EPF8820ATI144-1 - FLEX 8000 FPGA 8K Gates, 1.8ns, TQFP-144 | Altera
MPN: EPF8820ATI144-1 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $48 | $48.00 |
| 10 | $42.5 | $425.00 |
| 100 | $36 | $3,600.00 |
| 500 | $30.5 | $15,250.00 |
| 1,000 | $26 | $26,000.00 |
Drop-in alternatives for EPF8820ATI144-1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
EPF8820ATC144-1
β Drop-Inβ In Stock
$15.95 / Unit
View Datasheet βEPF8820ATC144-2
β Drop-Inβ In Stock
$19.85 / Unit
View Datasheet βEPF8636ATC144-1
β Drop-Inπ Reference alternative (not in catalog)
EPF8452ATC144-1
β Drop-Inπ Reference alternative (not in catalog)
EPF8820ATI144-1 Maximum Ratings & Electrical Characteristics
| Family | FLEX 8000 |
| Device | EPF8820A |
| Usable Gates | 8,200 |
| Logic Elements | 672 |
| Maximum I/O Pins | 112 |
| Dedicated Inputs | 4 |
| Package | TQFP-144 (TI144) 0.500 mm pitch |
| Propagation Delay (tpd) | 1.8 ns |
| Core Supply Voltage (VCCINT) | 3.0 V to 3.6 V |
| I/O Supply Voltage (VCCIO) | 3.0 V to 3.6 V (MultiVolt I/O supports 5.0 V) |
| Process Technology | 0.42 Β΅m CMOS EPROM |
| Operating Temperature | -40 Β°C to +85 Β°C (industrial) |
| Configuration | SRAM, in-system programmable via EPC configuration controller |
| Boundary Scan | IEEE 1149.1 JTAG compliant |
| RoHS Status | Unknown |
EPF8820ATI144-1 Pin Configuration
| Pin 1 | I/O β User I/O pin |
| Pin 2 | I/O β User I/O pin |
| Pin 3 | I/O β User I/O pin |
| Pin 4 | I/O β User I/O pin |
| Pin 5 | I/O β User I/O pin |
| Pin 6 | I/O β User I/O pin |
| Pin 7 | I/O β User I/O pin |
| Pin 8 | I/O β User I/O pin |
| Pin 9 | VCCINT β Core supply voltage (3.0-3.6 V) |
| Pin 10 | GND β Ground |
| Pin 11 | I/O β User I/O pin |
| Pin 12 | I/O β User I/O pin |
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| Pin 28 | I/O β User I/O pin |
| Pin 29 | I/O β User I/O pin |
| Pin 30 | VCCIO β I/O supply voltage (3.0-3.6 V) |
| Pin 31 | I/O β User I/O pin |
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| Pin 44 | GND β Ground |
| Pin 45 | I/O β User I/O pin |
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| Pin 59 | I/O β User I/O pin |
| Pin 60 | VCCINT β Core supply voltage (3.0-3.6 V) |
| Pin 61 | I/O β User I/O pin |
| Pin 62 | I/O β User I/O pin |
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| Pin 74 | I/O β User I/O pin |
| Pin 75 | I/O β User I/O pin |
| Pin 76 | GND β Ground |
| Pin 77 | nCONFIG β Configuration control (active low) |
| Pin 78 | nSTATUS β Configuration status (active low) |
| Pin 79 | CONF_DONE β Configuration done (open-drain) |
| Pin 80 | MSEL0 β Configuration mode select |
| Pin 81 | MSEL1 β Configuration mode select |
| Pin 82 | TCK β JTAG test clock |
| Pin 83 | TMS β JTAG test mode select |
| Pin 84 | TDI β JTAG test data in |
| Pin 85 | TDO β JTAG test data out |
| Pin 86 | CLK0 β Dedicated clock input |
| Pin 87 | CLK1 β Dedicated clock input |
| Pin 88 | CLK2 β Dedicated clock input |
| Pin 89 | CLK3 β Dedicated clock input |
| Pin 90 | DEDICATED IN β Dedicated high-speed input |
| Pin 91 | DEDICATED IN β Dedicated high-speed input |
| Pin 92 | DEDICATED IN β Dedicated high-speed input |
| Pin 93 | DEDICATED IN β Dedicated high-speed input |
| Pin 94 | I/O β User I/O pin |
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| Pin 103 | I/O β User I/O pin |
| Pin 104 | VCCIO β I/O supply voltage (3.0-3.6 V) |
| Pin 105 | I/O β User I/O pin |
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| Pin 119 | I/O β User I/O pin |
| Pin 120 | GND β Ground |
| Pin 121 | I/O β User I/O pin |
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| Pin 134 | I/O β User I/O pin |
| Pin 135 | I/O β User I/O pin |
| Pin 136 | VCCINT β Core supply voltage (3.0-3.6 V) |
| Pin 137 | I/O β User I/O pin |
| Pin 138 | I/O β User I/O pin |
| Pin 139 | I/O β User I/O pin |
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| Pin 143 | I/O β User I/O pin |
| Pin 144 | I/O β User I/O pin |
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
EPF8820ATI144-1 is suitable for 6 applications: Glue-Logic Consolidation in Industrial 5V/3.3V Systems, PCI Bus Interface Bridge, ASIC and Gate-Array Emulation, Telecom Line-Card Control Logic, Embedded Computing Backplanes, Legacy Industrial Control Replacement.
Glue-Logic Consolidation in Industrial 5V/3.3V Systems
The EPF8820ATI144-1 integrates discrete TTL/CMOS glue logic into a single FLEX 8000 FPGA, reducing board area and improving design flexibility. Its MultiVolt I/O buffer supports 5.0 V TTL inputs on a 3.3 V core, removing the need for level shifters when bridging legacy peripherals with modern processors. With 672 logic elements and 112 I/O pins, the device fits typical glue designs in industrial PLC backplanes, factory automation controllers, and motor-drive interface boards. Industrial temperature grade (-40 Β°C to +85 Β°C) ensures operation in factory floor environments.
Recommended
PCI Bus Interface Bridge
The EPF8820ATI144-1 is well-suited as a PCI 5V/3.3V bridge in legacy 32-bit PCI add-in cards and embedded systems. Its 80 MHz global clock and 1.8 ns tpd support the 33 MHz PCI clock domain, while MultiVolt I/O handles 5V PCI signaling with a 3.3V core. 112 user I/O pins are sufficient for multiplexed address/data and side-band signals (REQ#, GNT#, FRAME#, IRDY#, TRDY#). The IEEE 1149.1 JTAG interface eases board-level boundary-scan test of the bridge logic.
Recommended
ASIC and Gate-Array Emulation
The EPF8820ATI144-1 was widely used in the 1990s as a gate-array emulator for ASIC prototyping. Its SRAM-based programming allows designers to iterate logic changes in minutes rather than the weeks required for masked ASIC spins. The same TQFP-144 footprint is shared with the entire FLEX 8000 family, so engineers can migrate between EPF8282, EPF8452, EPF8636, and EPF8820 without PCB changes, using the highest-density member for final prototypes. This preserves form-factor across the design exploration phase.
Recommended
Telecom Line-Card Control Logic
In telecom line cards, the EPF8820ATI144-1 provides deterministic, low-latency control logic for T1/E1 framers, LIU interfaces, and protocol glue. The FLEX 8000 family's FastTrack continuous routing architecture delivers predictable timing paths, which is critical for backplane and serial-line control where worst-case delay must be bounded. Industrial temperature operation, 5V-tolerant I/O, and the small TQFP-144 package make it well-matched to compact line-card designs. The device is JTAG-readable for in-system diagnostics.
Recommended
Embedded Computing Backplanes
The EPF8820ATI144-1 functions as a bus arbiter, address decoder, or interrupt controller on VME, cPCI, and proprietary embedded backplanes. Its 112 I/O pins support multiplexed address/data plus control signals, while the 1.8 ns propagation delay maintains timing margins in 25β33 MHz backplanes. MultiVolt I/O interfaces cleanly with 3.3V processors and 5V peripheral memory. The TQFP-144 industrial-grade package handles the thermal and vibration stresses of industrial embedded enclosures.
Recommended
Legacy Industrial Control Replacement
Long-life industrial equipment (CNC machines, process controllers, railway signaling) requires replacement of failed EPF8820ATI144-1 parts to keep existing lines running. Independent distributors such as Jotrin and AIChipLink continue to inventory date-coded FLEX 8000 stock for maintenance, repair, and operations. The drop-in TQFP-144 compatibility with higher-density FLEX 8000 family members also allows an upgrade path on the same PCB: a defective EPF8820ATI144-1 can be swapped for an EPF8636ATC144-1 to add spare logic capacity.
Recommended
Recommended Products Summary
Engineering reference data for EPF8820ATI144-1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF8820ATC144-1 | EPF8820ATC144-2 | EPF8636ATC144-1 | EPF8452ATC144-1 |
|---|---|---|---|---|---|
| Package | TQFP-144 (TI144) 0.500 mm | TQFP-144 (TC144) 0.500 mm - same | TQFP-144 (TC144) 0.500 mm - same | TQFP-144 (TC144) 0.500 mm - same | TQFP-144 (TC144) 0.500 mm - same |
| Brand | Altera | Altera | Altera | Altera | Altera |
| Usable Gates | 8,200 | 8,200 (same) | 8,200 (same) | 36,000 (higher) | 4,000 (lower) |
| Logic Elements | 672 | 672 (same) | 672 (same) | [DATA_NEEDED] | [DATA_NEEDED] |
| Max User I/O | 112 | 112 (same) | 112 (same) | [DATA_NEEDED] | [DATA_NEEDED] |
| Speed Grade | -1 | -1 (same) | -2 (faster) | -1 | -1 |
| Operating Temperature | -40 C to +85 C (industrial) | 0 C to +70 C (commercial) | 0 C to +70 C (commercial) | 0 C to +70 C (commercial) | 0 C to +70 C (commercial) |
| Core Voltage (VCCINT) | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| MultiVolt 5V-tolerant I/O | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Highest density FLEX 8000 in TQFP-144 (vs EPF8636ATC144-1)
- Faster propagation delay option exists in same package (vs EPF8820ATC144-2)
- Lower-density FLEX 8000 alternative available for cost-down (vs EPF8452ATC144-1)
Design Notes
EPF8820ATI144-1 requires two rails: VCCINT (3.0-3.6 V) for the core logic and VCCIO (3.0-3.6 V) for the I/O banks. Place 0.1 Β΅F ceramic decoupling capacitors adjacent to every VCCINT and VCCIO pin, plus bulk 10-100 Β΅F tantalum or polymer capacitors on each rail. During configuration, inrush current can reach 100-300 mA on VCCINT; use a ramp-up regulator with monotonic output to avoid triggering partial configuration. Connect all GND pins to a low-impedance ground plane.
Distribute VCCINT, VCCIO, and GND pins evenly across the TQFP-144 land pattern. The dedicated CLK pins (CLK0-CLK3) and the four dedicated inputs must be routed as matched-length, controlled-impedance traces if used for high-speed capture (32-bit counters, SDDR). For MultiVolt I/O, group 5V and 3.3V signaling on separate banks and route accordingly. The JTAG chain (TCK, TMS, TDI, TDO) should be pulled to known states through 10 kohm resistors to avoid floating behavior at power-up.
Never connect VCCIO to 5 V even though the inputs are 5V-tolerant β only the inputs tolerate 5V, the output drivers are powered from VCCIO and must remain at 3.0-3.6 V. Also, the device is SRAM-based and loses configuration on power-down, so a non-volatile EPC configuration controller (e.g., EPC1441) is mandatory for production. Finally, MAX+PLUS II or Quartus II software (not Quartus Prime) is required because Quartus Prime has dropped FLEX 8000 support; use legacy toolchains for bitstream generation.
Estimated: at maximum toggle rate on all 112 I/O pins with a 50 pF load, dynamic power consumption can reach 1.5 W (estimated from typical FLEX 8000 values, not a datasheet figure). The TQFP-144 package has a typical theta_JA of around 45-55 C/W without airflow, so junction temperature rise is 70-85 C above ambient. For sustained high-toggle designs, add 200-300 LFM airflow or thermal copper-pour thermal vias below the exposed pad area (when not present, use a continuous ground plane under the package).
Compliance Information
RoHS, lead-free, and halogen-free status not stated in verified web data. This Altera FLEX 8000 device predates many modern compliance reporting standards and is supplied as obsolete stock.
