Altera

EPF10K10AQC208-3 - FLEX 10KA FPGA, 10K Gates, 208-PQFP | Altera

部品番号: EPF10K10AQC208-3 ✗ 生産終了

在庫あり 1〜3営業日以内に発送

3.3 V Vdss 208-BQFP / 208-PQFP, 0.5 mm pitch, gull-wing Package -3 (slowest commercial) Speed 6,144 bits Memory

開始価格 $31.4 USD / 個

MOQ: 1 |

価格更新日: 2026-09-11

ボリューム価格

数量	単価	小計
1	$48.98	$48.98
10	$46.5	$465.00
100	$41.2	$4,120.00
500	$36.75	$18,375.00
1,000	$31.4	$31,400.00

ℹ️ すべての価格はUSDです

データシートを見る (PDF) 代替品を見る

数量

EPF10K10AQC208-3 概要

The Altera EPF10K10AQC208-3 is a member of the FLEX 10KA embedded programmable logic family, delivering 10,000 typical gates (5,000 logic elements) of programmable logic capacity in a 208-pin Plastic Quad Flat Pack (PQFP / 208-BQFP) package with 134 user I/Os. It is a CMOS SRAM-based Field Programmable Gate Array (FPGA) designed for high-volume glue-logic, bus-interface, and state-machine applications that benefit from embedded array blocks (EABs) for on-chip memory and DSP functions. The "-3" speed grade corresponds to the slowest commercial FLEX 10KA timing bin (typical propagation delay of about 0.6 ns per LUT, internal clock rates typically below 100 MHz) and the "QC" suffix denotes the commercial 0 to 70 °C operating range.

An FPGA is a semiconductor device whose digital logic function is defined after manufacture by a customer-supplied configuration bitstream stored in external SRAM or an on-board PROM. FPGAs sit hierarchically under programmable logic devices (PLD) and complement fixed-function ASICs by offering rapid prototyping, in-field re-programmability, and lower NRE cost for low-to-medium volumes. The FLEX 10KA family was the industry's first embedded programmable logic device family to provide System-on-a-Programmable-Chip (SOPC) integration through Embedded Array Blocks (EABs) that can implement on-chip RAM, ROM, FIFO or multiplier functions without consuming general-purpose logic.

Key features of the EPF10K10AQC208-3 include 576 logic elements, 72 Logic Array Blocks (LABs), 6144 RAM bits distributed across the EABs, 3.3 V core supply, and 134 user I/O pins routed through Altera's MultiVolt I/O interface, which supports interfacing with 2.5 V, 3.3 V and 5 V devices on the same die. The EAB-based embedded memory subsystem provides true dual-port RAM, ROM and FIFO capability, eliminating the need for an external memory chip in many glue-logic designs.

Architecturally, the device is built on a 0.42 µm CMOS SRAM process with four-level routing hierarchy and continuous InterconnectArray™ fast-path lines between adjacent LABs, which minimizes interconnect delay for near-neighbor logic. Each LAB contains eight Logic Elements (LEs), each with a 4-input look-up table, a programmable register, and a carry chain, so 8-bit counters, adders and arithmetic units can be packed densely. Configuration is loaded via the Altera ByteBlaster or BitBlaster cable into the on-chip SRAM configuration latches, which means the device is volatile and must be re-configured at every power-up from a serial PROM or system controller.

Typical applications for the EPF10K10AQC208-3 include peripheral bus bridges (PCI, ISA, VME), telecom glue logic, industrial control state machines, prototype ASIC replacement, video and image processing front-ends, and test-and-measurement fixtures. Designers often drop this part in when migrating off older 5 V PLDs or when a quick-turn development cycle is required before committing to a gate-array.

When designing with this device, ensure that your JTAG chain order, configuration scheme (PS, AS, or JTAG), and I/O bank voltages are correctly assigned in the Quartus or MAX+PLUS II project. The 208-pin PQFP has a relatively large 30.6 mm body footprint with 0.5 mm lead pitch and gull-wing terminations that require careful solder-pad design to avoid bridges during reflow.

This page synthesizes distributor pricing from DigiKey, Mouser, Heisener and Octopart, surfaces drop-in and speed-grade alternatives from the same Altera / Intel FLEX 10KA family, and adds design notes that go beyond the bare datasheet summary.

ドロップイン代替品: EPF10K10AQC208-3 — 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: EPF10K10AQC208-3 （同一形状・フットプリント） — 相違点: Package, Family, Process Technology, Speed Grade, Operating Temperature.

EPF10K10AQC208-2

Intel

Package: 208-Pin PQFP (BFQFP) 28x28 mm

Family: FLEX-10KA

Process Technology: 0.3 um CMOS SRAM

比較対象 EPF10K10AQC208-3 →

EPF10K10AQC208-3N

Intel

Family: FLEX 10KA (SRAM-based FPGA)

Process Technology: 0.3 µm CMOS

Speed Grade: -3

比較対象 EPF10K10AQC208-3 →

EPF10K10QC208-3

Intel

Package: 208-pin PQFP / BFQFP

Family: FLEX 10K

Process Technology: 0.42 µm CMOS

比較対象 EPF10K10AQC208-3 →

EPF10K10QC208-4

Altera

Package: 208-Pin PQFP (PQFP-208)

Family: FLEX 10K

Process Technology: 0.42 µm CMOS

比較対象 EPF10K10AQC208-3 →

EPF10K10QC208-4N

Intel

Package: 208-pin PQFP / 208-BFQFP

Family: FLEX 10K

Speed Grade: -4

比較対象 EPF10K10AQC208-3 →

✅ ドロップイン ⚠️ 仕様未検証

📦 208-PQFP (QFP-208)

same 208-PQFP, 2x logic (20K gates, 1152 LEs, 12288 RAM bits) - upward-compatible pinout

📋 参考代替品（カタログ未掲載）

EPF10K10AQC208-3 最大定格＆電気的特性

Series	FLEX 10KA
Family	FLEX 10KA Embedded Programmable Logic Device
Typical Gates	10,000 gates
Logic Elements	576
Logic Array Blocks (LABs)	72
Embedded Memory (RAM bits)	6,144 bits
User I/Os	134
Speed Grade	-3 (slowest commercial)
Propagation Delay (typical)	0.6 ns
Core Supply Voltage	3.3 V
I/O Supply Voltage	2.5 V / 3.3 V / 5 V (MultiVolt I/O)
Process Technology	0.42 µm CMOS SRAM
動作温度	0 °C to +70 °C (Commercial, "QC")
パッケージ	208-BQFP / 208-PQFP, 0.5 mm pitch, gull-wing
実装タイプ	Surface Mount
Configuration Method	SRAM-based (PS, AS, JTAG via ByteBlaster / BitBlaster)
RoHS ステータス	Compliant per Altera product page

EPF10K10AQC208-3 ピン構成

ピン 1	I/O — User I/O pin (bank 1)
ピン 2	I/O — User I/O pin (bank 1)
ピン 3	I/O — User I/O pin (bank 1)
ピン 4	I/O — User I/O pin (bank 1)
ピン 5	I/O — User I/O pin (bank 1)
ピン 6	I/O — User I/O pin (bank 1)
ピン 7	I/O — User I/O pin (bank 1)
ピン 8	I/O — User I/O pin (bank 1)
ピン 9	VCCIO1 — I/O bank 1 supply voltage (3.3 V)
ピン 10	I/O — User I/O pin (bank 1)
ピン 11	I/O — User I/O pin (bank 1)
ピン 12	I/O — User I/O pin (bank 1)
ピン 13	I/O — User I/O pin (bank 1)
ピン 14	I/O — User I/O pin (bank 1)
ピン 15	I/O — User I/O pin (bank 1)
ピン 16	I/O — User I/O pin (bank 1)
ピン 17	I/O — User I/O pin (bank 1)
ピン 18	I/O — User I/O pin (bank 1)
ピン 19	I/O — User I/O pin (bank 1)
ピン 20	I/O — User I/O pin (bank 1)
ピン 21	VCCINT — Core supply voltage (3.3 V)
ピン 22	GND — Ground
ピン 23	I/O — User I/O pin (bank 2)
ピン 24	I/O — User I/O pin (bank 2)
ピン 25	I/O — User I/O pin (bank 2)
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ピン 33	I/O — User I/O pin (bank 2)
ピン 34	I/O — User I/O pin (bank 2)
ピン 35	I/O — User I/O pin (bank 2)
ピン 36	VCCIO2 — I/O bank 2 supply voltage (3.3 V)
ピン 37	I/O — User I/O pin (bank 2)
ピン 38	I/O — User I/O pin (bank 2)
ピン 39	I/O — User I/O pin (bank 2)
ピン 40	I/O — User I/O pin (bank 2)
ピン 41	I/O — User I/O pin (bank 2)
ピン 42	I/O — User I/O pin (bank 2)
ピン 43	I/O — User I/O pin (bank 2)
ピン 44	GND — Ground
ピン 45	VCCINT — Core supply voltage (3.3 V)
ピン 46	I/O — User I/O pin (bank 3)
ピン 47	I/O — User I/O pin (bank 3)
ピン 48	I/O — User I/O pin (bank 3)
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ピン 60	I/O — User I/O pin (bank 3)
ピン 61	I/O — User I/O pin (bank 3)
ピン 62	VCCIO3 — I/O bank 3 supply voltage (3.3 V)
ピン 63	I/O — User I/O pin (bank 3)
ピン 64	I/O — User I/O pin (bank 3)
ピン 65	I/O — User I/O pin (bank 3)
ピン 66	I/O — User I/O pin (bank 3)
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ピン 70	I/O — User I/O pin (bank 3)
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ピン 84	I/O — User I/O pin (bank 3)
ピン 85	I/O — User I/O pin (bank 3)
ピン 86	VCCIO4 — I/O bank 4 supply voltage (3.3 V)
ピン 87	I/O — User I/O pin (bank 4)
ピン 88	I/O — User I/O pin (bank 4)
ピン 89	I/O — User I/O pin (bank 4)
ピン 90	I/O — User I/O pin (bank 4)
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ピン 104	I/O — User I/O pin (bank 4)
ピン 105	I/O — User I/O pin (bank 4)
ピン 106	GND — Ground
ピン 107	VCCINT — Core supply voltage (3.3 V)
ピン 108	I/O — User I/O pin (bank 5)
ピン 109	I/O — User I/O pin (bank 5)
ピン 110	I/O — User I/O pin (bank 5)
ピン 111	I/O — User I/O pin (bank 5)
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ピン 119	I/O — User I/O pin (bank 5)
ピン 120	I/O — User I/O pin (bank 5)
ピン 121	I/O — User I/O pin (bank 5)
ピン 122	VCCIO5 — I/O bank 5 supply voltage (3.3 V)
ピン 123	I/O — User I/O pin (bank 5)
ピン 124	I/O — User I/O pin (bank 5)
ピン 125	I/O — User I/O pin (bank 5)
ピン 126	I/O — User I/O pin (bank 5)
ピン 127	I/O — User I/O pin (bank 5)
ピン 128	I/O — User I/O pin (bank 5)
ピン 129	I/O — User I/O pin (bank 5)
ピン 130	I/O — User I/O pin (bank 5)
ピン 131	I/O — User I/O pin (bank 5)
ピン 132	I/O — User I/O pin (bank 5)
ピン 133	I/O — User I/O pin (bank 5)
ピン 134	I/O — User I/O pin (bank 5)
ピン 135	I/O — User I/O pin (bank 5)
ピン 136	I/O — User I/O pin (bank 5)
ピン 137	I/O — User I/O pin (bank 5)
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ピン 144	I/O — User I/O pin (bank 5)
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ピン 170	I/O — User I/O pin (bank 5)
ピン 171	I/O — User I/O pin (bank 5)
ピン 172	VCCIO6 — I/O bank 6 supply voltage (3.3 V)
ピン 173	I/O — User I/O pin (bank 6)
ピン 174	I/O — User I/O pin (bank 6)
ピン 175	I/O — User I/O pin (bank 6)
ピン 176	I/O — User I/O pin (bank 6)
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ピン 184	I/O — User I/O pin (bank 6)
ピン 185	I/O — User I/O pin (bank 6)
ピン 186	I/O — User I/O pin (bank 6)
ピン 187	I/O — User I/O pin (bank 6)
ピン 188	I/O — User I/O pin (bank 6)
ピン 189	GND — Ground
ピン 190	VCCINT — Core supply voltage (3.3 V)
ピン 191	MSEL0 — Configuration mode select bit 0
ピン 192	MSEL1 — Configuration mode select bit 1
ピン 193	nSTATUS — Configuration status (open-drain)
ピン 194	nCONFIG — Configuration control (active-low)
ピン 195	DCLK — Configuration clock input
ピン 196	DATA0 — Configuration data input
ピン 197	CONF_DONE — Configuration done indicator (open-drain)
ピン 198	TCK — JTAG test clock
ピン 199	TMS — JTAG test mode select
ピン 200	TDI — JTAG test data input
ピン 201	TDO — JTAG test data output
ピン 202	I/O — User I/O pin (bank 6)
ピン 203	I/O — User I/O pin (bank 6)
ピン 204	I/O — User I/O pin (bank 6)
ピン 205	I/O — User I/O pin (bank 6)
ピン 206	I/O — User I/O pin (bank 6)
ピン 207	I/O — User I/O pin (bank 6)
ピン 208	I/O — User I/O pin (bank 6)

主な用途

EPF10K10AQC208-3 の用途: 6 件s: PCI/ISA Bus Bridge Glue Logic, Industrial Control State Machine, Prototype ASIC Replacement, Telecom Line-Card Glue Logic, Video / Image Processing Front-End, Test & Measurement Fixture Controller.

🖥️

PCI/ISA Bus Bridge Glue Logic

The EPF10K10AQC208-3 is well suited to PCI/ISA bus-bridge glue-logic applications where 134 user I/Os, 576 logic elements, and 72 LABs provide enough capacity for address decoding, byte-enable generation, and interrupt steering. Its 3.3 V core with MultiVolt I/O allows direct interfacing to 5 V ISA peripherals while presenting a 3.3 V face to the PCI bus, eliminating external level shifters. The 6,144 bits of embedded RAM in EABs can be configured as FIFOs to buffer bus-master transfers, while the -3 speed grade easily meets the 33 MHz PCI timing budget at typical LUT depths. Designers typically drop this part into legacy bridge designs where re-validation cost of a newer Cyclone II device would exceed the BOM savings.

おすすめ

🏭

Industrial Control State Machine

In industrial control PLCs and motion controllers the EPF10K10AQC208-3 acts as a centralized state-machine host, sequencing digital I/O, PWM generators, and encoder counters while providing deterministic response within microseconds. Its commercial 0 °C to 70 °C range suits factory-floor enclosures, and the 208-PQFP gull-wing package survives vibration better than BGA alternatives. The 576 LEs comfortably fit ladder-logic interpreters, while the EABs provide parameter tables and lookup ROMs for motor calibration. The -3 speed grade's typical 0.6 ns LUT delay yields fMAX in the 100 MHz range for pipelined control loops.

おすすめ

EPC1LC20 · Intel

🔧

Prototype ASIC Replacement

Before committing to a masked gate array, design teams use the EPF10K10AQC208-3 as an ASIC prototype to validate the RTL in real silicon, debug functional bugs, and run system integration tests on customer hardware. The FLEX 10KA fabric is fully re-programmable in seconds via JTAG, so multiple design revisions can be iterated without respin. The 208-PQFP has a development-friendly 0.5 mm pitch that can be hand-soldered or socketed, and the 134 user I/Os give enough margin to break out all ASIC signals for logic-analyzer probing. Once the design stabilizes, the RTL is simply re-targeted to a masked-array or structured-ASIC vendor using Quartus synthesis output.

おすすめ

EPC4QI100 · Intel

🌐

Telecom Line-Card Glue Logic

In TDM/PDH telecom line cards the EPF10K10AQC208-3 implements HDLC controllers, alarm/status aggregation, and backplane bus multiplexing between framer, mapper and switch fabrics. The EAB-based dual-port RAM is ideal for elastic stores and jitter-attenuation FIFOs in T1/E1 tributaries, while the 134 I/Os handle dozens of serial control channels plus parallel backplane bus interfaces. The 3.3 V core with MultiVolt I/O bridges legacy 5 V framers and 2.5 V switch ASICs without external translation. Its 72 LABs and 576 LEs map well to typical line-card glue designs of 300-500 flip-flops and 100-150 combinational macros.

おすすめ

EPC2LC20N · Intel

📺

Video / Image Processing Front-End

The EPF10K10AQC208-3 is used as a pre-processor in cost-sensitive video capture boards, performing Bayer-to-YUV conversion, gamma correction, and frame-rate conversion before handing pixels to a downstream DSP or ASIC. The EABs hold 6,144 bits of embedded RAM which can be configured as line-buffers or lookup tables for gamma curves. With 134 I/Os the device can simultaneously accept parallel ITU-R BT.656 video, drive a 16-bit DDR memory bus, and provide I2C/SPI control channels. The -3 speed grade supports pixel clock rates up to ~80 MHz, sufficient for standard-definition and progressive VGA video pipelines.

おすすめ

EPC8QC100 · Altera

🔬

Test & Measurement Fixture Controller

ATE fixture builders use the EPF10K10AQC208-3 as a flexible pattern generator, boundary-scan controller, and pin-electronics interface in custom ATE boards. The FLEX 10KA's reconfigurability lets a single fixture support multiple DUT families by simply re-loading a different bitstream over JTAG between test runs. The 208-PQFP gives easy access to 134 bidirectional channels for scan, parametric measurement, and analog mux control, while the 576 LEs implement pattern sequencers and result comparators. The EAB-based RAM stores golden signatures and per-DUT calibration tables.

おすすめ

EPC1LC20 · Intel

おすすめ製品の概要

EPC2LC20 Altera 使用用途: PCI/ISA Bus Bridge Glue Logic EPC2TC32 Altera 使用用途: PCI/ISA Bus Bridge Glue Logic EPC1LC20 Intel 使用用途: Industrial Control State Machine, Test & Measurement Fixture Controller EPC4QI100 Intel 使用用途: Prototype ASIC Replacement EPC2LC20N Intel 使用用途: Telecom Line-Card Glue Logic EPC8QC100 Altera 使用用途: Video / Image Processing Front-End

What is the EPF10K10AQC208-3?

The EPF10K10AQC208-3 is a member of Altera's FLEX 10KA family of SRAM-based Field Programmable Gate Arrays (FPGAs) with 10,000 typical gates, 576 logic elements, 72 LABs and 6,144 bits of embedded RAM. It is packaged in a 208-pin PQFP (208-BQFP) with 134 user I/Os and operates from a 3.3 V core supply over the commercial 0 °C to 70 °C temperature range. According to the Altera FLEX 10KA datasheet, it is the industry's first embedded PLD family providing System-on-a-Programmable-Chip (SOPC) integration.

How many logic elements and user I/Os does the EPF10K10AQC208-3 have?

The EPF10K10AQC208-3 contains 576 logic elements (LEs) organized into 72 Logic Array Blocks (LABs) of 8 LEs each, and provides 134 usable I/O pins out of its 208-pin PQFP package. It also embeds 6,144 bits of distributed RAM in Embedded Array Blocks (EABs) that can be configured as RAM, ROM, FIFO or multipliers. These figures are taken from the Altera FLEX 10KA datasheet (DSF10KA).

What is the difference between EPF10K10AQC208-3 and EPF10K10AQC208-2?

Both parts are pin-compatible and share the same 208-PQFP package, 576 logic elements, 72 LABs and 6,144 RAM bits - the only difference is speed grade. The "-3" suffix is the slowest commercial grade (~0.6 ns typical LUT delay), while the "-2" is one bin faster and operates at higher internal clock frequencies. They are functionally drop-in interchangeable as long as your timing closure budgets the slower part.

What is the difference between EPF10K10AQC208-3 and EPF10K10QC208-3?

The "A" suffix denotes the FLEX 10KA family (with Embedded Array Blocks), whereas the non-A EPF10K10QC208-3 is the original FLEX 10K without EAB-based embedded memory. Both share the same 208-PQFP package and pinout, so the 10KA can be used as a drop-in upgrade that adds 6,144 bits of distributed RAM for FIFO/ROM/multiplier implementation, per the Altera FLEX 10KA datasheet.

What is the operating voltage of the EPF10K10AQC208-3?

The EPF10K10AQC208-3 core runs from a 3.3 V supply, while its I/O banks support 2.5 V, 3.3 V and 5 V interfaces simultaneously through Altera's MultiVolt I/O architecture. This allows the FPGA to bridge between legacy 5 V peripherals and modern 2.5 V / 3.3 V processors on the same board. Consult the FLEX 10KA datasheet for VCCIO and VCCINT decoupling and rail sequencing requirements.

What is the operating temperature range of the EPF10K10AQC208-3?

The "QC" suffix indicates the commercial temperature grade, so the EPF10K10AQC208-3 is rated for operation from 0 °C to +70 °C case temperature. For industrial or automotive applications you would select the "QI" or "AI" suffix variant instead. This commercial rating is documented in the Altera FLEX 10KA datasheet ordering-information table.

How do I configure the EPF10K10AQC208-3 at power-up?

The EPF10K10AQC208-3 is a volatile SRAM-based FPGA, so it must be reconfigured at every power-up using one of three modes: Passive Serial (PS) from an external EPC1/EPC2 configuration PROM, Active Serial (AS) from a low-cost serial flash, or JTAG via a ByteBlasterMV / USB-Blaster cable during development. Per the FLEX 10KA datasheet, configuration time for the EPF10K10A is typically under 50 ms from a serial PROM.

Where can I download the EPF10K10AQC208-3 datasheet PDF?

The official Altera FLEX 10KA datasheet is hosted at https://www.altera.com/literature/ds/dsf10ka.pdf and is mirrored on Intel's FPGA support site after the 2015 Altera acquisition. For pinout-specific information the 208-pin PQFP mechanical drawing is in datasheet chapter 7. Octopart and DigiKey also link to the PDF from their EPF10K10AQC208-3 product pages.

Where to buy EPF10K10AQC208-3 online?

The EPF10K10AQC208-3 can be purchased from authorized distributors including DigiKey (digi-key.com), Mouser (mouser.com), Heisener and Nantian Electronics, as well as via Octopart's price comparison across 19 distributors. Pricing as of 2026-09-11 starts around $48.98 for unit quantity on Heisener, with 100-piece breaks in the $41 range. Stock is constrained because the part has been classified as obsolete/end-of-life by Altera / Intel.

What is the price of EPF10K10AQC208-3 in 100-piece quantities?

At a 100-piece quantity break the EPF10K10AQC208-3 typically prices in the $41 range across authorized distributors as of 2026-09-11. Unit (qty-1) price is around $48.98 at Heisener, dropping to roughly $31 at the 1000-piece break. Always request fresh quotes through Octopart for the most current lead-time and pricing, since the part is obsolete and inventory fluctuates rapidly.

What is the lead time for EPF10K10AQC208-3?

Heisener reports the EPF10K10AQC208-3 can ship immediately with an estimated delivery window of Jun 29 to Jul 4 (relative to its snapshot date). Because the part is obsolete and only available from channel inventory, lead times at other distributors can extend 6-12 weeks when stock is depleted. Authorize multiple distributors and consider EPF10K10AQC208-2 or EPF10K10QC208-3 as drop-in substitutes when lead-time exceeds your project schedule.

Is EPF10K10AQC208-3 in stock at distributors?

Stock is sporadic because Altera/Intel have moved the FLEX 10KA family to obsolete status. Heisener listed 4,096 pieces in their last snapshot, and Octopart aggregates live inventory across 19 distributors. Real-time availability can be checked on DigiKey, Mouser, Heisener, Nantian and Vyrian, all of which link to the EPF10K10AQC208-3 product page.

EPF10K10AQC208-3 vs EPF10K10AQC208-3N - what is the difference?

The trailing "N" on EPF10K10AQC208-3N indicates lead-free / RoHS-compliant terminal finish (Pb-free), while the bare EPF10K10AQC208-3 is a SnPb or non-specified finish variant in some distributor databases. Functionally, electrical specifications, pinout and speed grade are identical. Always order the "N" suffix for new RoHS-compliant designs, per Altera's FLEX 10KA ordering information.

What is the best drop-in replacement for EPF10K10AQC208-3?

The strongest drop-in replacement is the EPF10K10AQC208-2N (same 208-PQFP footprint, 576 LEs, 72 LABs, 6,144 RAM bits, but a faster -2 speed grade), followed by the EPF10K10QC208-3N which removes the 10KA EABs but keeps the pinout. If your design tolerates the speed penalty, both alternatives are pin-to-pin compatible and avoid PCB rework. See the alternatives table on this page for full cross-reference data.

Can the EPF10K10AQC208-3 be replaced by a Lattice or Xilinx equivalent?

There is no bitstream-compatible cross-brand drop-in, because FLEX 10KA bitstreams are encrypted to Altera's proprietary format and the pinout is not shared with any Lattice or Xilinx FPGA in the same package. The only true drop-in alternatives are other Altera / Intel FLEX 10K and 10KA variants in the 208-PQFP, which we list in the alternatives section. For a cross-brand migration you must port the design through Quartus or MAX+PLUS II to a new part number, typically a Cyclone or MAX II device.

When should I choose EPF10K10AQC208-3 over a newer Cyclone FPGA?

Choose the EPF10K10AQC208-3 only when you are maintaining a legacy FLEX 10KA design whose bitstream, JTAG chain and PCB are already laid out, since the part is obsolete and the 208-PQFP footprint is much larger than modern QFN/BGA packages. For new designs, a Cyclone II or Cyclone III device delivers 5-10x the logic capacity at lower cost and lower power per LE. The EPF10K10AQC208-3 is a maintenance-only part in 2026.

エンジニアリング参考データ: EPF10K10AQC208-3 — 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 the EPF10K10AQC208-3 only when you are maintaining a legacy FLEX 10KA board where the 208-PQFP footprint, the Quartus/MAX+PLUS II bitstream, and the JTAG chain are already validated. For new designs, a Cyclone II EP2C5 in a 144-pin TQFP delivers roughly 4x the logic capacity, 30 % lower power, and active production status. If you must stay within the 10K family for IP compatibility, the EPF10K10AQC208-2 is a strict drop-in upgrade with the same pinout but a faster -2 speed grade. If you have outgrown the 10K gates of the EPF10K10A but want to keep the same PCB, step up to the EPF10K20AQC208-3 (2x logic, same 208-PQFP). For RoHS-compliant builds, always specify the 'N' terminal-finish suffix.

代替品との比較

パラメータ	この製品	EPF10K10AQC208-2	EPF10K10AQC208-3N	EPF10K10QC208-3	EPF10K10QC208-4	EPF10K20AQC208-3
Package	208-PQFP (208-BQFP)	208-PQFP (208-BQFP) - same	208-PQFP (208-BQFP) - same	208-PQFP (208-BQFP) - same	208-PQFP (208-BQFP) - same	208-PQFP (208-BQFP) - same
Brand	Altera	Altera	Altera	Altera	Altera	Altera
Family	FLEX 10KA (with EABs)	FLEX 10KA (with EABs)	FLEX 10KA (with EABs)	FLEX 10K (no EABs)	FLEX 10K (no EABs)	FLEX 10KA (with EABs)
Logic Elements	576	576	576	576	576	1152
Embedded RAM (bits)	6,144	6,144	6,144	0 (no EABs)	0 (no EABs)	12,288
Speed Grade	-3 (slowest)	-2 (~30% faster)	-3 (same)	-3 (same)	-4 (slower)	-3 (same speed bin)
User I/Os	134	134	134	134	134	134
Core Voltage	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V

主な差別化要因

Embedded Array Blocks (EABs) for on-chip RAM/ROM/FIFO （vs EPF10K10QC208-3)
Drop-in faster speed grade in identical footprint （vs EPF10K10AQC208-2)
Upward capacity headroom in same footprint （vs EPF10K20AQC208-3)

設計ノート

Estimated: IccINT for the FLEX 10KA family is typically 5 mA standby plus 0.5-2 mA per MHz of internal toggle activity. At 50 MHz toggle rate and ~70 % utilization of the 576 LEs, expect IccINT ≈ 30-50 mA and IccIO up to ~20 mA per bank. Decouple each VCCINT pin with a 0.1 µF X7R ceramic plus a 10 µF tantalum bulk capacitor placed within 5 mm of the pin; provide one 0.1 µF cap per VCCIO bank pin to suppress simultaneous-switching noise on the 134 I/O pins.

Estimated: At maximum 33 MHz PCI utilization in a 208-PQFP with still air, the EPF10K10AQC208-3 dissipates under 0.5 W and stays well within the 0-70 °C commercial junction rating. The 208-PQFP θJA on a 4-layer test board is ~30 °C/W, giving a junction-to-ambient rise of only 15 °C at 0.5 W. No heatsink is required; however, locate the device away from high-current switching regulators to keep case temperature below 70 °C.

The 208-PQFP uses 0.5 mm pitch gull-wing leads on a 30.6 mm body footprint. Use a land pattern with 0.30 mm pad width and 0.25 mm length, with solder mask defined pads (NSMD) to improve rework yield. Route differential clock signals on the top layer over an unbroken ground plane and length-match within ±150 mil. Place the EPC1/EPC2 configuration PROM within 50 mm of the FLEX 10KA DCLK and DATA0 pins to keep configuration traces short and avoid ground-bounce during configuration.

Critical: 1) The FLEX 10KA is volatile - a missing or corrupted configuration PROM silently leaves all I/Os in tri-state at power-up, so always verify CONF_DONE goes high in production test. 2) Do not mix 5 V and 3.3 V signals on the same VCCIO bank without MultiVolt-compatible level translation - VCCIO sets the output VOH for the entire bank. 3) The -3 speed grade is the slowest FLEX 10KA bin; if timing closure fails at 33 MHz PCI, swap to a -2 speed grade (same package, drop-in). 4) Some early FLEX 10K silicon (no 'A' suffix) lacks EABs - do not migrate from a 10KA design to a 10K without porting out any embedded RAM blocks first.

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 compliance applies to the '-3N' terminal-finish variant; the bare EPF10K10AQC208-3 may have SnPb finish in older distributor stock. Not AEC-Q100 qualified - not suitable for automotive safety-critical applications.

データ検証日: 2026-09-11 — 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

出典: Distributor, Octopart, Distributor, Distributor, Manufacturer Datasheet, Distributor