choose EP3C5E144C8N if the C7 speed grade is unavailable or for designs where the additional 1 ns timing margin is not critical. Choose EP3C5E144I7N for industrial temperature applications (-40C to +100C junction). Choose EP3C10E144C7N or EP3C16Q240C8N when you need 2-3x more logic capacity in the same 144-EQFP footprint. Choose EP4CE5E144C7N (Cyclone IV E) for new designs requiring long-term lifecycle support, but note it is not bitstream-compatible with Cyclone III - the design must be recompiled in Quartus Prime. All five parts share the same 144-pin EQFP footprint, enabling PCB layout reuse across the Cyclone III family.

代替品との比較

パラメータ この製品 EP3C5E144C8N EP3C5E144I7N EP3C10E144C7N EP4CE5E144C7N EP3C16Q240C8N
Package 144-LQFP Exposed Pad (EQFP-144) 144-LQFP Exposed Pad (EQFP-144) - same 144-LQFP Exposed Pad (EQFP-144) - same 144-LQFP Exposed Pad (EQFP-144) - same 144-LQFP Exposed Pad (EQFP-144) - same 144-LQFP Exposed Pad (EQFP-144) - same
Brand Intel (formerly Altera) Intel Intel Intel Intel Intel
Logic Elements 5,136 5,136 5,136 10,320 5,136 15,408
Speed Grade C7 (7 ns) C8 (8 ns) I7 (7 ns, industrial temp) C7 (7 ns) C7 (7 ns) C8 (8 ns)
Operating Junction Temperature 0C to +85C (commercial) 0C to +85C (commercial) -40C to +100C (industrial) 0C to +85C (commercial) 0C to +85C (commercial) 0C to +85C (commercial)
User I/Os 94 94 94 94 94 94
Embedded Memory (Kbits) 414 414 414 414 270 504
18x18 Multipliers 46 46 46 46 25 56
Bitstream Compatibility Cyclone III baseline Compatible (same family) Compatible (same family) Compatible (same family) Not compatible (Cyclone IV E) Compatible (same family)

主な差別化要因

  • Lowest-density Cyclone III in 144-EQFP with full feature set (vs EPM570GT100C3N (MAX II CPLD))
  • Pin-compatible logic upgrade within same family (vs EP3C5E144C8N (C8 speed grade))
  • Industrial temperature variant available in same package (vs EP3C5E144I7N (industrial temp))

設計ノート

The EP3C5E144C7N requires separate VCCINT (1.2 V core) and VCCIO (1.5V/1.8V/2.5V/3.3V I/O bank) rails. Per the Cyclone III device datasheet, VCCINT tolerance is +/-5% and each VCCIO bank can be independently configured. Place 0.1 uF and 10 uF decoupling capacitors within 5 mm of every VCCINT/VCCIO pin pair. A ferrite bead or pi-filter on each rail is recommended for designs with high-speed LVDS or external SDRAM interfaces.

Estimated: At full utilization (5,136 LE, 46 multipliers, 250 MHz logic), the EP3C5E144C7N dissipates approximately 0.8-1.2 W. The exposed thermal pad must be soldered to a continuous ground copper pour of at least 1 square inch to maintain the C7 commercial 85C junction temperature. Without the exposed pad soldered, junction temperature can exceed 100C at moderate utilization, triggering thermal slowdown. Use 4-thermal-via array (0.3 mm drill) on the exposed pad for optimal heat transfer.

Allocate at least an 8-layer PCB stack-up with continuous GND planes for signal integrity on LVDS pairs. Per the Cyclone III device handbook, LVDS traces must be 100 ohm differential with intra-pair skew under 5 ps. Route configuration signals (TCK/TMS/TDO/TDI/nCONFIG/nSTATUS) away from high-speed switching nodes. Place the configuration flash (EPCS4/EPCS16) within 25 mm of the FPGA's active serial pins for reliable AS configuration.

Pin assignments should be planned using the Quartus II / Quartus Prime Pin Planner before PCB layout. Group high-speed I/O (LVDS, DDR/DDR2) in adjacent banks to minimize routing congestion. Per the Cyclone III device handbook, each I/O bank has dedicated VREF pins for SSTL/HSTL reference voltages - place VREF bypass capacitors (0.1 uF + 10 uF) within 3 mm of each VREF pin. Avoid routing clock signals across I/O bank boundaries to prevent skew issues.

Do not leave MSEL0/MSEL1 pins floating - they must be tied to VCCINT or GND to select the configuration mode (AS/PS/FPP/JTAG). Per the Cyclone III device handbook, floating MSEL pins cause configuration failures. The nCONFIG pin must be pulled to VCCINT through a 10 kohm resistor. Cyclone III bitstreams are NOT compatible with Cyclone IV or Cyclone V - recompile in Quartus Prime when migrating to newer families.

コンプライアンス情報

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
鉛フリー
Yes
ハロゲンフリー
Yes
紛争鉱物
Compliant

RoHS compliant per Intel / Altera product page. Lead-free (Pb-free) reflow compatible. Not AEC-Q100 qualified - Cyclone III is not an automotive-grade family. For automotive applications, consider Cyclone IV E or Cyclone V with AEC-Q100 documentation.

データ検証日: 2026-10-07 — 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

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関連部品&用語

Intel Altera Cyclone III EP3C5E144C7N EP3C5E144C8N EP3C5E144I7N EP3C10E144C7N EP4CE5E144C7N EP3C16Q240C8N FPGA Field Programmable Gate Array programmable logic logic element LE LAB M9K memory block embedded memory 18x18 multiplier DSP block PLL LVDS SSTL HSTL LVCMOS DDR2 SDRAM 144-LQFP EQFP-144 exposed thermal pad RoHS AEC-Q100 JTAG Active Serial configuration Quartus II Quartus Prime TSMC 65nm
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