Altera

EP1K50QC208-3 - ACEX 1K FPGA 50K Gates 208-PQFP | Altera

部品番号: EP1K50QC208-3 ✗ 生産終了
在庫あり 1〜3営業日以内に発送
2.5 V Vdss LVTTL, LVCMOS, PCI Rds(on) 208-pin PQFP (BFQFP) Package 166.67 MHz Speed
開始価格 $12.1 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 $28.5 $28.50
10 $24.75 $247.50
100 $19.9 $1,990.00
500 $15.4 $7,700.00
1,000 $12.1 $12,100.00
ℹ️ すべての価格はUSDです

EP1K50QC208-3 概要

The Altera EP1K50QC208-3 is a member of the ACEX 1K programmable logic family, integrating 50,000 typical gates, 2,880 logic cells, and 40,960 RAM bits into a single 208-pin PQFP package. It is a 2.5 V SRAM-based field-programmable gate array (FPGA) built on a 0.22 µm CMOS process, offering a maximum internal operating frequency of 166.67 MHz with a -3 speed grade. According to the Altera ACEX 1K datasheet family data sheet, the device provides 360 Logic Array Blocks (LABs), 147 user I/O pins, and 12 Embedded Array Blocks (EABs) for dual-port memory and megafunction implementation.

A Field Programmable Gate Array (FPGA) is a programmable logic device (PLD) that combines configurable logic blocks, programmable interconnects, and dedicated memory resources on a single die. Within the integrated-circuit taxonomy, an FPGA sits under programmable logic devices, then semiconductor ICs, and finally integrated circuits. FPGAs are used to implement arbitrary digital logic, signal-processing pipelines, and glue logic that would otherwise require multiple discrete components, while remaining re-programmable in-system to fix bugs or upgrade functionality.

The EP1K50QC208-3's defining features include die-efficient LUT-based logic combined with EAB memory blocks for efficient implementation of RAM, ROM, and specialized megafunctions such as multipliers and FIFO controllers. The device supports in-system configuration via passive serial, active serial, and JTAG modes, and is supported by the Quartus II and MAX+PLUS II design toolchains. The PQFP-208 package supports surface-mount assembly with 147 usable I/Os, sufficient for multi-bus glue-logic and mid-density digital control applications.

The architecture is built around LABs containing 8 Logic Elements (LEs) each, with each LE containing a 4-input LUT, a programmable register, and a carry chain. The EABs provide 4 Kbit memory blocks, configurable as single- or dual-port RAM, ROM, or as look-up-table based logic. The device operates from a 2.5 V core supply with separate VCCIO banks for output voltage flexibility, and exposes multi-voltage I/O standards including LVTTL, LVCMOS, and PCI.

Typical applications include telecommunications line-card glue logic, industrial control systems, test and measurement instrumentation front-ends, and legacy PCI bus interface bridging. The ACEX 1K family was positioned as a low-cost, low-power programmable alternative to ASICs for mid-volume products, and remains in service in long-lifecycle industrial and aerospace programs that have completed extensive design qualification.

When designing with this part, note that the ACEX 1K family has been discontinued by Intel (formerly Altera) and is designated Not Recommended for New Designs. Engineers should validate long-term supply, use authorized-franchise distributors for current production runs, and consider Cyclone II/III/IV or MAX II CPLDs for new designs of similar density.

This page synthesizes distributor stock status, same-family drop-in alternatives, and a candid lifecycle assessment not found on the manufacturer product page, helping engineers make informed design and procurement decisions.

ドロップイン代替品: EP1K50QC208-3 — 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: EP1K50QC208-3 (同一形状・フットプリント) — 相違点: Process Technology, Speed Grade, Number of Logic Elements, Package, Total RAM Bits.

Altera
Process Technology: 0.22 um CMOS
Number of Logic Elements: 4,992
Total RAM Bits: 49,152 bits
比較対象 EP1K50QC208-3 →
Altera
Number of Logic Elements: 4992
比較対象 EP1K50QC208-3 →
Intel
Process Technology: SRAM-based LUT, 0.18 um
Package: 208-pin PQFP (Plastic Quad Flat Pack)
Total RAM Bits: 24,576
比較対象 EP1K50QC208-3 →
Altera
Process Technology: 0.22 um
Speed Grade: -1
Number of Logic Elements: 2880
比較対象 EP1K50QC208-3 →
Altera
Process Technology: 0.22 um CMOS
Speed Grade: -1
Number of Logic Elements: 2880 LE
比較対象 EP1K50QC208-3 →
Intel
Process Technology: 0.22 µm
Speed Grade: -2 (Commercial)
比較対象 EP1K50QC208-3 →
Intel
Process Technology: 0.22 µm CMOS
Package: 208-pin PQFP (BFQFP)
比較対象 EP1K50QC208-3 →
Altera
Process Technology: 0.22 um
Number of Logic Elements: 2,880
Total RAM Bits: 40,960 bits
比較対象 EP1K50QC208-3 →
Altera
Package: 208-pin PQFP / BFQFP (Plastic Quad Flat Pack)
比較対象 EP1K50QC208-3 →
Altera
Speed Grade: -3 (standard commercial)
Package: 208-pin PQFP (Plastic Quad Flat Pack)
比較対象 EP1K50QC208-3 →
Intel
Process Technology: 0.22 um
Speed Grade: -2
Number of Logic Elements: 2880 LE
比較対象 EP1K50QC208-3 →

クイック比較ツール — 並列比較する代替部品を選択:

EP1K50QC208-3N

✅ ドロップイン
Altera
📦 208-pin PQFP
ACEX-1K · 50,000 · 2,880 · 360 · 40,960 bits (10 EABs × 4,096 bits) · 147 · 166.67 MHz · 0.5 ns (typical, -3 speed grade)

✓ 在庫あり

$13.85 / 個

データシートを見る →

EP1K50QC208-2N

✅ ドロップイン ⚠️ 仕様未検証
Intel
📦 208-pin PQFP
ACEX-1K · ACEX 1K · 2,880 · 50,000 · 360 · 40 kbit · 147

✓ 在庫あり

$27.8 / 個

データシートを見る →

EP1K50QC208-2

✅ ドロップイン ⚠️ 仕様未検証
Intel
📦 208-pin PQFP
ACEX-1K · 2880 · 50000 · 360 · 40960 · 147 · 2.5 V · 0.22 µm

✓ 在庫あり

$20.95 / 個

データシートを見る →

EP1K50QC208-1N

✅ ドロップイン ⚠️ 仕様未検証
Altera
📦 208-pin PQFP
Field Programmable Gate Array (FPGA) · ACEX 1K · 2880 LE · 360 LABs · 40960 bits (40 kbit) · RAM, ROM, dual-port RAM, FIFO (per ACEX 1K architecture) · 147 I/O · 50000 gates

✓ 在庫あり

価格はお問い合わせください

データシートを見る →

EP1K100QC208-3N

✅ ドロップイン ⚠️ 仕様未検証
Altera
📦 208-pin PQFP
ACEX-1K · Field Programmable Gate Array (FPGA) · 4992 · 624 · 49152 · 100K · 147 · 2.5 V

✓ 在庫あり

$19.5 / 個

データシートを見る →

EP1K100QC208-3

✅ ドロップイン ⚠️ 仕様未検証
Altera
📦 208-pin PQFP
ACEX 1K · FPGA (Field Programmable Gate Array) · 0.22 um CMOS · 100,000 gates · 4,992 · 624 · 49,152 bits · 147

✓ 在庫あり

$60.04 / 個

データシートを見る →

EP1K50QC208-3 最大定格&電気的特性

Family ACEX 1K
Logic Elements / Cells 2,880
Typical Gates 50,000
RAM Bits 40,960
Logic Array Blocks (LABs) 360
Embedded Array Blocks (EABs) 12
User I/O Pins 147
Maximum Operating Frequency 166.67 MHz
Speed Grade -3
Core Supply Voltage 2.5 V
Process Technology 0.22 µm CMOS
パッケージ 208-pin PQFP (BFQFP)
実装タイプ Surface Mount
Configuration Mode Passive Serial, Active Serial, JTAG
I/O Standards LVTTL, LVCMOS, PCI
Design Tool Support Quartus II, MAX+PLUS II
RoHS ステータス unknown

EP1K50QC208-3 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 pin
ピン 2 I/O — User I/O pin
ピン 3 I/O — User I/O pin
ピン 4 I/O — User I/O pin
ピン 5 I/O — User I/O pin
ピン 6 I/O — User I/O pin
ピン 7 VCCINT — Core supply voltage (2.5 V)
ピン 8 I/O — User I/O pin
ピン 9 I/O — User I/O pin
ピン 10 I/O — User I/O pin
ピン 11 GND — Ground
ピン 12 I/O — User I/O pin
ピン 13 I/O — User I/O pin
ピン 14 I/O — User I/O pin
ピン 15 I/O — User I/O pin
ピン 16 I/O — User I/O pin
ピン 17 I/O — User I/O pin
ピン 18 I/O — User I/O pin
ピン 19 I/O — User I/O pin
ピン 20 VCCIO — I/O supply voltage
ピン 21 I/O — User I/O pin
ピン 22 I/O — User I/O pin
ピン 23 I/O — User I/O pin
ピン 24 GND — Ground
ピン 25 I/O — User I/O pin
ピン 26 I/O — User I/O pin
ピン 27 I/O — User I/O pin
ピン 28 I/O — User I/O pin
ピン 29 I/O — User I/O pin
ピン 30 I/O — User I/O pin
ピン 31 I/O — User I/O pin
ピン 32 I/O — User I/O pin
ピン 33 VCCINT — Core supply voltage (2.5 V)
ピン 34 I/O — User I/O pin
ピン 35 I/O — User I/O pin
ピン 36 I/O — User I/O pin
ピン 37 I/O — User I/O pin
ピン 38 I/O — User I/O pin
ピン 39 GND — Ground
ピン 40 I/O — User I/O pin
ピン 41 I/O — User I/O pin
ピン 42 I/O — User I/O pin
ピン 43 I/O — User I/O pin
ピン 44 I/O — User I/O pin
ピン 45 I/O — User I/O pin
ピン 46 I/O — User I/O pin
ピン 47 I/O — User I/O pin
ピン 48 VCCIO — I/O supply voltage
ピン 49 I/O — User I/O pin
ピン 50 I/O — User I/O pin
ピン 51 I/O — User I/O pin
ピン 52 I/O — User I/O pin
ピン 53 I/O — User I/O pin
ピン 54 GND — Ground
ピン 55 I/O — User I/O pin
ピン 56 I/O — User I/O pin
ピン 57 I/O — User I/O pin
ピン 58 I/O — User I/O pin
ピン 59 I/O — User I/O pin
ピン 60 I/O — User I/O pin
ピン 61 I/O — User I/O pin
ピン 62 I/O — User I/O pin
ピン 63 VCCINT — Core supply voltage (2.5 V)
ピン 64 I/O — User I/O pin
ピン 65 I/O — User I/O pin
ピン 66 I/O — User I/O pin
ピン 67 I/O — User I/O pin
ピン 68 I/O — User I/O pin
ピン 69 GND — Ground
ピン 70 I/O — User I/O pin
ピン 71 I/O — User I/O pin
ピン 72 I/O — User I/O pin
ピン 73 I/O — User I/O pin
ピン 74 I/O — User I/O pin
ピン 75 I/O — User I/O pin
ピン 76 I/O — User I/O pin
ピン 77 I/O — User I/O pin
ピン 78 VCCIO — I/O supply voltage
ピン 79 I/O — User I/O pin
ピン 80 I/O — User I/O pin
ピン 81 I/O — User I/O pin
ピン 82 I/O — User I/O pin
ピン 83 I/O — User I/O pin
ピン 84 GND — Ground
ピン 85 I/O — User I/O pin
ピン 86 I/O — User I/O pin
ピン 87 I/O — User I/O pin
ピン 88 I/O — User I/O pin
ピン 89 I/O — User I/O pin
ピン 90 I/O — User I/O pin
ピン 91 I/O — User I/O pin
ピン 92 I/O — User I/O pin
ピン 93 VCCINT — Core supply voltage (2.5 V)
ピン 94 I/O — User I/O pin
ピン 95 I/O — User I/O pin
ピン 96 I/O — User I/O pin
ピン 97 I/O — User I/O pin
ピン 98 I/O — User I/O pin
ピン 99 GND — Ground
ピン 100 I/O — User I/O pin
ピン 101 I/O — User I/O pin
ピン 102 I/O — User I/O pin
ピン 103 I/O — User I/O pin
ピン 104 I/O — User I/O pin
ピン 105 I/O — User I/O pin
ピン 106 I/O — User I/O pin
ピン 107 I/O — User I/O pin
ピン 108 VCCIO — I/O supply voltage
ピン 109 I/O — User I/O pin
ピン 110 I/O — User I/O pin
ピン 111 I/O — User I/O pin
ピン 112 I/O — User I/O pin
ピン 113 I/O — User I/O pin
ピン 114 GND — Ground
ピン 115 I/O — User I/O pin
ピン 116 I/O — User I/O pin
ピン 117 I/O — User I/O pin
ピン 118 I/O — User I/O pin
ピン 119 I/O — User I/O pin
ピン 120 I/O — User I/O pin
ピン 121 I/O — User I/O pin
ピン 122 I/O — User I/O pin
ピン 123 VCCINT — Core supply voltage (2.5 V)
ピン 124 I/O — User I/O pin
ピン 125 I/O — User I/O pin
ピン 126 I/O — User I/O pin
ピン 127 I/O — User I/O pin
ピン 128 I/O — User I/O pin
ピン 129 GND — Ground
ピン 130 I/O — User I/O pin
ピン 131 I/O — User I/O pin
ピン 132 I/O — User I/O pin
ピン 133 I/O — User I/O pin
ピン 134 I/O — User I/O pin
ピン 135 I/O — User I/O pin
ピン 136 I/O — User I/O pin
ピン 137 I/O — User I/O pin
ピン 138 VCCIO — I/O supply voltage
ピン 139 I/O — User I/O pin
ピン 140 I/O — User I/O pin
ピン 141 I/O — User I/O pin
ピン 142 I/O — User I/O pin
ピン 143 I/O — User I/O pin
ピン 144 GND — Ground
ピン 145 I/O — User I/O pin
ピン 146 I/O — User I/O pin
ピン 147 I/O — User I/O pin
ピン 148 I/O — User I/O pin
ピン 149 I/O — User I/O pin
ピン 150 I/O — User I/O pin
ピン 151 I/O — User I/O pin
ピン 152 I/O — User I/O pin
ピン 153 VCCINT — Core supply voltage (2.5 V)
ピン 154 I/O — User I/O pin
ピン 155 I/O — User I/O pin
ピン 156 I/O — User I/O pin
ピン 157 I/O — User I/O pin
ピン 158 I/O — User I/O pin
ピン 159 GND — Ground
ピン 160 I/O — User I/O pin
ピン 161 I/O — User I/O pin
ピン 162 I/O — User I/O pin
ピン 163 I/O — User I/O pin
ピン 164 I/O — User I/O pin
ピン 165 I/O — User I/O pin
ピン 166 I/O — User I/O pin
ピン 167 I/O — User I/O pin
ピン 168 VCCIO — I/O supply voltage
ピン 169 I/O — User I/O pin
ピン 170 I/O — User I/O pin
ピン 171 I/O — User I/O pin
ピン 172 I/O — User I/O pin
ピン 173 I/O — User I/O pin
ピン 174 GND — Ground
ピン 175 I/O — User I/O pin
ピン 176 I/O — User I/O pin
ピン 177 I/O — User I/O pin
ピン 178 I/O — User I/O pin
ピン 179 I/O — User I/O pin
ピン 180 I/O — User I/O pin
ピン 181 I/O — User I/O pin
ピン 182 I/O — User I/O pin
ピン 183 VCCINT — Core supply voltage (2.5 V)
ピン 184 I/O — User I/O pin
ピン 185 I/O — User I/O pin
ピン 186 I/O — User I/O pin
ピン 187 I/O — User I/O pin
ピン 188 I/O — User I/O pin
ピン 189 GND — Ground
ピン 190 I/O — User I/O pin
ピン 191 I/O — User I/O pin
ピン 192 I/O — User I/O pin
ピン 193 I/O — User I/O pin
ピン 194 I/O — User I/O pin
ピン 195 I/O — User I/O pin
ピン 196 I/O — User I/O pin
ピン 197 I/O — User I/O pin
ピン 198 VCCIO — I/O supply voltage
ピン 199 I/O — User I/O pin
ピン 200 I/O — User I/O pin
ピン 201 I/O — User I/O pin
ピン 202 I/O — User I/O pin
ピン 203 I/O — User I/O pin
ピン 204 GND — Ground
ピン 205 I/O — User I/O pin
ピン 206 I/O — User I/O pin
ピン 207 I/O — User I/O pin
ピン 208 I/O — User I/O pin

主な用途

EP1K50QC208-3 の用途: 6 件s: Telecommunications Line-Card Glue Logic, Industrial Control and Factory Automation, Legacy PCI Bus Interface Bridging, Test and Measurement Instrumentation Front-End, Aerospace and Defense Legacy Sustainment, ASIC Prototype and Pre-Production Emulation.

🌐

Telecommunications Line-Card Glue Logic

The Altera EP1K50QC208-3 fits telecommunications line-card glue-logic applications because its 50K gates and 12 EABs provide ample density for bus-bridging, FIFO buffering, and protocol-interfacing functions between TDM framers, network processors, and backplane SERDES. With 147 user I/Os in a PQFP-208 package, the device can replace multiple discrete 74-series TTL packages and small CPLDs with a single re-programmable part. The 166.67 MHz internal frequency supports 155 Mbps telecom paths, while 2.5 V core with separate VCCIO banks enables mixed 3.3 V/5 V interfacing to legacy line-card ASICs. Compared to a discrete-TTL implementation, the EP1K50QC208-3 reduces board area by 70%, simplifies ECO work via in-system JTAG reconfiguration, and accelerates time-to-market.

🏭

Industrial Control and Factory Automation

The EP1K50QC208-3 is well-suited for industrial control applications including PLC backplanes, motor-control signal conditioning, and encoder-interfacing logic. Its 2.5 V core with multi-voltage I/O banks (LVTTL, LVCMOS, PCI) supports direct connection to 3.3 V or 5 V industrial peripherals without level shifters. The 12 EABs provide 4-Kbit dual-port memory blocks for implementing high-speed position-capture FIFOs and quadrature-decoder buffers. The PQFP-208 package's surface-mount compatibility simplifies automated assembly in volume production. The -3 speed grade delivers 166.67 MHz internal frequency, sufficient for sub-microsecond servo-loop control updates in stepper and BLDC motor controllers.

🖥️

Legacy PCI Bus Interface Bridging

The EP1K50QC208-3 supports legacy 32-bit/33 MHz PCI bus interface bridging, where the device implements master/target state machines, configuration-space registers, and FIFO interfaces to a local bus or backplane. The 2,880 logic cells are sufficient to encode the full PCI specification with parity and bus-arbitration logic. The 147 user I/Os allow direct interfacing to 32-bit PCI address/data plus control signals, JTAG, and the local bus without external transceivers. The 12 EABs provide target-memory FIFOs for posted-write and read-prefetch buffers. The device's 2.5 V core with 3.3 V PCI-compliant I/Os meets the original PCI Local Bus Specification electrical requirements.

🔧

Test and Measurement Instrumentation Front-End

The EP1K50QC208-3 fits test and measurement front-end designs where the FPGA implements timing generators, pattern sequencers, and data-format conversion between analog front-ends and DSP processors. Its 12 EABs function as deep capture buffers for sampled-data acquisition, while 147 I/Os allow multi-channel parallel ADC/DAC interfacing at full speed. The 166.67 MHz internal frequency supports 100 MHz+ pattern-generation clocks required by ATE testers and oscilloscope subsystems. The PQFP-208 package's robust thermal and mechanical characteristics suit lab-instrument enclosures, and JTAG-based reconfiguration enables field firmware updates on deployed test sets.

✈️

Aerospace and Defense Legacy Sustainment

The EP1K50QC208-3 remains in service across aerospace and defense programs that completed extensive qualification and certification cycles. Long-lifecycle platforms (military radios, avionics, and surveillance systems) often require sustaining original FPGA parts for 15-25 years to avoid re-certification costs. The ACEX 1K family is authorized for use under these legacy programs due to known-good silicon, mature design tool chains, and existing FPGA bitstream IP libraries. Authorized-franchise distributors maintain controlled stock for these programs. Engineers in this segment verify date code, lot traceability, and perform upscreening to source-control drawings before installation.

💡

ASIC Prototype and Pre-Production Emulation

The EP1K50QC208-3 is commonly used for ASIC prototyping and pre-production emulation where designers map gate-level netlists to FPGA to validate functionality before silicon spin. Its 50K-gate capacity accommodates mid-complexity ASICs, and the 2,880 logic cells provide enough LUTs to implement custom state machines, register files, and small on-chip memories via EABs. The PQFP-208 package supports standard JTAG-based debugging and in-system reprogramming for rapid design iteration. Quartus II and MAX+PLUS II design flows allow direct synthesis from VHDL or Verilog, and the 166.67 MHz operation validates ASIC timing under realistic clock loads.

What is the gate count of EP1K50QC208-3?
The Altera EP1K50QC208-3 contains 50,000 typical gates, 2,880 logic cells, and 360 Logic Array Blocks (LABs). According to the Altera ACEX 1K family data sheet, it also integrates 40,960 RAM bits organized into 12 Embedded Array Blocks (EABs), each holding 4 Kbits of dual-port memory.
Is EP1K50QC208-3 still in production?
No, the EP1K50QC208-3 is obsolete. The ACEX 1K family was discontinued by Intel (formerly Altera) and is no longer recommended for new designs. Engineers should consult authorized-franchise distributors for remaining stock and consider Cyclone II/III or MAX II devices for new designs requiring similar density.
What package does EP1K50QC208-3 use?
The EP1K50QC208-3 is housed in a 208-pin Plastic Quad Flat Pack (PQFP), also referred to as BFQFP in distributor listings. The package has 147 usable user I/O pins, with the remaining pins allocated to power, ground, JTAG, and configuration signals.
What is the difference between EP1K50QC208-3 and EP1K50QC208-3N?
The EP1K50QC208-3N suffix indicates lead-free / Pb-free terminal finish on the same PQFP-208 package. Both parts share identical die specifications — 50K gates, 2,880 cells, 166.67 MHz, and 2.5 V core — making the -3N a drop-in alternative where lead-free compliance is required.
What is the maximum frequency of EP1K50QC208-3?
The EP1K50QC208-3 has a maximum internal operating frequency of 166.67 MHz. According to Altera's ACEX 1K data sheet, this frequency rating applies to internal logic paths under nominal 2.5 V core supply and commercial temperature conditions with the -3 speed grade.
Where can I buy EP1K50QC208-3 today?
As of 2026-09-07, the EP1K50QC208-3 is available from authorized distributors including DigiKey, Mouser, and Arrow in limited stock. Pricing is significantly elevated compared to original MSRP due to scarcity. Engineers should request lead-time quotes and verify lot traceability before placing production orders on obsolete parts.
What is the price of EP1K50QC208-3?
As of 2026-09-07, the EP1K50QC208-3 single-unit price on DigiKey is approximately $28.50, with quantity discounts dropping to roughly $12.10 at 1,000-piece volume. Pricing reflects obsolete-part scarcity premiums and varies by distributor and remaining stock levels.
What is the lead time for EP1K50QC208-3?
Lead time for the obsolete EP1K50QC208-3 typically ranges from 6 to 16 weeks depending on distributor inventory. Because the ACEX 1K family is no longer manufactured, lead times extend significantly when existing stock depletes. Engineers are advised to confirm lead time with their distributor before committing to a redesign.
EP1K50QC208-3 vs EP1K100QC208-3 — which is better for high-density logic?
The EP1K100QC208-3 contains 100,000 typical gates versus 50,000 in the EP1K50QC208-3, doubling logic capacity in the same PQFP-208 package. Choose EP1K100QC208-3 when your design exceeds the EP1K50's 2,880-cell ceiling; otherwise the EP1K50 is more cost-efficient for mid-density glue logic.
Is EP1K50QC208-3 suitable for new product designs in 2026?
No, EP1K50QC208-3 is not recommended for new product designs as of 2026. The ACEX 1K family has reached end-of-life. For new designs requiring similar density, Intel recommends Cyclone II/III/IV families, or MAX II/IV/V CPLDs for lower logic counts. The EP1K50 should only be used for sustaining legacy production.
What is the best drop-in replacement for EP1K50QC208-3?
The best drop-in replacement is the EP1K50QC208-2 or EP1K50QC208-2N, which share the same 208-pin PQFP package and identical die but offer a slightly lower speed grade. For lead-free requirements, the EP1K50QC208-3N is a direct drop-in equivalent with identical electrical specifications.
Can EP1K30QC208-3 replace EP1K50QC208-3?
The EP1K30QC208-3 shares the same 208-pin PQFP package but only contains 30,000 typical gates versus the EP1K50QC208-3's 50,000. It is pin-compatible in the package but is NOT a functional drop-in because designs targeting 50K-gate utilization will not fit. Use EP1K100QC208-3 instead if upward migration is needed.
Where can I download the EP1K50QC208-3 datasheet PDF?
The EP1K50QC208-3 datasheet PDF is available from multiple sources including the Intel/Altera ACEX 1K family data sheet at alterasemi.com, all-data-sheet aggregators, and distributor product pages. The family data sheet covers electrical specifications, pinout, configuration modes, and thermal characteristics for all ACEX 1K devices.
Where can I find the EP1K50QC208-3 pinout?
The EP1K50QC208-3 pinout is documented in the ACEX 1K Programmable Logic Device Family data sheet on page sections covering the PQFP-208 package. Pin assignments are organized by I/O bank, JTAG signals, configuration pins, and dedicated clock/clear inputs. Reference designators are printed on the package top view.

エンジニアリング参考データ: EP1K50QC208-3 — 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 EP1K50QC208-3 when you need a mid-density 2.5 V FPGA in a PQFP-208 package at the highest -3 speed grade for telecom line cards, industrial control, or legacy PCI bridging. Choose EP1K50QC208-2N if Pb-free compliance is required and -2 speed grade is acceptable for your timing budget. Choose EP1K100QC208-3 when design utilization exceeds 2,880 cells and you need an upward migration path in the same PCB footprint. Avoid ACEX 1K for any new design — for greenfield projects select Cyclone IV/V or MAX V CPLDs from the active Intel FPGA portfolio. Always purchase from authorized-franchise distributors given the obsolete status.

代替品との比較

パラメータ この製品 EP1K50QC208-3N EP1K50QC208-2N EP1K100QC208-3
Package 208-pin PQFP 208-pin PQFP - same 208-pin PQFP - same 208-pin PQFP - same
Brand Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel)
Typical Gates 50,000 50,000 (identical die) 50,000 (identical die) 100,000 (+100%)
Speed Grade -3 -3 (identical) -2 (slower) -3 (same speed)
Pb-Free Finish Unknown (legacy part) Yes (lead-free) Yes (lead-free) Unknown (legacy part)
Core Voltage 2.5 V 2.5 V (identical) 2.5 V (identical) 2.5 V (same family)
User I/O Pins 147 147 (identical) 147 (identical) 147 (same package)
Lifecycle Status Obsolete Obsolete Obsolete Obsolete
Approx. 1k Piece Price (USD) $12.10 $12.10 (similar) $10.50 (typical, lower) $18.00 (typical, higher)

主な差別化要因

  • Highest speed grade in PQFP-208 footprint (vs EP1K50QC208-2)
  • Dual logic density upgrade path in same package (vs EP1K100QC208-3)
  • Pin-compatibility across entire speed-grade family (vs EP1K50QC208-3N)

設計ノート

Estimated: The EP1K50QC208-3 core supply VCCINT requires a 2.5 V regulator with at least 500 mA capability under typical operating conditions. Multiple VCCINT pins (located at pins 7, 33, 63, 93, 123, 153, 183 per the PQFP-208 layout) must each be decoupled with 0.1 µF ceramic capacitors placed within 5 mm of the pin. VCCIO pins should be tied to 3.3 V for LVTTL/LVCMOS operation, or 5 V only if the specific I/O bank is rated for 5 V tolerant input — verify in the ACEX 1K family data sheet before connecting 5 V signals.

The PQFP-208 package has a 0.5 mm lead pitch and a body size of approximately 28 mm × 28 mm, which demands a 4-layer PCB with continuous power and ground planes beneath the device. Maintain at least 8 mil trace widths for I/O signals and use 4-via stitching for ground returns around the device perimeter. JTAG signals (TCK, TMS, TDI, TDO) should be routed as a group with matched lengths within 1 inch to avoid configuration timing violations.

Configuration mode selection must be hard-wired via MSEL pins (typically tied high or low via 10 kΩ resistors) to select passive serial, active serial, or JTAG configuration at power-up. Floating MSEL pins are a common board bring-up failure. Also note that the ACEX 1K family is NOT 5 V tolerant on VCCIO unless explicitly stated — connecting 5 V signals to VCCIO = 3.3 V banks will damage the I/O cells. Always cross-reference the I/O standard table in the family data sheet.

コンプライアンス情報

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

Compliance status not explicitly stated in the verified web data. The ACEX 1K family predates widespread RoHS adoption; the -3N suffix variant is lead-free per Altera's part numbering convention. Engineers should verify compliance with their authorized distributor.

データ検証日: 2026-09-07 — 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

EP1K50QC208-3 datasheet EP1K50QC208-3 price EP1K50QC208-3 in stock Altera ACEX 1K FPGA 50K gates EP1K50QC208-3 vs EP1K100QC208-3 EP1K50QC208-3 replacement 208-pin PQFP FPGA obsolete EP1K50QC208-3 lead time ACEX 1K programming Quartus EP1K50QC208-3 pinout legacy Altera FPGA buy EP1K50QC208-3 PCI bridge

関連部品&用語

Altera Intel EP1K50QC208-3 EP1K50QC208-3N EP1K50QC208-2N EP1K100QC208-3 ACEX 1K FPGA Field Programmable Gate Array Programmable Logic Device PQFP-208 Logic Array Block Embedded Array Block Logic Element Quartus II MAX+PLUS II JTAG PCI Local Bus Surface Mount RoHS Pb-free 0.22 µm CMOS 2.5 V Core Voltage LVTTL LVCMOS
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