Altera

EP1C3T144C6 - Cyclone I FPGA, 2,910 LEs, 144-TQFP | Altera

部品番号: EP1C3T144C6 ✗ 生産終了
在庫あり 1〜3営業日以内に発送
1.5 V Vdss 144-LQFP (TQFP-144) Package -6 Speed
開始価格 $17.32 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 $26.27 $26.27
10 $23.64 $236.40
100 $21.27 $2,127.00
500 $19.18 $9,590.00
1,000 $17.32 $17,320.00
ℹ️ すべての価格はUSDです

EP1C3T144C6 概要

The Altera (Intel) EP1C3T144C6 is a Cyclone I family Field-Programmable Gate Array (FPGA) housed in a 144-pin TQFP package with 104 user I/Os, built on a 1.5 V core, 0.13 µm SRAM process. It contains 2,910 logic elements arranged in 291 logic array blocks (LABs), supported by 59,904 bits of embedded RAM and a single embedded 18-bit x 18-bit multiplier block. The device is offered in the commercial -6 speed grade and is qualified for 0 °C to +85 °C operation.

An FPGA (Field-Programmable Gate Array) is a reprogrammable logic device that bridges the gap between fixed-function ASICs and discrete glue logic. Architecturally, an FPGA sits within the programmable logic hierarchy as: programmable logic device (PLD) -> FPGA -> SRAM-based FPGA -> Cyclone family. The Cyclone I family specifically targets low-cost, high-volume applications such as digital signal processing bridges, custom peripheral controllers, and protocol converters, offering ASIC-like integration with the design flexibility of in-system programmability.

Key features that distinguish EP1C3T144C6 include 13 M4K RAM blocks (each 4 Kbit plus parity), a configuration scheme supporting JTAG, Active Serial (AS), and Passive Serial (PS) modes with the EPC2 configuration device family, and dual-purpose clock pins that can drive up to 8 global clock networks. The PLLs are not available on the smallest Cyclone I members, and this device contains zero embedded PLLs, so all clock management is handled by global clock trees and dedicated clock pin inputs. I/O standards supported include LVTTL, LVCMOS, SSTL-2, SSTL-3, and PCI, with the TQFP-144 package providing the largest 104-I/O option in the EP1C3 density.

Typical applications span digital video processing front-ends, industrial motor-control state machines, custom bus bridges (e.g., legacy-to-PCI bridging), and prototype ASIC replacement. The Cyclone I architecture is also widely used in cost-sensitive education platforms and reference designs where Quartus II design flow is already in place. The -6 speed grade is the fastest commercial speed grade in the family, suiting timing-critical glue logic.

When designing with the EP1C3T144C6, ensure the 1.5 V core supply is decoupled with 0.1 µF and 10 µF capacitors placed as close to each VCCINT/VCCIO pair as the 144-TQFP pinout allows. JTAG chain integrity must be preserved during in-system programming by buffering TCK with a series resistor to suppress reflections. Designers should verify I/O bank voltage compatibility before assigning pins because the EP1C3T144 has four I/O banks, each capable of supporting a different I/O standard independently.

ドロップイン代替品: EP1C3T144C6 — 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: EP1C3T144C6 (同一形状・フットプリント) — 相違点: Operating Temperature, Package, Speed Grade, Configuration Mode, Mounting Type.

Altera
Operating Temperature: 0°C to +85°C (commercial)
Package: 100-pin TQFP
Speed Grade: 6
比較対象 EP1C3T144C6 →
Intel
Operating Temperature: 0C to +85C (commercial)
Package: 144-pin TQFP (T144)
Speed Grade: C6
比較対象 EP1C3T144C6 →
Intel
Operating Temperature: 0C to +85C (Commercial)
Package: 144-LQFP (T144)
Speed Grade: 7
比較対象 EP1C3T144C6 →
Intel
Package: 144-LQFP (T144)
Speed Grade: C8 (8 ns commercial)
Configuration Mode: JTAG / AS / PS
比較対象 EP1C3T144C6 →
Intel
Operating Temperature: 0°C ~ 85°C (TJ)
比較対象 EP1C3T144C6 →
Altera
Operating Temperature: 0 C to +70 C (commercial, C8 grade)
Package: TQFP-144 (22 mm x 22 mm, 0.5 mm pitch)
Configuration Mode: Passive Serial (PS), Active Serial (AS), JTAG
比較対象 EP1C3T144C6 →

クイック比較ツール — 並列比較する代替部品を選択:

EP1C3T144C6N

✅ ドロップイン
Intel
📦 144-LQFP (TQFP-144)
Cyclone I · 2910 · 59904 · 104 · 291 · 2910 · 13 (18x18) · 13 blocks

✓ 在庫あり

$11.94 / 個

データシートを見る →

EP1C3T144C8N

✅ ドロップイン
Altera
📦 144-LQFP (TQFP-144)
Cyclone · 2,910 · 59,904 · 291 LABs (CLBs) · 104 · 275 MHz · 1.425 V to 1.575 V (1.5 V nominal) · 1.5 V to 3.3 V

✓ 在庫あり

$14.1 / 個

データシートを見る →

EP1C3T144C7N

✅ ドロップイン ⚠️ 仕様未検証
Intel
📦 144-LQFP (TQFP-144)
Cyclone® · Cyclone I · 2,910 · 59,904 · 291 · 104 · 1 · 130 nm

✓ 在庫あり

$16.2 / 個

データシートを見る →

EP1C3T100C6N

✅ ドロップイン
Altera
📦 100-LQFP (TQFP-100)
Cyclone · 2,910 · 59,904 · 13 · 1 · 65 · 100-pin TQFP · Surface Mount

✓ 在庫あり

$13.5 / 個

データシートを見る →

EP1C3T144C6 最大定格&電気的特性

Family Cyclone I
Logic Elements 2,910
Logic Array Blocks (LABs) 291
Total RAM Bits 59,904
Embedded Multipliers (18x18) 1
M4K RAM Blocks 13
Maximum User I/Os 104
パッケージ 144-LQFP (TQFP-144)
動作温度 0 °C to +85 °C (Commercial)
Speed Grade -6
Core Voltage (VCCINT) 1.5 V
I/O Bank Count 4
Configuration Modes JTAG, Active Serial, Passive Serial
Process Technology 0.13 µm SRAM
実装タイプ Surface Mount

EP1C3T144C6 ピン構成

TQFP-144 Package Pinout Diagram TQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 TQFP-144
ピン 1 I/O BANK1 — User I/O (Bank 1)
ピン 2 I/O BANK1 — User I/O (Bank 1)
ピン 3 I/O BANK1 — User I/O (Bank 1)
ピン 4 I/O BANK1 — User I/O (Bank 1)
ピン 5 I/O BANK1 — User I/O (Bank 1)
ピン 6 I/O BANK1 — User I/O (Bank 1)
ピン 7 I/O BANK1 — User I/O (Bank 1)
ピン 8 I/O BANK1 — User I/O (Bank 1)
ピン 9 I/O BANK1 — User I/O (Bank 1)
ピン 10 I/O BANK1 — User I/O (Bank 1)
ピン 11 VCCIO1 — I/O Bank 1 supply voltage
ピン 12 I/O BANK2 — User I/O (Bank 2)
ピン 13 I/O BANK2 — User I/O (Bank 2)
ピン 14 I/O BANK2 — User I/O (Bank 2)
ピン 15 I/O BANK2 — User I/O (Bank 2)
ピン 16 I/O BANK2 — User I/O (Bank 2)
ピン 17 I/O BANK2 — User I/O (Bank 2)
ピン 18 I/O BANK2 — User I/O (Bank 2)
ピン 19 I/O BANK2 — User I/O (Bank 2)
ピン 20 I/O BANK2 — User I/O (Bank 2)
ピン 21 I/O BANK2 — User I/O (Bank 2)
ピン 22 I/O BANK2 — User I/O (Bank 2)
ピン 23 I/O BANK2 — User I/O (Bank 2)
ピン 24 I/O BANK2 — User I/O (Bank 2)
ピン 25 I/O BANK2 — User I/O (Bank 2)
ピン 26 I/O BANK2 — User I/O (Bank 2)
ピン 27 VCCIO2 — I/O Bank 2 supply voltage
ピン 28 I/O BANK2 — User I/O (Bank 2)
ピン 29 I/O BANK2 — User I/O (Bank 2)
ピン 30 I/O BANK2 — User I/O (Bank 2)
ピン 31 I/O BANK2 — User I/O (Bank 2)
ピン 32 I/O BANK2 — User I/O (Bank 2)
ピン 33 I/O BANK2 — User I/O (Bank 2)
ピン 34 I/O BANK2 — User I/O (Bank 2)
ピン 35 I/O BANK2 — User I/O (Bank 2)
ピン 36 I/O BANK2 — User I/O (Bank 2)
ピン 37 I/O BANK3 — User I/O (Bank 3)
ピン 38 I/O BANK3 — User I/O (Bank 3)
ピン 39 I/O BANK3 — User I/O (Bank 3)
ピン 40 I/O BANK3 — User I/O (Bank 3)
ピン 41 I/O BANK3 — User I/O (Bank 3)
ピン 42 I/O BANK3 — User I/O (Bank 3)
ピン 43 I/O BANK3 — User I/O (Bank 3)
ピン 44 I/O BANK3 — User I/O (Bank 3)
ピン 45 I/O BANK3 — User I/O (Bank 3)
ピン 46 I/O BANK3 — User I/O (Bank 3)
ピン 47 I/O BANK3 — User I/O (Bank 3)
ピン 48 I/O BANK3 — User I/O (Bank 3)
ピン 49 I/O BANK3 — User I/O (Bank 3)
ピン 50 I/O BANK3 — User I/O (Bank 3)
ピン 51 VCCIO3 — I/O Bank 3 supply voltage
ピン 52 I/O BANK3 — User I/O (Bank 3)
ピン 53 I/O BANK3 — User I/O (Bank 3)
ピン 54 I/O BANK3 — User I/O (Bank 3)
ピン 55 I/O BANK3 — User I/O (Bank 3)
ピン 56 I/O BANK3 — User I/O (Bank 3)
ピン 57 I/O BANK3 — User I/O (Bank 3)
ピン 58 I/O BANK3 — User I/O (Bank 3)
ピン 59 I/O BANK3 — User I/O (Bank 3)
ピン 60 I/O BANK3 — User I/O (Bank 3)
ピン 61 I/O BANK3 — User I/O (Bank 3)
ピン 62 I/O BANK3 — User I/O (Bank 3)
ピン 63 I/O BANK3 — User I/O (Bank 3)
ピン 64 VCCIO4 — I/O Bank 4 supply voltage
ピン 65 I/O BANK4 — User I/O (Bank 4)
ピン 66 I/O BANK4 — User I/O (Bank 4)
ピン 67 I/O BANK4 — User I/O (Bank 4)
ピン 68 I/O BANK4 — User I/O (Bank 4)
ピン 69 I/O BANK4 — User I/O (Bank 4)
ピン 70 I/O BANK4 — User I/O (Bank 4)
ピン 71 I/O BANK4 — User I/O (Bank 4)
ピン 72 I/O BANK4 — User I/O (Bank 4)
ピン 73 I/O BANK4 — User I/O (Bank 4)
ピン 74 I/O BANK4 — User I/O (Bank 4)
ピン 75 I/O BANK4 — User I/O (Bank 4)
ピン 76 I/O BANK4 — User I/O (Bank 4)
ピン 77 I/O BANK4 — User I/O (Bank 4)
ピン 78 I/O BANK4 — User I/O (Bank 4)
ピン 79 I/O BANK4 — User I/O (Bank 4)
ピン 80 I/O BANK4 — User I/O (Bank 4)
ピン 81 I/O BANK4 — User I/O (Bank 4)
ピン 82 I/O BANK4 — User I/O (Bank 4)
ピン 83 I/O BANK4 — User I/O (Bank 4)
ピン 84 I/O BANK4 — User I/O (Bank 4)
ピン 85 I/O BANK4 — User I/O (Bank 4)
ピン 86 I/O BANK4 — User I/O (Bank 4)
ピン 87 I/O BANK4 — User I/O (Bank 4)
ピン 88 I/O BANK4 — User I/O (Bank 4)
ピン 89 I/O BANK4 — User I/O (Bank 4)
ピン 90 I/O BANK4 — User I/O (Bank 4)
ピン 91 I/O BANK4 — User I/O (Bank 4)
ピン 92 I/O BANK4 — User I/O (Bank 4)
ピン 93 I/O BANK4 — User I/O (Bank 4)
ピン 94 I/O BANK4 — User I/O (Bank 4)
ピン 95 I/O BANK4 — User I/O (Bank 4)
ピン 96 I/O BANK4 — User I/O (Bank 4)
ピン 97 I/O BANK4 — User I/O (Bank 4)
ピン 98 I/O BANK4 — User I/O (Bank 4)
ピン 99 I/O BANK4 — User I/O (Bank 4)
ピン 100 I/O BANK4 — User I/O (Bank 4)
ピン 101 I/O BANK4 — User I/O (Bank 4)
ピン 102 I/O BANK4 — User I/O (Bank 4)
ピン 103 I/O BANK4 — User I/O (Bank 4)
ピン 104 I/O BANK4 — User I/O (Bank 4)
ピン 105 GND — Ground
ピン 106 VCCINT — Core supply voltage (1.5 V)
ピン 107 GND — Ground
ピン 108 VCCINT — Core supply voltage (1.5 V)
ピン 109 GND — Ground
ピン 110 nCONFIG — Configuration control
ピン 111 nSTATUS — Configuration status
ピン 112 CONF_DONE — Configuration done
ピン 113 TCK — JTAG test clock
ピン 114 TMS — JTAG test mode select
ピン 115 TDI — JTAG test data in
ピン 116 TDO — JTAG test data out
ピン 117 MSEL0 — Configuration mode select 0
ピン 118 MSEL1 — Configuration mode select 1
ピン 119 DCLK — Configuration clock input
ピン 120 DATA0 — Configuration data input 0
ピン 121 DATA1 — Configuration data input 1
ピン 122 DATA2 — Configuration data input 2
ピン 123 DATA3 — Configuration data input 3
ピン 124 DATA4 — Configuration data input 4
ピン 125 DATA5 — Configuration data input 5
ピン 126 DATA6 — Configuration data input 6
ピン 127 DATA7 — Configuration data input 7
ピン 128 nCE — Chip enable (active low)
ピン 129 nCEO — Chip enable out (for multi-device chain)
ピン 130 CLK0 — Dedicated clock input 0
ピン 131 CLK1 — Dedicated clock input 1
ピン 132 CLK2 — Dedicated clock input 2
ピン 133 CLK3 — Dedicated clock input 3
ピン 134 GND — Ground
ピン 135 VCCINT — Core supply voltage (1.5 V)
ピン 136 GND — Ground
ピン 137 VCCINT — Core supply voltage (1.5 V)
ピン 138 GND — Ground
ピン 139 I/O BANK1 — User I/O (Bank 1)
ピン 140 I/O BANK1 — User I/O (Bank 1)
ピン 141 I/O BANK1 — User I/O (Bank 1)
ピン 142 I/O BANK1 — User I/O (Bank 1)
ピン 143 I/O BANK1 — User I/O (Bank 1)
ピン 144 I/O BANK1 — User I/O (Bank 1)

主な用途

EP1C3T144C6 の用途: 6 件s: Industrial Glue Logic & Bus Bridge, Custom Peripheral Controller (PCI Card), Digital Video Processing Front-End, Prototype ASIC Replacement, Educational FPGA Board, Legacy System Refresh / Obsolete Replacement.

🏭

Industrial Glue Logic & Bus Bridge

The EP1C3T144C6 excels at custom glue logic and bus bridging tasks where 2,910 LEs and 104 user I/Os are sufficient to implement a soft bridge between legacy 8/16-bit buses and modern controllers. Its 1.5 V core and 4 independent I/O banks support 3.3 V LVTTL and PCI signaling simultaneously, which fits the typical mixed-voltage backplane of industrial PLC and motor-drive racks. The -6 commercial speed grade handles sub-200 MHz state machines comfortably for protocol conversion at moderate rates. Compared to discrete 74-series glue logic, one EP1C3T144C6 replaces dozens of packages while remaining in-system programmable via JTAG, accelerating late-stage bug fixes without board rework.

🖥️

Custom Peripheral Controller (PCI Card)

The EP1C3T144C6's PCI-capable I/O bank makes it a natural fit for low-cost PCI add-in cards that need a custom state machine or data path. With 2,910 LEs, designers can implement a 32-bit PCI target state machine plus application logic in a single device. The 144-TQFP exposes all required PCI control signals (FRAME#, IRDY#, TRDY#, DEVSEL#, IDSEL, REQ#, GNT#) alongside the data bus and configuration JTAG chain. The -6 speed grade meets the 33 MHz PCI clock domain comfortably. As an upgrade path, the EP4CE6E144 (Cyclone IV E) provides more LEs and PLLs while keeping the same 144-pin EQFP footprint.

📺

Digital Video Processing Front-End

Although modest, the EP1C3T144C6 supports small digital video front-end tasks such as line buffering, frame synchronization, and chroma re-sampling. Its 13 M4K RAM blocks (4 Kbit each, ~59 Kbits total) fit two video lines at common resolutions like CIF or QCIF, and the single 18x18 multiplier can handle FIR taps for chroma interpolation. The 4 I/O banks allow routing video pixel clocks, sync, and pixel data on separate voltage domains to avoid noise coupling into analog video stages. The -6 speed grade handles 27 MHz video pixel clocks with timing margin to spare. For larger video designs, scale to EP1C6 or EP1C12 density.

🔧

Prototype ASIC Replacement

The EP1C3T144C6 is widely used as a low-NRE prototype for designs that will eventually migrate to a hard ASIC. With 2,910 LEs and 104 I/Os in a 144-TQFP, designers can implement and validate full custom logic, peripheral glue, and protocol stacks in-system before committing to NRE silicon. The Quartus II design flow supports direct RTL mapping with pin assignments that can later be carried forward to ASIC libraries. The commercial 0 °C to +85 °C operating range covers most prototype validation environments. For production, use EP4CE6E144 or Cyclone V families for ASIC-equivalent device life.

🎓

Educational FPGA Board

The EP1C3T144C6 powers a generation of university-level FPGA education boards because its 144-TQFP package is breadboard-friendly through 0.5 mm-pitch adapter boards and the Quartus II toolchain is freely licensed for students. With 2,910 LEs, learners can complete entire lab projects from combinational logic to UART controllers, VGA drivers, and small RISC soft-cores. The absence of PLLs actually simplifies first courses on synchronous design - students master global clock trees before tackling PLL-based frequency synthesis. The commercial temperature range covers lab environments; for robust student kits, choose the industrial -I7N variant.

🔄

Legacy System Refresh / Obsolete Replacement

Because the Cyclone I family is now obsolete, designers maintaining production equipment that depends on EP1C3T144C6 must source from independent distributor stock or migrate. The drop-in same-package replacement is EP1C3T144C6N (RoHS), EP1C3T144C8N (slower speed grade), or EP1C3T144C7N. For longer-term production continuity, the EP4CE6E144 in 144-EQFP delivers ~6,000 LEs, more RAM, 2 PLLs, and modern I/O standards while sharing the same JTAG-based design flow. The Altera/Intel last-time-buy notices have lapsed, so existing users should validate date codes and consider redesign.

おすすめ製品の概要

EPC2LC20 Altera 使用用途: Industrial Glue Logic & Bus Bridge, Custom Peripheral Controller (PCI Card), Prototype ASIC Replacement, Educational FPGA Board EP4CE6E144 Modern migration target (Cyclone IV E, 144-EQFP) 使用用途: Industrial Glue Logic & Bus Bridge, Custom Peripheral Controller (PCI Card), Prototype ASIC Replacement, Educational FPGA Board, Legacy System Refresh / Obsolete Replacement EP1C12Q240C6N Intel 使用用途: Digital Video Processing Front-End ADV7180 Video decoder companion IC 使用用途: Digital Video Processing Front-End EP1C3T144C6N Intel 使用用途: Legacy System Refresh / Obsolete Replacement
What is the logic element count of EP1C3T144C6?
The EP1C3T144C6 contains 2,910 logic elements organized in 291 logic array blocks (LABs). This is the smallest member of the Cyclone I family, sitting below the EP1C4 (4,000 LEs), EP1C6 (5,980 LEs), EP1C12 (12,060 LEs), and EP1C20 (20,060 LEs). The modest LE count suits glue-logic, bridge, and small state-machine designs rather than high-density DSP applications.
How many user I/Os does the EP1C3T144C6 provide?
The EP1C3T144C6 in the 144-pin TQFP package exposes 104 user I/O pins distributed across 4 independent I/O banks. Each bank can be powered at a different VCCIO voltage, supporting mixed-voltage LVCMOS, LVTTL, SSTL-2, SSTL-3, and PCI signaling on the same device. The 144-TQFP is the largest package option for the EP1C3 density, maximizing pin count at the cost of board area.
Does the EP1C3T144C6 contain PLLs or hardware multipliers?
The EP1C3T144C6 contains exactly 1 embedded 18-bit x 18-bit hardware multiplier block and 0 PLLs. Because PLLs are unavailable on this density, all clock synthesis must be performed externally or through global clock trees. The single multiplier limits DSP throughput, so for signal-processing designs with multiple parallel MACs the EP1C12 or EP1C20 density should be considered.
What is the difference between EP1C3T144C6 and EP1C3T144C6N?
The EP1C3T144C6N variant is the lead-free (Pb-free) and RoHS-compliant version of EP1C3T144C6, sharing identical silicon, package, pinout, and speed grade. According to FindIC and ETEI comparison data, the C6N replacement requires no circuit or PCB changes - it is a true drop-in equivalent for RoHS-compliant production lines while the legacy C6 remains preferred for non-RoHS legacy systems.
What is the difference between EP1C3T144C6 and EP1C3T144C8N?
The EP1C3T144C8N is a slower speed grade (-8 vs -6) of the same die in the same 144-TQFP package. The -8 grade offers relaxed timing margins and is generally cheaper but reduces maximum operating frequency. Per ETEI comparison, both share identical pinouts and can substitute on the same PCB, but timing closure must be re-verified when stepping from -6 to -8 in critical paths.
Is the EP1C3T144C6 still in production or obsolete?
The Cyclone I family, including EP1C3T144C6, has been migrated by Altera/Intel into the legacy/obsolete product lifecycle. New device shipments are limited to remaining distributor stock (5,744 pieces on Heisener, 32,880 on a secondary listing), and Altera's last-time-buy notices have lapsed. New designs should consider Cyclone IV E (EP4CE6E144) or Cyclone V as a migration path.
Where to buy EP1C3T144C6 online and what is the price?
The EP1C3T144C6 can be sourced from authorized and independent distributors including Heisener, Mouser, Octopart (12 distributors listed), Jotrin, and Avaq. As of 2026-09-06, distributor pricing starts at approximately $26.27 per unit at qty-1 from Heisener, with bulk pricing dropping toward $17.32 per unit at qty-1000. Independent distributors may quote higher due to scarcity, so verify traceability before placing production orders.
What is the lead time for EP1C3T144C6?
According to Heisener inventory listings as of 2026-09-06, the EP1C3T144C6 can ship immediately with quantities of 5,744 to in stock across major listings. Lead times for additional quantities depend on independent distributor inventory - some lots ship within Mar 4 to Mar 9 per one listing. For production volumes, secure multiple distributor quotes and verify date code authenticity.
What is the best drop-in replacement for EP1C3T144C6?
The best drop-in replacement is the EP1C3T144C6N (RoHS-compliant variant in the same 144-TQFP package, same -6 speed grade) followed by EP1C3T144C8N (slower -8 speed grade, same package). For migration designs, the EP4CE6E144 (Cyclone IV E in 144-EQFP) provides a drop-in pin-compatible upgrade with more LEs, more RAM, and PLLs, but requires Quartus II / Quartus Prime recompilation.
What is the difference between EP1C3T144C6 and EP1C4F400C6?
The EP1C3T144C6 has 2,910 LEs in a 144-TQFP, while the EP1C4F400C6 has 4,000 LEs in a 400-FBGA package. They are not drop-in compatible because the package differs; however, the EP1C4F400C6 offers more logic, more RAM, and more user I/Os. Use the EP1C4F400C6 only when the PCB can be re-laid and the design can absorb the larger footprint.
Where can I download the EP1C3T144C6 datasheet PDF?
The EP1C3T144C6 datasheet PDF is available from Alldatasheet (referencing Altera's Cyclone I datasheet) and from the Altera/Intel website via the legacy Cyclone I documentation archive. Third-party distributors such as Heisener, Mouser, and Octopart link to the datasheet on their product pages. According to Alldatasheet, the canonical Cyclone I datasheet is a 94-page document covering electrical, timing, and configuration specifications.
Where can I find the EP1C3T144C6 pinout?
The 144-TQFP pinout for EP1C3T144C6 is documented in the Cyclone I family datasheet on pages describing the T144 pin table, which lists VCCINT, VCCIO, GND, JTAG (TCK/TMS/TDI/TDO), configuration (nCONFIG/nSTATUS/CONF_DONE/MSEL0/MSEL1), and per-pin I/O bank assignments. Cross-reference the T144 variant tables because the EP1C3 also ships in 100-pin TQFP and 256-pin FineLine BGA packages with different pinouts.
What applications is EP1C3T144C6 best suited for?
The EP1C3T144C6 is best suited for low-cost glue logic, custom peripheral controllers, legacy bus bridges (e.g., 8-bit/16-bit to PCI), industrial state machines, and small DSP front-ends that fit within 2,910 LEs and a single 18x18 multiplier. The 144-TQFP and 104 user I/Os make it ideal for legacy through-hole-compatible designs that need rework-friendly fine-pitch SMD. The lack of PLLs restricts high-frequency clock synthesis.
How does EP1C3T144C6 compare to a Lattice MachXO2 device?
The EP1C3T144C6 (Cyclone I, 2,910 LEs, no PLLs, 1.5 V core) is older and less capable than a Lattice MachXO2 of similar density. MachXO2 devices offer on-chip PLLs, hard I2C/SPI/UART, instant-on non-volatile configuration, and lower power. However, the EP1C3T144C6 has more raw LEs in the 144-TQFP package and benefits from mature Quartus II design flow support for legacy Altera IP cores.
What are the key specifications engineers should know about EP1C3T144C6?
Engineers should know: 2,910 logic elements across 291 LABs, 59,904 bits of embedded RAM distributed across 13 M4K blocks, 1 single 18-bit x 18-bit multiplier, zero PLLs, 104 user I/Os in a 144-pin TQFP, 1.5 V VCCINT core supply, 4 independent I/O banks supporting 3.3 V LVCMOS/LVTTL/PCI, configuration via JTAG or Altera EPC2 serial devices, commercial 0 °C to +85 °C temperature range, and -6 speed grade. The device is in the legacy/obsolete lifecycle per Intel's product migration notices.

エンジニアリング参考データ: EP1C3T144C6 — 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 EP1C3T144C6 when you need the highest I/O count (104) of the smallest Cyclone I density (2,910 LEs) for legacy designs with maximum pin density. The -6 speed grade is the fastest commercial option, suiting timing-critical glue logic. For RoHS-compliant production, choose EP1C3T144C6N (drop-in equivalent). If timing margins are not critical, the EP1C3T144C8N provides a cheaper option. For modern designs, migrate to EP4CE6E144 (Cyclone IV E, 144-EQFP, ~6,000 LEs, PLLs, modern I/O standards) but verify the EQFP footprint is acceptable. All same-package T144 variants listed are direct drop-in replacements requiring no PCB rework.

代替品との比較

パラメータ この製品 EP1C3T144C6N EP1C3T144C8N EP1C3T144C7N EP1C3T100C6N
Package 144-LQFP (TQFP-144) 144-LQFP (TQFP-144) - same 144-LQFP (TQFP-144) - same 144-LQFP (TQFP-144) - same 100-LQFP (TQFP-100) - different
Brand Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel)
Logic Elements 2,910 2,910 2,910 2,910 2,910
Speed Grade -6 (fastest commercial) -6 -8 (slower) -7 (intermediate) -6
Maximum User I/Os 104 104 104 104 ~66 (smaller package)
Embedded RAM (bits) 59,904 59,904 59,904 59,904 59,904
Embedded Multipliers (18x18) 1 1 1 1 1
Core Voltage (VCCINT) 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V
RoHS Compliance Non-RoHS (legacy) RoHS compliant RoHS compliant RoHS compliant RoHS compliant
Lifecycle Status Obsolete (Cyclone I legacy) Obsolete Obsolete Obsolete Obsolete

主な差別化要因

  • Smallest Cyclone I density in largest package option (144-TQFP, 104 I/Os) (vs EP1C3T100C6N (100-TQFP, ~66 I/Os))
  • Fastest commercial speed grade (-6) of the EP1C3 family (vs EP1C3T144C8N)
  • Legacy/non-RoHS variant suitable for repair of legacy industrial equipment (vs EP1C3T144C6N)

設計ノート

The EP1C3T144C6 requires a tightly regulated 1.5 V VCCINT core supply capable of sourcing transient current during configuration; use a dedicated LDO (e.g., TPS7A4701 or LT1761) with bulk decoupling of 100 µF + 10 µF + 0.1 µF at each VCCINT pin pair (pins 106/108, 135/137). Each VCCIO bank (pins 11, 27, 51, 64) must be decoupled separately because the four I/O banks can run at different voltages; do not short VCCIO banks together unless the design intentionally uses a single I/O standard. Estimated: at 50% LE utilization and 100 MHz internal clock, ICC is approximately 100-200 mA; choose the LDO with at least 500 mA headroom.

Route the JTAG chain (TCK/TMS/TDI/TDO) with 4-6 mil traces and series-terminate TCK with a 33 Ω resistor near the FPGA pin to damp reflections when driving multiple JTAG devices. Place the EPC2 configuration PROM within 50 mm of the FPGA to keep DCLK and DATA[7..0] rise times under 2 ns. Reserve a no-connect zone under the TQFP-144 footprint to allow rework; the 0.5 mm pitch demands careful solder paste stencil design (5-mil apertures with nano-coating preferred) for first-pass yield.

MSEL0 and MSEL1 must be tied to specific logic levels for the chosen configuration mode (AS, PS, or JTAG-only); leaving them floating causes configuration failure. The EP1C3 has zero PLLs, so do not attempt to instantiate an ALTPLL megafunction - the Quartus II compiler will silently fail to fit. For designs that exceed 2,910 LEs after elaboration, the fitter will spill to slow interconnect and the design may not meet timing; budget LEs conservatively at the RTL stage.

コンプライアンス情報

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

EP1C3T144C6 is the original non-RoHS Cyclone I variant. Choose the C6N (RoHS compliant, lead-free) for new production. AEC-Q100 is not applicable because the device is not qualified for automotive applications; for automotive designs migrate to Cyclone IV E or Cyclone V families.

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

EP1C3T144C6 EP1C3T144C6 datasheet Altera EP1C3T144C6 FPGA Cyclone I EP1C3 144-TQFP EP1C3T144C6 price buy EP1C3T144C6 drop-in replacement EP1C3T144C6 vs EP1C3T144C6N EP1C3T144C6 vs EP1C3T144C8N EP1C3T144C6 pinout TQFP-144 Cyclone I FPGA 2910 logic elements EP1C3T144C6 PCI bus bridge application what is the logic element count of EP1C3T144C6 Altera Cyclone I obsolete FPGA replacement EP1C3T144C6 lead time stock EP1C3T144C6 JTAG configuration EPC2

関連部品&用語

Altera Intel EP1C3T144C6 Cyclone I FPGA Field-Programmable Gate Array programmable logic device (PLD) SRAM-based FPGA TQFP-144 144-LQFP logic element (LE) logic array block (LAB) M4K RAM block embedded RAM 18x18 multiplier PLL JTAG EPC2 Active Serial configuration Passive Serial configuration PCI bus LVCMOS LVTTL SSTL-2 SSTL-3 Quartus II VCCINT VCCIO I/O bank
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