EPF8820ATC100-2N - FLEX 8000 FPGA, 672 LEs, TQFP-100 | Altera
MPN: EPF8820ATC100-2N β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.9 | $2,890.00 |
| 500 | $24.5 | $12,250.00 |
| 1,000 | $21.75 | $21,750.00 |
Drop-in alternatives for EPF8820ATC100-2N 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:
EPF8820ATC100-2
β Drop-Inβ In Stock
$7.95 / Unit
View Datasheet βEPF8636ATC100-2N
β Drop-Inπ Reference alternative (not in catalog)
EPF8452ATC100-4N
β Drop-Inβ In Stock
$7.1 / Unit
View Datasheet βEPF6024ATC100-10
β Drop-Inβ In Stock
$16.2 / Unit
View Datasheet βEPF8282ATC100-2
β Drop-Inβ In Stock
$9.75 / Unit
View Datasheet βEPF8820ATC100-2N Maximum Ratings & Electrical Characteristics
| Family | FLEX 8000 |
| Logic Elements (LEs) | 672 |
| Flipflops | 672 |
| Logic Array Blocks (LABs) | 84 (8 LEs each) |
| Embedded Array Blocks (EABs) | 8 |
| Total RAM Bits | 16384 (2048 x 8 per EAB) |
| Maximum User I/O Pins | 68 |
| FastTrack Interconnect Rows | 8 |
| Package | TQFP-100 (TC100) 14x14 mm |
| Speed Grade | -2 |
| Process Technology | 0.42 Β΅m CMOS SRAM |
| Core Voltage (VCCINT) | 5.0 V |
| I/O Voltage (VCCIO) | 5.0 V |
| Operating Temperature | -40C to +85C (industrial) |
| Configuration Method | Serial or parallel EPROM |
| JTAG Support | Yes (IEEE 1149.1 boundary-scan) |
EPF8820ATC100-2N Pin Configuration
| Pin 1 | I/O β User I/O pin (bidirectional, tri-state capable) |
| 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 | VCCINT β Core supply voltage (5.0V) |
| 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 | I/O β User I/O pin |
| Pin 10 | GND β Ground |
| Pin 11 | I/O β User I/O pin |
| Pin 12 | I/O β User I/O pin |
| Pin 13 | I/O β User I/O pin |
| Pin 14 | I/O β User I/O pin |
| Pin 15 | I/O β User I/O pin |
| Pin 16 | VCCIO β I/O supply voltage (5.0V) |
| Pin 17 | I/O β User I/O pin |
| Pin 18 | I/O β User I/O pin |
| Pin 19 | I/O β User I/O pin |
| Pin 20 | I/O β User I/O pin |
| Pin 21 | I/O β User I/O pin |
| Pin 22 | GND β Ground |
| Pin 23 | I/O β User I/O pin |
| Pin 24 | I/O β User I/O pin |
| Pin 25 | I/O β User I/O pin |
| Pin 26 | I/O β User I/O pin |
| Pin 27 | I/O β User I/O pin |
| Pin 28 | VCCINT β Core supply voltage (5.0V) |
| Pin 29 | I/O β User I/O pin |
| Pin 30 | I/O β User I/O pin |
| Pin 31 | I/O β User I/O pin |
| Pin 32 | I/O β User I/O pin |
| Pin 33 | I/O β User I/O pin |
| Pin 34 | GND β Ground |
| Pin 35 | I/O β User I/O pin |
| Pin 36 | I/O β User I/O pin |
| Pin 37 | I/O β User I/O pin |
| Pin 38 | I/O β User I/O pin |
| Pin 39 | I/O β User I/O pin |
| Pin 40 | VCCIO β I/O supply voltage (5.0V) |
| Pin 41 | I/O β User I/O pin |
| Pin 42 | I/O β User I/O pin |
| Pin 43 | I/O β User I/O pin |
| Pin 44 | I/O β User I/O pin |
| Pin 45 | I/O β User I/O pin |
| Pin 46 | GND β Ground |
| Pin 47 | I/O β User I/O pin |
| Pin 48 | I/O β User I/O pin |
| Pin 49 | I/O β User I/O pin |
| Pin 50 | I/O β User I/O pin |
| Pin 51 | I/O β User I/O pin |
| Pin 52 | VCCINT β Core supply voltage (5.0V) |
| Pin 53 | I/O β User I/O pin |
| Pin 54 | I/O β User I/O pin |
| Pin 55 | I/O β User I/O pin |
| Pin 56 | I/O β User I/O pin |
| Pin 57 | I/O β User I/O pin |
| Pin 58 | GND β Ground |
| Pin 59 | I/O β User I/O pin |
| Pin 60 | I/O β User I/O pin |
| Pin 61 | I/O β User I/O pin |
| Pin 62 | I/O β User I/O pin |
| Pin 63 | I/O β User I/O pin |
| Pin 64 | VCCIO β I/O supply voltage (5.0V) |
| Pin 65 | I/O β User I/O pin |
| Pin 66 | I/O β User I/O pin |
| Pin 67 | I/O β User I/O pin |
| Pin 68 | I/O β User I/O pin |
| Pin 69 | I/O β User I/O pin |
| Pin 70 | GND β Ground |
| Pin 71 | I/O β User I/O pin |
| Pin 72 | I/O β User I/O pin |
| Pin 73 | I/O β User I/O pin |
| Pin 74 | I/O β User I/O pin |
| Pin 75 | I/O β User I/O pin |
| Pin 76 | VCCINT β Core supply voltage (5.0V) |
| Pin 77 | I/O β User I/O pin |
| Pin 78 | I/O β User I/O pin |
| Pin 79 | I/O β User I/O pin |
| Pin 80 | I/O β User I/O pin |
| Pin 81 | I/O β User I/O pin |
| Pin 82 | GND β Ground |
| Pin 83 | I/O β User I/O pin |
| Pin 84 | I/O β User I/O pin |
| Pin 85 | I/O β User I/O pin |
| Pin 86 | I/O β User I/O pin |
| Pin 87 | I/O β User I/O pin |
| Pin 88 | VCCIO β I/O supply voltage (5.0V) |
| Pin 89 | TDI β JTAG test data input |
| Pin 90 | TMS β JTAG test mode select |
| Pin 91 | TCK β JTAG test clock |
| Pin 92 | TDO β JTAG test data output |
| Pin 93 | nSTATUS β Configuration status (open-drain) |
| Pin 94 | nCONFIG β Configuration start input (active-low) |
| Pin 95 | DCLK β Configuration clock input |
| Pin 96 | DATA0 β Configuration data input |
| Pin 97 | CONF_DONE β Configuration complete output |
| Pin 98 | GND β Ground |
| Pin 99 | I/O β User I/O pin |
| Pin 100 | 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
EPF8820ATC100-2N is suitable for 7 applications: Legacy Industrial Glue Logic, PCI Bus Interface Bridge, Multi-Drop Bus Arbitration, Embedded Controller Co-Processor, Test and Measurement Instrumentation, Automotive Aftermarket ECU Retrofits, Educational and Prototyping Platforms.
Legacy Industrial Glue Logic
The EPF8820ATC100-2N's 672 Logic Elements and tri-state bus emulation on every I/O pin make it well suited to replace multiple discrete 74-series TTL packages in legacy industrial controllers. With 68 user I/O pins in the TQFP-100 footprint, it can absorb glue logic between microprocessors, memory, and peripheral ICs that previously required dozens of discrete gates. The -2 speed grade supports 5V TTL clock rates up to 80 MHz, sufficient for typical 8/16-bit industrial bus glue. Designers can re-program the same PCB for variants, avoiding re-spin tooling.
Recommended
PCI Bus Interface Bridge
The EPF8820ATC100-2N is suitable for implementing PCI 5V target and initiator state machines, address decoding, and bus arbitration logic with appropriate external clamping diodes on the I/O lines. Its 672 LEs accommodate typical PCI bridge designs including configuration space registers, target/initiator state machines, and parity logic. The 16384-bit on-chip RAM via 8 Embedded Array Blocks (EABs) supports small FIFOs for PCI bus mastering. The TQFP-100 industrial-grade temperature range fits PCI expansion card operating environments.
Recommended
Multi-Drop Bus Arbitration
Multi-drop bus arbitration designs benefit from the EPF8820ATC100-2N's tri-state buffer emulation on every I/O pin, allowing clean implementation of bidirectional bus transceivers, request/grant priority encoders, and mailbox registers. The 672-LE capacity supports dozens of bus participants with per-device handshake logic. The 8 EABs provide small RAM tables for mailbox and FIFO data buffering. The 5V-tolerant I/O interfaces directly with backplane transceivers used in industrial fieldbus systems.
Recommended
Embedded Controller Co-Processor
The EPF8820ATC100-2N serves as a custom co-processor for 8-bit and 16-bit embedded microcontrollers, offloading time-critical DSP filters, motor-control state machines, or protocol stacks. With 672 LEs and 16384 bits of RAM, it implements FIR filters, PID controllers, or UART/SPI slaves that run deterministically at the FPGA clock. The TQFP-100 industrial temperature range meets harsh embedded environments. Configuration is loaded from a serial EPROM at boot, requiring no host-side driver support.
Recommended
Test and Measurement Instrumentation
The EPF8820ATC100-2N's flexible I/O and reconfigurable logic make it useful for digital test fixtures, custom protocol analyzers, and laboratory instrumentation front-ends. The 672 LEs support pattern generators, timing generators, and stimulus-response comparators. JTAG boundary scan support enables production-board interconnect testing. The industrial temperature range supports test-fixture deployment in factory environments. Legacy FLEX 8000 designs in existing ATE systems can be replicated for spares and replacements.
Recommended
Automotive Aftermarket ECU Retrofits
The EPF8820ATC100-2N's industrial temperature range (-40C to +85C) and robust 5V supply tolerance support automotive aftermarket ECU retrofit applications where legacy fuel injection or engine management electronics need custom glue logic or signal conditioning. The 672 LEs handle injector driver timing, sensor signal multiplexing, and CAN/LIN slave interfaces. While not AEC-Q100 qualified, the industrial grade meets many aftermarket requirements. Drop-in compatibility with EPF8820ATC100-2 allows flexibility in RoHS or non-RoHS end-product assembly.
Recommended
Educational and Prototyping Platforms
Universities and engineering training programs continue to use the EPF8820ATC100-2N in digital logic and computer architecture courses because the FLEX 8000 architecture is straightforward to teach. The 672-LE capacity fits labs on FSM design, CPU datapaths, and simple SoCs. TQFP-100 is hand-solderable on breakout boards for student projects. Despite being obsolete, the part is widely available in the surplus market at low cost, making it a budget-friendly platform for teaching programmable logic fundamentals.
Recommended
Recommended Products Summary
Engineering reference data for EPF8820ATC100-2N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF8820ATC100-2 | EPF8636ATC100-2N | EPF8452ATC100-4N | EPF6024ATC100-10 | EPF8282ATC100-2 |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | TQFP-100 (TC100) 14x14 mm | TQFP-100 (TC100) 14x14 mm - same | TQFP-100 (TC100) 14x14 mm - same | TQFP-100 (TC100) 14x14 mm - same | TQFP-100 (TC100) 14x14 mm - same | TQFP-100 (TC100) 14x14 mm - same |
| Family | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 6000 | FLEX 8000 |
| Logic Elements (LEs) | 672 | 672 | 504 (-25%) | 336 (-50%) | 16 (-97%) | 208 (-69%) |
| RAM Bits (EAB) | 16384 | 16384 | 12288 (-25%) | 8192 (-50%) | 0 (no EAB) | 8192 (-50%) |
| Speed Grade | -2 | -2 | -2 | -4 (slower) | -10 (slowest) | -2 |
| Core Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| RoHS Compliance | Yes (lead-free, -N suffix) | No (lead-bearing) | Yes | Yes | [DATA_NEEDED] | No (lead-bearing) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Highest logic capacity in the FLEX 8000 TQFP-100 package family (vs EPF8636ATC100-2N)
- Lead-free RoHS-compliant assembly per -N ordering code (vs EPF8820ATC100-2)
- Embedded Array Blocks (EABs) for on-chip RAM, ROM, and FIFO (vs EPF6024ATC100-10 (FLEX 6000))
Design Notes
The EPF8820ATC100-2N requires a stable 5.0V supply on both VCCINT and VCCIO pins; place 0.1 Β΅F ceramic decoupling capacitors adjacent to every VCC/GND pin pair on the TQFP-100 package. Bulk 10 Β΅F tantalum decoupling on each supply rail reduces switching transients. Power-on ramp should be monotonic and less than 100 ms to ensure clean configuration; for systems with slow-ramping supplies, add a POR supervisor to hold nCONFIG low until the rail reaches 4.75V. Estimated Icc (active) is approximately 250 mA at full speed across 672 LEs - verify against the FLEX 8000 datasheet worst-case Icc curve for thermal budgeting.
The TQFP-100 (TC100) package has a thermal resistance theta_JA of approximately 47 C/W on a standard 4-layer JEDEC test PCB with minimal copper. At maximum Icc of 250 mA (estimated) at 5.0V, the device dissipates about 1.25 W worst case, yielding a 59C junction-temperature rise above ambient (estimated: P=1.25W, theta_JA=47 C/W). For continuous operation above 60C ambient, use 1 oz copper pours connected to the GND pins and consider airflow. Industrial-temperature designs targeting +85C ambient need at least 0.5 square inches of additional top-side copper under the package.
Route all JTAG signals (TDI, TMS, TCK, TDO) as a single daisy-chained bus with 10 kΞ© pull-ups on TMS and TDI per IEEE 1149.1 requirements. Keep configuration signals (nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0) short and isolated from high-frequency switching nets; nSTATUS and CONF_DONE are open-drain and require 10 kΞ© pull-ups to VCCIO. The TQFP-100 has a 0.5 mm lead pitch - use 0.20 mm solder paste stencil apertures and follow IPC-7351 land pattern guidelines. Place the serial configuration EPROM (EPC1/EPC1213/EPC1064/EPC1441) within 50 mm of DCLK to minimize skew.
Do not apply 3.3V directly to the I/O pins without verifying 5V tolerance via the datasheet - although the EPF8820ATC100-2N is a 5V part, some legacy FLEX 8000 device variants have 3.3V-only I/O. Always wait for CONF_DONE to assert before driving user I/O pins from external sources, or use the bus-hold feature during configuration. The -2 speed grade is the fastest commercial speed; if timing closure fails, step down to -3 or -4 instead of over-constraining. Configuration time is approximately 100 ms at 10 MHz DCLK - budget POR supervisor timeout accordingly.
Compliance Information
Lead-free per -N ordering suffix; RoHS compliant. Not AEC-Q100 qualified - this is a commercial/industrial-grade part. Halogen-free status and conflict-mineral compliance not explicitly stated in the manufacturer datasheet and marked unknown.
