EPF8820AQC208-2N - 8K Gates FLEX 8000 FPGA | Altera | 5V
料号： EPF8820AQC208-2N ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.2 | $8.20 |
| 10 | $7.45 | $74.50 |
| 100 | $6.5 | $650.00 |
| 500 | $5.8 | $2,900.00 |
| 1,000 | $5.1 | $5,100.00 |
EPF8820AQC208-2N 概述
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.
直接替换替代料： EPF8820AQC208-2N ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： EPF8820AQC208-2N （相同外形与封装尺寸） ——差异在于 Configuration Method, Operating Temperature, Process Technology, Usable Gates, Package.
快速对比工具——选择替代料号进行并排对比：
EPF8820AQC208-2
✅ 直接替换✓ 有现货
$22.8 / 个
查看数据手册 →EPF8820AQC208-3
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$18.95 / 个
查看数据手册 →EPF8820AQC208-4
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查看数据手册 →EPF8636AQC208-3
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$28 / 个
查看数据手册 →EPF8636AQC208-4N
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$10.4 / 个
查看数据手册 →EPF8636AQC208-4
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$35.33 / 个
查看数据手册 →EPF8820AQC208-2N 最大额定值与电气特性
| Family | FLEX 8000 |
| Logic Elements | 672 |
| Usable Gates | 8,000 |
| User I/O Pins | 152 |
| Dedicated Inputs | 4 |
| Process Technology | 0.42 µm CMOS |
| 电源电压 | 5 V |
| I/O Standard Support | 3.3 V / 5 V (multiVolt) |
| Maximum Frequency | 125 MHz |
| Propagation Delay | 5 ns |
| 封装 | 208-pin PQFP (FQFP) |
| 安装类型 | Surface Mount |
| 工作温度 | 0 °C to +70 °C (Commercial) |
| Configuration Method | SRAM (external EPROM/EPC device) |
| Logic Family | CMOS |
EPF8820AQC208-2N 引脚配置
| 引脚 1 | I/O — User I/O pin (bank 1) |
| 引脚 2 | I/O — User I/O pin (bank 1) |
| 引脚 3 | I/O — User I/O pin (bank 1) |
| 引脚 4 | I/O — User I/O pin (bank 1) |
| 引脚 5 | VCCIO — I/O supply voltage |
| 引脚 6 | GND — Ground |
| 引脚 7 | TDI — JTAG Test Data In |
| 引脚 8 | TCK — JTAG Test Clock |
| 引脚 9 | TMS — JTAG Test Mode Select |
| 引脚 10 | nSTATUS — Configuration status |
| 引脚 11 | nCONFIG — Configuration control (active low) |
| 引脚 12 | CONFIG_DONE — Configuration complete |
| 引脚 13 | DCLK — Configuration clock |
| 引脚 14 | DATA0 — Configuration data input |
| 引脚 15 | VCCINT — Core supply voltage 5 V |
| 引脚 16 | GND — Ground |
| 引脚 17 | CLK0 — Dedicated clock input |
| 引脚 18 | CLK1 — Dedicated clock input |
| 引脚 19 | CLK2 — Dedicated clock input |
| 引脚 20 | I/O — User I/O pin |
| 引脚 21 | I/O — User I/O pin |
| 引脚 22 | I/O — User I/O pin |
| 引脚 23 | I/O — User I/O pin |
| 引脚 24 | I/O — User I/O pin |
| 引脚 25 | I/O — User I/O pin |
| 引脚 26 | I/O — User I/O pin |
| 引脚 27 | I/O — User I/O pin |
| 引脚 28 | I/O — User I/O pin |
| 引脚 29 | I/O — User I/O pin |
| 引脚 30 | I/O — User I/O pin |
| 引脚 31 | I/O — User I/O pin |
| 引脚 32 | I/O — User I/O pin |
| 引脚 33 | I/O — User I/O pin |
| 引脚 34 | I/O — User I/O pin |
| 引脚 35 | I/O — User I/O pin |
| 引脚 36 | I/O — User I/O pin |
| 引脚 37 | I/O — User I/O pin |
| 引脚 38 | I/O — User I/O pin |
| 引脚 39 | I/O — User I/O pin |
| 引脚 40 | I/O — User I/O pin |
| 引脚 41 | I/O — User I/O pin |
| 引脚 42 | I/O — User I/O pin |
| 引脚 43 | I/O — User I/O pin |
| 引脚 44 | I/O — User I/O pin |
| 引脚 45 | I/O — User I/O pin |
| 引脚 46 | I/O — User I/O pin |
| 引脚 47 | I/O — User I/O pin |
| 引脚 48 | I/O — User I/O pin |
| 引脚 49 | I/O — User I/O pin |
| 引脚 50 | I/O — User I/O pin |
| 引脚 51 | I/O — User I/O pin |
| 引脚 52 | I/O — User I/O pin |
| 引脚 53 | VCCIO — I/O supply voltage |
| 引脚 54 | GND — Ground |
| 引脚 55 | I/O — User I/O pin (bank 2) |
| 引脚 56 | I/O — User I/O pin (bank 2) |
| 引脚 57 | I/O — User I/O pin (bank 2) |
| 引脚 58 | I/O — User I/O pin (bank 2) |
| 引脚 59 | I/O — User I/O pin (bank 2) |
| 引脚 60 | I/O — User I/O pin (bank 2) |
| 引脚 61 | I/O — User I/O pin (bank 2) |
| 引脚 62 | I/O — User I/O pin (bank 2) |
| 引脚 63 | I/O — User I/O pin (bank 2) |
| 引脚 64 | I/O — User I/O pin (bank 2) |
| 引脚 65 | I/O — User I/O pin (bank 2) |
| 引脚 66 | I/O — User I/O pin (bank 2) |
| 引脚 67 | I/O — User I/O pin (bank 2) |
| 引脚 68 | I/O — User I/O pin (bank 2) |
| 引脚 69 | I/O — User I/O pin (bank 2) |
| 引脚 70 | I/O — User I/O pin (bank 2) |
| 引脚 71 | I/O — User I/O pin (bank 2) |
| 引脚 72 | I/O — User I/O pin (bank 2) |
| 引脚 73 | I/O — User I/O pin (bank 2) |
| 引脚 74 | I/O — User I/O pin (bank 2) |
| 引脚 75 | I/O — User I/O pin (bank 2) |
| 引脚 76 | I/O — User I/O pin (bank 2) |
| 引脚 77 | I/O — User I/O pin (bank 2) |
| 引脚 78 | I/O — User I/O pin (bank 2) |
| 引脚 79 | I/O — User I/O pin (bank 2) |
| 引脚 80 | I/O — User I/O pin (bank 2) |
| 引脚 81 | I/O — User I/O pin (bank 2) |
| 引脚 82 | I/O — User I/O pin (bank 2) |
| 引脚 83 | I/O — User I/O pin (bank 2) |
| 引脚 84 | I/O — User I/O pin (bank 2) |
| 引脚 85 | I/O — User I/O pin (bank 2) |
| 引脚 86 | I/O — User I/O pin (bank 2) |
| 引脚 87 | I/O — User I/O pin (bank 2) |
| 引脚 88 | I/O — User I/O pin (bank 2) |
| 引脚 89 | I/O — User I/O pin (bank 2) |
| 引脚 90 | I/O — User I/O pin (bank 2) |
| 引脚 91 | I/O — User I/O pin (bank 2) |
| 引脚 92 | I/O — User I/O pin (bank 2) |
| 引脚 93 | I/O — User I/O pin (bank 2) |
| 引脚 94 | I/O — User I/O pin (bank 2) |
| 引脚 95 | I/O — User I/O pin (bank 2) |
| 引脚 96 | I/O — User I/O pin (bank 2) |
| 引脚 97 | I/O — User I/O pin (bank 2) |
| 引脚 98 | I/O — User I/O pin (bank 2) |
| 引脚 99 | I/O — User I/O pin (bank 2) |
| 引脚 100 | I/O — User I/O pin (bank 2) |
| 引脚 101 | I/O — User I/O pin (bank 3) |
| 引脚 102 | I/O — User I/O pin (bank 3) |
| 引脚 103 | I/O — User I/O pin (bank 3) |
| 引脚 104 | I/O — User I/O pin (bank 3) |
| 引脚 105 | I/O — User I/O pin (bank 3) |
| 引脚 106 | I/O — User I/O pin (bank 3) |
| 引脚 107 | I/O — User I/O pin (bank 3) |
| 引脚 108 | I/O — User I/O pin (bank 3) |
| 引脚 109 | I/O — User I/O pin (bank 3) |
| 引脚 110 | I/O — User I/O pin (bank 3) |
| 引脚 111 | I/O — User I/O pin (bank 3) |
| 引脚 112 | I/O — User I/O pin (bank 3) |
| 引脚 113 | I/O — User I/O pin (bank 3) |
| 引脚 114 | I/O — User I/O pin (bank 3) |
| 引脚 115 | I/O — User I/O pin (bank 3) |
| 引脚 116 | I/O — User I/O pin (bank 3) |
| 引脚 117 | I/O — User I/O pin (bank 3) |
| 引脚 118 | I/O — User I/O pin (bank 3) |
| 引脚 119 | I/O — User I/O pin (bank 3) |
| 引脚 120 | I/O — User I/O pin (bank 3) |
| 引脚 121 | I/O — User I/O pin (bank 3) |
| 引脚 122 | I/O — User I/O pin (bank 3) |
| 引脚 123 | I/O — User I/O pin (bank 3) |
| 引脚 124 | I/O — User I/O pin (bank 3) |
| 引脚 125 | I/O — User I/O pin (bank 3) |
| 引脚 126 | I/O — User I/O pin (bank 3) |
| 引脚 127 | I/O — User I/O pin (bank 3) |
| 引脚 128 | I/O — User I/O pin (bank 3) |
| 引脚 129 | I/O — User I/O pin (bank 3) |
| 引脚 130 | I/O — User I/O pin (bank 3) |
| 引脚 131 | I/O — User I/O pin (bank 3) |
| 引脚 132 | I/O — User I/O pin (bank 3) |
| 引脚 133 | I/O — User I/O pin (bank 3) |
| 引脚 134 | I/O — User I/O pin (bank 3) |
| 引脚 135 | I/O — User I/O pin (bank 3) |
| 引脚 136 | I/O — User I/O pin (bank 3) |
| 引脚 137 | I/O — User I/O pin (bank 3) |
| 引脚 138 | I/O — User I/O pin (bank 3) |
| 引脚 139 | I/O — User I/O pin (bank 3) |
| 引脚 140 | I/O — User I/O pin (bank 3) |
| 引脚 141 | I/O — User I/O pin (bank 3) |
| 引脚 142 | I/O — User I/O pin (bank 3) |
| 引脚 143 | I/O — User I/O pin (bank 3) |
| 引脚 144 | I/O — User I/O pin (bank 3) |
| 引脚 145 | I/O — User I/O pin (bank 3) |
| 引脚 146 | I/O — User I/O pin (bank 3) |
| 引脚 147 | I/O — User I/O pin (bank 3) |
| 引脚 148 | I/O — User I/O pin (bank 3) |
| 引脚 149 | I/O — User I/O pin (bank 3) |
| 引脚 150 | I/O — User I/O pin (bank 3) |
| 引脚 151 | I/O — User I/O pin (bank 3) |
| 引脚 152 | I/O — User I/O pin (bank 3) |
| 引脚 153 | VCCINT — Core supply voltage 5 V |
| 引脚 154 | GND — Ground |
| 引脚 155 | I/O — User I/O pin (bank 4) |
| 引脚 156 | I/O — User I/O pin (bank 4) |
| 引脚 157 | I/O — User I/O pin (bank 4) |
| 引脚 158 | I/O — User I/O pin (bank 4) |
| 引脚 159 | I/O — User I/O pin (bank 4) |
| 引脚 160 | I/O — User I/O pin (bank 4) |
| 引脚 161 | I/O — User I/O pin (bank 4) |
| 引脚 162 | I/O — User I/O pin (bank 4) |
| 引脚 163 | I/O — User I/O pin (bank 4) |
| 引脚 164 | I/O — User I/O pin (bank 4) |
| 引脚 165 | I/O — User I/O pin (bank 4) |
| 引脚 166 | I/O — User I/O pin (bank 4) |
| 引脚 167 | I/O — User I/O pin (bank 4) |
| 引脚 168 | I/O — User I/O pin (bank 4) |
| 引脚 169 | I/O — User I/O pin (bank 4) |
| 引脚 170 | I/O — User I/O pin (bank 4) |
| 引脚 171 | I/O — User I/O pin (bank 4) |
| 引脚 172 | I/O — User I/O pin (bank 4) |
| 引脚 173 | I/O — User I/O pin (bank 4) |
| 引脚 174 | I/O — User I/O pin (bank 4) |
| 引脚 175 | I/O — User I/O pin (bank 4) |
| 引脚 176 | I/O — User I/O pin (bank 4) |
| 引脚 177 | I/O — User I/O pin (bank 4) |
| 引脚 178 | I/O — User I/O pin (bank 4) |
| 引脚 179 | I/O — User I/O pin (bank 4) |
| 引脚 180 | I/O — User I/O pin (bank 4) |
| 引脚 181 | I/O — User I/O pin (bank 4) |
| 引脚 182 | I/O — User I/O pin (bank 4) |
| 引脚 183 | I/O — User I/O pin (bank 4) |
| 引脚 184 | I/O — User I/O pin (bank 4) |
| 引脚 185 | I/O — User I/O pin (bank 4) |
| 引脚 186 | I/O — User I/O pin (bank 4) |
| 引脚 187 | I/O — User I/O pin (bank 4) |
| 引脚 188 | I/O — User I/O pin (bank 4) |
| 引脚 189 | I/O — User I/O pin (bank 4) |
| 引脚 190 | I/O — User I/O pin (bank 4) |
| 引脚 191 | I/O — User I/O pin (bank 4) |
| 引脚 192 | I/O — User I/O pin (bank 4) |
| 引脚 193 | I/O — User I/O pin (bank 4) |
| 引脚 194 | I/O — User I/O pin (bank 4) |
| 引脚 195 | I/O — User I/O pin (bank 4) |
| 引脚 196 | I/O — User I/O pin (bank 4) |
| 引脚 197 | I/O — User I/O pin (bank 4) |
| 引脚 198 | I/O — User I/O pin (bank 4) |
| 引脚 199 | I/O — User I/O pin (bank 4) |
| 引脚 200 | I/O — User I/O pin (bank 4) |
| 引脚 201 | I/O — User I/O pin (bank 4) |
| 引脚 202 | I/O — User I/O pin (bank 4) |
| 引脚 203 | I/O — User I/O pin (bank 4) |
| 引脚 204 | I/O — User I/O pin (bank 4) |
| 引脚 205 | I/O — User I/O pin (bank 4) |
| 引脚 206 | I/O — User I/O pin (bank 4) |
| 引脚 207 | TDO — JTAG Test Data Out |
| 引脚 208 | VCCIO — I/O supply voltage |
典型应用
EPF8820AQC208-2N 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： EPF8820AQC208-2N ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Lead-free / Pb-free assembly compliance （对比 EPF8820AQC208-2)
- Slower speed grade (-2) offers wider timing margin （对比 EPF8820AQC208-3)
- Highest usable-gate count in the FLEX 8000 208-PQFP family （对比 EPF8636AQC208-3)
设计说明
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.
合规信息
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.
