EPF8820ATI144-4 - FLEX 8000 FPGA, 672 LEs, 144-LQFP | Intel / Altera
MPN: EPF8820ATI144-4 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $95 | $95.00 |
| 10 | $85.5 | $855.00 |
| 100 | $76 | $7,600.00 |
| 500 | $68.4 | $34,200.00 |
| 1,000 | $61.75 | $61,750.00 |
Drop-in alternatives for EPF8820ATI144-4 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPF8820ATC144-4
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View Datasheet →EPF8636ATC144-4
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
EPF8820ATI144-4 Maximum Ratings & Electrical Characteristics
| Family | FLEX 8000 |
| Device Type | Loadable PLD / SRAM-based FPGA |
| Logic Elements | 672 |
| Logic Array Blocks (LABs) | 84 |
| User I/Os | 112 |
| Dedicated Inputs | 4 |
| Propagation Delay | 0.1 ns (typical) |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| I/O Signaling | 3.3 V and 5.0 V tolerant |
| Process Technology | 0.42 µm CMOS, SRAM-based |
| Configuration | EPROM-based, JTAG in-system programmable |
| Operating Temperature | -40 °C to +85 °C (industrial) |
| Package | 144-pin LQFP (Plastic Quad Flatpack, gull-wing) |
| Package Code | LFQFP |
| Mounting Type | Surface Mount |
EPF8820ATI144-4 lfqfp Pin Configuration Guide
Complete pinout information for EPF8820ATI144-4 (lfqfp package). 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 EPF8820ATI144-4.
Refer to the datasheet for full pin configuration.
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
EPF8820ATI144-4 is suitable for 7 applications: Bus Interface Bridging, Address Decoding and Chip Select Generation, Glue Logic Consolidation, State Machine Implementation, Peripheral Control in Industrial Controllers, Legacy 74-Series Logic Replacement, Mixed-Voltage System Bridging.
Bus Interface Bridging
Why EPF8820ATI144-4 fits bus-bridge designs: with 672 logic elements across 84 LABs and 112 user I/Os, this FLEX 8000 device can implement wide bus-width translators between legacy 8/16/32-bit peripherals and modern 32-bit processors. How it is used + performance: it sits between the processor bus and peripheral logic, latching address and data signals while running custom state machines; the 0.1 ns propagation delay enables transparent timing insertion without adding wait states, and 3.3 V/5 V tolerant I/O directly interfaces 5 V peripherals without level shifters.
Recommended
Address Decoding and Chip Select Generation
Why EPF8820ATI144-4 fits address decoding: the 84 LABs provide ample capacity for multi-bank chip-select decoding across 24-bit address spaces, while each LE's 4-input LUT efficiently implements any Boolean decode function. How it is used + performance: the device replaces discrete 74-series decoder gates with a single programmable chip, freeing board space and reducing BOM count; predictable FastTrack interconnect delays let designers meet setup/hold requirements without manual retiming, and JTAG in-system programming allows last-minute decode map changes during prototyping.
Recommended
Glue Logic Consolidation
Why EPF8820ATI144-4 fits glue-logic consolidation: with 672 LEs the device absorbs the function of dozens of 74-series TTL/CMOS packages, dramatically shrinking PCB area and assembly cost. How it is used + performance: discrete AND/OR/XOR gates, flip-flops, and latches are mapped into LE LUTs and registers; industrial -40 °C to +85 °C operation lets the same design deploy in factory-floor cabinets, and the 144-LQFP package keeps the part hand-solderable for prototyping.
Recommended
State Machine Implementation
Why EPF8820ATI144-4 fits state-machine designs: each LAB's 8 LEs with carry chains support large FSMs with up to hundreds of states, while the SRAM-based configuration supports unlimited in-system re-programming via JTAG. How it is used + performance: control logic for industrial controllers (e.g. washing machines, vending machines, conveyor sorters) is captured as HDL, synthesized, and loaded at power-up; the 0.1 ns propagation delay supports deterministic state transitions even at high event rates, and 5 V tolerant I/O drives power FETs and relays directly.
Recommended
Peripheral Control in Industrial Controllers
Why EPF8820ATI144-4 fits industrial peripheral control: 112 user I/Os provide sufficient channels to drive LCDs, keypads, relays, and sensor arrays directly, while industrial temperature operation ensures reliability in unconditioned environments. How it is used + performance: the device acts as a programmable front-end controller interfacing between a host processor and local peripherals; JTAG in-system programmability enables field firmware updates, and the FLEX 8000 architecture's predictable timing simplifies IEC 61131-style functional safety verification.
Recommended
Legacy 74-Series Logic Replacement
Why EPF8820ATI144-4 fits legacy-logic replacement: the device emulates dozens of discrete 74LS/74HC/74F chips in a single footprint, simplifying board layout and reducing component count. How it is used + performance: legacy 5 V TTL boards with multiple decoder, mux, and flip-flop packages are redesigned with one FLEX 8000 device; the 5 V tolerant I/O eliminates level-shifter circuitry, and JTAG programming preserves the original design's functional behavior while reducing power consumption by an order of magnitude.
Recommended
Mixed-Voltage System Bridging
Why EPF8820ATI144-4 fits mixed-voltage designs: the device's 3.3 V core with 5 V tolerant I/Os lets it bridge 5 V legacy peripherals to 3.3 V processors without external level shifters, simplifying board design. How it is used + performance: the FLEX 8000 PLD sits on the boundary between voltage domains, capturing 5 V inputs and re-driving 3.3 V outputs (or vice versa); the industrial temperature range supports outdoor and factory-floor deployments, while JTAG-based configuration supports late-stage BOM changes.
Recommended
Recommended Products Summary
Engineering reference data for EPF8820ATI144-4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF8820ATC144-4 | EPF8820ATC144-4N | EPF8820ATI144-3 | EPF8820ATI144-3N | EPF8820ATI144-2 |
|---|---|---|---|---|---|---|
| Brand | Intel (formerly Altera) | Intel | Intel | Intel | Intel | Intel |
| Package | 144-LQFP (LFQFP) | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same |
| Logic Elements | 672 | 672 | 672 | 672 | 672 | 672 |
| LABs | 84 | 84 | 84 | 84 | 84 | 84 |
| User I/Os | 112 | 112 | 112 | 112 | 112 | 112 |
| Speed Grade | -4 | -4 | -4 | -3 | -3 | -2 |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Lead-Free Finish | Unknown | Unknown | Yes (N suffix) | Unknown | Yes (N suffix) | Unknown |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Wide 3.3 V/5 V tolerant I/O without external level shifters (vs EPF8636ATC144-4)
- Higher logic density in the same 144-LQFP footprint vs older FLEX 8000 members (vs EPF8282ATC100-4)
- Industrial temperature grade for harsh-environment deployment (vs EPF8820ATC144-4 (commercial grade))
Design Notes
Estimated: at 3.3 V VCCINT and typical FLEX 8000 ICCINT of ~50 mA quiescent plus I/O switching current, the EPF8820ATI144-4 draws roughly 200 mA-500 mA total depending on toggle rate. Decouple each VCCINT/VCCIO pair with a 0.1 µF ceramic capacitor placed within 5 mm of the package pin, plus a bulk 10 µF tantalum capacitor on each supply rail. Add a ferrite bead between the 3.3 V core supply and the I/O supply to suppress switching noise from coupling into sensitive analog circuits.
The 144-LQFP package has a theta_JA of approximately 50 °C/W (estimated from package geometry, exact value should be confirmed from the FLEX 8000 datasheet). At 500 mA total current and 3.3 V supply, worst-case dissipation is ~1.65 W, yielding a junction temperature rise of ~82 °C above ambient. In enclosed industrial cabinets, provide at least 200 LFM of airflow or attach a small clip-on heatsink to keep Tj below 125 °C. Industrial temperature grade parts must keep Tj below 85 °C ambient, so thermal design margin is critical.
Route all JTAG signals (TCK, TMS, TDI, TDO, TRST) with 50 Ω controlled impedance and keep total stub lengths under 25 mm to avoid signal-integrity issues at the JTAG clock frequency. Place the configuration EEPROM (EPC1, EPC2) within 50 mm of the device's DATA0/DCLK/nCONFIG pins to meet setup/hold timing. Reserve a 4-pin header for JTAG access so field firmware updates can be performed without removing the board from its enclosure.
Critical pitfalls to avoid: (1) Do not confuse the EPF8820ATI144-4 with the EPF8820ATC144-4 if your design must operate below 0 °C; the ATC variant is commercial grade and will fail in industrial environments. (2) Do not assume FLEX 8000 pinout portability across package types - the 144-LQFP, 208-RQFP, and 240-RQFP variants assign I/O pins differently. (3) Do not exceed 5.0 V on any I/O pin even in 3.3 V mode - although the bank is 5 V tolerant, absolute-maximum ratings still apply.
Recommended PCB layout practices for FLEX 8000 devices: use a solid ground plane on layer 2 to provide a low-impedance return path for high-speed I/O signals; route clock and JTAG signals on the top layer with continuous ground reference; keep I/O traces shorter than 50 mm to avoid reflections; and place decoupling capacitors on the same layer as the device with vias directly to the power plane. Maintain at least 3W spacing between parallel high-speed traces to minimize crosstalk.
Compliance Information
Compliance status for EPF8820ATI144-4 not explicitly stated in the verified web data; the lead-free N-suffix variants (e.g. EPF8820ATI144-3N, EPF8820ATC144-4N) imply RoHS-compatible assembly finish, but the base ATI part marking should be verified against the lot-specific manufacturer documentation.
