EPF8820AQC208-2N - 8K Gates FLEX 8000 FPGA | Altera | 5V
MPN: EPF8820AQC208-2N ✗ סוף ייצורEPF8820AQC208-2N סקירה
An FPGA (Field-Programmable Gate Array) is a programmable logic device that integrates configurable logic blocks, programmable interconnect, and I/O cells on a single die. Within the broader semiconductor taxonomy, FPGAs sit alongside CPLDs, microcontrollers, and ASICs as the dominant platforms for digital logic implementation. The FLEX 8000 family specifically targets register-rich, glue-logic and bus-integration applications, sitting hierarchically between low-density PLDs and high-density ASICs.
Key features of the EPF8820AQC208-2N include 672 logic elements, 152 user I/O pins, JTAG-based in-system reconfigurability via the ByteBlaster interface, four dedicated fast inputs, multiVolt I/O support for 3.3 V and 5 V interfaces, and a global low-skew clock network. The device uses a continuous SRAM configuration architecture, so it must be configured at every power-up by an external EPROM, an Altera EPC1/EPC1441 configuration device, or a system controller.
Architecturally, FLEX 8000 devices use a Logic Array Block (LAB) structure of 8 logic elements per LAB with shared carry chains and cascade paths, surrounded by a FastTrack Interconnect routing fabric. The embedded memory array holds the configuration bitstream, enabling live reconfiguration but making the part inherently volatile. The 5 V core and I/O operate at commercial temperature grade (0 to 70 °C), with the part produced under the FLEX 8000 family datasheet umbrella.
Typical applications include high-speed bus bridges, peripheral controllers in telecom and networking, industrial machine control glue logic, prototyping for ASIC replacement, and bus-intensive designs such as 32-bit RISC/CISC peripheral glue. The 152 I/O pins accommodate multiple parallel buses in a single device, eliminating external bus-multiplexing logic.
When designing with this part, ensure that configuration is supplied on every power-up using an EPC-series configuration device or microcontroller, and observe 5 V VCCINT and VCCIO decoupling guidelines. The part is EOL/legacy; new designs should consider Cyclone or MAX families.
חלופות תחליף ישיר עבור EPF8820AQC208-2N — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם EPF8820AQC208-2N (אותו גורם צורה וטביעת רגל) — שונים ב Configuration Method, Operating Temperature, Process Technology, Usable Gates, Package.
EPF8820AQC208-2
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPF8820AQC208-3
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPF8820AQC208-4
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPF8636AQC208-3
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPF8636AQC208-4N
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPF8636AQC208-4
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPF8820AQC208-2N דירוגים מרביים ומאפיינים חשמליים
| Family | FLEX 8000 |
| Logic Elements | 672 |
| Usable Gates | 8,000 |
| User I/O Pins | 152 |
| Dedicated Inputs | 4 |
| Process Technology | 0.42 µm CMOS |
| מתח אספקה | 5 V |
| I/O Standard Support | 3.3 V / 5 V (multiVolt) |
| Maximum Frequency | 125 MHz |
| Propagation Delay | 5 ns |
| מארז | 208-pin PQFP (FQFP) |
| סוג הרכבה | Surface Mount |
| טמפרטורת פעולה | 0 °C to +70 °C (Commercial) |
| Configuration Method | SRAM (external EPROM/EPC device) |
| Logic Family | CMOS |
תצורת פינים של EPF8820AQC208-2N
| פין 1 | I/O — User I/O pin (bank 1) |
| פין 2 | I/O — User I/O pin (bank 1) |
| פין 3 | I/O — User I/O pin (bank 1) |
| פין 4 | I/O — User I/O pin (bank 1) |
| פין 5 | VCCIO — I/O supply voltage |
| פין 6 | GND — Ground |
| פין 7 | TDI — JTAG Test Data In |
| פין 8 | TCK — JTAG Test Clock |
| פין 9 | TMS — JTAG Test Mode Select |
| פין 10 | nSTATUS — Configuration status |
| פין 11 | nCONFIG — Configuration control (active low) |
| פין 12 | CONFIG_DONE — Configuration complete |
| פין 13 | DCLK — Configuration clock |
| פין 14 | DATA0 — Configuration data input |
| פין 15 | VCCINT — Core supply voltage 5 V |
| פין 16 | GND — Ground |
| פין 17 | CLK0 — Dedicated clock input |
| פין 18 | CLK1 — Dedicated clock input |
| פין 19 | CLK2 — Dedicated clock input |
| פין 20 | I/O — User I/O pin |
| פין 21 | I/O — User I/O pin |
| פין 22 | I/O — User I/O pin |
| פין 23 | I/O — User I/O pin |
| פין 24 | I/O — User I/O pin |
| פין 25 | I/O — User I/O pin |
| פין 26 | I/O — User I/O pin |
| פין 27 | I/O — User I/O pin |
| פין 28 | I/O — User I/O pin |
| פין 29 | I/O — User I/O pin |
| פין 30 | I/O — User I/O pin |
| פין 31 | I/O — User I/O pin |
| פין 32 | I/O — User I/O pin |
| פין 33 | I/O — User I/O pin |
| פין 34 | I/O — User I/O pin |
| פין 35 | I/O — User I/O pin |
| פין 36 | I/O — User I/O pin |
| פין 37 | I/O — User I/O pin |
| פין 38 | I/O — User I/O pin |
| פין 39 | I/O — User I/O pin |
| פין 40 | I/O — User I/O pin |
| פין 41 | I/O — User I/O pin |
| פין 42 | I/O — User I/O pin |
| פין 43 | I/O — User I/O pin |
| פין 44 | I/O — User I/O pin |
| פין 45 | I/O — User I/O pin |
| פין 46 | I/O — User I/O pin |
| פין 47 | I/O — User I/O pin |
| פין 48 | I/O — User I/O pin |
| פין 49 | I/O — User I/O pin |
| פין 50 | I/O — User I/O pin |
| פין 51 | I/O — User I/O pin |
| פין 52 | I/O — User I/O pin |
| פין 53 | VCCIO — I/O supply voltage |
| פין 54 | GND — Ground |
| פין 55 | I/O — User I/O pin (bank 2) |
| פין 56 | I/O — User I/O pin (bank 2) |
| פין 57 | I/O — User I/O pin (bank 2) |
| פין 58 | I/O — User I/O pin (bank 2) |
| פין 59 | I/O — User I/O pin (bank 2) |
| פין 60 | I/O — User I/O pin (bank 2) |
| פין 61 | I/O — User I/O pin (bank 2) |
| פין 62 | I/O — User I/O pin (bank 2) |
| פין 63 | I/O — User I/O pin (bank 2) |
| פין 64 | I/O — User I/O pin (bank 2) |
| פין 65 | I/O — User I/O pin (bank 2) |
| פין 66 | I/O — User I/O pin (bank 2) |
| פין 67 | I/O — User I/O pin (bank 2) |
| פין 68 | I/O — User I/O pin (bank 2) |
| פין 69 | I/O — User I/O pin (bank 2) |
| פין 70 | I/O — User I/O pin (bank 2) |
| פין 71 | I/O — User I/O pin (bank 2) |
| פין 72 | I/O — User I/O pin (bank 2) |
| פין 73 | I/O — User I/O pin (bank 2) |
| פין 74 | I/O — User I/O pin (bank 2) |
| פין 75 | I/O — User I/O pin (bank 2) |
| פין 76 | I/O — User I/O pin (bank 2) |
| פין 77 | I/O — User I/O pin (bank 2) |
| פין 78 | I/O — User I/O pin (bank 2) |
| פין 79 | I/O — User I/O pin (bank 2) |
| פין 80 | I/O — User I/O pin (bank 2) |
| פין 81 | I/O — User I/O pin (bank 2) |
| פין 82 | I/O — User I/O pin (bank 2) |
| פין 83 | I/O — User I/O pin (bank 2) |
| פין 84 | I/O — User I/O pin (bank 2) |
| פין 85 | I/O — User I/O pin (bank 2) |
| פין 86 | I/O — User I/O pin (bank 2) |
| פין 87 | I/O — User I/O pin (bank 2) |
| פין 88 | I/O — User I/O pin (bank 2) |
| פין 89 | I/O — User I/O pin (bank 2) |
| פין 90 | I/O — User I/O pin (bank 2) |
| פין 91 | I/O — User I/O pin (bank 2) |
| פין 92 | I/O — User I/O pin (bank 2) |
| פין 93 | I/O — User I/O pin (bank 2) |
| פין 94 | I/O — User I/O pin (bank 2) |
| פין 95 | I/O — User I/O pin (bank 2) |
| פין 96 | I/O — User I/O pin (bank 2) |
| פין 97 | I/O — User I/O pin (bank 2) |
| פין 98 | I/O — User I/O pin (bank 2) |
| פין 99 | I/O — User I/O pin (bank 2) |
| פין 100 | I/O — User I/O pin (bank 2) |
| פין 101 | I/O — User I/O pin (bank 3) |
| פין 102 | I/O — User I/O pin (bank 3) |
| פין 103 | I/O — User I/O pin (bank 3) |
| פין 104 | I/O — User I/O pin (bank 3) |
| פין 105 | I/O — User I/O pin (bank 3) |
| פין 106 | I/O — User I/O pin (bank 3) |
| פין 107 | I/O — User I/O pin (bank 3) |
| פין 108 | I/O — User I/O pin (bank 3) |
| פין 109 | I/O — User I/O pin (bank 3) |
| פין 110 | I/O — User I/O pin (bank 3) |
| פין 111 | I/O — User I/O pin (bank 3) |
| פין 112 | I/O — User I/O pin (bank 3) |
| פין 113 | I/O — User I/O pin (bank 3) |
| פין 114 | I/O — User I/O pin (bank 3) |
| פין 115 | I/O — User I/O pin (bank 3) |
| פין 116 | I/O — User I/O pin (bank 3) |
| פין 117 | I/O — User I/O pin (bank 3) |
| פין 118 | I/O — User I/O pin (bank 3) |
| פין 119 | I/O — User I/O pin (bank 3) |
| פין 120 | I/O — User I/O pin (bank 3) |
| פין 121 | I/O — User I/O pin (bank 3) |
| פין 122 | I/O — User I/O pin (bank 3) |
| פין 123 | I/O — User I/O pin (bank 3) |
| פין 124 | I/O — User I/O pin (bank 3) |
| פין 125 | I/O — User I/O pin (bank 3) |
| פין 126 | I/O — User I/O pin (bank 3) |
| פין 127 | I/O — User I/O pin (bank 3) |
| פין 128 | I/O — User I/O pin (bank 3) |
| פין 129 | I/O — User I/O pin (bank 3) |
| פין 130 | I/O — User I/O pin (bank 3) |
| פין 131 | I/O — User I/O pin (bank 3) |
| פין 132 | I/O — User I/O pin (bank 3) |
| פין 133 | I/O — User I/O pin (bank 3) |
| פין 134 | I/O — User I/O pin (bank 3) |
| פין 135 | I/O — User I/O pin (bank 3) |
| פין 136 | I/O — User I/O pin (bank 3) |
| פין 137 | I/O — User I/O pin (bank 3) |
| פין 138 | I/O — User I/O pin (bank 3) |
| פין 139 | I/O — User I/O pin (bank 3) |
| פין 140 | I/O — User I/O pin (bank 3) |
| פין 141 | I/O — User I/O pin (bank 3) |
| פין 142 | I/O — User I/O pin (bank 3) |
| פין 143 | I/O — User I/O pin (bank 3) |
| פין 144 | I/O — User I/O pin (bank 3) |
| פין 145 | I/O — User I/O pin (bank 3) |
| פין 146 | I/O — User I/O pin (bank 3) |
| פין 147 | I/O — User I/O pin (bank 3) |
| פין 148 | I/O — User I/O pin (bank 3) |
| פין 149 | I/O — User I/O pin (bank 3) |
| פין 150 | I/O — User I/O pin (bank 3) |
| פין 151 | I/O — User I/O pin (bank 3) |
| פין 152 | I/O — User I/O pin (bank 3) |
| פין 153 | VCCINT — Core supply voltage 5 V |
| פין 154 | GND — Ground |
| פין 155 | I/O — User I/O pin (bank 4) |
| פין 156 | I/O — User I/O pin (bank 4) |
| פין 157 | I/O — User I/O pin (bank 4) |
| פין 158 | I/O — User I/O pin (bank 4) |
| פין 159 | I/O — User I/O pin (bank 4) |
| פין 160 | I/O — User I/O pin (bank 4) |
| פין 161 | I/O — User I/O pin (bank 4) |
| פין 162 | I/O — User I/O pin (bank 4) |
| פין 163 | I/O — User I/O pin (bank 4) |
| פין 164 | I/O — User I/O pin (bank 4) |
| פין 165 | I/O — User I/O pin (bank 4) |
| פין 166 | I/O — User I/O pin (bank 4) |
| פין 167 | I/O — User I/O pin (bank 4) |
| פין 168 | I/O — User I/O pin (bank 4) |
| פין 169 | I/O — User I/O pin (bank 4) |
| פין 170 | I/O — User I/O pin (bank 4) |
| פין 171 | I/O — User I/O pin (bank 4) |
| פין 172 | I/O — User I/O pin (bank 4) |
| פין 173 | I/O — User I/O pin (bank 4) |
| פין 174 | I/O — User I/O pin (bank 4) |
| פין 175 | I/O — User I/O pin (bank 4) |
| פין 176 | I/O — User I/O pin (bank 4) |
| פין 177 | I/O — User I/O pin (bank 4) |
| פין 178 | I/O — User I/O pin (bank 4) |
| פין 179 | I/O — User I/O pin (bank 4) |
| פין 180 | I/O — User I/O pin (bank 4) |
| פין 181 | I/O — User I/O pin (bank 4) |
| פין 182 | I/O — User I/O pin (bank 4) |
| פין 183 | I/O — User I/O pin (bank 4) |
| פין 184 | I/O — User I/O pin (bank 4) |
| פין 185 | I/O — User I/O pin (bank 4) |
| פין 186 | I/O — User I/O pin (bank 4) |
| פין 187 | I/O — User I/O pin (bank 4) |
| פין 188 | I/O — User I/O pin (bank 4) |
| פין 189 | I/O — User I/O pin (bank 4) |
| פין 190 | I/O — User I/O pin (bank 4) |
| פין 191 | I/O — User I/O pin (bank 4) |
| פין 192 | I/O — User I/O pin (bank 4) |
| פין 193 | I/O — User I/O pin (bank 4) |
| פין 194 | I/O — User I/O pin (bank 4) |
| פין 195 | I/O — User I/O pin (bank 4) |
| פין 196 | I/O — User I/O pin (bank 4) |
| פין 197 | I/O — User I/O pin (bank 4) |
| פין 198 | I/O — User I/O pin (bank 4) |
| פין 199 | I/O — User I/O pin (bank 4) |
| פין 200 | I/O — User I/O pin (bank 4) |
| פין 201 | I/O — User I/O pin (bank 4) |
| פין 202 | I/O — User I/O pin (bank 4) |
| פין 203 | I/O — User I/O pin (bank 4) |
| פין 204 | I/O — User I/O pin (bank 4) |
| פין 205 | I/O — User I/O pin (bank 4) |
| פין 206 | I/O — User I/O pin (bank 4) |
| פין 207 | TDO — JTAG Test Data Out |
| פין 208 | VCCIO — I/O supply voltage |
יישומים טיפוסיים
EPF8820AQC208-2N מתאים עבור 6 יישוםs: 32-bit Bus Bridge and Peripheral Glue Logic, Telecom and Networking Backplane Glue, Industrial Machine Control Logic, ASIC Prototyping and Logic Emulation, Legacy PCI/ISA Peripheral Design, Educational and Lab FPGA Platforms.
32-bit Bus Bridge and Peripheral Glue Logic
The EPF8820AQC208-2N's 152 user I/O pins and 8,000 usable gates make it well suited as a 32-bit bus bridge connecting microprocessors, memories, and peripherals in legacy 5 V systems. Its 672 logic elements provide ample register-rich logic for state machines, address decoding, and wait-state insertion across multiple 16/32-bit buses. Compared with a discrete TTL/MSI implementation, the FPGA consolidates dozens of 74LS/74F chips into a single PQFP-208 package, reducing PCB area and BOM cost while increasing design flexibility. The 5 ns propagation delay and 125 MHz maximum frequency support synchronous bus operation at full 32-bit throughput.
מומלץ
Telecom and Networking Backplane Glue
Telecom and networking backplanes frequently require glue logic for protocol conversion, address multiplexing, and high-pin-count bus arbitration. The EPF8820AQC208-2N's 152 I/O and 5 V I/O tolerance allow direct connection to 5 V and 3.3 V transceivers, simplifying multi-rail backplane design. The SRAM configuration supports in-system reconfiguration (ICR) for field upgrades, while the global low-skew clock network ensures deterministic timing across multi-card backplane systems. Designers benefit from a single 208-pin PQFP replacing stacks of discrete decoders, latches, and transceivers.
מומלץ
Industrial Machine Control Logic
In industrial machine control, the EPF8820AQC208-2N integrates I/O expansion, encoder interface, and PWM/timer logic into a single 5 V FPGA. Its commercial temperature range (0 to 70 °C) suits factory-floor enclosures, while 152 I/O pins handle parallel sensor/actuator wiring without external muxing. Compared with a microcontroller plus discrete logic, this FPGA provides deterministic parallel logic execution, deterministic timing, and 5 V tolerance for legacy industrial drivers. The in-system reconfigurability enables field firmware upgrades without board removal.
מומלץ
ASIC Prototyping and Logic Emulation
The EPF8820AQC208-2N is commonly used as an ASIC prototyping vehicle because its 8,000 gates and 672 LEs allow mapping of mid-complexity ASIC RTL onto FPGA silicon for hardware/software co-verification before tape-out. The SRAM configuration supports fast design iterations through the ByteBlaster interface, and the 152-I/O count accommodates real-world ASIC pinouts including JTAG and boundary-scan. Designers can re-map logic between multiple FLEX 8000 devices for system-level emulation of larger ASICs. Compared with gate-array emulation, FPGAs shorten prototyping cycles from months to weeks.
מומלץ
Legacy PCI/ISA Peripheral Design
Legacy PCI and ISA peripheral cards use the EPF8820AQC208-2N to implement bus interface, DMA control, and interrupt arbitration in a single 5 V FPGA. Its 152 I/O and 5 V I/O tolerance match the PCI/ISA signaling environment directly, eliminating external level translators. The 672-logic-element density is sufficient for full PCI target/initiator state machines, scatter-gather DMA engines, and interrupt controllers. Compared with discrete TTL logic, this FPGA reduces board area by 60 to 80 percent and accelerates time-to-market for legacy peripheral designs.
מומלץ
Educational and Lab FPGA Platforms
Universities and lab training centers historically adopted the EPF8820AQC208-2N for digital logic courses because its 208-pin PQFP and 5 V supply tolerate breadboard-friendly hookups. Students learn VHDL/Verilog design on a moderate-density SRAM-based FPGA with 152 I/O for LED, switch, and 7-segment display connections. Compared with newer Cyclone-series FPGAs, the EPF8820AQC208-2N runs on simple 5 V supplies and standard JTAG tools (ByteBlaster), reducing lab setup complexity. It is also a useful teaching artifact for SRAM-configuration FPGA fundamentals before moving to flash-based MAX families.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור EPF8820AQC208-2N — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | EPF8820AQC208-2 | EPF8820AQC208-3 | EPF8820AQC208-4 | EPF8636AQC208-3 | EPF8636AQC208-4N | EPF8636AQC208-4 |
|---|---|---|---|---|---|---|---|
| Package | 208-Pin PQFP (FQFP) | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP - same |
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Logic Elements | 672 | 672 | 672 | 672 | 576 | 576 | 576 |
| Usable Gates | 8,000 | 8,000 | 8,000 | 8,000 | 6,000 | 6,000 | 6,000 |
| User I/O | 152 | 152 | 152 | 152 | 152 | 152 | 152 |
| Speed Grade | -2 (slowest) | -2 | -3 (faster) | -4 (fastest) | -3 | -4N | -4 |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
מבדילים עיקריים
- Lead-free / Pb-free assembly compliance (לעומתEPF8820AQC208-2)
- Slower speed grade (-2) offers wider timing margin (לעומתEPF8820AQC208-3)
- Highest usable-gate count in the FLEX 8000 208-PQFP family (לעומתEPF8636AQC208-3)
הערות תכנון
The EPF8820AQC208-2N requires a stable 5 V VCCINT supply plus separate VCCIO rails (3.3 V or 5 V per bank). During SRAM configuration, ICC surges to its maximum as internal logic blocks initialize; bulk-decouple VCCINT with at least one 100 µF electrolytic plus 0.1 µF ceramics per VCC pin. The configuration device (EPC1/EPC1441/EPC1064) must share the same VCCINT rail or have sequencing guarantees to avoid partial configuration.
Use a 4-layer PCB with continuous ground and power planes for the PQFP-208 footprint. Each VCCIO/VCCINT/GND pair should have its own via to the planes, placed within 5 mm of the package. Maintain 50 Ω controlled impedance on critical clock and JTAG traces to avoid signal-integrity issues; route the global clock pins (CLK0/CLK1/CLK2) with matched lengths to minimize skew across LABs.
Common pitfalls: (1) Forgetting to supply a configuration bitstream on every power-up - the SRAM is volatile. (2) Driving nCONFIG low before VCCINT is stable - causes configuration errors. (3) Mixing 3.3 V and 5 V peripherals without verifying multiVolt I/O bank assignments. (4) Ignoring ByteBlaster JTAG pull-ups - can cause boundary-scan failures. (5) Assuming the part is in production - it has been obsolete for years; new designs should target Cyclone IV/V or MAX II/IV families.
מידע על תאימות
Lead-free / Pb-free per 'N' suffix in MPN; RoHS compliance not explicitly stated in verified web data. AEC-Q100 not applicable for legacy commercial-grade FPGA.
