EP20K400GC655-2N - APEX 20KC FPGA 400K Gates | Intel/Altera
Référence : EP20K400GC655-2N ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $180 | $180,00 |
| 10 | $165 | $1 650,00 |
| 100 | $148 | $14 800,00 |
| 500 | $135 | $67 500,00 |
| 1 000 | $127.5 | $127 500,00 |
EP20K400GC655-2N Présentation
An FPGA (Field-Programmable Gate Array) is a semiconductor integrated circuit containing an array of configurable logic blocks (CLBs), embedded memory, I/O elements, and routing resources that the user programs after manufacture. FPGAs occupy a specific tier in the programmable logic hierarchy: they sit between fixed-function ASICs (high NRE, high volume) and CPLDs (smaller, simpler, non-volatile), offering the best balance of high logic density, parallel processing, hardware reconfigurability, and low-to-medium NRE cost for prototyping and low-volume production.
Key specifications include 212,992 bits of total on-chip RAM, 16,640 logic elements, support for MultiCore architecture combining LUT logic with product-term logic and embedded memory, and a maximum operating frequency of 200 MHz. The device supports LVDS I/O and is built on a 0.22 µm CMOS process with 2.5V I/O tolerance. The 655-pin CPGA package provides high pin density for high-performance designs and is rated for industrial temperature ranges.
The APEX 20KC architecture integrates lookup-table (LUT) logic for register-intensive functions with product-term logic for wide combinational paths, all interconnected through a MultiCore interconnect fabric. This hybrid architecture allows efficient implementation of datapath, control, and memory functions in a single device. The PLD is supported by Altera/Intel Quartus design tools and can be configured via JTAG or passive serial configuration schemes.
Typical applications include telecom line cards, high-speed data acquisition, industrial control and instrumentation, military/aerospace signal processing, and ASIC prototyping. The 655-pin CPGA and 200 MHz performance make it well suited for backplane interfaces, bus controllers, and custom coprocessor designs where high logic density and ample I/O count are required.
When designing with the EP20K400GC655-2N, ensure the 1.8V core supply is decoupled with bulk and high-frequency ceramic capacitors placed close to the VCCINT pins. JTAG chain integrity and proper configuration mode selection are critical for first-time bring-up; use the Altera ByteBlaster or compatible USB-Blaster programmer for in-system programming.
This page synthesizes authorized distributor pricing, same-package drop-in alternatives from the APEX 20K/20KE family, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluating legacy Altera silicon make informed lifecycle and substitution decisions.
Alternatives de remplacement direct pour EP20K400GC655-2N — 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 EP20K400GC655-2N (même facteur de forme et même empreinte) — différant par Family, Mounting Type, Series, Package, Package Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EP20K400GC655-1N
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
EP20K400GC655-1
✅ Remplacement direct✓ En stock
$135 / unité
Voir la fiche technique →EP20K400GC655-1V
✅ Remplacement direct✓ En stock
$555 / unité
Voir la fiche technique →EP20K400GC655-1X
✅ Remplacement direct✓ En stock
$193.04 / unité
Voir la fiche technique →EP20K400GC655-2
✅ Remplacement direct✓ En stock
$80 / unité
Voir la fiche technique →EP20K400GC655-2N Valeurs maximales et caractéristiques électriques
| Family | APEX 20KC |
| Number of Logic Elements | 16640 |
| Number of Logic Cells | 16640 |
| Total System Gates | 400000 |
| Total RAM Bits | 212992 |
| Core Voltage (VCCINT) | 1.71 V to 1.89 V |
| I/O Voltage (VCCIO) | 2.5 V (LVDS-capable) |
| Process Technology | 0.22 µm CMOS |
| Maximum Operating Frequency | 200 MHz |
| Propagation Delay (Tpd) | 3.1 ns |
| Boîtier / Format | 655-BCPGA (Ceramic Pin Grid Array) |
| Supplier Device Package | 655-CPGA, 62.48 x 62.48 mm |
| Température de fonctionnement | Industrial (per Altera part-number -N suffix) |
| Type de montage | Through-Hole (CPGA, socket-compatible) |
| LVDS Support | Yes |
| Architecture | MultiCore (LUT + product-term + embedded memory) |
| Configuration Method | JTAG / Passive Serial |
Configuration des broches de EP20K400GC655-2N
| Broche 1 | I/O — User I/O pin (bank varies; see APEX 20K datasheet pin table for exact bank and signal) |
| Broche 2 | I/O — User I/O pin |
| Broche 3 | I/O — User I/O pin |
| Broche 4 | I/O — User I/O pin |
| Broche 5 | VCCINT — Core supply (1.8 V nominal) |
| Broche 6 | GND — Ground |
| Broche 7 | I/O — User I/O pin |
| 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 | VCCIO — I/O supply (2.5 V nominal) |
| Broche 12 | GND — Ground |
| 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 | I/O — User I/O pin |
| Broche 17 | TCK — JTAG test clock input |
| Broche 18 | TMS — JTAG test mode select input |
| Broche 19 | TDI — JTAG test data input |
| Broche 20 | TDO — JTAG test data output |
Applications typiques
EP20K400GC655-2N convient pour 6 applications: Telecom Line Card Interface Logic, ASIC Prototyping and Emulation, High-Speed Data Acquisition, Industrial Motion Control, Military/Aerospace Signal Processing, Legacy Telecom Backplane Bridge.
Telecom Line Card Interface Logic
The EP20K400GC655-2N fits telecom line-card applications because it integrates 16,640 logic elements and 212,992 bits of embedded RAM into a single device, replacing multiple discrete CPLDs and glue logic. With 200 MHz fMAX on the -2 speed grade, the part easily handles TDM bus framing, HDLC controllers, and ATM cell-processing datapaths. Designers typically instantiate LVDS receivers to connect to backplane SERDES framer chips. The 655-pin CPGA exposes enough user I/O for parallel bus widths up to 32 bits plus extensive control signaling, eliminating the need for external bus drivers.
Recommandé
ASIC Prototyping and Emulation
The 400K system-gate capacity and MultiCore architecture make the EP20K400GC655-2N a workhorse for ASIC prototyping and logic emulation in design verification flows. The 16,640 logic elements with embedded memory blocks allow faithful mapping of large register-transfer-level (RTL) designs without partition headaches. Quartus design software supports incremental compilation, which speeds iterative regression cycles during ASIC sign-off. The 655-pin CPGA exposes enough package I/O to map multi-bus ASIC pinouts, including 64-bit datapaths and parallel control interfaces common in networking ASICs.
Recommandé
High-Speed Data Acquisition
The EP20K400GC655-2N's 212,992 embedded memory bits and 200 MHz logic frequency suit it to high-speed data-acquisition front-ends, where the FPGA performs real-time filtering, FFT pre-processing, and channel multiplexing. Designers pair it with 14- to 16-bit ADCs on the 2.5 V LVDS-capable I/O banks and use the embedded RAM as line buffers and FIR tap delay lines. The MultiCore architecture integrates LUT logic with product-term blocks, accelerating both arithmetic-heavy DSP paths and wide combinational decoding common in test instrumentation.
Recommandé
Industrial Motion Control
In industrial motion control and CNC machinery, the EP20K400GC655-2N implements multi-axis servo loops, encoder quadrature decoding, and PWM generation with deterministic latency. The 200 MHz logic frequency supports high-resolution encoder interfaces (up to 50 MHz line frequency with x4 decimation) and simultaneous PID control loops for up to 8 axes. The 655-pin CPGA's high pin count provides ample GPIO for limit-switch inputs, opto-isolated enable signals, and stepper/driver outputs. The industrial temperature grade (N suffix) and ceramic package withstand factory-floor thermal and vibration stress.
Recommandé
Military/Aerospace Signal Processing
The ceramic CPGA package and extended temperature variants in the APEX 20K family make the EP20K400GC655-2N a candidate for legacy military and aerospace signal-processing applications where solder-joint reliability under thermal cycling is critical. The device's 16,640 logic elements support radar timing, beam-steering state machines, and pre-DSP correlation pipelines. 200 MHz fMAX accommodates intermediate-frequency (IF) sampling and matched-filter implementations. Designers should pair it with radiation-tolerant SRAM and follow Altera's derating guidelines for high-altitude operation.
Recommandé
Legacy Telecom Backplane Bridge
Bridging between legacy telecom backplanes (H.110 CT Bus, MVIP, SCbus) and newer TDM-over-Ethernet or PCIe fabrics is a classic use case for the EP20K400GC655-2N. The FPGA performs clock-domain crossing, frame-format conversion, and timeslot grooming across multiple E1/T1 streams with deterministic latency. The 212,992-bit embedded RAM acts as elastic buffers for clock-rate adaptation. With LVDS-capable 2.5 V I/O banks, the part connects directly to legacy framers without external glue logic, while its 655-pin CPGA exposes enough I/O for 8+ E1/T1 links plus management interfaces.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EP20K400GC655-2N — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | EP20K400GC655-1N | EP20K400GC655-2 | EP20K400GC655-1 | EP20K400GC655-1V | EP20K400GC655-1X |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | 655-CPGA (62.48x62.48 mm) | 655-CPGA (62.48x62.48 mm) | 655-CPGA (62.48x62.48 mm) | 655-CPGA (62.48x62.48 mm) | 655-CPGA (62.48x62.48 mm) | 655-CPGA (62.48x62.48 mm) |
| Speed Grade | -2 (200 MHz fMAX) | -1 (slower) | -2 (200 MHz fMAX) | -1 (slower) | -1 (slower) | -1 (slower) |
| Temperature Grade | Industrial (N suffix) | Industrial (N suffix) | Commercial | Commercial | Extended (V suffix) | Military/Extended (X suffix) |
| Total System Gates | 400000 | 400000 | 400000 | 400000 | 400000 | 400000 |
| Logic Elements | 16640 | 16640 | 16640 | 16640 | 16640 | 16640 |
| Total RAM Bits | 212992 | 212992 | 212992 | 212992 | 212992 | 212992 |
| Core Voltage | 1.71 V to 1.89 V (1.8 V) | 1.71 V to 1.89 V | 1.71 V to 1.89 V | 1.71 V to 1.89 V | 1.71 V to 1.89 V | 1.71 V to 1.89 V |
| Process Technology | 0.22 µm | 0.22 µm | 0.22 µm | 0.22 µm | 0.22 µm | 0.22 µm |
Principaux différenciateurs
- True drop-in silicon compatibility within same-package APEX 20K family (vs EP20K400GC655-1N)
- Industrial temperature grade on the same CPGA package (vs EP20K400GC655-2 (commercial))
- Highest 200 MHz fMAX in the APEX 20K CPGA family (vs EP20K400GC655-1V (-1 speed grade, extended temp))
Notes de conception
The 1.8 V core supply must be decoupled with a 100 µF bulk tantalum plus 0.1 µF and 0.01 µF ceramic capacitors placed within 5 mm of each VCCINT pin group; the 2.5 V VCCIO rail requires its own decoupling network sized for the expected I/O toggle rate. APEX 20KC core current scales with logic utilization and clock frequency - at 100% utilization and 200 MHz, expect 800 mA to 1.2 A on VCCINT. Sequence VCCINT before VCCIO during power-up to avoid I/O latchup.
The 655-pin CPGA's ceramic body conducts heat well, but in a socketed configuration there is no direct PCB thermal path. For full 200 MHz operation with high toggle rates, evaluate junction temperature via the device's thermal resistance specification; pair the device with a heatsink-attached socket or thermal pad if junction temperature approaches the industrial limit. Forced airflow is recommended in enclosed chassis.
The 655-pin CPGA requires a PGA socket (e.g., AMP/Tyco 655-pin PGA socket) mounted on a board with 1.27 mm or 2.54 mm grid plated-through holes. Maintain a continuous ground plane under the device and route high-speed signals on inner layers with controlled impedance. JTAG chain integrity requires buffered TCK near the device; keep TMS/TDI pull-ups within 10 mm of the package pins per IEEE 1149.1 boundary-scan practice.
Do not confuse the APEX 20K (2.5 V core) with the APEX 20KC (1.8 V core) - they are NOT voltage-compatible despite sharing the same package family. When migrating from APEX 20K to APEX 20KC, verify the core supply and re-run static timing analysis at the lower VCCINT. Also confirm the configuration mode (Passive Serial vs JTAG) and the ByteBlaster/USB-Blaster programmer compatibility before swapping devices on existing boards.
Informations de conformité
RoHS/REACH status not explicitly stated in the provided verified web data for this obsolete Altera part; CPGA ceramic packages historically contain lead-bearing solder columns. AEC-Q100 not applicable (FPGA is not an automotive-qualified part category for this series).
