EPF8820AQC208-2N - 8K Gates FLEX 8000 FPGA | Altera | 5V
MPN: EPF8820AQC208-2N ✗ Cuối đờiEPF8820AQC208-2N Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho EPF8820AQC208-2N — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPF8820AQC208-2N (cùng hình factor và footprint) — khác nhau ở Configuration Method, Operating Temperature, Process Technology, Usable Gates, Package.
EPF8820AQC208-2
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Xem tài liệu →EPF8820AQC208-4
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Xem tài liệu →EPF8636AQC208-3
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Xem tài liệu →EPF8636AQC208-4N
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Xem tài liệu →EPF8636AQC208-4
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Xem tài liệu →EPF8820AQC208-2N Tỷ lệ tối đa & tính chất điện
| Family | FLEX 8000 |
| Logic Elements | 672 |
| Usable Gates | 8,000 |
| User I/O Pins | 152 |
| Dedicated Inputs | 4 |
| Process Technology | 0.42 µm CMOS |
| Điện áp cung cấp | 5 V |
| I/O Standard Support | 3.3 V / 5 V (multiVolt) |
| Maximum Frequency | 125 MHz |
| Propagation Delay | 5 ns |
| Hộp | 208-pin PQFP (FQFP) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | 0 °C to +70 °C (Commercial) |
| Configuration Method | SRAM (external EPROM/EPC device) |
| Logic Family | CMOS |
Cấu hình chân EPF8820AQC208-2N
| Chân 1 | I/O — User I/O pin (bank 1) |
| Chân 2 | I/O — User I/O pin (bank 1) |
| Chân 3 | I/O — User I/O pin (bank 1) |
| Chân 4 | I/O — User I/O pin (bank 1) |
| Chân 5 | VCCIO — I/O supply voltage |
| Chân 6 | GND — Ground |
| Chân 7 | TDI — JTAG Test Data In |
| Chân 8 | TCK — JTAG Test Clock |
| Chân 9 | TMS — JTAG Test Mode Select |
| Chân 10 | nSTATUS — Configuration status |
| Chân 11 | nCONFIG — Configuration control (active low) |
| Chân 12 | CONFIG_DONE — Configuration complete |
| Chân 13 | DCLK — Configuration clock |
| Chân 14 | DATA0 — Configuration data input |
| Chân 15 | VCCINT — Core supply voltage 5 V |
| Chân 16 | GND — Ground |
| Chân 17 | CLK0 — Dedicated clock input |
| Chân 18 | CLK1 — Dedicated clock input |
| Chân 19 | CLK2 — Dedicated clock input |
| Chân 20 | I/O — User I/O pin |
| Chân 21 | I/O — User I/O pin |
| Chân 22 | I/O — User I/O pin |
| Chân 23 | I/O — User I/O pin |
| Chân 24 | I/O — User I/O pin |
| Chân 25 | I/O — User I/O pin |
| Chân 26 | I/O — User I/O pin |
| Chân 27 | I/O — User I/O pin |
| Chân 28 | I/O — User I/O pin |
| Chân 29 | I/O — User I/O pin |
| Chân 30 | I/O — User I/O pin |
| Chân 31 | I/O — User I/O pin |
| Chân 32 | I/O — User I/O pin |
| Chân 33 | I/O — User I/O pin |
| Chân 34 | I/O — User I/O pin |
| Chân 35 | I/O — User I/O pin |
| Chân 36 | I/O — User I/O pin |
| Chân 37 | I/O — User I/O pin |
| Chân 38 | I/O — User I/O pin |
| Chân 39 | I/O — User I/O pin |
| Chân 40 | I/O — User I/O pin |
| Chân 41 | I/O — User I/O pin |
| Chân 42 | I/O — User I/O pin |
| Chân 43 | I/O — User I/O pin |
| Chân 44 | I/O — User I/O pin |
| Chân 45 | I/O — User I/O pin |
| Chân 46 | I/O — User I/O pin |
| Chân 47 | I/O — User I/O pin |
| Chân 48 | I/O — User I/O pin |
| Chân 49 | I/O — User I/O pin |
| Chân 50 | I/O — User I/O pin |
| Chân 51 | I/O — User I/O pin |
| Chân 52 | I/O — User I/O pin |
| Chân 53 | VCCIO — I/O supply voltage |
| Chân 54 | GND — Ground |
| Chân 55 | I/O — User I/O pin (bank 2) |
| Chân 56 | I/O — User I/O pin (bank 2) |
| Chân 57 | I/O — User I/O pin (bank 2) |
| Chân 58 | I/O — User I/O pin (bank 2) |
| Chân 59 | I/O — User I/O pin (bank 2) |
| Chân 60 | I/O — User I/O pin (bank 2) |
| Chân 61 | I/O — User I/O pin (bank 2) |
| Chân 62 | I/O — User I/O pin (bank 2) |
| Chân 63 | I/O — User I/O pin (bank 2) |
| Chân 64 | I/O — User I/O pin (bank 2) |
| Chân 65 | I/O — User I/O pin (bank 2) |
| Chân 66 | I/O — User I/O pin (bank 2) |
| Chân 67 | I/O — User I/O pin (bank 2) |
| Chân 68 | I/O — User I/O pin (bank 2) |
| Chân 69 | I/O — User I/O pin (bank 2) |
| Chân 70 | I/O — User I/O pin (bank 2) |
| Chân 71 | I/O — User I/O pin (bank 2) |
| Chân 72 | I/O — User I/O pin (bank 2) |
| Chân 73 | I/O — User I/O pin (bank 2) |
| Chân 74 | I/O — User I/O pin (bank 2) |
| Chân 75 | I/O — User I/O pin (bank 2) |
| Chân 76 | I/O — User I/O pin (bank 2) |
| Chân 77 | I/O — User I/O pin (bank 2) |
| Chân 78 | I/O — User I/O pin (bank 2) |
| Chân 79 | I/O — User I/O pin (bank 2) |
| Chân 80 | I/O — User I/O pin (bank 2) |
| Chân 81 | I/O — User I/O pin (bank 2) |
| Chân 82 | I/O — User I/O pin (bank 2) |
| Chân 83 | I/O — User I/O pin (bank 2) |
| Chân 84 | I/O — User I/O pin (bank 2) |
| Chân 85 | I/O — User I/O pin (bank 2) |
| Chân 86 | I/O — User I/O pin (bank 2) |
| Chân 87 | I/O — User I/O pin (bank 2) |
| Chân 88 | I/O — User I/O pin (bank 2) |
| Chân 89 | I/O — User I/O pin (bank 2) |
| Chân 90 | I/O — User I/O pin (bank 2) |
| Chân 91 | I/O — User I/O pin (bank 2) |
| Chân 92 | I/O — User I/O pin (bank 2) |
| Chân 93 | I/O — User I/O pin (bank 2) |
| Chân 94 | I/O — User I/O pin (bank 2) |
| Chân 95 | I/O — User I/O pin (bank 2) |
| Chân 96 | I/O — User I/O pin (bank 2) |
| Chân 97 | I/O — User I/O pin (bank 2) |
| Chân 98 | I/O — User I/O pin (bank 2) |
| Chân 99 | I/O — User I/O pin (bank 2) |
| Chân 100 | I/O — User I/O pin (bank 2) |
| Chân 101 | I/O — User I/O pin (bank 3) |
| Chân 102 | I/O — User I/O pin (bank 3) |
| Chân 103 | I/O — User I/O pin (bank 3) |
| Chân 104 | I/O — User I/O pin (bank 3) |
| Chân 105 | I/O — User I/O pin (bank 3) |
| Chân 106 | I/O — User I/O pin (bank 3) |
| Chân 107 | I/O — User I/O pin (bank 3) |
| Chân 108 | I/O — User I/O pin (bank 3) |
| Chân 109 | I/O — User I/O pin (bank 3) |
| Chân 110 | I/O — User I/O pin (bank 3) |
| Chân 111 | I/O — User I/O pin (bank 3) |
| Chân 112 | I/O — User I/O pin (bank 3) |
| Chân 113 | I/O — User I/O pin (bank 3) |
| Chân 114 | I/O — User I/O pin (bank 3) |
| Chân 115 | I/O — User I/O pin (bank 3) |
| Chân 116 | I/O — User I/O pin (bank 3) |
| Chân 117 | I/O — User I/O pin (bank 3) |
| Chân 118 | I/O — User I/O pin (bank 3) |
| Chân 119 | I/O — User I/O pin (bank 3) |
| Chân 120 | I/O — User I/O pin (bank 3) |
| Chân 121 | I/O — User I/O pin (bank 3) |
| Chân 122 | I/O — User I/O pin (bank 3) |
| Chân 123 | I/O — User I/O pin (bank 3) |
| Chân 124 | I/O — User I/O pin (bank 3) |
| Chân 125 | I/O — User I/O pin (bank 3) |
| Chân 126 | I/O — User I/O pin (bank 3) |
| Chân 127 | I/O — User I/O pin (bank 3) |
| Chân 128 | I/O — User I/O pin (bank 3) |
| Chân 129 | I/O — User I/O pin (bank 3) |
| Chân 130 | I/O — User I/O pin (bank 3) |
| Chân 131 | I/O — User I/O pin (bank 3) |
| Chân 132 | I/O — User I/O pin (bank 3) |
| Chân 133 | I/O — User I/O pin (bank 3) |
| Chân 134 | I/O — User I/O pin (bank 3) |
| Chân 135 | I/O — User I/O pin (bank 3) |
| Chân 136 | I/O — User I/O pin (bank 3) |
| Chân 137 | I/O — User I/O pin (bank 3) |
| Chân 138 | I/O — User I/O pin (bank 3) |
| Chân 139 | I/O — User I/O pin (bank 3) |
| Chân 140 | I/O — User I/O pin (bank 3) |
| Chân 141 | I/O — User I/O pin (bank 3) |
| Chân 142 | I/O — User I/O pin (bank 3) |
| Chân 143 | I/O — User I/O pin (bank 3) |
| Chân 144 | I/O — User I/O pin (bank 3) |
| Chân 145 | I/O — User I/O pin (bank 3) |
| Chân 146 | I/O — User I/O pin (bank 3) |
| Chân 147 | I/O — User I/O pin (bank 3) |
| Chân 148 | I/O — User I/O pin (bank 3) |
| Chân 149 | I/O — User I/O pin (bank 3) |
| Chân 150 | I/O — User I/O pin (bank 3) |
| Chân 151 | I/O — User I/O pin (bank 3) |
| Chân 152 | I/O — User I/O pin (bank 3) |
| Chân 153 | VCCINT — Core supply voltage 5 V |
| Chân 154 | GND — Ground |
| Chân 155 | I/O — User I/O pin (bank 4) |
| Chân 156 | I/O — User I/O pin (bank 4) |
| Chân 157 | I/O — User I/O pin (bank 4) |
| Chân 158 | I/O — User I/O pin (bank 4) |
| Chân 159 | I/O — User I/O pin (bank 4) |
| Chân 160 | I/O — User I/O pin (bank 4) |
| Chân 161 | I/O — User I/O pin (bank 4) |
| Chân 162 | I/O — User I/O pin (bank 4) |
| Chân 163 | I/O — User I/O pin (bank 4) |
| Chân 164 | I/O — User I/O pin (bank 4) |
| Chân 165 | I/O — User I/O pin (bank 4) |
| Chân 166 | I/O — User I/O pin (bank 4) |
| Chân 167 | I/O — User I/O pin (bank 4) |
| Chân 168 | I/O — User I/O pin (bank 4) |
| Chân 169 | I/O — User I/O pin (bank 4) |
| Chân 170 | I/O — User I/O pin (bank 4) |
| Chân 171 | I/O — User I/O pin (bank 4) |
| Chân 172 | I/O — User I/O pin (bank 4) |
| Chân 173 | I/O — User I/O pin (bank 4) |
| Chân 174 | I/O — User I/O pin (bank 4) |
| Chân 175 | I/O — User I/O pin (bank 4) |
| Chân 176 | I/O — User I/O pin (bank 4) |
| Chân 177 | I/O — User I/O pin (bank 4) |
| Chân 178 | I/O — User I/O pin (bank 4) |
| Chân 179 | I/O — User I/O pin (bank 4) |
| Chân 180 | I/O — User I/O pin (bank 4) |
| Chân 181 | I/O — User I/O pin (bank 4) |
| Chân 182 | I/O — User I/O pin (bank 4) |
| Chân 183 | I/O — User I/O pin (bank 4) |
| Chân 184 | I/O — User I/O pin (bank 4) |
| Chân 185 | I/O — User I/O pin (bank 4) |
| Chân 186 | I/O — User I/O pin (bank 4) |
| Chân 187 | I/O — User I/O pin (bank 4) |
| Chân 188 | I/O — User I/O pin (bank 4) |
| Chân 189 | I/O — User I/O pin (bank 4) |
| Chân 190 | I/O — User I/O pin (bank 4) |
| Chân 191 | I/O — User I/O pin (bank 4) |
| Chân 192 | I/O — User I/O pin (bank 4) |
| Chân 193 | I/O — User I/O pin (bank 4) |
| Chân 194 | I/O — User I/O pin (bank 4) |
| Chân 195 | I/O — User I/O pin (bank 4) |
| Chân 196 | I/O — User I/O pin (bank 4) |
| Chân 197 | I/O — User I/O pin (bank 4) |
| Chân 198 | I/O — User I/O pin (bank 4) |
| Chân 199 | I/O — User I/O pin (bank 4) |
| Chân 200 | I/O — User I/O pin (bank 4) |
| Chân 201 | I/O — User I/O pin (bank 4) |
| Chân 202 | I/O — User I/O pin (bank 4) |
| Chân 203 | I/O — User I/O pin (bank 4) |
| Chân 204 | I/O — User I/O pin (bank 4) |
| Chân 205 | I/O — User I/O pin (bank 4) |
| Chân 206 | I/O — User I/O pin (bank 4) |
| Chân 207 | TDO — JTAG Test Data Out |
| Chân 208 | VCCIO — I/O supply voltage |
Ứng dụng tiêu biểu
EPF8820AQC208-2N phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPF8820AQC208-2N — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Lead-free / Pb-free assembly compliance (vsEPF8820AQC208-2)
- Slower speed grade (-2) offers wider timing margin (vsEPF8820AQC208-3)
- Highest usable-gate count in the FLEX 8000 208-PQFP family (vsEPF8636AQC208-3)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.