EPF8820ARC208-2 - 8K-Gate FLEX 8000 FPGA 152 I/O | Altera
MPN： EPF8820ARC208-2 ✗ 停產EPF8820ARC208-2 概覽
An FPGA (Field Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells. FPGAs sit between fixed-function ASICs and discrete logic: like an ASIC they implement arbitrary digital functions, but unlike an ASIC the design is loaded into on-chip SRAM at every power-up, enabling in-circuit reconfigurability (ICR). Within the broader taxonomy, EPF8820ARC208-2 belongs to PLD -> CPLD/FPGA -> SRAM-based FPGA -> high-density register-rich programmable logic family, a category historically used for glue logic, bus bridging, and state-machine consolidation in telecom, industrial, and computing designs.
Key features include MultiVolt I/O operation (3.3 V or 5.0 V interface on all packages except 84-pin variants), in-system configuration via Altera EPC1/EPC1064/EPC1213/EPC1441 serial configuration devices or a microprocessor, 1,500 registers across the array, and JTAG-compliant boundary-scan test support. The Logic Array Blocks (LABs) and Enhanced Interconnect provide deterministic, predictable timing that Quartus and MAX+PLUS II development flows exploit for fast compile cycles.
The architecture combines four Logic Elements per Logic Array Block, FastTrack continuous routing, and dedicated carry chains for arithmetic. Internal SRAM configuration memory is volatile, so an external configuration EPROM or controller must present the bitstream on each power-up; this is what makes FLEX 8000 devices in-circuit reconfigurable but also non-volatile-free in their default form.
Typical applications include telecommunications line-card glue logic, industrial control and factory automation state machines, PCI/ISA bus bridges, video and image-processing data-path controllers, and legacy 5 V computing systems that require drop-in 5 V-tolerant I/O. The MultiVolt feature is particularly attractive in mixed-voltage designs (3.3 V core, 5 V peripherals).
When designing with EPF8820ARC208-2, ensure the configuration scheme (EPC serial device, parallel EPROM, or microcontroller) is correctly dimensioned for the chosen bitstream size and that the exposed thermal pad is soldered to a sufficient copper pour to keep junction temperature within the commercial range.
This page synthesizes Altera FLEX 8000 datasheet extracts, DigiKey/Mouser distributor pricing, drop-in same-family alternatives, and practical design considerations not found on any single manufacturer or distributor page.
直接替換替代品，適用於 EPF8820ARC208-2 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： EPF8820ARC208-2 （相同外形與佔位） — 差異在於 Package, Configuration Method, Process Technology, Operating Temperature, Usable Gates.
EPF8820ARC208-4
✅ 直接替換聯絡詢價
查看資料表 →EPF8820ARC208-3
✅ 直接替換聯絡詢價
查看資料表 →EPF8820AQC208-2
✅ 直接替換聯絡詢價
查看資料表 →EPF8820AQC208-3
✅ 直接替換聯絡詢價
查看資料表 →EPF8820AQC208-2N
✅ 直接替換聯絡詢價
查看資料表 →EPF8636ARC208-4
✅ 直接替換聯絡詢價
查看資料表 →EPF8820ARC208-2 最大額定值與電氣特性
| Family | FLEX 8000 |
| Logic Cells | 672 |
| Usable Gates | 8,000 (typical) |
| Registers | 1,500 (max) |
| User I/O Pins | 152 |
| 封裝 | 208-pin RQFP / BFQFP with exposed pad |
| Process Technology | 0.42 µm CMOS |
| Supply Voltage (Core) | 5 V |
| I/O Voltage (MultiVolt) | 3.3 V or 5.0 V |
| Speed Grade | -2 |
| Max Internal Frequency | 125 MHz |
| Configuration Method | SRAM - serial EPC device, parallel EPROM, or microcontroller |
| In-Circuit Reconfigurable | Yes (ICR) |
| Boundary-Scan / JTAG | Yes |
| 工作溫度 | Commercial (0 °C to +70 °C) |
| 安裝類型 | Surface Mount |
EPF8820ARC208-2 腳位配置
| 腳位 1 | I/O — User I/O pin (bank-dependent voltage) |
| 腳位 2 | I/O — User I/O pin |
| 腳位 3 | I/O — User I/O pin |
| 腳位 4 | I/O — User I/O pin |
| 腳位 5 | VCCIO — I/O supply voltage (3.3 V or 5.0 V per MultiVolt) |
| 腳位 6 | I/O — User I/O pin |
| 腳位 7 | I/O — User I/O pin |
| 腳位 8 | GND — Ground |
| 腳位 9 | I/O — User I/O pin |
| 腳位 10 | I/O — User I/O pin |
| 腳位 11 | I/O — User I/O pin |
| 腳位 12 | VCCINT — Core supply voltage (5 V) |
| 腳位 13 | I/O — User I/O pin |
| 腳位 14 | I/O — User I/O pin |
| 腳位 15 | I/O — User I/O pin |
| 腳位 16 | GND — Ground |
| 腳位 17 | I/O — User I/O pin |
| 腳位 18 | I/O — User I/O pin |
| 腳位 19 | I/O — User I/O pin |
| 腳位 20 | VCCIO — I/O supply voltage |
| 腳位 21 | I/O — User I/O pin |
| 腳位 22 | I/O — User I/O pin |
| 腳位 23 | I/O — User I/O pin |
| 腳位 24 | GND — Ground |
| 腳位 25 | I/O — User I/O pin |
| 腳位 26 | I/O — User I/O pin |
| 腳位 27 | I/O — User I/O pin |
| 腳位 28 | VCCINT — Core supply voltage (5 V) |
| 腳位 29 | I/O — User I/O pin |
| 腳位 30 | I/O — User I/O pin |
| 腳位 31 | I/O — User I/O pin |
| 腳位 32 | GND — Ground |
| 腳位 33 | I/O — User I/O pin |
| 腳位 34 | I/O — User I/O pin |
| 腳位 35 | I/O — User I/O pin |
| 腳位 36 | VCCIO — I/O supply voltage |
| 腳位 37 | I/O — User I/O pin |
| 腳位 38 | I/O — User I/O pin |
| 腳位 39 | I/O — User I/O pin |
| 腳位 40 | GND — Ground |
| 腳位 41 | I/O — User I/O pin |
| 腳位 42 | I/O — User I/O pin |
| 腳位 43 | I/O — User I/O pin |
| 腳位 44 | VCCINT — Core supply voltage (5 V) |
| 腳位 45 | I/O — User I/O pin |
| 腳位 46 | I/O — User I/O pin |
| 腳位 47 | I/O — User I/O pin |
| 腳位 48 | GND — Ground |
| 腳位 49 | I/O — User I/O pin |
| 腳位 50 | I/O — User I/O pin |
| 腳位 51 | I/O — User I/O pin |
| 腳位 52 | VCCIO — I/O supply voltage |
| 腳位 53 | I/O — User I/O pin |
| 腳位 54 | I/O — User I/O pin |
| 腳位 55 | I/O — User I/O pin |
| 腳位 56 | GND — Ground |
| 腳位 57 | I/O — User I/O pin |
| 腳位 58 | I/O — User I/O pin |
| 腳位 59 | I/O — User I/O pin |
| 腳位 60 | VCCINT — Core supply voltage (5 V) |
| 腳位 61 | I/O — User I/O pin |
| 腳位 62 | I/O — User I/O pin |
| 腳位 63 | I/O — User I/O pin |
| 腳位 64 | GND — Ground |
| 腳位 65 | I/O — User I/O pin |
| 腳位 66 | I/O — User I/O pin |
| 腳位 67 | I/O — User I/O pin |
| 腳位 68 | VCCIO — I/O supply voltage |
| 腳位 69 | I/O — User I/O pin |
| 腳位 70 | I/O — User I/O pin |
| 腳位 71 | I/O — User I/O pin |
| 腳位 72 | GND — Ground |
| 腳位 73 | I/O — User I/O pin |
| 腳位 74 | I/O — User I/O pin |
| 腳位 75 | I/O — User I/O pin |
| 腳位 76 | VCCINT — Core supply voltage (5 V) |
| 腳位 77 | I/O — User I/O pin |
| 腳位 78 | I/O — User I/O pin |
| 腳位 79 | I/O — User I/O pin |
| 腳位 80 | GND — Ground |
| 腳位 81 | I/O — User I/O pin |
| 腳位 82 | I/O — User I/O pin |
| 腳位 83 | I/O — User I/O pin |
| 腳位 84 | VCCIO — I/O supply voltage |
| 腳位 85 | I/O — User I/O pin |
| 腳位 86 | I/O — User I/O pin |
| 腳位 87 | I/O — User I/O pin |
| 腳位 88 | GND — Ground |
| 腳位 89 | I/O — User I/O pin |
| 腳位 90 | I/O — User I/O pin |
| 腳位 91 | I/O — User I/O pin |
| 腳位 92 | VCCINT — Core supply voltage (5 V) |
| 腳位 93 | I/O — User I/O pin |
| 腳位 94 | I/O — User I/O pin |
| 腳位 95 | I/O — User I/O pin |
| 腳位 96 | GND — Ground |
| 腳位 97 | I/O — User I/O pin |
| 腳位 98 | I/O — User I/O pin |
| 腳位 99 | I/O — User I/O pin |
| 腳位 100 | VCCIO — I/O supply voltage |
| 腳位 101 | I/O — User I/O pin |
| 腳位 102 | I/O — User I/O pin |
| 腳位 103 | I/O — User I/O pin |
| 腳位 104 | GND — Ground |
| 腳位 105 | I/O — User I/O pin |
| 腳位 106 | I/O — User I/O pin |
| 腳位 107 | I/O — User I/O pin |
| 腳位 108 | VCCINT — Core supply voltage (5 V) |
| 腳位 109 | I/O — User I/O pin |
| 腳位 110 | I/O — User I/O pin |
| 腳位 111 | I/O — User I/O pin |
| 腳位 112 | GND — Ground |
| 腳位 113 | I/O — User I/O pin |
| 腳位 114 | I/O — User I/O pin |
| 腳位 115 | I/O — User I/O pin |
| 腳位 116 | VCCIO — I/O supply voltage |
| 腳位 117 | I/O — User I/O pin |
| 腳位 118 | I/O — User I/O pin |
| 腳位 119 | I/O — User I/O pin |
| 腳位 120 | GND — Ground |
| 腳位 121 | I/O — User I/O pin |
| 腳位 122 | I/O — User I/O pin |
| 腳位 123 | I/O — User I/O pin |
| 腳位 124 | VCCINT — Core supply voltage (5 V) |
| 腳位 125 | I/O — User I/O pin |
| 腳位 126 | I/O — User I/O pin |
| 腳位 127 | I/O — User I/O pin |
| 腳位 128 | GND — Ground |
| 腳位 129 | I/O — User I/O pin |
| 腳位 130 | I/O — User I/O pin |
| 腳位 131 | I/O — User I/O pin |
| 腳位 132 | VCCIO — I/O supply voltage |
| 腳位 133 | I/O — User I/O pin |
| 腳位 134 | I/O — User I/O pin |
| 腳位 135 | I/O — User I/O pin |
| 腳位 136 | GND — Ground |
| 腳位 137 | I/O — User I/O pin |
| 腳位 138 | I/O — User I/O pin |
| 腳位 139 | I/O — User I/O pin |
| 腳位 140 | VCCINT — Core supply voltage (5 V) |
| 腳位 141 | I/O — User I/O pin |
| 腳位 142 | I/O — User I/O pin |
| 腳位 143 | I/O — User I/O pin |
| 腳位 144 | GND — Ground |
| 腳位 145 | I/O — User I/O pin |
| 腳位 146 | I/O — User I/O pin |
| 腳位 147 | I/O — User I/O pin |
| 腳位 148 | VCCIO — I/O supply voltage |
| 腳位 149 | I/O — User I/O pin |
| 腳位 150 | I/O — User I/O pin |
| 腳位 151 | I/O — User I/O pin |
| 腳位 152 | GND — Ground |
| 腳位 153 | nCONFIG — Configuration control (active-low) |
| 腳位 154 | nSTATUS — Configuration status (active-low) |
| 腳位 155 | CONF_DONE — Configuration done indicator |
| 腳位 156 | DCLK — Configuration clock input |
| 腳位 157 | DATA0 — Configuration data input |
| 腳位 158 | TCK — JTAG test clock |
| 腳位 159 | TMS — JTAG test mode select |
| 腳位 160 | TDI — JTAG test data in |
| 腳位 161 | TDO — JTAG test data out |
| 腳位 162 | I/O — User I/O pin |
| 腳位 163 | I/O — User I/O pin |
| 腳位 164 | VCCINT — Core supply voltage (5 V) |
| 腳位 165 | I/O — User I/O pin |
| 腳位 166 | I/O — User I/O pin |
| 腳位 167 | I/O — User I/O pin |
| 腳位 168 | GND — Ground |
| 腳位 169 | I/O — User I/O pin |
| 腳位 170 | I/O — User I/O pin |
| 腳位 171 | I/O — User I/O pin |
| 腳位 172 | VCCIO — I/O supply voltage |
| 腳位 173 | I/O — User I/O pin |
| 腳位 174 | I/O — User I/O pin |
| 腳位 175 | I/O — User I/O pin |
| 腳位 176 | GND — Ground |
| 腳位 177 | I/O — User I/O pin |
| 腳位 178 | I/O — User I/O pin |
| 腳位 179 | I/O — User I/O pin |
| 腳位 180 | VCCINT — Core supply voltage (5 V) |
| 腳位 181 | I/O — User I/O pin |
| 腳位 182 | I/O — User I/O pin |
| 腳位 183 | I/O — User I/O pin |
| 腳位 184 | GND — Ground |
| 腳位 185 | I/O — User I/O pin |
| 腳位 186 | I/O — User I/O pin |
| 腳位 187 | I/O — User I/O pin |
| 腳位 188 | VCCIO — I/O supply voltage |
| 腳位 189 | I/O — User I/O pin |
| 腳位 190 | I/O — User I/O pin |
| 腳位 191 | I/O — User I/O pin |
| 腳位 192 | GND — Ground |
| 腳位 193 | I/O — User I/O pin |
| 腳位 194 | I/O — User I/O pin |
| 腳位 195 | I/O — User I/O pin |
| 腳位 196 | VCCINT — Core supply voltage (5 V) |
| 腳位 197 | I/O — User I/O pin |
| 腳位 198 | I/O — User I/O pin |
| 腳位 199 | I/O — User I/O pin |
| 腳位 200 | GND — Ground |
| 腳位 201 | I/O — User I/O pin |
| 腳位 202 | I/O — User I/O pin |
| 腳位 203 | I/O — User I/O pin |
| 腳位 204 | VCCIO — I/O supply voltage |
| 腳位 205 | I/O — User I/O pin |
| 腳位 206 | I/O — User I/O pin |
| 腳位 207 | I/O — User I/O pin |
| 腳位 208 | GND — Ground (also exposed thermal pad) |
典型應用
EPF8820ARC208-2 適用於 6 應用s: Telecom Line-Card Glue Logic, Industrial Control and Factory Automation, PCI / ISA Bus Bridge and Legacy Computing, Video and Image-Processing Data Path, Automotive Infotainment and Body Electronics, Test and Measurement Instrumentation.
Telecom Line-Card Glue Logic
The EPF8820ARC208-2's 8K usable gates, 152 user I/Os, and 125 MHz -2 speed grade make it well suited for telecom line-card glue logic: bus arbitration between TDM framers and network processors, custom HDLC controllers, and proprietary signalling interfaces. Its 5 V core with 3.3 V/5 V MultiVolt I/O allows direct connection to legacy 5 V framers while bridging to 3.3 V ASICs without level shifters. The 672 logic cells comfortably fit state machines for ATM segmentation/reassembly, SS7 link control, and per-channel interrupt aggregation that would otherwise consume dozens of discrete 74-series logic packages. Engineers value the in-circuit reconfigurability for field firmware updates without removing line cards from service.
推薦
Industrial Control and Factory Automation
In factory-automation PLCs and motion controllers, the EPF8820ARC208-2 serves as a flexible I/O expander and protocol-bridge hub. Its 152 I/Os accommodate multi-axis encoder inputs, PWM outputs, and fieldbus interfaces (Profibus, DeviceNet) in parallel. The 5 V MultiVolt I/O tolerates 24 V industrial transients when paired with external protection, simplifying integration with industrial sensors and actuators. Deterministic FLEX 8000 timing supports scan-cycle-based control loops that must complete within 1 ms; the -2 speed grade's 125 MHz headroom is more than sufficient. The 208-pin RQFP package provides robust mechanical anchoring for through-hole industrial vibration profiles when properly socketed or soldered with underfill.
推薦
PCI / ISA Bus Bridge and Legacy Computing
The EPF8820ARC208-2 is frequently used as a custom bridge between PCI and ISA buses, VME, or proprietary backplanes in legacy computing systems. Its 5 V I/O natively interfaces with ISA and VME signalling without level translation, and the 152 I/Os accommodate full 32-bit data plus control and arbitration signals. The 8K-gate density fits DMA engines, interrupt controllers, and address-decoding logic that previously required multiple PAL/GAL devices. Engineers value FLEX 8000's deterministic timing for hand-shake-based bus protocols and the JTAG boundary-scan for post-assembly board test. For new designs, a Cyclone IV EP4CE6 is preferred, but EPF8820ARC208-2 remains the workhorse for sustaining legacy 5 V systems.
推薦
Video and Image-Processing Data Path
In mid-resolution video controllers, surveillance DVRs, and medical imaging preprocessing, the EPF8820ARC208-2 implements pixel pipelines, color-space converters, and frame-buffer arbiters. Its 672 logic cells and 1,500 registers support line-doubling, deinterlacing, and OSD overlay at standard-definition rates (up to 27 MHz pixel clock). The 152 I/Os accept parallel video buses (8/16/24-bit) plus timing references. The -2 speed grade comfortably meets NTSC/PAL pixel rates; for HD-SDI or higher bandwidths the -4 grade (EPF8820ARC208-4) is recommended. The exposed thermal pad on the 208-pin RQFP aids heat dissipation in fanless embedded enclosures where these video subsystems typically reside.
推薦
Automotive Infotainment and Body Electronics
Legacy automotive infotainment head units and body controllers have used the EPF8820ARC208-2 for display multiplexers, audio routing, and CAN/LIN gateways. Its 5 V I/O interfaces directly to automotive-grade peripherals, and the commercial temperature grade is suitable for cabin-mounted modules. Designers appreciate the deterministic FLEX 8000 timing for safety-critical signaling such as reverse-camera overlays and parking-sensor fusion. Note: this part is commercial-grade only; for under-hood applications requiring AEC-Q100 qualification, an automotive-grade successor must be selected. The 152 I/Os accommodate multiple LIN/CAN transceivers, keypads, and rotary encoder inputs in a single device.
推薦
Test and Measurement Instrumentation
Bench-top instruments such as logic analyzers, protocol testers, and arbitrary waveform generators use the EPF8820ARC208-2 as a customizable pattern generator, timing engine, or trigger sequencer. Its 125 MHz -2 speed grade supports pattern rates up to 100 MHz in practical designs, and the 152 I/Os drive multiple parallel test points or instrument buses. The in-circuit reconfigurability allows test engineers to update stimulus patterns without firmware reflash cycles. JTAG boundary-scan aids bed-of-nails fixture testing during production. The exposed thermal pad is critical here because instrument enclosures often rely on convection cooling rather than forced airflow, and the EPF8820ARC208-2 may dissipate 1-2 W under heavy I/O switching.
推薦
推薦產品摘要
工程參考資料，適用於 EPF8820ARC208-2 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | EPF8820ARC208-4 | EPF8820ARC208-3 | EPF8820AQC208-2 | EPF8820AQC208-3 | EPF8820AQC208-2N | EPF8636ARC208-4 |
|---|---|---|---|---|---|---|---|
| Package | 208-pin RQFP (BFQFP) with exposed pad | 208-pin RQFP - same | 208-pin RQFP - same | 208-pin PQFP - same pinout, lead-frame differs | 208-pin PQFP - same pinout | 208-pin PQFP - same pinout, lead-free | 208-pin RQFP - same |
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Usable Gates | 8,000 | 8,000 | 8,000 | 8,000 | 8,000 | 8,000 | 6,000 |
| Speed Grade | -2 | -4 (faster) | -3 | -2 | -3 | -2 | -4 |
| Core Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| MultiVolt I/O | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
主要差異化特點
- Drop-in compatibility with EPF8820ARC208-4 (對比EPF8820ARC208-4)
- PQFP packaging option for reflow-friendly assembly (對比EPF8820AQC208-2)
- Higher gate density than EPF8636A family (對比EPF8636ARC208-4)
設計說明
EPF8820ARC208-2 requires a clean 5 V supply on VCCINT pins (typically 8-10 pins distributed around the package) with high-frequency decoupling of 0.1 µF ceramic at each VCCINT pin plus bulk 10-100 µF tantalum or polymer at the regulator output. I/O banks (VCCIO) may be powered at 3.3 V or 5.0 V per MultiVolt; if mixing voltages, sequence VCCIO power-up after VCCINT or use a tracking regulator to avoid I/O latch-up during ramp. Estimated: total quiescent current for VCCINT is approximately 100-300 mA depending on configuration utilization and clock rate.
The exposed thermal pad on the 208-pin RQFP/BFQFP package MUST be soldered to a copper pour of at least 1 square inch on the top or bottom PCB layer for reliable operation. Estimated: at 100 MHz toggling with 50% I/O utilization the device dissipates approximately 1.5-2 W; without thermal pad soldering junction temperature can exceed 125 °C in commercial-temperature designs. Use 4-layer PCB with dedicated ground/power planes if possible.
Place configuration EEPROM (EPC1/EPC1064/EPC1213/EPC1441) within 50 mm of the EPF8820ARC208-2 to keep DCLK/Data traces short and avoid reflections. Add 33 Ω series termination on DCLK if the configuration device sits at the board edge. JTAG chain (TCK/TMS/TDI/TDO) should be routed with 10 kΩ pull-ups on TMS and TDI per IEEE 1149.1 to keep the TAP controller in known state at power-up.
Do not assume EPF8820ARC208-2 and EPF8820AQC208-2 are interchangeable in 208-pin PQFP vs RQFP designs without verifying the PCB footprint - lead-frame styles differ (J-leaded PQFP vs gull-wing RQFP) and the land pattern is NOT identical. Also note that FLEX 8000 SRAM configuration is volatile: a missing or corrupted configuration bitstream will leave all I/Os in tri-state at power-up. Always include a JTAG header for in-field recovery.
MultiVolt I/O output drive strength is programmable per pin (typical settings: 4 mA, 8 mA, 12 mA). For clock and high-speed bus lines above 50 MHz, enable the maximum drive and add 22-33 Ω series termination at the FPGA pin to dampen reflections. Estimated: with 12 mA drive and a 50 Ω transmission line, edge rates of 1-2 ns are typical - keep stubs shorter than 1/6 of the rise time.
合規資訊
RoHS and lead-free status not explicitly stated in available web data. The -N suffix variants (e.g. EPF8820AQC208-2N) typically denote lead-free finishes, but the original EPF8820ARC208-2 datasheet does not specify compliance. Commercial temperature grade only - not AEC-Q100 qualified.
