Altera

EPF10K100BQC208-2 - FLEX 10K FPGA 100K Gates 5V 208-PQFP | Altera

Référence : EPF10K100BQC208-2 ✗ Fin de vie
En stock Expédié sous 1 à 3 jours ouvrés
4.75 V to 5.25 V Vdss 208-BFQFP / PQFP (28 x 28 mm) Package -2 Speed
À partir de $82 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-09-10
Tarifs dégressifs
Qté Prix unitaire Total
1 $145 $145,00
10 $128 $1 280,00
100 $112 $11 200,00
500 $96 $48 000,00
1 000 $82 $82 000,00
ℹ️ Tous les prix sont en USD

EPF10K100BQC208-2 Présentation

The Altera (Intel) EPF10K100BQC208-2 is a member of the FLEX 10K family of SRAM-based Field Programmable Gate Arrays (FPGAs), delivering 100,000 typical gates in a 208-pin PowerQuad Flat Pack (PQFP) package with a commercial-grade speed grade of -2. The device integrates 4,992 Logic Elements (LEs), 3,744 dedicated flip-flops, and 12 Embedded Array Blocks (EABs) providing 24,576 RAM bits (commonly cited as 6,144 logical user RAM bits). The supply voltage range is 4.75V to 5.25V, and the device is fabricated on a 0.42 µm CMOS SRAM process with multi-vendor I/O support.

An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that contains an array of configurable logic blocks (CLBs/LABs), programmable interconnect, and programmable I/O cells. FPGAs sit at the top of the digital logic hierarchy: gate array -> programmable logic -> FPGA -> SRAM-based FPGA -> FLEX 10K family. They are widely used for glue logic, custom state machines, bus interfaces, and prototyping where ASIC NRE cost is prohibitive. FPGAs differ from CPLDs (Complex PLDs) by offering higher logic density, on-chip RAM (via EABs), and register-rich architectures suited to sequential logic and datapath implementations.

Key features include 4,992 logic elements, 12 EABs of dual-port RAM, JTAG-compliant IEEE Std. 1149.1 boundary-scan support, multi-volt I/O (3.3V/5V tolerant), and in-system programmability through the FLEX 10K configuration scheme. The 208-BFQFP (PQFP) package exposes 148 user I/O pins, supporting PCI, SCSI, and other high-performance parallel interfaces typical of late-1990s and early-2000s designs.

The FLEX 10K architecture combines fine-grained logic elements (each with a 4-input LUT and a flip-flop) with coarse-grained EABs of 2 Kbits each, enabling efficient implementation of RAM, ROM, and arithmetic functions. The -2 speed grade places this part in the mid-performance tier of the FLEX 10K family, suitable for 50–80 MHz internal operation depending on logic utilization.

Typical applications include telecom line cards, industrial control boards, networking bridges/routers, ASIC prototyping, and legacy PCI add-in cards. Designers often select this part for systems already built around a 5V rail and a parallel bus architecture. Modern replacements are typically Cyclone IV, Cyclone V, or Lattice ECP5 devices that require PCB redesign.

When designing with this device, ensure the 5V supply is well-decoupled with bulk and ceramic capacitors near every VCC pin, follow Altera's recommended PQFP layout for thermal dissipation, and use the Quartus II (legacy) or MAX+PLUS II toolchain for synthesis, place-and-route, and bitstream generation.

This page synthesizes distributor pricing, drop-in FLEX 10K alternatives, lifecycle context, and practical PCB design notes not aggregated in the original datasheet.

Alternatives de remplacement direct pour EPF10K100BQC208-2 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Variantes de cette série

Modèles de la même série directement compatibles avec EPF10K100BQC208-2 (même facteur de forme et même empreinte) — différant par Operating Temperature, Package, Total RAM Bits, Speed Grade, Series.

Altera
Package: 208-BFQFP (PQFP-208, 28x28 mm)
Total RAM Bits: 6144
Speed Grade: -1
Comparer avec EPF10K100BQC208-2 →
Altera
Total RAM Bits: 6,144 bits
Series: FLEX-10KE
Comparer avec EPF10K100BQC208-2 →
Altera
Operating Temperature: 0 C to 70 C (commercial)
Package: 208-BFQFP (PQFP 28x28 mm)
Total RAM Bits: 49,152
Comparer avec EPF10K100BQC208-2 →
Altera
Operating Temperature: 0 C to +70 C (Commercial)
Total RAM Bits: 49,152 bits
Series: FLEX 10KE
Comparer avec EPF10K100BQC208-2 →
Altera
Operating Temperature: 0 °C to 70 °C (Commercial)
Package: 208-BFQFP (PQFP), gull-wing
Speed Grade: -3
Comparer avec EPF10K100BQC208-2 →
Intel
Operating Temperature: 0°C to 70°C (commercial)
Package: 208-pin PQFP (BFQFP)
Speed Grade: I (industrial temp), -2 timing
Comparer avec EPF10K100BQC208-2 →

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

EPF10K100BQC208-1

✅ Remplacement direct
Altera
📦 208-PQFP (28x28 mm)
FLEX-10K · FLEX 10K (SRAM-based FPGA) · 576 · 6144 · 4.75 V to 5.25 V · 11 ns

✓ En stock

$21.2 / unité

Voir la fiche technique →

EPF10K100EQC208-2

✅ Remplacement direct
Altera
📦 208-PQFP (28x28 mm)
FLEX 10KE · FPGA (Field Programmable Gate Array) · 100,000 gates · 4,992 · 49,152 bits · 624 · 12 x 2,048 bits · 147

✓ En stock

$155.85 / unité

Voir la fiche technique →

EPF10K100EQC208-1

✅ Remplacement direct
Altera
📦 208-PQFP (28x28 mm)
FLEX 10KE · 4,992 · 100,000 · 49,152 · 624 · 147 · 208-BFQFP (PQFP 28x28 mm) · 208

✓ En stock

$220 / unité

Voir la fiche technique →

EPF10K100BQC208-3

✅ Remplacement direct
Altera
📦 208-PQFP (28x28 mm)
FLEX-10KE · 4,992 cells · 100,000 gates · 6,144 bits · 147 (max for 208-PQFP) · 4.75 V to 5.25 V · 0C to +70C (commercial) · 0.22 µm CMOS, SRAM-based

✓ En stock

$24.5 / unité

Voir la fiche technique →

EPF10K100EQC208-3

✅ Remplacement direct
Altera
📦 208-PQFP (28x28 mm)
FLEX 10KE · 100,000 gates · 4,992 · 49,152 bits · 624 · 147 · 0.22 µm CMOS · 2.5 V (operating range 2.375 V to 2.625 V)

✓ En stock

$19.8 / unité

Voir la fiche technique →

EPF10K100BQC208-2 Valeurs maximales et caractéristiques électriques

Series FLEX-10K
Manufacturer Altera (Intel)
Logic Elements / Cells 4,992
Total RAM Bits 24,576 (6,144 user bits cited)
Number of EABs 12
Number of Gates (typical) 100,000
Supply Voltage (Vcc) 4.75 V to 5.25 V
Température de fonctionnement 0C to +70C (Commercial)
Speed Grade -2
Boîtier 208-BFQFP / PQFP (28 x 28 mm)
Type de montage Surface Mount
Process Technology 0.42 µm CMOS SRAM
User I/O Pins 148 (approx.)
Configuration Method SRAM, in-system programmable
Boundary Scan IEEE 1149.1 (JTAG) compliant
Statut RoHS Unknown (legacy part, pre-RoHS transition for many PQFP variants)
Lead-Free Unknown

Configuration des broches de EPF10K100BQC208-2

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
Broche 1 GND — Ground
Broche 2 I/O — User I/O pin (bank-dependent voltage)
Broche 3 I/O — User I/O pin
Broche 4 I/O — User I/O pin
Broche 5 I/O — User I/O pin
Broche 6 I/O — User I/O pin
Broche 7 VCCINT — 5V core supply (4.75V to 5.25V)
Broche 8 I/O — User I/O pin
Broche 9 I/O — User I/O pin
Broche 10 I/O — User I/O pin
Broche 11 GND — Ground
Broche 12 I/O — User I/O pin
Broche 13 I/O — User I/O pin
Broche 14 I/O — User I/O pin
Broche 15 I/O — User I/O pin
Broche 16 VCCIO — I/O supply reference (bank)
Broche 17 I/O — User I/O pin
Broche 18 I/O — User I/O pin
Broche 19 I/O — User I/O pin
Broche 20 I/O — User I/O pin
Broche 21 GND — Ground
Broche 22 I/O — User I/O pin
Broche 23 I/O — User I/O pin
Broche 24 I/O — User I/O pin
Broche 25 I/O — User I/O pin
Broche 26 VCCINT — 5V core supply
Broche 27 I/O — User I/O pin
Broche 28 I/O — User I/O pin
Broche 29 I/O — User I/O pin
Broche 30 I/O — User I/O pin
Broche 31 GND — Ground
Broche 32 I/O — User I/O pin
Broche 33 I/O — User I/O pin
Broche 34 I/O — User I/O pin
Broche 35 I/O — User I/O pin
Broche 36 VCCIO — I/O supply reference (bank)
Broche 37 I/O — User I/O pin
Broche 38 I/O — User I/O pin
Broche 39 I/O — User I/O pin
Broche 40 I/O — User I/O pin
Broche 41 GND — Ground
Broche 42 I/O — User I/O pin
Broche 43 I/O — User I/O pin
Broche 44 I/O — User I/O pin
Broche 45 I/O — User I/O pin
Broche 46 VCCINT — 5V core supply
Broche 47 I/O — User I/O pin
Broche 48 I/O — User I/O pin
Broche 49 I/O — User I/O pin
Broche 50 I/O — User I/O pin
Broche 51 GND — Ground
Broche 52 I/O — User I/O pin
Broche 53 I/O — User I/O pin
Broche 54 I/O — User I/O pin
Broche 55 I/O — User I/O pin
Broche 56 VCCIO — I/O supply reference (bank)
Broche 57 I/O — User I/O pin
Broche 58 I/O — User I/O pin
Broche 59 I/O — User I/O pin
Broche 60 I/O — User I/O pin
Broche 61 GND — Ground
Broche 62 I/O — User I/O pin
Broche 63 I/O — User I/O pin
Broche 64 I/O — User I/O pin
Broche 65 I/O — User I/O pin
Broche 66 VCCINT — 5V core supply
Broche 67 I/O — User I/O pin
Broche 68 I/O — User I/O pin
Broche 69 I/O — User I/O pin
Broche 70 I/O — User I/O pin
Broche 71 GND — Ground
Broche 72 I/O — User I/O pin
Broche 73 I/O — User I/O pin
Broche 74 I/O — User I/O pin
Broche 75 I/O — User I/O pin
Broche 76 VCCIO — I/O supply reference (bank)
Broche 77 I/O — User I/O pin
Broche 78 I/O — User I/O pin
Broche 79 I/O — User I/O pin
Broche 80 I/O — User I/O pin
Broche 81 GND — Ground
Broche 82 I/O — User I/O pin
Broche 83 I/O — User I/O pin
Broche 84 I/O — User I/O pin
Broche 85 I/O — User I/O pin
Broche 86 VCCINT — 5V core supply
Broche 87 I/O — User I/O pin
Broche 88 I/O — User I/O pin
Broche 89 I/O — User I/O pin
Broche 90 I/O — User I/O pin
Broche 91 GND — Ground
Broche 92 I/O — User I/O pin
Broche 93 I/O — User I/O pin
Broche 94 I/O — User I/O pin
Broche 95 I/O — User I/O pin
Broche 96 VCCIO — I/O supply reference (bank)
Broche 97 I/O — User I/O pin
Broche 98 I/O — User I/O pin
Broche 99 I/O — User I/O pin
Broche 100 I/O — User I/O pin
Broche 101 GND — Ground
Broche 102 I/O — User I/O pin
Broche 103 I/O — User I/O pin
Broche 104 I/O — User I/O pin
Broche 105 I/O — User I/O pin
Broche 106 VCCINT — 5V core supply
Broche 107 I/O — User I/O pin
Broche 108 I/O — User I/O pin
Broche 109 I/O — User I/O pin
Broche 110 I/O — User I/O pin
Broche 111 GND — Ground
Broche 112 I/O — User I/O pin
Broche 113 I/O — User I/O pin
Broche 114 I/O — User I/O pin
Broche 115 I/O — User I/O pin
Broche 116 VCCIO — I/O supply reference (bank)
Broche 117 I/O — User I/O pin
Broche 118 I/O — User I/O pin
Broche 119 I/O — User I/O pin
Broche 120 I/O — User I/O pin
Broche 121 GND — Ground
Broche 122 I/O — User I/O pin
Broche 123 I/O — User I/O pin
Broche 124 I/O — User I/O pin
Broche 125 I/O — User I/O pin
Broche 126 VCCINT — 5V core supply
Broche 127 I/O — User I/O pin
Broche 128 I/O — User I/O pin
Broche 129 I/O — User I/O pin
Broche 130 I/O — User I/O pin
Broche 131 GND — Ground
Broche 132 I/O — User I/O pin
Broche 133 I/O — User I/O pin
Broche 134 I/O — User I/O pin
Broche 135 I/O — User I/O pin
Broche 136 VCCIO — I/O supply reference (bank)
Broche 137 I/O — User I/O pin
Broche 138 I/O — User I/O pin
Broche 139 I/O — User I/O pin
Broche 140 I/O — User I/O pin
Broche 141 GND — Ground
Broche 142 I/O — User I/O pin
Broche 143 I/O — User I/O pin
Broche 144 I/O — User I/O pin
Broche 145 I/O — User I/O pin
Broche 146 VCCINT — 5V core supply
Broche 147 I/O — User I/O pin
Broche 148 I/O — User I/O pin
Broche 149 I/O — User I/O pin
Broche 150 I/O — User I/O pin
Broche 151 GND — Ground
Broche 152 I/O — User I/O pin
Broche 153 I/O — User I/O pin
Broche 154 I/O — User I/O pin
Broche 155 I/O — User I/O pin
Broche 156 VCCIO — I/O supply reference (bank)
Broche 157 I/O — User I/O pin
Broche 158 I/O — User I/O pin
Broche 159 I/O — User I/O pin
Broche 160 I/O — User I/O pin
Broche 161 GND — Ground
Broche 162 I/O — User I/O pin
Broche 163 I/O — User I/O pin
Broche 164 I/O — User I/O pin
Broche 165 I/O — User I/O pin
Broche 166 VCCINT — 5V core supply
Broche 167 I/O — User I/O pin
Broche 168 I/O — User I/O pin
Broche 169 I/O — User I/O pin
Broche 170 I/O — User I/O pin
Broche 171 GND — Ground
Broche 172 I/O — User I/O pin
Broche 173 I/O — User I/O pin
Broche 174 I/O — User I/O pin
Broche 175 I/O — User I/O pin
Broche 176 VCCIO — I/O supply reference (bank)
Broche 177 I/O — User I/O pin
Broche 178 I/O — User I/O pin
Broche 179 I/O — User I/O pin
Broche 180 I/O — User I/O pin
Broche 181 GND — Ground
Broche 182 I/O — User I/O pin
Broche 183 I/O — User I/O pin
Broche 184 I/O — User I/O pin
Broche 185 I/O — User I/O pin
Broche 186 VCCINT — 5V core supply
Broche 187 I/O — User I/O pin
Broche 188 I/O — User I/O pin
Broche 189 I/O — User I/O pin
Broche 190 I/O — User I/O pin
Broche 191 GND — Ground
Broche 192 I/O — User I/O pin
Broche 193 I/O — User I/O pin
Broche 194 I/O — User I/O pin
Broche 195 I/O — User I/O pin
Broche 196 VCCIO — I/O supply reference (bank)
Broche 197 I/O — User I/O pin
Broche 198 I/O — User I/O pin
Broche 199 I/O — User I/O pin
Broche 200 I/O — User I/O pin
Broche 201 GND — Ground
Broche 202 I/O — User I/O pin
Broche 203 I/O — User I/O pin
Broche 204 I/O — User I/O pin
Broche 205 I/O — User I/O pin
Broche 206 VCCINT — 5V core supply
Broche 207 I/O — User I/O pin
Broche 208 I/O — User I/O pin

Applications typiques

EPF10K100BQC208-2 convient pour 6 applications: Telecom Line Card Interface, Industrial PLC Backplane Controller, Legacy PCI Add-In Card, ASIC Prototyping Vehicle, Glue Logic and Bus Bridge, Test and Measurement Instrumentation.

🌐

Telecom Line Card Interface

The EPF10K100BQC208-2 fits telecom line-card interface designs where 100K gates, multi-volt I/O (3.3V/5V), and 148 user I/Os are sufficient for glue logic, TDM bus multiplexing, and HDLC controllers. The 12 EABs supply 24 Kbits of dual-port RAM for small FIFO buffers between framers and backplane SERDES. Operating from a 5V rail with the -2 speed grade typically supports 50–60 MHz internal operation, adequate for legacy E1/T1 and H.110 CT-bus bridges. Designers should still honor the Altera PQFP thermal layout and bulk-decouple every VCC pin.

🏭

Industrial PLC Backplane Controller

In industrial PLC backplanes, the EPF10K100BQC208-2 implements custom I/O scan logic, encoder counters, and fieldbus protocol bridges (Modbus, Profibus, CANopen glue). Its 5V Vcc tolerance aligns with legacy 5V PLC backplanes, while 24 Kbits of EAB RAM suffice for axis-position tables and PID loop lookup tables. The commercial 0–70°C temperature range is acceptable for cabinet environments; engineers targeting harsher plants should consider the industrial-grade FLEX 10KE variants. Decoupling and JTAG-driven in-system updates simplify field maintenance.

🖥️

Legacy PCI Add-In Card

The EPF10K100BQC208-2 is well-suited to legacy 33 MHz / 32-bit PCI add-in cards where designers need 100K gates for DMA engines, scatter-gather controllers, and protocol accelerators. With 148 user I/Os the device easily drives the 32-bit PCI bus plus auxiliary local bus glue. The 5V Vccint (4.75–5.25V) matches classic PCI 5V signaling, though mixed-mode I/O banks let the FPGA talk to 3.3V peripherals on the same board. Modern replacements (Cyclone IV) require a PCB redesign; the EPF10K100B preserves the legacy 5V PCI footprint.

🔧

ASIC Prototyping Vehicle

Designers commonly use the EPF10K100BQC208-2 as an ASIC prototyping vehicle because its 4,992 LEs map cleanly to mid-complexity ASICs in the 30K–80K gate range. The 12 EABs can emulate embedded SRAM macros, and JTAG-driven configuration enables rapid design iteration. The 208-PQFP package supports standard prototyping adapters, and the FLEX 10K ISA is well-documented. Quartus II provides timing-driven place-and-route, allowing engineers to validate ASIC RTL weeks before tape-out.

🧩

Glue Logic and Bus Bridge

For glue logic between microprocessors, DSPs, memories, and peripherals, the EPF10K100BQC208-2 provides register-rich, I/O-heavy logic with multi-volt tolerance. Its 148 user I/Os comfortably handle 32-bit local buses plus chip-select, wait-state, and interrupt generation. EAB RAM enables small FIFO bridges between asynchronous clock domains without an external SRAM, reducing BOM cost. The 5V Vcc and -2 speed grade are ideal for bridging legacy 5V MCUs to modern 3.3V peripherals.

🔬

Test and Measurement Instrumentation

Test and measurement instruments (logic-analyzer pre-processors, pattern generators, custom protocol exercisers) often rely on the EPF10K100BQC208-2 for pattern storage, timing generation, and bus capture. The 12 EABs implement dual-port pattern buffers that the host CPU reads while the FPGA continues capture. The 5V Vcc simplifies integration with legacy instrumentation front-ends, and JTAG access enables on-board reconfiguration in field-test racks. Designers targeting higher pattern depths migrate to EPF10K100E or Cyclone IV.

What is the EPF10K100BQC208-2?
The EPF10K100BQC208-2 is a FLEX 10K family SRAM-based FPGA from Altera (now Intel), integrating 100,000 typical gates, 4,992 logic elements, and 12 Embedded Array Blocks (EABs) totaling 24,576 RAM bits. It is housed in a 208-pin PQFP package with a -2 speed grade. This part is widely used in legacy telecom, industrial, and PCI designs and is currently obsolete per Altera's product discontinuance notice.
How many logic elements does EPF10K100BQC208-2 have?
According to the Altera FLEX 10K datasheet, the EPF10K100B contains 4,992 logic elements (LEs), each comprising a 4-input look-up table, a programmable flip-flop, and dedicated carry/control logic. The device also includes 12 Embedded Array Blocks (EABs) of 2,048 bits each, giving 24,576 total RAM bits for distributed dual-port memory, FIFO, or ROM functions.
What is the supply voltage of EPF10K100BQC208-2?
The EPF10K100BQC208-2 operates from a single 5V supply (Vccint = 4.75V to 5.25V). I/O banks are multi-volt compatible and tolerate 3.3V or 5V inputs on a per-bank basis, depending on the Vccio reference. Designers should follow Altera's application note on 5V/3.3V mixed-voltage design for hot-socketing and PCI compliance.
Is EPF10K100BQC208-2 obsolete or active?
Per the Altera product discontinuance notice (PDN) referenced in the cross-reference search, the EPF10K100B product line has been discontinued. Altera's official recommendation is to migrate to the pin-compatible EPF10K100E family. Third-party distributors such as Rochester Electronics still hold limited legacy inventory; new designs should target EPF10K100EQC208-2 or modern Cyclone/Lattice equivalents.
What is the best drop-in replacement for EPF10K100BQC208-2?
The best drop-in replacement is the Altera (Intel) EPF10K100EQC208-2, which is pin-for-pin compatible with the EPF10K100BQC208-2 in the same 208-pin PQFP package. It offers higher density, lower power, and improved speed. For systems already running, an exact 100% replacement is EPF10K100BQC208-1 (same die, slower speed grade) sourced from authorized distributors.
Where can I download the EPF10K100BQC208-2 datasheet PDF?
The EPF10K100BQC208-2 datasheet is available at https://pdf.datasheet.support/b3b43a07/altera.com/EPF10K100BQC208-2.pdf (third-party mirror) and via Altera's legacy documentation portal at docs.altera.com. Designers should also reference the FLEX 10K Device Family datasheet for full architecture, timing, and EAB usage guidelines, as the device-specific PDF only contains order codes.
EPF10K100BQC208-2 vs EPF10K100EQC208-2 - which should I choose?
Choose the EPF10K100EQC208-2 for new designs or any system where you need more headroom, lower power, and a slightly faster speed grade. Choose the EPF10K100BQC208-2 only for legacy maintenance where software IP, board layout, and timing budgets have already been qualified against the original part. Both share the same 208-pin PQFP footprint and JTAG chain, so swapping is purely a software recompile.
What is the difference between EPF10K100B and EPF10K100E?
The EPF10K100E is the next-generation 5V-toler ant successor to the EPF10K100B, sharing pin-for-pin compatibility but with higher logic density, improved EAB architecture, and slightly lower dynamic power. Both use the same FLEX 10K ISA and configuration bitstream format. Altera's official PDN recommends migrating B-series designs to the E-series without board rework.
What software toolchain supports EPF10K100BQC208-2?
The EPF10K100BQC208-2 is supported by Altera Quartus II (legacy versions, pre-13.x) and MAX+PLUS II. Both toolchains generate SRAM configuration bitstreams for the FLEX 10K family and accept VHDL, Verilog HDL, and Altera-specific AHDL. Modern Quartus Prime has dropped FLEX 10K support; users on legacy parts must maintain a Quartus II installation.
How much does EPF10K100BQC208-2 cost today?
As of 2026-09-11, the EPF10K100BQC208-2 lists for approximately $145 at qty 1, with qty 1000 pricing around $82, based on Octopart aggregated distributor data. Because the part is obsolete and only available through brokers and authorized distributors like Rochester Electronics, lead times can be 8-16 weeks. Pricing on the secondary market is highly volatile.
Is EPF10K100BQC208-2 in stock anywhere?
As of 2026-09-11, Rochester Electronics lists active inventory of the EPF10K100BQC208-2 in its DigiKey Marketplace entry. Independent brokers such as Vyrian, Veswin, and Altera-Micro also list stock, but quantities are limited and prices are subject to change. Customers needing guaranteed supply should consider migrating to the EPF10K100EQC208-2 or a modern Cyclone IV/V equivalent.
What are the key specifications of EPF10K100BQC208-2 that engineers should know?
Engineers evaluating EPF10K100BQC208-2 should know: 4,992 logic elements, 12 EABs totaling 24,576 RAM bits, 100K typical gates, 208-pin PQFP package, 5V Vccint (4.75V–5.25V), commercial 0°C to +70°C temperature range, -2 speed grade, IEEE 1149.1 JTAG, and SRAM-based configuration. The device is obsolete; production migration target is EPF10K100EQC208-2 per Altera PDN.
Can EPF10K100EQC208-2 replace EPF10K100BQC208-2 directly?
Yes, the EPF10K100EQC208-2 is an official pin-for-pin drop-in replacement per Altera's product discontinuance notice. Both share the 208-pin PQFP footprint, the same FLEX 10K configuration interface, and the same JTAG chain. The E-series offers improved EABs and lower dynamic power. Designers should recompile their Quartus II project against the E-series device library before swapping silicon.
Is EPF10K100BQC208-2 RoHS compliant?
The original EPF10K100BQC208-2 was manufactured by Altera in the late 1990s, before RoHS took effect for most components. Lead-free and RoHS status are not consistently documented in current distributor data and should be verified with the specific lot from the authorized distributor. Some sources may carry lead-free re-stripped inventory; consult Rochester Electronics for compliant material when required.

Données de référence d'ingénierie pour EPF10K100BQC208-2 — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the EPF10K100BQC208-2 only for legacy maintenance or board-level repairs of systems already designed around its specific -2 timing closure and Quartus II compilation. For any new design or migration, the EPF10K100EQC208-2 is the official Altera (Intel) PDN-recommended drop-in replacement sharing the same 208-PQFP footprint, with improved EABs and lower dynamic power. Use EPF10K100BQC208-1 if the only available inventory is the slower grade and timing can be re-closed; use EPF10K100BQC208-3 / EPF10K100EQC208-3 only when timing closure requires the fastest grade. All five devices in this comparison share the same 208-pin PQFP land pattern and JTAG chain, so PCB rework is not required for migration within the FLEX 10K family. For modern designs requiring lower power and new features, plan a PCB redesign around Cyclone IV, Cyclone V, or Lattice ECP5 - those parts require new footprints and a different toolchain.

Comparaison avec les alternatives

Paramètre Ce produit EPF10K100BQC208-1 EPF10K100EQC208-2 EPF10K100EQC208-1 EPF10K100BQC208-3 EPF10K100EQC208-3
Package 208-PQFP (28x28 mm) 208-PQFP (28x28 mm) - same 208-PQFP (28x28 mm) - same 208-PQFP (28x28 mm) - same 208-PQFP (28x28 mm) - same 208-PQFP (28x28 mm) - same
Brand Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel)
Family / Series FLEX 10K (B-series) FLEX 10K (B-series) FLEX 10K (E-series) FLEX 10K (E-series) FLEX 10K (B-series) FLEX 10K (E-series)
Speed Grade -2 -1 (slower) -2 (same) -1 (slower) -3 (faster) -3 (faster)
Pin-Compatible Drop-In Reference Yes (same footprint, slower) Yes (official E-series PDN replacement) Yes (official E-series, slower) Yes (same footprint, faster) Yes (E-series, faster)
Lifecycle Status Obsolete (per Altera PDN) Obsolete Obsolete (last-time-buy per PDN) Obsolete Obsolete Obsolete
Supply Voltage (Vccint) 4.75V to 5.25V 4.75V to 5.25V 4.75V to 5.25V 4.75V to 5.25V 4.75V to 5.25V 4.75V to 5.25V
Logic Elements 4,992 4,992 4,992 (E-series equivalent) 4,992 (E-series equivalent) 4,992 4,992 (E-series equivalent)
EAB Count 12 12 12 12 12 12
Estimated Unit Price (qty 1000, as of 2026-09-11) $82 $78 (approx, slower grade) $95 (approx, E-series scarce) $90 (approx, E-series) $110 (approx, faster grade) $125 (approx, E-series faster)

Principaux différenciateurs

  • Official Altera-recommended pin-compatible E-series successor (vs EPF10K100BQC208-1)
  • Higher internal performance (faster -3 speed grade) (vs EPF10K100BQC208-1)
  • Multi-volt I/O (3.3V/5V tolerant banks) (vs EPF10K100EQC208-2)

Notes de conception

Estimated: at 5V Vccint and full I/O switching on all 148 user I/Os at 50 MHz, the EPF10K100BQC208-2 core draws approximately 250 mA. Designers should provision a 5V regulator with at least 1.5 A headroom and bulk-decouple every VCCINT/VCCIO pin with 0.1 µF ceramic plus 10 µF tantalum. Decoupling capacitors must be placed within 5 mm of each supply pin per Altera's PQFP layout guide. In-system power sequencing should bring VCCINT up before VCCIO to prevent I/O latch-up.

The 208-PQFP package has a 0.5 mm lead pitch and 28 x 28 mm body. PCB land patterns must follow IPC-7351 nominal-M (medium) density rules with 0.30 mm wide pads and 0.50 mm pitch. A continuous ground plane beneath the device is mandatory to control Vccint switching noise; split the plane only at the FPGA's I/O banks if multi-voltage is required. Thermal performance requires a copper area of at least 25 cm² on the top layer to keep θJA below 30 °C/W for the commercial-grade part.

Do not assume FLEX 10K and FLEX 10KE bitstreams are interchangeable: Quartus II projects must be recompiled against the target device library before swapping silicon. The MSEL pins must be tied correctly for the chosen configuration mode (PS, AS, or JTAG). The CONF_DONE pin requires a 10 kΩ pull-up to VCCIO. When migrating to EPF10K100E, verify I/O timing against the new datasheet because some I/O standards have altered drive strengths and tCO/tSU windows.

Route all JTAG signals (TCK, TMS, TDI, TDO, TRST) with 50 Ω controlled impedance and keep total length under 100 mm to meet IEEE 1149.1 timing. Place the configuration PROM (e.g., EPC2LC20) within 50 mm of the FPGA's DATA0/DCLK/nCONFIG/nSTATUS pins and add 100 Ω series damping resistors if the traces exceed 25 mm. For multi-FPGA chains, add 33 Ω series termination on TCK and TMS to prevent ringing at high chain counts.

Informations de conformité

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Sans plomb
Unknown
Sans halogène
Unknown
Minerais de conflit
Unknown

EPF10K100BQC208-2 is a legacy FPGA produced in the late 1990s / early 2000s. RoHS, REACH, lead-free, and halogen-free status are not consistently documented across distributors and must be verified with the specific lot from the authorized distributor (e.g., Rochester Electronics). AEC-Q100 is not applicable as no automotive-qualified variant of this commercial-grade part exists.

Données vérifiées le : 2026-09-11 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

EPF10K100BQC208-2 datasheet EPF10K100BQC208-2 price EPF10K100BQC208-2 distributor stock Altera FLEX 10K 100K gate FPGA EPF10K100B discontinued replacement EPF10K100BQC208-2 vs EPF10K100EQC208-2 208-PQFP FLEX 10K FPGA 5V FLEX 10K legacy PCI card FPGA EPF10K100BQC208-2 pinout 208 PQFP FLEX 10K Quartus II toolchain EPF10K100B JTAG configuration PROM where to buy EPF10K100BQC208-2 in stock what is the lead time for EPF10K100BQC208-2 EPF10K100B Series FLEX 10K gate array obsolete EPF10K100B drop-in replacement pin compatible

Composants & termes associés

Altera Intel EPF10K100BQC208-2 EPF10K100EQC208-2 EPF10K100BQC208-1 EPF10K100BQC208-3 FLEX 10K FLEX 10KE FPGA Field Programmable Gate Array Programmable Logic Device Logic Element Embedded Array Block EAB PQFP 208-BFQFP PQFP-208 JTAG IEEE 1149.1 boundary scan 5V supply multi-volt I/O SRAM-based configuration Quartus II MAX+PLUS II PCI Altera PDN EPC2LC20 configuration PROM drop-in replacement
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