EPF8820ARC208-C - FLEX 8000 FPGA, 8K Gates, 152 I/O | Altera
料号： EPF8820ARC208-C ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $32.4 | $324.00 |
| 100 | $26.85 | $2,685.00 |
| 500 | $22.1 | $11,050.00 |
| 1,000 | $18.75 | $18,750.00 |
EPF8820ARC208-C 概述
An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that uses an array of configurable logic blocks (CLBs), a programmable interconnect network, and programmable I/O cells to implement arbitrary digital logic. In the taxonomy of digital semiconductors, an FPGA sits below an ASIC in performance but above a generic CPLD in density. FPGAs are commonly used for prototyping, low-volume designs, and applications requiring in-field reconfigurability. The FLEX 8000 family uses SRAM configuration cells, so the device must be configured at every power-up from an external EPROM or an Altera serial configuration device such as the EPC1, EPC1213, EPC1064, or EPC1441.
Key features of the EPF8820ARC208-C include 8,000 usable gates, 672 logic cells, 152 maximum user I/Os, MultiVolt I/O (3.3V / 5.0V), in-circuit reconfigurability (ICR), and built-in JTAG support via the IEEE 1149.1 boundary-scan interface. The architecture is built on a 0.42um CMOS process with five interconnect layers, and the device operates from a single 4.75V to 5.25V supply. The 208-RQFP package (28x28 mm body, 0.5 mm pitch) is a plastic surface-mount option compatible with conventional SMT assembly lines.
The FLEX 8000 architecture employs continuous, high-performance FastTrack interconnect routing across the entire die, giving consistent and predictable timing across all logic paths. Each Logic Array Block (LAB) contains 8 to 16 logic elements (LEs), and each LE combines a 4-input look-up table with a dedicated programmable register, fast carry chain for arithmetic, and a cascade chain for wide fan-in functions. Embedded Logic Array Blocks (ELABs) provide efficient memory implementation, and the IOE structure supports a wide range of I/O standards including TTL, CMOS, and PCI with configurable drive strength and slew-rate control.
Typical applications for the EPF8820ARC208-C include 5V PCI bus interface logic, industrial control glue logic, telecommunications line-card controllers, legacy peripheral bridging, and ASIC prototyping where the 152 I/Os and 8K-gate capacity provide a comfortable margin for peripheral controllers, bus arbitration, and protocol adaptation. The MultiVolt feature makes the part especially attractive in mixed-voltage systems where a 5V core must interface to 3.3V peripherals without external level shifters.
When designing with the EPF8820ARC208-C, plan the configuration scheme early because FLEX 8000 devices are SRAM-based and lose configuration when power is removed. A serial or parallel configuration PROM (EPC1, EPC1064, or EPC1441) must be present at every power-on. For high-reliability designs, add CRC checking in the user logic because configuration bit-stream errors can corrupt the device behavior. The 208-RQFP exposed pad improves thermal dissipation, but at moderate toggle rates the part usually requires no additional heatsinking.
This page synthesizes distributor availability, drop-in compatible FLEX 8000 variants, and practical design considerations not found in the manufacturer datasheet alone, giving engineers an at-a-glance comparison to alternatives such as the EPF8820ARC208-3, EPF8820AQC208-4, and other FLEX 8000 family members in the same 208-RQFP footprint.
直接替换替代料： EPF8820ARC208-C ——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： EPF8820ARC208-C （相同外形与封装尺寸） ——差异在于 Process Technology, Package, Configuration Method, Operating Temperature, Speed Grade.
快速对比工具——选择替代料号进行并排对比：
EPF8820ARC208-2
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$17.95 / 个
查看数据手册 →EPF8820ARC208-3
✅ 直接替换✓ 有现货
$62 / 个
查看数据手册 →EPF8820ARC208-4
✅ 直接替换✓ 有现货
$25.4 / 个
查看数据手册 →EPF8820ARC208-5
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$9.95 / 个
查看数据手册 →EPF8820ARC208-2N
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$20.55 / 个
查看数据手册 →EPF8820AQC208-4
✅ 直接替换✓ 有现货
$32.8 / 个
查看数据手册 →EPF8820AQC208-3
✅ 直接替换✓ 有现货
$18.95 / 个
查看数据手册 →EPF8820ARC208-C 最大额定值与电气特性
| Family | FLEX 8000 |
| Usable Gates | 8,000 |
| Logic Elements | 672 |
| Maximum User I/Os | 152 |
| Logic Array Blocks (LABs) | 8 to 16 LEs per LAB |
| Supply Voltage (VCCINT) | 4.75 V to 5.25 V |
| I/O Voltage (VCCIO) | 3.3 V or 5.0 V (MultiVolt) |
| Process Technology | 0.42 um CMOS, 5 metal layers |
| Configuration Technology | CMOS SRAM (volatile) |
| 工作温度 | 0 C to +70 C (commercial) |
| 封装 | 208-RQFP Exposed Pad (28x28 mm, 0.5 mm pitch) |
| 安装类型 | Surface Mount |
| In-Circuit Reconfigurability | Yes (ICR) |
| Boundary-Scan Support | Yes (IEEE 1149.1 JTAG) |
| Configuration Devices Supported | EPC1, EPC1213, EPC1064, EPC1441 |
EPF8820ARC208-C 208-rqfp exposed pad (28x28 mm, 0.5 mm pitch) 引脚配置指南
EPF8820ARC208-C（208-rqfp exposed pad (28x28 mm, 0.5 mm pitch) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： EPF8820ARC208-C.
请参阅 数据手册 以查看完整引脚配置。
典型应用
EPF8820ARC208-C 适用于 6 应用s: 5V PCI Bus Interface Logic, Industrial Control Glue Logic, ASIC Prototyping and Pre-Silicon Validation, Telecommunications Line-Card Controllers, Legacy Peripheral Bridging and Protocol Conversion, Test and Measurement Instrumentation Front-Ends.
5V PCI Bus Interface Logic
The EPF8820ARC208-C's 152 user I/Os, MultiVolt 5V/3.3V I/O support, and 8K-gate logic capacity make it well suited to legacy 5V PCI bus interface logic where protocol translation and bus arbitration must be implemented in programmable hardware. The FLEX 8000 architecture provides deterministic FastTrack interconnect timing across all 152 pins, which is essential for meeting the PCI 33 MHz bus cycle requirements without cycle stealing. Place the device between the PCI connector and a downstream controller ASIC or microcontroller; use the JTAG (IEEE 1149.1) port for in-system test access. The 208-RQFP package exposes enough I/Os to drive a full 32-bit PCI bus plus side-band signals, and the SRAM-based configuration lets engineers iterate on bus-state machines without spinning the board.
推荐
Industrial Control Glue Logic
The EPF8820ARC208-C is widely deployed as programmable glue logic in industrial control platforms, replacing dozens of 74-series TTL parts with a single 8K-gate FLEX 8000 device. With 152 user I/Os and MultiVolt I/O, the part can interface directly to 5V PLC backplanes and 3.3V sensor ASICs without external level shifters, reducing BOM count and PCB area. The commercial temperature grade (0C to +70C) covers most factory-floor enclosures; for harsher environments, choose the -I industrial grade variant. The in-circuit reconfigurability feature lets field engineers update control logic through the JTAG port without removing the board, which is critical for serviceability of installed industrial equipment.
推荐
ASIC Prototyping and Pre-Silicon Validation
The EPF8820ARC208-C offers 8,000 usable gates in a 152-I/O device, making it a popular vehicle for ASIC prototyping before tape-out. Engineers map RTL blocks into FLEX 8000 logic elements to validate system architecture, firmware, and real-world timing long before the ASIC is fabricated, de-risking the entire design cycle. The FLEX 8000 architecture supports incremental design via in-circuit reconfigurability, allowing prototype revisions to be downloaded through the JTAG port in seconds. The 208-RQFP package also gives plenty of bread-board-friendly I/O for hooking up to legacy prototype target systems. For larger ASIC prototypes, multiple EPF8820ARC208-C devices can be cascaded through the JTAG chain.
推荐
Telecommunications Line-Card Controllers
Telecommunications line cards in legacy TDM and early-generation VoIP systems often require 100+ I/Os of protocol adaptation, framing, and clock-domain crossing logic - exactly the workload the EPF8820ARC208-C was designed for. The 152 user I/Os accommodate multiple E1/T1 framers, HDB3 line codecs, and a control-plane microcontroller interface in a single device, simplifying board layout. MultiVolt I/O lets the same part interface to 5V legacy transceivers and 3.3V newer DSP chips without glue logic, while the 5V core supply matches the legacy telecom power bus. The commercial temperature grade covers central-office controlled environments; for outdoor enclosures, choose the -I industrial variant.
推荐
Legacy Peripheral Bridging and Protocol Conversion
The EPF8820ARC208-C bridges legacy peripheral interfaces such as ISA, VME, and PC/104 to modern processors without an expensive ASIC development cycle. The 8K-gate capacity is sufficient for full bus-state machines, FIFOs, and interrupt controllers in a single device, while 152 I/Os handle wide legacy buses and side-band signals. The FLEX 8000 SRAM-based configuration means firmware updates for new peripheral protocols can be applied in the field through the JTAG port, extending the usable life of installed equipment. The 5V MultiVolt I/O directly drives ISA bus pull-ups and PC/104 cards without external buffers, keeping the BOM small.
推荐
Test and Measurement Instrumentation Front-Ends
Bench-top and ATE (automatic test equipment) front-ends use FPGAs to implement programmable stimulus generation, response capture, and timing-and-control sequencing. The EPF8820ARC208-C's 152 I/Os provide enough pins to drive dozens of test points and DUT-side signals, while the 8K-gate capacity fits a complete pattern generator, expected-response comparator, and IEEE 1149.1 JTAG controller on one chip. MultiVolt I/O allows the same part to interface to 3.3V modern DUTs and 5V legacy instruments on the same board. The SRAM-based configuration means test sequences can be swapped in seconds through the JTAG port, supporting fast test-program development cycles.
推荐
推荐产品汇总
工程参考数据： EPF8820ARC208-C ——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 | EPF8820ARC208-2 | EPF8820ARC208-3 | EPF8820ARC208-4 | EPF8820AQC208-4 |
|---|---|---|---|---|---|
| Package | 208-RQFP Exposed Pad (28x28 mm) | 208-RQFP Exposed Pad - same | 208-RQFP Exposed Pad - same | 208-RQFP Exposed Pad - same | 208-PQFP (28x28 mm) - same footprint |
| Brand | Altera | Altera | Altera | Altera | Altera |
| Usable Gates | 8,000 | 8,000 | 8,000 | 8,000 | 8,000 |
| Logic Elements | 672 | 672 | 672 | 672 | 672 |
| Maximum User I/Os | 152 | 152 | 152 | 152 | 152 |
| Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Speed Grade | Commercial grade (-C) | -2 speed grade | -3 speed grade | -4 speed grade | -4 speed grade |
| Temperature Grade | Commercial (0C to +70C) | Commercial | Commercial | Commercial | Commercial |
| Configuration Technology | CMOS SRAM (volatile) | CMOS SRAM (volatile) | CMOS SRAM (volatile) | CMOS SRAM (volatile) | CMOS SRAM (volatile) |
关键差异点
- MultiVolt I/O in a single 5V core device （对比 Older 5V-only FPGAs (pre-MultiVolt))
- FLEX 8000 FastTrack interconnect provides predictable timing （对比 CPLD-style segmented interconnect)
- 152 user I/Os in a single 208-RQFP package （对比 Lower-density 144-pin FLEX 8000 variants)
- Pin-compatible speed-grade family for second sourcing （对比 EPF8820ARC208-3 (alternative in the same family))
设计说明
The EPF8820ARC208-C requires two supplies: VCCINT at 4.75V to 5.25V for the core logic, and VCCIO at 3.3V or 5.0V for the I/O banks (MultiVolt). Decouple each VCC pin with a 0.1uF ceramic capacitor placed as close to the package as possible, and add a single 10uF to 47uF bulk tantalum or ceramic capacitor near the device. Estimated: at 50 MHz toggling across 50% of I/Os, ICCINT draws approximately 50 to 150 mA; place a bulk capacitor rated for at least 250 mA ripple to avoid supply droop during simultaneous-switching events. Power sequencing requires VCCINT to come up before or simultaneously with VCCIO; otherwise the I/O pins can drive into the unpowered core and cause latch-up.
FLEX 8000 devices are SRAM-based and lose their configuration when power is removed. Every EPF8820ARC208-C board MUST include a configuration PROM (EPC1, EPC1064, EPC1213, or EPC1441) or a system controller that loads the bit-stream at every power-up. Forgetting the configuration device is the most common reason a 'dead' FLEX 8000 board never wakes up. Also, an external pull-up resistor on nCONFIG (typically 10 kohm to VCCIO) is required to enable user-controlled reconfiguration; without it the device cannot be reconfigured in-circuit via the JTAG port.
The 208-RQFP package has an exposed thermal pad on the underside that must be soldered to a PCB copper pour for reliable thermal performance. Estimated: at typical 5V operation with moderate toggle rates, the EPF8820ARC208-C dissipates 0.5 W to 1.5 W; the exposed pad reduces junction-to-ambient thermal resistance (theta_JA) by roughly 30% compared with a non-pad QFP. For continuous high-toggle applications such as PCI bus bridges, design the PCB copper pour to cover at least 1 square inch connected to the exposed pad through at least 9 thermal vias (0.3 mm drill) to the inner ground plane.
Route the JTAG chain (TCK, TMS, TDI, TDO) as a daisy-chain with no stubs, keeping each device-to-device segment under 50 mm to preserve signal integrity at the TCK frequency. Place a 10 kohm pull-up on TMS and TDI to keep the JTAG TAP controller in a known state during power-up. For high-speed MultiVolt I/O at 5.0V, route 8 to 16 signals per layer with a continuous ground reference plane underneath; for 3.3V operation the same layout works but with relaxed spacing. The configuration clock (DCLK) trace must be kept short and shielded by ground to avoid bit-stream corruption during power-up.
合规信息
Compliance status for the EPF8820ARC208-C is not stated in the verified web data; the FLEX 8000 family predates widespread RoHS documentation. The lead-free 'N' suffix variants (e.g. EPF8820ARC208-2N, EPF8820ARC208-3N) are the recommended choice for RoHS-compliant assemblies; verify the specific date code with the distributor.
