EPF8820ARC208-24 - FLEX 8000 FPGA, 8K Gates, 672 Cells, 208-RQFP | Altera
MPN: EPF8820ARC208-24 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $42.5 | $42.50 |
| 10 | $38.2 | $382.00 |
| 100 | $33.9 | $3,390.00 |
| 500 | $30.1 | $15,050.00 |
| 1,000 | $27.8 | $27,800.00 |
Drop-in alternatives for EPF8820ARC208-24 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →EPF8820ARC208-24 Maximum Ratings & Electrical Characteristics
| Family | FLEX 8000 |
| Usable Gates | 8,000 |
| Logic Cells | 672 |
| Logic Array Blocks (LABs) | 48 |
| User I/O Pins | 152 |
| Maximum Toggle Frequency | 125 MHz |
| Process Technology | 0.42 µm CMOS SRAM |
| Supply Voltage (VCC) | 4.75 V to 5.25 V (5 V nominal) |
| I/O Standards | 3.3 V / 5.0 V MultiVolt I/O |
| Speed Grade | -24 |
| Configuration Method | Serial configuration device (EPC1/EPC1064/EPC1213/EPC1441), parallel EPROM, or JTAG |
| In-Circuit Reconfigurability | Yes (ICR) |
| Package | 208-pin RQFP (exposed pad) |
EPF8820ARC208-24 208-pin rqfp (exposed pad) Pin Configuration Guide
Complete pinout information for EPF8820ARC208-24 (208-pin rqfp (exposed pad) package) with 152 pins. This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for EPF8820ARC208-24.
Refer to the datasheet for full pin configuration.
Estimated pin count: 152 pins (digital package)
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
EPF8820ARC208-24 is suitable for 6 applications: Industrial Control Glue Logic, Telecommunications Interface Card, ASIC Prototyping and Emulation, Legacy Peripheral Bus Bridge, Flat-Panel Display Controller, Military and Aerospace Avionics Bus Interface.
Industrial Control Glue Logic
The EPF8820ARC208-24 is well-suited to industrial control glue logic: 8,000 usable gates and 672 logic cells can host multiple state machines, encoder counters, and PWM generators simultaneously, while 152 user I/O provide fan-out to optocouplers, relay drivers, and 24 V signal-conditioning front-ends. Its 5 V MultiVolt I/O directly interfaces to 5 V PLC backplanes without level shifters, and its 125 MHz toggle frequency comfortably handles 50/60 Hz mains-synchronized control loops plus encoder inputs up to several hundred kHz. The 208-pin RQFP package exposes dedicated JTAG pins for in-system reconfiguration during commissioning, and in-circuit reconfigurability allows field firmware updates without powering down the machine.
Recommended
Telecommunications Interface Card
In telecom interface cards the EPF8820ARC208-24 acts as a protocol-bridging controller: 8K gates are sufficient to implement HDLC framing, E1/T1 time-slot assignment, and ATM SAR segmentation, while 152 I/O support parallel bus interfaces to framers and TDM backplanes. The 125 MHz internal toggle rate comfortably meets E1 (2.048 MHz), T1 (1.544 MHz) and STM-1/OC-3 (155 MHz) line-side rates when combined with external PHYs. JTAG-based configuration enables remote bitstream updates via the card-management microcontroller, and the exposed-pad 208-RQFP provides adequate thermal headroom for 5 V operation in sealed CO enclosures. Industrial-grade -24 speed grade timing is well matched to telecom card slot timing budgets.
Recommended
ASIC Prototyping and Emulation
The EPF8820ARC208-24 is frequently used to prototype and emulate sub-blocks of larger ASIC designs: 8K usable gates map cleanly onto typical peripheral controllers, DMA engines, and bus arbiters, while JTAG-based in-circuit reconfigurability allows rapid design iterations by reloading the bitstream in seconds. The 208-pin RQFP exposes enough I/O to break out a 32-bit processor bus plus interrupt and DMA handshakes, which is the typical minimum for a representative ASIC block. Designers can chain multiple EPF8820ARC208-24 devices on a single JTAG chain to emulate larger systems, leveraging identical timing across the -24 speed grade family. Quartus MAX+PLUS II design flow is well documented and supported for legacy IP reuse.
Recommended
Legacy Peripheral Bus Bridge
The EPF8820ARC208-24 is a natural fit for legacy bus-bridging functions between microprocessors, peripherals, and DSPs: 8K gates implement full master/target state machines for ISA, PC/104, or proprietary local buses, while 152 I/O provide ample address and data fan-out plus interrupt and DMA handshake signals. Its 5 V MultiVolt I/O directly drives 5 V peripheral chips without level translation, and the 125 MHz toggle rate supports ISA-style 8-25 MHz bus cycles plus standard asynchronous peripheral handshakes. JTAG in-system configuration allows the bridge personality (master vs target, address mapping) to be swapped in the field, which simplifies inventory for OEMs supporting multiple SKUs.
Recommended
Flat-Panel Display Controller
Flat-panel display controllers benefit from the EPF8820ARC208-24's high I/O count and register-rich architecture: 152 user I/O can simultaneously drive RGB data buses, control signals, and backlight PWM, while the 672 logic cells implement timing generators, gamma-correction lookup tables, and LVDS/TTL conversion logic. The 125 MHz toggle rate is sufficient for XGA (65 MHz pixel clock) and SXGA (108 MHz) panels when the design uses internal pipelined registers, and the -24 speed grade timing accommodates most commercial-grade LCD timing budgets. The 208-pin RQFP exposed pad provides sufficient thermal dissipation for sealed display enclosures. JTAG configuration allows panel-timing personality changes across product variants without hardware rework.
Recommended
Military and Aerospace Avionics Bus Interface
In avionics bus-interface applications the EPF8820ARC208-24 is used for MIL-STD-1553, ARINC 429, and discrete I/O conditioning: 8K gates implement protocol encoders/decoders and error-checking logic, while 152 I/O support parallel avionics databuses plus isolated discrete I/O channels. The -24 speed grade is well matched to ARINC 429's 100 kHz data rate and MIL-STD-1553's 1 MHz word rate, and the 208-pin RQFP package is available in extended-temperature grades suitable for avionics thermal profiles. JTAG-based reconfiguration supports BIT (Built-In Test) personality swaps, and the FLEX 8000 family's long heritage in military and aerospace programs provides the documentation and process pedigree required for DO-254 and MIL-HDBK-454 compliance reviews.
Recommended
Recommended Products Summary
Engineering reference data for EPF8820ARC208-24 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF8820ARC208-2 | EPF8820ARC208-4 | EPF8820AQC208-4 | EPF8820AQC208-3N |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | 208-pin RQFP (exposed pad) | 208-pin RQFP (exposed pad) - same | 208-pin RQFP (exposed pad) - same | 208-pin RQFP (exposed pad) - same | 208-pin RQFP (exposed pad) - same |
| Usable Gates | 8,000 | 8,000 | 8,000 | 8,000 | 8,000 |
| Logic Cells | 672 | 672 | 672 | 672 | 672 |
| User I/O | 152 | 152 | 152 | 152 | 152 |
| Speed Grade | -24 | -2 (faster) | -4 (slower) | -4 | -3 |
| Supply Voltage | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V |
| Process / Grade | 0.42 µm standard | 0.42 µm standard | 0.42 µm standard | 0.42 µm Q-grade (lower power) | 0.42 µm Q-grade (lower power) |
| Configuration PROM Compatibility | EPC1/EPC1064/EPC1213/EPC1441 | EPC1/EPC1064/EPC1213/EPC1441 | EPC1/EPC1064/EPC1213/EPC1441 | EPC1/EPC1064/EPC1213/EPC1441 | EPC1/EPC1064/EPC1213/EPC1441 |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Slowest available speed grade in the EPF8820A 208-RQFP family (vs EPF8820ARC208-2)
- Lower-power Q-process alternatives available in same package (vs EPF8820AQC208-4)
- Maximum available I/O count for the EPF8820 family (vs EPF8820ARC160-2 (160-pin RQFP))
Design Notes
The EPF8820ARC208-24 requires a tightly regulated 5 V supply (4.75 V to 5.25 V). Decouple VCCINT (core) and VCCIO (I/O bank) pins with 0.1 µF ceramic capacitors placed within 5 mm of each supply pin, plus a single 47 µF tantalum bulk capacitor per supply plane. Add a ferrite bead between the analog 5 V rail and the FPGA supply to suppress switching noise from neighbouring digital ICs. During configuration, Icc rises sharply (typically 200-300 mA peak for the -24 speed grade), so the regulator must source at least 500 mA without sagging below 4.75 V. Estimated: based on FLEX 8000 family ICC figures and standard decoupling practice; consult the datasheet for verified ICC values.
Solder the exposed thermal pad of the 208-pin RQFP package to a copper pour on the top layer, stitching it with at least 8 thermal vias (0.3 mm drill, 1.0 mm pitch) to an inner ground plane. Without this thermal pad connection, junction temperature can exceed 100 °C at full toggle frequency and ambient > 50 °C. Route all configuration signals (nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0) as short traces (< 50 mm) and keep them away from switching power lines. Provide a 4.7 kΩ pull-up on nCONFIG to VCCIO and a 4.7 kΩ pull-up on nSTATUS to VCCIO if not driven by the configuration PROM.
Do not leave MSEL[2:0] floating: these pins select the configuration mode (EPC1 vs parallel EPROM vs JTAG) and a floating MSEL can latch into an unsupported mode and prevent configuration. Connect them to VCC or GND via 1 kΩ resistors. Do not tie CONF_DONE low before power-up: this prevents configuration and is a common debugging pitfall. Always sequence the configuration PROM VCC and the FPGA VCCINT within 100 ms to avoid PROM corruption. Estimated: timing values are conservative defaults; verify against the FLEX 8000 datasheet configuration timing diagrams.
Compliance Information
Compliance status not confirmed in the provided FLEX 8000 datasheet excerpts. Original Altera FLEX 8000 family parts predate RoHS and may use tin-lead (SnPb) finish. For RoHS-compliant assembly, choose EPF8820AQC208-3N or EPF8820AQC208-2N variants (suffix 'N' typically denotes lead-free).
