Altera

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

Артикул: EP1K50QC208-3 ✗ Снят с производства
В наличии Отправка в течение 1–3 рабочих дней
2.5 V Vdss LVTTL, LVCMOS, PCI Rds(on) 208-pin PQFP (BFQFP) Package 166.67 MHz Speed
От $12.1 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-09-06
Оптовые цены
Кол-во Цена за ед. Итого
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 Все цены указаны в USD

EP1K50QC208-3 Обзор

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.

Аналоги без доработки для EP1K50QC208-3 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с EP1K50QC208-3 (тот же форм-фактор и посадочное место) — отличается по 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
Сравнить с EP1K50QC208-3 →
Altera
Number of Logic Elements: 4992
Сравнить с EP1K50QC208-3 →
Intel
Process Technology: SRAM-based LUT, 0.18 um
Package: 208-pin PQFP (Plastic Quad Flat Pack)
Total RAM Bits: 24,576
Сравнить с EP1K50QC208-3 →
Altera
Process Technology: 0.22 um
Speed Grade: -1
Number of Logic Elements: 2880
Сравнить с EP1K50QC208-3 →
Altera
Process Technology: 0.22 um CMOS
Speed Grade: -1
Number of Logic Elements: 2880 LE
Сравнить с EP1K50QC208-3 →
Intel
Process Technology: 0.22 µm
Speed Grade: -2 (Commercial)
Сравнить с EP1K50QC208-3 →
Intel
Process Technology: 0.22 µm CMOS
Package: 208-pin PQFP (BFQFP)
Сравнить с EP1K50QC208-3 →
Altera
Process Technology: 0.22 um
Number of Logic Elements: 2,880
Total RAM Bits: 40,960 bits
Сравнить с EP1K50QC208-3 →
Altera
Package: 208-pin PQFP / BFQFP (Plastic Quad Flat Pack)
Сравнить с EP1K50QC208-3 →
Altera
Speed Grade: -3 (standard commercial)
Package: 208-pin PQFP (Plastic Quad Flat Pack)
Сравнить с EP1K50QC208-3 →
Intel
Process Technology: 0.22 um
Speed Grade: -2
Number of Logic Elements: 2880 LE
Сравнить с EP1K50QC208-3 →

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

EP1K50QC208-3N

✅ Прямая замена
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)

✓ В наличии

$13.85 / шт.

Открыть даташит →

EP1K50QC208-2N

✅ Прямая замена ⚠️ Характеристики не проверены
Intel
📦 208-pin PQFP
ACEX-1K · ACEX 1K · 2,880 · 50,000 · 360 · 40 kbit · 147

✓ В наличии

$27.8 / шт.

Открыть даташит →

EP1K50QC208-2

✅ Прямая замена ⚠️ Характеристики не проверены
Intel
📦 208-pin PQFP
ACEX-1K · 2880 · 50000 · 360 · 40960 · 147 · 2.5 V · 0.22 µm

✓ В наличии

$20.95 / шт.

Открыть даташит →

EP1K50QC208-1N

✅ Прямая замена ⚠️ Характеристики не проверены
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

✓ В наличии

Уточнить цену

Открыть даташит →

EP1K100QC208-3N

✅ Прямая замена ⚠️ Характеристики не проверены
Altera
📦 208-pin PQFP
ACEX-1K · Field Programmable Gate Array (FPGA) · 4992 · 624 · 49152 · 100K · 147 · 2.5 V

✓ В наличии

$19.5 / шт.

Открыть даташит →

EP1K100QC208-3

✅ Прямая замена ⚠️ Характеристики не проверены
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

✓ В наличии

$60.04 / шт.

Открыть даташит →

EP1K50QC208-3 Максимальные параметры и электрические характеристики

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
Корпус 208-pin PQFP (BFQFP)
Тип монтажа Surface Mount
Configuration Mode Passive Serial, Active Serial, JTAG
I/O Standards LVTTL, LVCMOS, PCI
Design Tool Support Quartus II, MAX+PLUS II
Статус RoHS unknown

Конфигурация выводов EP1K50QC208-3

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
Контакт 1 I/O — User I/O pin
Контакт 2 I/O — User I/O pin
Контакт 3 I/O — User I/O pin
Контакт 4 I/O — User I/O pin
Контакт 5 I/O — User I/O pin
Контакт 6 I/O — User I/O pin
Контакт 7 VCCINT — Core supply voltage (2.5 V)
Контакт 8 I/O — User I/O pin
Контакт 9 I/O — User I/O pin
Контакт 10 I/O — User I/O pin
Контакт 11 GND — Ground
Контакт 12 I/O — User I/O pin
Контакт 13 I/O — User I/O pin
Контакт 14 I/O — User I/O pin
Контакт 15 I/O — User I/O pin
Контакт 16 I/O — User I/O pin
Контакт 17 I/O — User I/O pin
Контакт 18 I/O — User I/O pin
Контакт 19 I/O — User I/O pin
Контакт 20 VCCIO — I/O supply voltage
Контакт 21 I/O — User I/O pin
Контакт 22 I/O — User I/O pin
Контакт 23 I/O — User I/O pin
Контакт 24 GND — Ground
Контакт 25 I/O — User I/O pin
Контакт 26 I/O — User I/O pin
Контакт 27 I/O — User I/O pin
Контакт 28 I/O — User I/O pin
Контакт 29 I/O — User I/O pin
Контакт 30 I/O — User I/O pin
Контакт 31 I/O — User I/O pin
Контакт 32 I/O — User I/O pin
Контакт 33 VCCINT — Core supply voltage (2.5 V)
Контакт 34 I/O — User I/O pin
Контакт 35 I/O — User I/O pin
Контакт 36 I/O — User I/O pin
Контакт 37 I/O — User I/O pin
Контакт 38 I/O — User I/O pin
Контакт 39 GND — Ground
Контакт 40 I/O — User I/O pin
Контакт 41 I/O — User I/O pin
Контакт 42 I/O — User I/O pin
Контакт 43 I/O — User I/O pin
Контакт 44 I/O — User I/O pin
Контакт 45 I/O — User I/O pin
Контакт 46 I/O — User I/O pin
Контакт 47 I/O — User I/O pin
Контакт 48 VCCIO — I/O supply voltage
Контакт 49 I/O — User I/O pin
Контакт 50 I/O — User I/O pin
Контакт 51 I/O — User I/O pin
Контакт 52 I/O — User I/O pin
Контакт 53 I/O — User I/O pin
Контакт 54 GND — Ground
Контакт 55 I/O — User I/O pin
Контакт 56 I/O — User I/O pin
Контакт 57 I/O — User I/O pin
Контакт 58 I/O — User I/O pin
Контакт 59 I/O — User I/O pin
Контакт 60 I/O — User I/O pin
Контакт 61 I/O — User I/O pin
Контакт 62 I/O — User I/O pin
Контакт 63 VCCINT — Core supply voltage (2.5 V)
Контакт 64 I/O — User I/O pin
Контакт 65 I/O — User I/O pin
Контакт 66 I/O — User I/O pin
Контакт 67 I/O — User I/O pin
Контакт 68 I/O — User I/O pin
Контакт 69 GND — Ground
Контакт 70 I/O — User I/O pin
Контакт 71 I/O — User I/O pin
Контакт 72 I/O — User I/O pin
Контакт 73 I/O — User I/O pin
Контакт 74 I/O — User I/O pin
Контакт 75 I/O — User I/O pin
Контакт 76 I/O — User I/O pin
Контакт 77 I/O — User I/O pin
Контакт 78 VCCIO — I/O supply voltage
Контакт 79 I/O — User I/O pin
Контакт 80 I/O — User I/O pin
Контакт 81 I/O — User I/O pin
Контакт 82 I/O — User I/O pin
Контакт 83 I/O — User I/O pin
Контакт 84 GND — Ground
Контакт 85 I/O — User I/O pin
Контакт 86 I/O — User I/O pin
Контакт 87 I/O — User I/O pin
Контакт 88 I/O — User I/O pin
Контакт 89 I/O — User I/O pin
Контакт 90 I/O — User I/O pin
Контакт 91 I/O — User I/O pin
Контакт 92 I/O — User I/O pin
Контакт 93 VCCINT — Core supply voltage (2.5 V)
Контакт 94 I/O — User I/O pin
Контакт 95 I/O — User I/O pin
Контакт 96 I/O — User I/O pin
Контакт 97 I/O — User I/O pin
Контакт 98 I/O — User I/O pin
Контакт 99 GND — Ground
Контакт 100 I/O — User I/O pin
Контакт 101 I/O — User I/O pin
Контакт 102 I/O — User I/O pin
Контакт 103 I/O — User I/O pin
Контакт 104 I/O — User I/O pin
Контакт 105 I/O — User I/O pin
Контакт 106 I/O — User I/O pin
Контакт 107 I/O — User I/O pin
Контакт 108 VCCIO — I/O supply voltage
Контакт 109 I/O — User I/O pin
Контакт 110 I/O — User I/O pin
Контакт 111 I/O — User I/O pin
Контакт 112 I/O — User I/O pin
Контакт 113 I/O — User I/O pin
Контакт 114 GND — Ground
Контакт 115 I/O — User I/O pin
Контакт 116 I/O — User I/O pin
Контакт 117 I/O — User I/O pin
Контакт 118 I/O — User I/O pin
Контакт 119 I/O — User I/O pin
Контакт 120 I/O — User I/O pin
Контакт 121 I/O — User I/O pin
Контакт 122 I/O — User I/O pin
Контакт 123 VCCINT — Core supply voltage (2.5 V)
Контакт 124 I/O — User I/O pin
Контакт 125 I/O — User I/O pin
Контакт 126 I/O — User I/O pin
Контакт 127 I/O — User I/O pin
Контакт 128 I/O — User I/O pin
Контакт 129 GND — Ground
Контакт 130 I/O — User I/O pin
Контакт 131 I/O — User I/O pin
Контакт 132 I/O — User I/O pin
Контакт 133 I/O — User I/O pin
Контакт 134 I/O — User I/O pin
Контакт 135 I/O — User I/O pin
Контакт 136 I/O — User I/O pin
Контакт 137 I/O — User I/O pin
Контакт 138 VCCIO — I/O supply voltage
Контакт 139 I/O — User I/O pin
Контакт 140 I/O — User I/O pin
Контакт 141 I/O — User I/O pin
Контакт 142 I/O — User I/O pin
Контакт 143 I/O — User I/O pin
Контакт 144 GND — Ground
Контакт 145 I/O — User I/O pin
Контакт 146 I/O — User I/O pin
Контакт 147 I/O — User I/O pin
Контакт 148 I/O — User I/O pin
Контакт 149 I/O — User I/O pin
Контакт 150 I/O — User I/O pin
Контакт 151 I/O — User I/O pin
Контакт 152 I/O — User I/O pin
Контакт 153 VCCINT — Core supply voltage (2.5 V)
Контакт 154 I/O — User I/O pin
Контакт 155 I/O — User I/O pin
Контакт 156 I/O — User I/O pin
Контакт 157 I/O — User I/O pin
Контакт 158 I/O — User I/O pin
Контакт 159 GND — Ground
Контакт 160 I/O — User I/O pin
Контакт 161 I/O — User I/O pin
Контакт 162 I/O — User I/O pin
Контакт 163 I/O — User I/O pin
Контакт 164 I/O — User I/O pin
Контакт 165 I/O — User I/O pin
Контакт 166 I/O — User I/O pin
Контакт 167 I/O — User I/O pin
Контакт 168 VCCIO — I/O supply voltage
Контакт 169 I/O — User I/O pin
Контакт 170 I/O — User I/O pin
Контакт 171 I/O — User I/O pin
Контакт 172 I/O — User I/O pin
Контакт 173 I/O — User I/O pin
Контакт 174 GND — Ground
Контакт 175 I/O — User I/O pin
Контакт 176 I/O — User I/O pin
Контакт 177 I/O — User I/O pin
Контакт 178 I/O — User I/O pin
Контакт 179 I/O — User I/O pin
Контакт 180 I/O — User I/O pin
Контакт 181 I/O — User I/O pin
Контакт 182 I/O — User I/O pin
Контакт 183 VCCINT — Core supply voltage (2.5 V)
Контакт 184 I/O — User I/O pin
Контакт 185 I/O — User I/O pin
Контакт 186 I/O — User I/O pin
Контакт 187 I/O — User I/O pin
Контакт 188 I/O — User I/O pin
Контакт 189 GND — Ground
Контакт 190 I/O — User I/O pin
Контакт 191 I/O — User I/O pin
Контакт 192 I/O — User I/O pin
Контакт 193 I/O — User I/O pin
Контакт 194 I/O — User I/O pin
Контакт 195 I/O — User I/O pin
Контакт 196 I/O — User I/O pin
Контакт 197 I/O — User I/O pin
Контакт 198 VCCIO — I/O supply voltage
Контакт 199 I/O — User I/O pin
Контакт 200 I/O — User I/O pin
Контакт 201 I/O — User I/O pin
Контакт 202 I/O — User I/O pin
Контакт 203 I/O — User I/O pin
Контакт 204 GND — Ground
Контакт 205 I/O — User I/O pin
Контакт 206 I/O — User I/O pin
Контакт 207 I/O — User I/O pin
Контакт 208 I/O — User I/O pin

Типичное применение

EP1K50QC208-3 подходит для 6 применениеs: 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.

Справочные инженерные данные для EP1K50QC208-3 — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

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.

Сравнение с аналогами

Параметр Этот товар 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)

Ключевые отличия

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

Заметки по проектированию

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.

Информация о соответствии

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Без свинца
Unknown
Без галогенов
Unknown
Конфликтные минералы
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.

Данные проверены: 2026-09-07 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

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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