EPF8820ATI144-4N - 672-LE FLEX 8000 FPGA, 144-LQFP | Altera
MPN: EPF8820ATI144-4N β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $15.75 | $157.50 |
| 100 | $12.4 | $1,240.00 |
| 500 | $9.95 | $4,975.00 |
| 1,000 | $8.2 | $8,200.00 |
Drop-in alternatives for EPF8820ATI144-4N β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPF8820ATC144-4N
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View Datasheet βEPF8820ATI144-4
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View Datasheet βEPF8820ATI144-2N
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View Datasheet βEPF8820ATC144-4
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View Datasheet βEPF8820ATI144-4N Maximum Ratings & Electrical Characteristics
| Product Type | Field-Programmable Gate Array (FPGA) |
| Series | FLEX 8000 |
| Logic Elements (LEs) | 672 |
| Logic Array Blocks (LABs) | 84 |
| LEs per LAB | 8 |
| Propagation Delay | 0.1 ns |
| I/O Voltage Support | 3.3 V and 5 V (configurable) |
| Configuration Memory | SRAM (volatile, reload on power-up) |
| Configuration Methods | Parallel EPROM, Altera serial (EPC1/EPC1064/EPC1213/EPC1441), or system controller |
| Package Type | 144-LQFP (LFQFP, Plastic Quad Flat Pack, gull-wing) |
| Pin Count | 144 |
| Terminal Form | Gull Wing (Surface Mount) |
| Package Code | LFQFP |
| Temperature Grade | Industrial |
| Terminal Finish | Lead-free (Pb-free) - indicated by 'N' suffix |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
| Architecture | 4-input LUT-based SRAM FPGA with FastTrack interconnect |
EPF8820ATI144-4N Pin Configuration
| Pin 1 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 2 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 3 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 4 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 5 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 6 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 7 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 8 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 9 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 10 | VCCIO β I/O supply voltage (3.3V or 5V) |
| Pin 11 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 12 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 13 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 14 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 15 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 16 | GND β Ground |
| Pin 17 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 18 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 19 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 20 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 21 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 22 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 23 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 24 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 25 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 26 | VCC β Core supply voltage (5V) |
| Pin 27 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 28 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 29 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 30 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 31 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 32 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 33 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 34 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 35 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 36 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 37 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 38 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 39 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 40 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 41 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 42 | GND β Ground |
| Pin 43 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 44 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 45 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 46 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 47 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 48 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 49 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 50 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 51 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 52 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 53 | VCCIO β I/O supply voltage (3.3V or 5V) |
| Pin 54 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 55 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 56 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 57 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 58 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 59 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 60 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 61 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 62 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 63 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 64 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 65 | GND β Ground |
| Pin 66 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 67 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 68 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 69 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 70 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 71 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 72 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 73 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 74 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 75 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 76 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 77 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 78 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 79 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 80 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 81 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 82 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 83 | VCC β Core supply voltage (5V) |
| Pin 84 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 85 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 86 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 87 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 88 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 89 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 90 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 91 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 92 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 93 | GND β Ground |
| Pin 94 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 95 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 96 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 97 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 98 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 99 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 100 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 101 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 102 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 103 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 104 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 105 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 106 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 107 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 108 | VCCIO β I/O supply voltage (3.3V or 5V) |
| Pin 109 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 110 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 111 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 112 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 113 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 114 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 115 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 116 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 117 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 118 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 119 | GND β Ground |
| Pin 120 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 121 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 122 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 123 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 124 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 125 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 126 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 127 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 128 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 129 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 130 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 131 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 132 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 133 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 134 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 135 | VCC β Core supply voltage (5V) |
| Pin 136 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 137 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 138 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 139 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 140 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 141 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 142 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 143 | I/O β User I/O pin (configurable 3.3V/5V) |
| Pin 144 | I/O β User I/O pin (configurable 3.3V/5V) |
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
EPF8820ATI144-4N is suitable for 6 applications: Legacy Industrial Control Glue Logic, ISA / PC/104 / VME Bus Interface Bridging, ASIC Prototyping and Design Verification, Telecommunications Backplane Interfacing, Displacement of Discrete 74-Series Logic Packages, Education and FPGA Design Training.
Legacy Industrial Control Glue Logic
The EPF8820ATI144-4N is widely deployed as glue-logic replacement in legacy industrial control systems originally built around Altera's FLEX 8000 family. Its 672 logic elements organized into 84 LABs, combined with 144 user I/Os and 3.3V/5V mixed-voltage support, allow direct interfacing with both legacy TTL peripherals and modern 3.3V ASICs without external level shifters. The 0.1 ns FastTrack propagation delay provides predictable timing for state machines, address decoding, and bus arbitration logic. Its industrial temperature grade (-40C to +85C) makes it suitable for factory-floor and outdoor equipment enclosures. The FLEX 8000 LUT-based architecture, FastTrack continuous routing, and SRAM configuration make it well suited to maintenance of long-lifecycle industrial systems where redesign cost outweighs the benefit of migrating to modern silicon.
Recommended
ISA / PC/104 / VME Bus Interface Bridging
The EPF8820ATI144-4N was commonly used in legacy ISA, PC/104, and VME bus interface cards to bridge between incompatible bus standards. Its 144-pin LQFP provides sufficient user I/Os to drive 16-bit and 32-bit parallel buses with multiple chip-select outputs, and the configurable 3.3V/5V I/O banks allow direct connection to both 5V ISA slots and 3.3V peripheral ASICs. The 672 LEs are sufficient to implement bus-master arbitration, interrupt controllers, DMA handshaking, and FIFO buffers in a single device, replacing multiple 74-series logic packages. The 0.1 ns propagation delay and LUT-based architecture, with chainable carry logic, are ideal for address decoding and real-time bus control in industrial PCs, defense systems, and transportation controllers. Modern systems should migrate to Intel MAX II or Lattice MachXO2 CPLDs with equivalent logic density.
Recommended
ASIC Prototyping and Design Verification
The EPF8820ATI144-4N served as a cost-effective ASIC prototyping vehicle in the late 1990s and early 2000s, allowing designers to validate RTL designs before committing to mask tooling. Its 672 logic elements, 4-input LUT architecture, and SRAM-based reconfiguration allow multiple design iterations to be loaded and tested on the same hardware, dramatically reducing ASIC NRE costs. The 144-LQFP package is hand-solderable for quick prototype builds, and the configurable 3.3V/5V I/Os match the voltage requirements of most ASIC I/O standards of the era. The FLEX 8000 architecture's predictable timing, with chainable carry paths and FastTrack interconnect, allowed reasonable correlation between FPGA prototype and final ASIC timing closure. Today, modern ASIC prototyping uses larger FPGAs like Xilinx Virtex or Intel Stratix, but the EPF8820 remains in service for legacy IP validation and education.
Recommended
Telecommunications Backplane Interfacing
The EPF8820ATI144-4N was used in telecommunications backplane equipment to interface between legacy E1/T1 framers, HDLC controllers, and TDM switches. Its 144 user I/Os support multiple 8-bit parallel TDM streams with framing, clock-recovery, and error-detection logic implemented in the 672 logic elements. The configurable 3.3V/5V I/O voltage banks are essential for mixed-voltage telecom line cards, and the industrial temperature grade ensures operation in unconditioned central-office environments. The 0.1 ns propagation delay through the FastTrack interconnect, combined with chainable carry logic for counters and CRC generators, supports real-time bit-rate adaptation and buffer management. Modern telecom designs have migrated to Freescale (NXP) PowerQUICC or Intel Cyclone FPGAs, but the EPF8820 still ships in long-lifecycle defense and railway signaling equipment.
Recommended
Displacement of Discrete 74-Series Logic Packages
The EPF8820ATI144-4N can replace 20-30 discrete 74-series TTL or HC logic packages in a typical design, reducing PCB area, BOM cost, and assembly time. Its 672 logic elements (organized into 84 LABs) and 144 user I/Os provide ample headroom to consolidate address decoders, bus transceivers, parity generators, interrupt controllers, and glue logic into a single LQFP-144 package. The configurable 3.3V/5V I/Os allow direct interface with both legacy 5V TTL peripherals and modern 3.3V CMOS components, eliminating the need for level-shifters. The FLEX 8000 architecture's chainable carry paths and 0.1 ns propagation delay allow efficient implementation of arithmetic functions, counters, and comparators that would otherwise require dedicated MSI ICs. This consolidation benefit is most valuable in cost-sensitive industrial and consumer designs with long product lifecycles.
Recommended
Education and FPGA Design Training
The EPF8820ATI144-4N appears in university and corporate training curricula because of its relatively simple FLEX 8000 architecture and well-documented legacy toolchain (Altera MAX+PLUS II and Quartus II). Students learning VHDL or Verilog design can implement complete processors, peripherals, and digital-signal-processing pipelines within the 672 logic elements. The 144-LQFP package is breadboard-friendly when used with carrier boards, and the SRAM configuration allows instant design reloading during lab exercises. The 3.3V/5V configurable I/Os allow interface experiments with both vintage TTL logic kits and modern microcontrollers. Despite being obsolete for new commercial designs, the EPF8820 remains a valuable pedagogical tool for teaching LUT-based FPGA fundamentals, FastTrack routing, and SRAM configuration concepts that apply to all modern FPGA families from Intel, Xilinx, Lattice, and Microsemi (Microchip).
Recommended
Recommended Products Summary
Engineering reference data for EPF8820ATI144-4N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF8820ATC144-4N | EPF8820ATI144-4 | EPF8820ATI144-3N | EPF8820ATI144-2N |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | 144-LQFP (LFQFP) | 144-LQFP (LFQFP) - same | 144-LQFP (LFQFP) - same | 144-LQFP (LFQFP) - same | 144-LQFP (LFQFP) - same |
| Logic Elements | 672 | 672 - same | 672 - same | 672 - same | 672 - same |
| Logic Array Blocks (LABs) | 84 | 84 - same | 84 - same | 84 - same | 84 - same |
| Speed Grade | -4 (fastest) | -4 (same, fastest) | -4 (same, fastest) | -3 (slower by 1 step) | -2 (slowest, 2 steps slower) |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial (-40C to +85C) - same | Industrial (-40C to +85C) - same | Industrial (-40C to +85C) - same |
| Terminal Finish | Lead-free (Pb-free) | Lead-free (Pb-free) - same | Leaded (SnPb) | Lead-free (Pb-free) - same | Lead-free (Pb-free) - same |
| Propagation Delay | 0.1 ns | 0.1 ns - same | 0.1 ns - same | [DATA_NEEDED: spec for speed grade -3] | [DATA_NEEDED: spec for speed grade -2] |
| I/O Voltage Support | 3.3V and 5V | 3.3V and 5V - same | 3.3V and 5V - same | 3.3V and 5V - same | 3.3V and 5V - same |
| Configuration Memory | SRAM (volatile) | SRAM (volatile) - same | SRAM (volatile) - same | SRAM (volatile) - same | SRAM (volatile) - same |
| Architecture | FLEX 8000 (4-input LUT) | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same |
Key Differentiators
- Lead-free / RoHS-compliant terminal finish (vs EPF8820ATI144-4)
- Fastest speed grade available in the family (vs EPF8820ATI144-3N)
- Industrial temperature grade for harsh environments (vs EPF8820ATC144-4N)
Design Notes
The EPF8820ATI144-4N requires both a 5V core supply (VCC) and a 3.3V or 5V I/O supply (VCCIO). According to the FLEX 8000 datasheet, VCC pins (5V core) and VCCIO pins must be decoupled with 0.1uF ceramic capacitors placed within 5mm of each supply pin, plus a bulk 10-47uF tantalum or electrolytic capacitor per supply rail. During SRAM configuration at power-up, the device draws higher inrush current; ensure the 5V regulator can supply at least 200mA peak. Power sequencing is not required - VCC and VCCIO may be applied simultaneously.
The 144-LQFP (LFQFP) package has 0.5mm pitch gull-wing leads. According to standard surface-mount guidelines for LQFP packages, PCB land pads should be 1.5mm x 0.3mm with a 1.6mm pitch (IPC-7351 nominal). Use a 4-layer PCB with a continuous ground plane beneath the device to control impedance and provide thermal dissipation. Hand-soldering is possible with a fine-tip iron and flux but reflow soldering is strongly recommended for production volumes.
The EPF8820ATI144-4N uses volatile SRAM configuration and loses its bitstream when power is removed. Always pair the device with an EPC-series configuration PROM (EPC1, EPC1064, EPC1213, or EPC1441) for automatic boot-up. Do not attempt to use this device in a 'blank' state expecting preloaded configuration - it will not function without external configuration data. Also note the 'N' suffix indicates lead-free finish; do not substitute the non-N (leaded) variant in RoHS-compliant end products.
Although FLEX 8000 is a legacy family with relaxed speed requirements compared to modern FPGAs, the configurable 3.3V/5V I/O banks still require attention to signal integrity. Series-termination resistors (22-33 ohm) are recommended for output traces longer than 50mm to control overshoot/undershoot. For mixed-voltage designs, group 3.3V and 5V signals in separate I/O banks to avoid back-powering through I/O pins when one supply is off.
Compliance Information
RoHS compliant per 'N' suffix indicating lead-free terminal finish. AEC-Q100 not applicable - this is a legacy commercial/industrial FPGA not qualified for automotive applications. REACH and halogen-free status not stated in the verified data.
