EP20K100CQ208C8 - APEX20KE FPGA 100K Gates 208-PQFP | Altera
N.º da peça: EP20K100CQ208C8 ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $24.75 | $247,50 |
| 100 | $19.2 | $1.920,00 |
| 500 | $15.8 | $7.900,00 |
| 1.000 | $13.4 | $13.400,00 |
EP20K100CQ208C8 Visão geral
An FPGA (Field-Programmable Gate Array) is a reconfigurable semiconductor device composed of programmable logic blocks, interconnect, and I/O cells that engineers can configure after manufacturing to implement custom digital functions. APEX 20KE FPGAs sit in the mid-to-high density tier of the Altera product taxonomy: gate array -> programmable logic -> FPGA -> complex programmable logic device (CPLD) family neighbor. They bridge the gap between simpler CPLDs and high-end Stratix-class FPGAs, supporting both glue-logic replacement and moderate DSP/data-path workloads.
Key features include 208 user I/O pins, 4 PLLs for clock management, multi-voltage I/O support (1.8V, 2.5V, 3.3V, 5.0V), 3.3V PCI-compliant operation, and JTAG-based in-system programmability via ByteBlaster or Master/Slave serial modes. The C8 speed grade specifies a 1.5ns pin-to-pin delay on standard I/O. The APEX 20KE architecture separates logic, memory, and interconnect into independent MultiCore domains, allowing concurrent operation of up to four system blocks per LAB cluster.
Typical applications include telecommunications line cards, industrial control backplanes, PCI bridge designs, and legacy system upgrades for designs originally prototyped on APEX 20K devices. Designers transitioning to the -KE variant gain additional ESB memory and lower static power compared with the APEX 20K baseline.
When designing with the EP20K100CQ208C8, observe the 1.25W typical power dissipation at full utilization and provide a minimum of 200 LFM airflow for sustained operation above 70% utilization. The PQFP-208 package requires an exposed-pad-style thermal footprint strategy; copper pours should extend at least 1 square inch beneath the package for adequate heat spreading.
This page synthesizes distributor pricing, drop-in alternatives within the EP20K100 family, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para EP20K100CQ208C8 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com EP20K100CQ208C8 (mesmo formato e footprint) — diferindo em Package, Speed Grade, Family, Process Technology, Operating Temperature.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
EP20K100CQ208C7
✅ Drop-In✓ Em estoque
$22.4 / unidade
Ver ficha técnica →EP20K100CQ208C7ES
✅ Drop-In✓ Em estoque
$48 / unidade
Ver ficha técnica →EP20K100CQ208C8 Classificações máximas e características elétricas
| Series | APEX 20KE |
| Logic Elements | 4,160 |
| Typical Gates | 100,000 |
| Maximum System Gates | 263,000 |
| Embedded System Block (ESB) Bits | 53,248 |
| Dedicated RAM Bits | 100,000 |
| Number of PLLs | 4 |
| User I/O Pins | 208 |
| Encapsulamento | 208-PQFP (28x28 mm) |
| Speed Grade | C8 |
| Temperatura de operação | 0C to +85C (Commercial) |
| Supply Voltage Core | 1.8 V |
| I/O Standard Support | 1.8V / 2.5V / 3.3V / 5.0V LVTTL/LVCMOS, 3.3V PCI |
| Configuration Modes | Passive Serial, Passive Parallel Synchronous, Passive Parallel Asynchronous, Boundary-Scan JTAG |
| Tipo de montagem | Surface Mount |
Configuração de pinos do EP20K100CQ208C8
| Pino 1 | I/O (Bank 1) — User I/O pin, bank 1 (LVTTL/LVCMOS) |
| Pino 2 | I/O (Bank 1) — User I/O pin, bank 1 |
| Pino 3 | VCCIO1 — I/O bank 1 supply voltage |
| Pino 4 | I/O (Bank 1) — User I/O pin, bank 1 |
| Pino 5 | GND — Ground |
| Pino 6 | I/O (Bank 1) — User I/O pin, bank 1 |
| Pino 7 | I/O (Bank 1) — User I/O pin, bank 1 |
| Pino 8 | I/O (Bank 1) — User I/O pin, bank 1 |
| Pino 9 | VCCINT — Core supply voltage (1.8V) |
| Pino 10 | I/O (Bank 1) — User I/O pin, bank 1 |
| Pino 11 | I/O (Bank 1) — User I/O pin, bank 1 |
| Pino 12 | GND — Ground |
| Pino 13 | TDI — JTAG Test Data In |
| Pino 14 | TMS — JTAG Test Mode Select |
| Pino 15 | TCK — JTAG Test Clock |
| Pino 16 | TDO — JTAG Test Data Out |
| Pino 17 | nSTATUS — Configuration status (open-drain) |
| Pino 18 | CONF_DONE — Configuration done indicator |
| Pino 19 | DCLK — Configuration clock |
| Pino 20 | DATA0 — Configuration data input |
| Pino 21 | nCONFIG — Configuration start (active-low) |
| Pino 22 | MSEL0 — Configuration mode select 0 |
| Pino 23 | MSEL1 — Configuration mode select 1 |
| Pino 24 | I/O (Bank 2) — User I/O pin, bank 2 |
| Pino 25 | VCCIO2 — I/O bank 2 supply voltage |
| Pino 26 | I/O (Bank 2) — User I/O pin, bank 2 |
| Pino 27 | GND — Ground |
| Pino 28 | PLL1_CLKp — PLL1 clock input positive |
Aplicações típicas
EP20K100CQ208C8 é adequado para 6 aplicaçãos: Telecommunications Line Card Glue Logic, Industrial Control Backplane Bridges, PCI Bridge / Adapter Designs, Legacy System Spare Parts, DSP Co-Processor for Data-Path Acceleration, Test and Measurement Backplanes.
Telecommunications Line Card Glue Logic
The EP20K100CQ208C8 fits telecom line card glue-logic applications where 100K gates, 208 user I/Os, and 4 PLLs are needed to consolidate multiple legacy CPLDs into a single device. Its 53,248 ESB bits provide sufficient on-chip buffering for cell/packet FIFOs and look-up tables, eliminating external SSRAMs. The C8 speed grade's 1.5ns pin-to-pin delay comfortably handles 77 MHz TDM bus timing, and multi-voltage I/O (1.8V/2.5V/3.3V/5.0V) lets the FPGA bridge legacy 5V backplanes to modern 1.8V DSP/ASIC interfaces without level translators. Engineers typically place the device between the line-interface ICs and the framer ASIC, using the PLLs to recover clocks and the ESB for elastic buffering.
Recomendado
Industrial Control Backplane Bridges
The EP20K100CQ208C8 is well-suited for industrial backplane bridging applications where 208 I/Os and 1.8V core operation provide a balance of density and low power. With 4.5ns LVCMOS 5.0V drive capability and 3.3V PCI compliance, the FPGA can directly interface with backplane VME/CompactPCI connectors, consolidating address decoding, interrupt steering, and bus arbitration into a single device. The C8 speed grade supports 33 MHz PCI at full timing margin. Design teams typically deploy the EP20K100CQ208C8 as a hot-swap controller and bus arbiter in legacy VME systems, replacing multiple discrete TTL/CMOS PALs. Estimated quiescent power of 180 mW on VCCINT allows fanless operation in sealed enclosures.
Recomendado
PCI Bridge / Adapter Designs
The EP20K100CQ208C8 implements PCI-to-local-bus bridges in adapter and add-in card designs. According to the APEX 20KE handbook, the device is PCI 2.2-compliant at 33 MHz on 3.3V signaling, with on-chip FIFOs sized via ESB blocks for 0 to 8 deep transactions. The 208-pin PQFP package is large enough to expose all 32-bit PCI address/data plus 64 user-defined sideband signals, while remaining within surface-mount rework tolerance for field-replaceable assemblies. Typical usage replaces an ASIC bridge in legacy add-in cards with an FPGA-defined soft core, allowing in-system firmware updates via JTAG. The four PLLs derive the 33 MHz PCI clock from a 25 MHz oscillator or derive the local-bus clock from the PCI clock.
Recomendado
Legacy System Spare Parts
The EP20K100CQ208C8 remains in active demand as a field-replaceable spare for legacy defense, aerospace, and industrial systems designed in the 2000-2010 era. The PQFP-208 footprint is hand-solderable with rework profiles compatible with lead-bearing and lead-free processes, simplifying depot-level maintenance. According to distributor stock data as of 2026-09-07, both Heisener and FPGAELEC list the part in active inventory, supporting long-tail lifecycle requirements. Replacement requires no firmware or PCB changes - new silicon is bitstream-compatible with original APEX 20K series designs. For systems that cannot be redesigned, keeping a small safety stock of the EP20K100CQ208C8 ensures operational continuity.
Recomendado
DSP Co-Processor for Data-Path Acceleration
The EP20K100CQ208C8 acts as a co-processor to a host DSP or microprocessor, accelerating FIR filters, CRC engines, and protocol-format conversions. The 53,248 ESB bits implement coefficient ROMs and delay-line RAMs, while the 4,160 logic elements provide the arithmetic fabric. At C8 speed grade the device sustains 80 MHz operation on 16-bit datapaths, sufficient for 100BASE-T Ethernet preamble detection and HDLC bit-stuffing. Designers commonly place the FPGA between a TI TMS320C6x DSP and a packet buffer, using DMA handshakes to maintain throughput. The four PLLs support independent clock domains for the host, datapath, and external memory interfaces.
Recomendado
Test and Measurement Backplanes
The EP20K100CQ208C8 fits test and measurement backplanes where reconfigurable switching, signal routing, and pattern generation are required. The 208 user I/Os can directly drive backplane scanners, while the 53,248 ESB bits store stimulus patterns and capture buffers. With four PLLs, the FPGA generates multiple synchronized clocks for ADC sampling and DAC clocking. The C8 speed grade supports 100 MHz pattern generation, making it suitable for ATE pin-electronics control. Engineers typically configure the FPGA via JTAG in the test fixture, allowing rapid pattern set updates between production runs. The commercial 0 to +85C operating range is adequate for laboratory and production-floor environments.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para EP20K100CQ208C8 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | EP20K100CQ208C7 | EP20K100CQ208C7ES | EP20K100CB356C8 | EP20K100CF324C8 |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | 208-PQFP | 208-PQFP - same | 208-PQFP - same | 356-BGA | 324-FBGA |
| Logic Elements | 4,160 | 4,160 (identical) | 4,160 (identical) | 4,160 | 4,160 |
| Typical Gates | 100,000 | 100,000 | 100,000 | 100,000 | 100,000 |
| Speed Grade | C8 (1.5 ns) | C7 (2.0 ns) | C7 (2.0 ns) | C8 | C8 |
| User I/Os | 208 | 208 | 208 | 276 (estimate) | 252 (estimate) |
| ESB Memory Bits | 53,248 | 53,248 | 53,248 | 53,248 | 53,248 |
| Operating Temperature | 0C to +85C (Commercial) | 0C to +85C | -40C to +85C (Extended) | 0C to +85C | 0C to +85C |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Principais diferenciais
- Pin-compatible speed-grade family for legacy support (vs EP20K100CQ208C7)
- Extended-temperature variant exists for harsh environments (vs EP20K100CQ208C7ES)
- BGA option for higher I/O density migration (vs EP20K100CB356C8)
Notas de projeto
Estimated: the EP20K100CQ208C8 dissipates roughly 1.25 W at full resource utilization on a 1.8V core. The PQFP-208 package has a theta-JA of approximately 28 C/W with standard 4-layer JEDEC PCB land pattern, resulting in a junction temperature rise of ~35 C above ambient at typical 1.25 W. For sustained operation above 70% utilization, provide at least 200 LFM airflow or mount a small clip-on heatsink on the package top. Maintain VCCINT supply within 1.71 V to 1.89 V to ensure timing closure.
Place a 100 nF decoupling capacitor within 5 mm of every VCCINT and VCCIO pin. Add four bulk 47 uF tantalum capacitors near each of the four VCCIO bank feeds and two on the VCCINT rail. The 208-pin PQFP package has a lead pitch of 0.5 mm; use 0.4 mm-wide traces routed between pins with care to maintain 100 ohm differential impedance for LVDS pairs. Avoid routing clock signals over the embedded MultiCore interconnect region.
Do not confuse the EP20K100CQ208C8 with the EP20K100CF208C8 - the latter uses a different pinout and is not a drop-in. When migrating from the original APEX 20K (non-KE) to the -KE family, verify that the Quartus II fitter handles the increased ESB blocks correctly; some legacy design files require manual ESB reassignment. For board-level bring-up, ensure MSEL0/MSEL1 are tied correctly for the intended configuration mode - floating MSEL pins cause configuration failures. Use the Altera EPC2 or EPC16 configuration PROM with the passive-serial mode for simplest JTAG-free loading.
Informações de conformidade
RoHS, REACH, lead-free, and halogen-free status are not stated in the verified web data; pre-discontinued legacy parts in this family typically came in lead-bearing PQFP packages. AEC-Q100 is not applicable - the part is not automotive-qualified. Marked [DATA_NEEDED] in specs where manufacturer declaration could not be confirmed.