EPF8820ATC144-7 - FLEX 8000 FPGA 672-Cell 7ns TQFP-144 | Altera
MPN: EPF8820ATC144-7 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.75 | $9,750.00 |
Drop-in alternatives for EPF8820ATC144-7 — 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 →EPF8820ATC144-4N
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View Datasheet →EPF8820ATC144-3
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View Datasheet →EPF8820ATC144-3N
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View Datasheet →EPF8820ATC144-1
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View Datasheet →EPF8820ATC144-7 Maximum Ratings & Electrical Characteristics
| Family | FLEX 8000 |
| Device | EPF8820A |
| Usable Gates | 8,000 |
| Logic Cells | 672 |
| Logic Array Blocks (LABs) | 84 |
| User I/O Pins | 112 |
| Speed Grade | -7 (7 ns pin-to-pin delay) |
| Technology Node | 0.42 µm CMOS SRAM |
| Core Supply Voltage | 5 V |
| I/O Supply Voltage (MultiVolt) | 3.3 V or 5.0 V |
| Maximum Frequency | 125 MHz |
| Package | 144-pin TQFP (TC144) |
| Configuration Method | SRAM, configured via EPC1/EPC1064/EPC1213/EPC1441 |
| Boundary Scan | IEEE 1149.1 JTAG |
| In-Circuit Reconfigurability | Yes (ICR) |
| Operating Temperature (commercial) | 0 °C to +70 °C |
EPF8820ATC144-7 144-pin tqfp (tc144) Pin Configuration Guide
Complete pinout information for EPF8820ATC144-7 (144-pin tqfp (tc144) package) with 112 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 EPF8820ATC144-7.
Refer to the datasheet for full pin configuration.
Estimated pin count: 112 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
EPF8820ATC144-7 is suitable for 6 applications: Legacy ISA-to-PCI Bus Bridge, Industrial Control State Machine, Telecom Line Card Interface Logic, Test & Measurement Front-End, Avionics Subsystem Glue Logic, ASIC Prototyping and TTL Replacement.
Legacy ISA-to-PCI Bus Bridge
The EPF8820ATC144-7's 112 user I/Os and 5V MultiVolt tolerance make it a practical glue-logic bridge between legacy ISA buses (8/16-bit at 8 MHz) and 32-bit PCI add-in cards. Its 672 logic cells and 8,000 usable gates are sufficient to implement address decoding, byte-swapping, and interrupt steering logic that previously required 6-10 discrete 74-series TTL packages. The -7 speed grade meets ISA timing with margin but is borderline for 33 MHz PCI, where the -4 or -3 grade would be safer. Designers target this part when modernizing industrial PCs that must remain pin- and footprint-compatible with 1990s motherboards, allowing drop-in upgrade of programmable logic without disturbing the rest of the BOM.
Recommended
Industrial Control State Machine
Factory automation controllers frequently use the EPF8820ATC144-7 to consolidate PLC ladder-logic equivalents into a single programmable device. The 84 LABs support complex multi-state sequencing for conveyor control, valve actuation, and motor start/stop interlocks, while the 5V I/O directly interfaces with industrial sensor outputs (24V tolerant via external resistor dividers). The -7 speed grade is well matched to sub-millisecond scan times typical of PLC scan cycles. Long-term availability makes this part attractive for machinery with 15-20 year service lifetimes where revalidation costs would dominate redesign expense.
Recommended
Telecom Line Card Interface Logic
Telecommunications line cards in legacy T1/E1 and early-SDH equipment deploy the EPF8820ATC144-7 to implement framing, alarm monitoring, and timeslot assignment between framer ICs and backplane connectors. The 112 I/Os accommodate parallel HDB3-coded data buses, while the embedded SRAM blocks in the FLEX 8000 fabric implement small elastic stores for jitter buffering. The part's 5V tolerance interfaces directly with bipolar ECL-to-TTL translator outputs common in telecom silicon of the era. Designers value the long-life-cycle support and the broad installed base of FLEX 8000 toolchain expertise within telecom OEMs.
Recommended
Test & Measurement Front-End
Bench-top instrumentation such as logic analyzers, protocol exercisers, and switch matrices use the EPF8820ATC144-7 to implement pattern generation, timing measurement, and front-panel switching. The 5V MultiVolt I/O interfaces directly with TTL/CMOS probe pods, and the 672-cell capacity is sufficient for 32-channel pattern generators with 8K-deep vectors stored in external SRAM. The 7 ns grade accommodates pattern rates up to about 50 MHz, which covers most serial protocol decode applications including SPI, I2C, and UART. The exposed JTAG boundary scan simplifies board-level test, a hallmark feature of FLEX 8000 designs.
Recommended
Avionics Subsystem Glue Logic
Military and commercial avionics subsystems use the EPF8820ATC144-7 to consolidate ARINC 429, MIL-STD-1553, and discrete I/O handling into a single programmable device. The 5V tolerance matches legacy avionics bus voltages, and the 0-70 °C commercial grade is acceptable for cabin and cockpit systems. For harsher environments, designers select the industrial 'I' grade or use the part inside an environmentally sealed chassis. The long lifecycle of avionics programs (often 25-30 years) makes the NRND status a critical procurement risk that must be mitigated with last-time-buy stock or qualified substitute planning.
Recommended
ASIC Prototyping and TTL Replacement
Before committing to a mask-programmed gate array, engineering teams use the EPF8820ATC144-7 to prototype and validate the full system design at clock speeds representative of the final ASIC. The 672 cells and 8K usable gates emulate ASIC gate counts up to about 15-20K gates with typical 3-4x utilization. Designers also use the part to consolidate a board full of discrete 74LS/74ALS/74F TTL into one IC, reducing board area by 50-70% and improving noise immunity. Once the design is validated, the FLEX 8000 bitstream can be re-spun in minutes versus ASIC mask cycles of 8-12 weeks.
Recommended
Recommended Products Summary
Engineering reference data for EPF8820ATC144-7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF8820ATC144-4 | EPF8820ATC144-4N | EPF8820ATC144-3 | EPF8820ATC144-3N | EPF8820ATC144-2 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | TQFP-144 | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same |
| Speed Grade | -7 (7 ns) | -4 (4 ns) | -4 (4 ns) | -3 (3 ns) | -3 (3 ns) | -2 (2 ns) |
| Usable Gates | 8,000 | 8,000 | 8,000 | 8,000 | 8,000 | 8,000 |
| Logic Cells | 672 | 672 | 672 | 672 | 672 | 672 |
| User I/Os | 112 | 112 | 112 | 112 | 112 | 112 |
| Lead-Free / RoHS | [DATA_NEEDED] | [DATA_NEEDED] | Yes (N suffix) | [DATA_NEEDED] | Yes (N suffix) | [DATA_NEEDED] |
| Lifecycle | NRND | NRND | NRND | NRND | NRND | NRND |
Key Differentiators
- Slowest commercial bin (-7) suited for cost-sensitive glue logic (vs EPF8820ATC144-4)
- MultiVolt I/O supports mixed 3.3V/5.0V system designs (vs EPF8452ATC100-4)
- In-circuit reconfigurability via serial EPROM (vs XC4003E (Xilinx 4000E family))
Design Notes
Estimated: at a 7 ns pin-to-pin delay in the -7 grade, the maximum toggle rate of a single flip-flop is approximately 1/(2×7ns) = 71 MHz before setup-time violations occur. Designs targeting 33 MHz PCI or 50 MHz synchronous buses must use the -4 or -3 grade instead. Do not assume the -7 grade is interchangeable with faster bins for timing closure without re-running static timing analysis in MAX+PLUS II or Quartus II.
The EPF8820ATC144-7 requires a stable 5V ±5% VCC supply with at least 100 mA of headroom for I/O switching transients. Decouple VCC with a 22 µF tantalum bulk capacitor and a 0.1 µF ceramic capacitor per VCC pin pair. During configuration, ICC can briefly spike to 300 mA; ensure the regulator's current limit and thermal dissipation accommodate this transient. The MultiVolt I/O bank can be powered from 3.3V or 5.0V independently of VCC, but both must be present for normal operation.
The 144-pin TQFP has a 0.5 mm pitch and requires careful PCB layout: use 4-mil traces with 4-mil spaces, length-matched differential pairs for clock nets, and a solid ground plane beneath the device. JTAG signals (TCK, TMS, TDI, TDO, TRST) should be guarded with ground traces to prevent noise-induced boundary-scan failures. Reserve space on the board for the EPC1/EPC1441 configuration EPROM in an 8-pin or 20-pin package adjacent to the FPGA.
Compliance Information
RoHS/lead-free status was not present in the verified web data; the 'N' suffix in EPF8820ATC144-4N indicates a lead-free finish variant, but the -7 grade suffix does not explicitly confirm lead-free compliance. AEC-Q100 is not applicable as FLEX 8000 is not automotive-qualified.
