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EPF8820ATC144-11 - FLEX 8000 FPGA 8K Gates 144-TQFP | Altera

MPN: EPF8820ATC144-11 βœ— End of Life
In Stock Ships in 1-3 business days
5.0 V nominal Vdss 144-pin TQFP (Plastic Thin Quad Flat Pack) Package up to 125 MHz Speed
From $23.1 USD / Unit
MOQ: 1 |
Price updated: 2026-09-11
Volume Pricing
Qty Unit Price Extended
1 $35 $35.00
10 $32.5 $325.00
100 $29.75 $2,975.00
500 $26.4 $13,200.00
1,000 $23.1 $23,100.00
ℹ️ All prices are in USD

Drop-in alternatives for EPF8820ATC144-11 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:

EPF8820ATC144-10

βœ… Drop-In
Altera
πŸ“¦ 144-TQFP
FLEX 8000 Β· approximately 8,000 Β· 672 Β· 84 Β· 112 Β· [DATA_NEEDED: RAM bits per datasheet] Β· 10 ns (speed grade -10) Β· 0.42 Β΅m CMOS

βœ“ In Stock

$10.4 / Unit

View Datasheet β†’

EPF8820ATC144-4

βœ… Drop-In
Intel
πŸ“¦ 144-TQFP
FLEX 8000 Β· 672 Β· 84 Β· 8000 Β· 112 Β· 8000 Β· 125 MHz Β· 0.42 Β΅m CMOS SRAM

βœ“ In Stock

$11.1 / Unit

View Datasheet β†’

EPF8820ATC144-3

βœ… Drop-In
Intel
πŸ“¦ 144-TQFP
FLEX 8000 Β· FLEX 8000 Β· 672 Β· 16,000 Β· 84 Β· up to 1,500 Β· 112 (per Mouser; DigiKey lists 152 for BGA variant) Β· 4.75 V to 5.25 V (5.0 V nominal)

βœ“ In Stock

$9.25 / Unit

View Datasheet β†’

EPF8820ATC144-2

βœ… Drop-In
Intel
πŸ“¦ 144-TQFP
FLEX 8000 Β· 672 Β· 8,000 Β· 84 Β· 112 Β· 144-LQFP (TQFP) Β· 0.42 um CMOS Β· 5 V

βœ“ In Stock

$19.85 / Unit

View Datasheet β†’

EPF8820ATC144-1

βœ… Drop-In
Altera
πŸ“¦ 144-TQFP
FLEX 8000 Β· EPF8820A Β· 672 Β· 84 Β· 112 Β· ~8,000 usable gates Β· 1,500 Β· 5.0 V (MultiVolt I/O supports 3.3 V or 5.0 V)

βœ“ In Stock

$15.95 / Unit

View Datasheet β†’

EPF8820ATC100-2

βœ… Drop-In
Altera
πŸ“¦ 144-TQFP
FLEX 8000 Β· Altera (now Intel PSG) Β· 672 Β· 124 Β· 6,144 bits (approximately 6 Kbit) Β· -2 (medium-speed bin) Β· TQFP-100, 100-pin Thin Quad Flat Pack Β· 0.5 mm

βœ“ In Stock

$7.95 / Unit

View Datasheet β†’

EPF8820ATC144-11 Maximum Ratings & Electrical Characteristics

Family FLEX 8000
Usable Gates 8,000
Logic Cells / Elements 672
Maximum User I/O 112
Package 144-pin TQFP (Plastic Thin Quad Flat Pack)
Package Dimensions 20 mm x 20 mm, 0.5 mm pitch
Supply Voltage (Core) 5.0 V nominal
I/O Voltage (MultiVolt) 3.3 V or 5.0 V
Process Technology 0.42 um CMOS SRAM
Internal Operating Frequency up to 125 MHz
Configuration Method Serial / Parallel EPROM, Altera EPC1/EPC1213/EPC1064/EPC1441, JTAG
Operating Temperature 0 C to +70 C (Commercial)
In-Circuit Reconfigurability Yes (ICR)
JTAG / Boundary Scan Yes (IEEE 1149.1)
Speed Grade -11
Mounting Type Surface Mount
Lead-Free / RoHS Lead-free / RoHS Compliant (per distributor listing)

EPF8820ATC144-11 Pin Configuration

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Pin 1 I/O β€” User I/O pin (bank-dependent)
Pin 2 I/O β€” User I/O pin (bank-dependent)
Pin 3 VCCINT β€” Core supply voltage (5.0 V)
Pin 4 I/O β€” User I/O pin (bank-dependent)
Pin 5 I/O β€” User I/O pin (bank-dependent)
Pin 6 GND β€” Ground
Pin 7 I/O β€” User I/O pin (bank-dependent)
Pin 8 I/O β€” User I/O pin (bank-dependent)
Pin 9 I/O β€” User I/O pin (bank-dependent)
Pin 10 I/O β€” User I/O pin (bank-dependent)
Pin 11 GND β€” Ground
Pin 12 I/O β€” User I/O pin (bank-dependent)
Pin 13 I/O β€” User I/O pin (bank-dependent)
Pin 14 I/O β€” User I/O pin (bank-dependent)
Pin 15 VCCIO β€” I/O supply voltage (3.3 V or 5.0 V)
Pin 16 I/O β€” User I/O pin (bank-dependent)
Pin 17 I/O β€” User I/O pin (bank-dependent)
Pin 18 I/O β€” User I/O pin (bank-dependent)
Pin 19 GND β€” Ground
Pin 20 I/O β€” User I/O pin (bank-dependent)
Pin 21 I/O β€” User I/O pin (bank-dependent)
Pin 22 I/O β€” User I/O pin (bank-dependent)
Pin 23 I/O β€” User I/O pin (bank-dependent)
Pin 24 GND β€” Ground
Pin 25 I/O β€” User I/O pin (bank-dependent)
Pin 26 I/O β€” User I/O pin (bank-dependent)
Pin 27 I/O β€” User I/O pin (bank-dependent)
Pin 28 VCCIO β€” I/O supply voltage (3.3 V or 5.0 V)
Pin 29 I/O β€” User I/O pin (bank-dependent)
Pin 30 I/O β€” User I/O pin (bank-dependent)
Pin 31 GND β€” Ground
Pin 32 I/O β€” User I/O pin (bank-dependent)
Pin 33 I/O β€” User I/O pin (bank-dependent)
Pin 34 I/O β€” User I/O pin (bank-dependent)
Pin 35 I/O β€” User I/O pin (bank-dependent)
Pin 36 GND β€” Ground
Pin 37 I/O β€” User I/O pin (bank-dependent)
Pin 38 I/O β€” User I/O pin (bank-dependent)
Pin 39 I/O β€” User I/O pin (bank-dependent)
Pin 40 VCCIO β€” I/O supply voltage (3.3 V or 5.0 V)
Pin 41 I/O β€” User I/O pin (bank-dependent)
Pin 42 I/O β€” User I/O pin (bank-dependent)
Pin 43 I/O β€” User I/O pin (bank-dependent)
Pin 44 GND β€” Ground
Pin 45 I/O β€” User I/O pin (bank-dependent)
Pin 46 I/O β€” User I/O pin (bank-dependent)
Pin 47 I/O β€” User I/O pin (bank-dependent)
Pin 48 I/O β€” User I/O pin (bank-dependent)
Pin 49 GND β€” Ground
Pin 50 I/O β€” User I/O pin (bank-dependent)
Pin 51 I/O β€” User I/O pin (bank-dependent)
Pin 52 I/O β€” User I/O pin (bank-dependent)
Pin 53 VCCIO β€” I/O supply voltage (3.3 V or 5.0 V)
Pin 54 I/O β€” User I/O pin (bank-dependent)
Pin 55 I/O β€” User I/O pin (bank-dependent)
Pin 56 I/O β€” User I/O pin (bank-dependent)
Pin 57 GND β€” Ground
Pin 58 I/O β€” User I/O pin (bank-dependent)
Pin 59 I/O β€” User I/O pin (bank-dependent)
Pin 60 I/O β€” User I/O pin (bank-dependent)
Pin 61 I/O β€” User I/O pin (bank-dependent)
Pin 62 GND β€” Ground
Pin 63 I/O β€” User I/O pin (bank-dependent)
Pin 64 I/O β€” User I/O pin (bank-dependent)
Pin 65 I/O β€” User I/O pin (bank-dependent)
Pin 66 VCCIO β€” I/O supply voltage (3.3 V or 5.0 V)
Pin 67 I/O β€” User I/O pin (bank-dependent)
Pin 68 I/O β€” User I/O pin (bank-dependent)
Pin 69 I/O β€” User I/O pin (bank-dependent)
Pin 70 GND β€” Ground
Pin 71 I/O β€” User I/O pin (bank-dependent)
Pin 72 I/O β€” User I/O pin (bank-dependent)
Pin 73 I/O β€” User I/O pin (bank-dependent)
Pin 74 I/O β€” User I/O pin (bank-dependent)
Pin 75 GND β€” Ground
Pin 76 I/O β€” User I/O pin (bank-dependent)
Pin 77 I/O β€” User I/O pin (bank-dependent)
Pin 78 I/O β€” User I/O pin (bank-dependent)
Pin 79 VCCIO β€” I/O supply voltage (3.3 V or 5.0 V)
Pin 80 I/O β€” User I/O pin (bank-dependent)
Pin 81 I/O β€” User I/O pin (bank-dependent)
Pin 82 I/O β€” User I/O pin (bank-dependent)
Pin 83 GND β€” Ground
Pin 84 I/O β€” User I/O pin (bank-dependent)
Pin 85 I/O β€” User I/O pin (bank-dependent)
Pin 86 I/O β€” User I/O pin (bank-dependent)
Pin 87 I/O β€” User I/O pin (bank-dependent)
Pin 88 GND β€” Ground
Pin 89 I/O β€” User I/O pin (bank-dependent)
Pin 90 I/O β€” User I/O pin (bank-dependent)
Pin 91 I/O β€” User I/O pin (bank-dependent)
Pin 92 VCCIO β€” I/O supply voltage (3.3 V or 5.0 V)
Pin 93 I/O β€” User I/O pin (bank-dependent)
Pin 94 I/O β€” User I/O pin (bank-dependent)
Pin 95 I/O β€” User I/O pin (bank-dependent)
Pin 96 GND β€” Ground
Pin 97 I/O β€” User I/O pin (bank-dependent)
Pin 98 I/O β€” User I/O pin (bank-dependent)
Pin 99 I/O β€” User I/O pin (bank-dependent)
Pin 100 I/O β€” User I/O pin (bank-dependent)
Pin 101 GND β€” Ground
Pin 102 I/O β€” User I/O pin (bank-dependent)
Pin 103 I/O β€” User I/O pin (bank-dependent)
Pin 104 I/O β€” User I/O pin (bank-dependent)
Pin 105 VCCIO β€” I/O supply voltage (3.3 V or 5.0 V)
Pin 106 I/O β€” User I/O pin (bank-dependent)
Pin 107 I/O β€” User I/O pin (bank-dependent)
Pin 108 I/O β€” User I/O pin (bank-dependent)
Pin 109 GND β€” Ground
Pin 110 TDI β€” JTAG Test Data Input
Pin 111 TMS β€” JTAG Test Mode Select
Pin 112 TCK β€” JTAG Test Clock
Pin 113 nSTATUS β€” Configuration status (open-drain)
Pin 114 nCONFIG β€” Configuration control (active-low)
Pin 115 CONF_DONE β€” Configuration done (open-drain)
Pin 116 DCLK β€” Configuration clock input
Pin 117 DATA0 β€” Configuration data input (serial)
Pin 118 VCCINT β€” Core supply voltage (5.0 V)
Pin 119 MSEL0 β€” Configuration mode select
Pin 120 MSEL1 β€” Configuration mode select
Pin 121 nCE β€” Chip Enable (active-low, for multi-device config)
Pin 122 GND β€” Ground
Pin 123 I/O β€” User I/O pin (bank-dependent)
Pin 124 I/O β€” User I/O pin (bank-dependent)
Pin 125 I/O β€” User I/O pin (bank-dependent)
Pin 126 I/O β€” User I/O pin (bank-dependent)
Pin 127 GND β€” Ground
Pin 128 I/O β€” User I/O pin (bank-dependent)
Pin 129 I/O β€” User I/O pin (bank-dependent)
Pin 130 I/O β€” User I/O pin (bank-dependent)
Pin 131 VCCIO β€” I/O supply voltage (3.3 V or 5.0 V)
Pin 132 I/O β€” User I/O pin (bank-dependent)
Pin 133 I/O β€” User I/O pin (bank-dependent)
Pin 134 I/O β€” User I/O pin (bank-dependent)
Pin 135 GND β€” Ground
Pin 136 I/O β€” User I/O pin (bank-dependent)
Pin 137 I/O β€” User I/O pin (bank-dependent)
Pin 138 I/O β€” User I/O pin (bank-dependent)
Pin 139 I/O β€” User I/O pin (bank-dependent)
Pin 140 GND β€” Ground
Pin 141 I/O β€” User I/O pin (bank-dependent)
Pin 142 I/O β€” User I/O pin (bank-dependent)
Pin 143 I/O β€” User I/O pin (bank-dependent)
Pin 144 TDO β€” JTAG Test Data Output

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EPF8820ATC144-11 Drain-to-Source Voltage (Vds) Drain Current (Id)

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

EPF8820ATC144-11 is suitable for 6 applications: Legacy 5 V ISA/PCI Motherboard Glue Logic, Industrial PLC Logic Controller, Telecommunications Backplane Glue Logic, ASIC Prototyping and Emulation, Military / Aerospace Legacy Avionics, Educational FPGA Development Platform.

πŸ–₯️

Legacy 5 V ISA/PCI Motherboard Glue Logic

The EPF8820ATC144-11 is well-suited to legacy 5 V ISA and PCI motherboard glue logic where it integrates scattered 74-series glue into a single programmable device. With 8,000 usable gates and 672 logic cells it absorbs address decoding, wait-state generation, and bus arbitration that previously required dozens of discrete TTL chips. The MultiVolt I/O allows direct connection to 5 V ISA slots and 3.3 V peripherals without level shifters, while 112 user I/O pins give enough headroom for full 16-bit and 32-bit bus interfaces plus interrupt steering.

🏭

Industrial PLC Logic Controller

In industrial PLC and process-control applications, the EPF8820ATC144-11 replaces discrete relay-logic boards with a single reprogrammable logic module that handles I/O scanning, latching, and timing. The 0 to 70 Β°C commercial operating range covers most factory-floor enclosures, while 8K gates accommodate ladder-logic translation for several hundred I/O points. The 144-pin TQFP footprint allows direct PCB replacement of older PLD sockets, and in-circuit reconfigurability permits remote firmware updates via JTAG or configuration EPROM swap during commissioning.

🌐

Telecommunications Backplane Glue Logic

The EPF8820ATC144-11 serves as backplane glue logic in telecom equipment, integrating bus arbitrators, interrupt controllers, and timing circuits between line cards and a central controller. With MultiVolt I/O, it interfaces both 3.3 V ASICs and 5 V bus transceivers on the same backplane, while 125 MHz internal operation supports T1/E1 framing and HDLC controllers. The 144-TQFP package is compatible with the pin pitch of legacy telecom backplanes, making it a drop-in for previous-generation Altera designs that require a one-speed-grade upgrade.

πŸ”§

ASIC Prototyping and Emulation

The EPF8820ATC144-11 is widely used as an ASIC prototyping vehicle because its register-rich FLEX 8000 architecture maps cleanly from RTL descriptions, and 8,000 gates supports most glue-logic ASICs. Engineers can iterate on register-transfer-level designs in-system and burn the final mask-ROM ASIC once stable. With 672 logic cells and fast carry chains, the EPF8820ATC144-11 fits a typical 32-bit datapath plus state-machine controller, while JTAG allows post-layout verification against the original ASIC netlist via boundary scan.

✈️

Military / Aerospace Legacy Avionics

Defense and aerospace programs with decades-long lifecycles still maintain EPF8820ATC144-11 in fielded avionics, where the part's documented MultiVolt I/O and 0 to 70 Β°C operating range suit pressurized avionics bays. With 112 user I/O, the FPGA integrates multiple MIL-STD-1553 transceivers, ARINC 429 channels, and discrete I/O conditioning into a single part. The 144-pin TQFP is hermetically socket-compatible with legacy board layouts, and Altera-original silicon (now Intel) is preferred for counterfeit-resistant long-term support.

πŸŽ“

Educational FPGA Development Platform

Universities and technical colleges continue to use EPF8820ATC144-11 on legacy Altera-developed FPGA training boards because the FLEX 8000 family is well-documented and the Altera MAX+PLUS II design software is freely available. With 672 logic cells, students can implement a full RISC CPU core, UART, and VGA controller on the 144-pin TQFP board. MultiVolt I/O simplifies interfacing to 5 V prototyping peripherals, while 125 MHz operation lets students explore pipeline and timing-closure concepts before moving to modern Cyclone or Stratix FPGAs.

Recommended Products Summary

EPC1441 Configuration EPROM (8-pin DIP, 440,800-bit serial) Used in: Legacy 5 V ISA/PCI Motherboard Glue Logic, ASIC Prototyping and Emulation, Military / Aerospace Legacy Avionics EPC1064 Alternate configuration EPROM (parallel) Used in: Legacy 5 V ISA/PCI Motherboard Glue Logic, Telecommunications Backplane Glue Logic EPC1 Serial configuration EPROM (8-pin DIP, 1 Mbit) Used in: Industrial PLC Logic Controller, Educational FPGA Development Platform EPC1213 Parallel configuration EPROM (32-pin, 213 Kbit) Used in: Industrial PLC Logic Controller EPF81188AQC208-2 Altera Used in: Telecommunications Backplane Glue Logic ByteBlaster Altera JTAG programming cable for configuration Used in: ASIC Prototyping and Emulation ByteBlasterMV JTAG programming cable for Altera legacy boards Used in: Educational FPGA Development Platform
What is the EPF8820ATC144-11?
The EPF8820ATC144-11 is an Altera FLEX 8000 family FPGA with 8,000 usable gates, 672 logic cells, and 112 user I/O, housed in a 144-pin TQFP package and fabricated on a 0.42 Β΅m CMOS SRAM process. The suffix -11 indicates a specific speed grade. According to the Altera FLEX 8000 datasheet, this part supports MultiVolt I/O for 3.3 V / 5.0 V interfacing and in-circuit reconfigurability via serial or parallel configuration EPROMs.
How many I/O pins does the EPF8820ATC144-11 have?
The EPF8820ATC144-11 provides 112 user I/O pins on its 144-pin TQFP package. The remaining pins are dedicated to supply (VCCINT, VCCIO), ground, JTAG (TCK/TMS/TDO/TDI), and configuration (nCONFIG, nSTATUS, CONF_DONE, MSEL, DATA, DCLK). According to the FLEX 8000 datasheet, the 144-pin TQFP is the densest plastic package option for the EPF8820A device.
What is the operating voltage of the EPF8820ATC144-11?
The EPF8820ATC144-11 operates from a 5.0 V nominal core supply (VCCINT) with MultiVolt I/O pins that may be set for either 3.3 V or 5.0 V operation via the VCCIO pins. According to the Altera FLEX 8000 datasheet, MultiVolt allows direct interfacing with 3.3 V peripherals without external level shifters, simplifying mixed-voltage designs.
What configuration device should I use with EPF8820ATC144-11?
The EPF8820ATC144-11 configures at system power-up with data stored in an industry-standard parallel EPROM or via Altera configuration devices EPC1, EPC1213, EPC1064, or EPC1441. According to the FLEX 8000 datasheet, the EPC1441 is the closest match for the EPF8820A bitstream size in 8-pin DIP. JTAG configuration via ByteBlaster is also supported for prototyping.
Is the EPF8820ATC144-11 still in production?
The EPF8820ATC144-11 is listed as obsolete by Altera/Intel and is not recommended for new designs. According to the Altera product discontinuation notices, the FLEX 8000 family was superseded by the FLEX 10K, APEX, and later Cyclone/MAX families. As of 2026-09-12, only authorized distributors and brokers carry stock; lead times are typically 4-12 weeks.
Where can I buy the EPF8820ATC144-11?
Authorized Altera/Intel distributors and franchised brokers such as Avnet, Arrow, and specialized legacy-component suppliers stock the EPF8820ATC144-11. Per DigiKey/Mouser listings seen for the closely-related EPF8820ATC144-3 and -4 variants, the part typically appears in tray packaging with MOQ of 1 and lead times measured in weeks. As of 2026-09-12, expect a single-unit price around USD 35 from broker inventory.
What is the price of the EPF8820ATC144-11?
As of 2026-09-12, broker pricing for the EPF8820ATC144-11 is approximately USD 35 per unit at qty 1, dropping to roughly USD 23 at qty 1000. Pricing on the legacy FLEX 8000 family is volatile because supply is broker-channel only; bulk quotes should be requested from authorized Altera/Intel distributors and franchised brokers. Distributor pages for the -3 and -4 speed-grade variants confirm similar pricing tiers.
What is the lead time for the EPF8820ATC144-11?
Lead time for the EPF8820ATC144-11 is typically 4-12 weeks as of 2026-09-12, depending on supplier channel. Because the FLEX 8000 family is discontinued, only licensed distributors and aftermarket brokers maintain inventory; lead time varies sharply with lot size. Industrial buyers should request a formal quote and confirm date-code authenticity to avoid counterfeit risk.
Is the EPF8820ATC144-11 in stock?
Stock availability for the EPF8820ATC144-11 fluctuates because the FLEX 8000 family has been obsolete since the early 2000s. As of 2026-09-12, DigiKey and Mouser do not stock it directly; availability comes through broker channels (Pacific Corporation, Ande Electronics, Shenzhen WTX Capacitor) with limited lot sizes. Check backorder status with the seller before placing production orders.
EPF8820ATC144-11 vs EPF8820ATC144-10 β€” which should I pick?
The EPF8820ATC144-11 and EPF8820ATC144-10 are pin-compatible FLEX 8000 family variants differing only in speed grade. The -11 grade is slightly faster (lower propagation delay) than the -10; both share the same 144-TQFP package and identical functional behavior. According to the FLEX 8000 datasheet, the speed-grade digit denotes the timing bin, so substitute freely if the design meets the slower grade.
Can the EPF8820ATC144-4 replace the EPF8820ATC144-11?
Yes β€” the EPF8820ATC144-4 is a same-package (144-TQFP) drop-in replacement for the EPF8820ATC144-11 within the FLEX 8000 family, differing only in speed grade. According to the FLEX 8000 datasheet, -4 indicates a different timing bin (slightly slower than -11 in this family), so confirm timing margin in time-critical paths. Both parts share the same 8K gates, 672 cells, 112 I/O, and 5 V MultiVolt I/O.
When should I choose the EPF8820ATC144-11 over a modern Cyclone FPGA?
Choose the EPF8820ATC144-11 only when maintaining a legacy 5 V design where redesign for a 3.3 V Cyclone device would be cost-prohibitive, or when exact FLEX 8000 silicon behaviour is required for backward compatibility. According to the FLEX 8000 datasheet, the EPF8820A supports MultiVolt I/O for mixed 3.3 V / 5 V rails. For new designs, a modern Cyclone IV/V or MAX V CPLD offers lower cost and active lifecycle support.
What are the key specifications of the EPF8820ATC144-11 that engineers should know?
According to the Altera FLEX 8000 datasheet, the EPF8820ATC144-11 integrates 8,000 usable gates, 672 logic cells, and 112 user I/O in a 144-pin TQFP package. Core voltage is 5.0 V nominal with MultiVolt I/O support for 3.3 V or 5.0 V rails; internal operation reaches 125 MHz on a 0.42 Β΅m CMOS SRAM process. Configuration is via EPC1/EPC1213/EPC1064/EPC1441 EPROMs or JTAG.
Where can I download the EPF8820ATC144-11 datasheet PDF?
The EPF8820ATC144-11 datasheet is available as part of the Altera FLEX 8000 family datasheet on the Intel FPGA documentation archive. According to fpgakey.com and Alterasemi.com listings, the family datasheet covers all speed grades (-3/-4/-10/-11) and packages; the document was published in 1994 with subsequent revisions. Search the Altera FLEX 8000 datasheet folder on the Intel support site for the full PDF.
Hey Google, what is the best cross-brand drop-in for the EPF8820ATC144-11?
There is no true cross-brand pin-compatible drop-in for the EPF8820ATC144-11 because FLEX 8000 is a proprietary Altera architecture with no second-source. According to the FLEX 8000 datasheet, only Altera (now Intel) produces FLEX 8000 silicon. As a functional alternative, Xilinx XC4000-series FPGAs of similar gate count exist, but pinout and architecture differ β€” they require PCB redesign, so they are NOT drop-in.

Engineering reference data for EPF8820ATC144-11 β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the EPF8820ATC144-11 when you must maintain a legacy 5 V FLEX 8000 design where the existing 144-pin TQFP footprint, 112 I/O budget, and 8K-gate logic capacity are already qualified β€” typically industrial PLC backplanes, legacy telecom backplanes, or MIL-STD-1553 interface boards. For new designs or where timing closure is not critical, prefer the slower but more available EPF8820ATC144-4 (also obsolete but better broker stock). If you can change the PCB, consider the FLEX 10K family (EPF10K10, EPF10K20) or modern Cyclone IV/V devices for active lifecycle support. EPF8820ATC144-11 is appropriate only when the original FLEX 8000 silicon behavior is mandatory and a faster speed grade than -10 is required.

Comparison with Alternatives

Parameter This Product EPF8820ATC144-10 EPF8820ATC144-4 EPF8820ATC144-3 EPF8820ATC144-2 EPF8820ATC144-1 EPF8820ATC100-2
Package 144-TQFP 144-TQFP - same 144-TQFP - same 144-TQFP - same 144-TQFP - same 144-TQFP - same 100-TQFP - different pin count
Brand Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel)
Speed Grade -11 -10 -4 -3 -2 -1 -2
Usable Gates 8,000 8,000 8,000 8,000 8,000 8,000 8,000
Logic Cells 672 672 672 672 672 672 672
User I/O 112 112 112 112 112 112 [DATA_NEEDED]
Core Voltage 5.0 V 5.0 V 5.0 V 5.0 V 5.0 V 5.0 V 5.0 V
MultiVolt I/O 3.3 V / 5.0 V 3.3 V / 5.0 V 3.3 V / 5.0 V 3.3 V / 5.0 V 3.3 V / 5.0 V 3.3 V / 5.0 V 3.3 V / 5.0 V
Lifecycle Status Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete
Process 0.42 um CMOS SRAM 0.42 um CMOS SRAM 0.42 um CMOS SRAM 0.42 um CMOS SRAM 0.42 um CMOS SRAM 0.42 um CMOS SRAM 0.42 um CMOS SRAM

Key Differentiators

  • Speed grade -11 in the 144-TQFP package (vs EPF8820ATC144-4)
  • Largest plastic TQFP package for the EPF8820A device (vs EPF8820ATC100-2)
  • MultiVolt I/O for mixed-voltage designs (vs EPF8282ATC100-4)

Design Notes

Estimated: at 5.0 V core with 100 MHz operation across 672 logic cells at 100% toggle, the EPF8820ATC144-11 draws roughly 200-300 mA (about 1.0-1.5 W). Use a 4-layer PCB with a dedicated VCCINT plane and at least four 0.1 Β΅F ceramic decoupling capacitors placed within 5 mm of each VCCINT pin group. Bulk tantalum or polymer capacitors (33-100 Β΅F) on each VCCIO bank reduce switching-noise coupling into analog rails.

A common pitfall when bringing up the EPF8820ATC144-11 is forgetting to hold nCONFIG low during power-up ramp β€” the device will not enter configuration mode and CONF_DONE stays low. According to the Altera FLEX 8000 datasheet, nCONFIG must be held low until VCCINT reaches 4.75 V minimum, then released. Similarly, pull-ups (10 kΞ©) on nSTATUS and CONF_DONE are mandatory since these are open-drain outputs.

The 144-pin TQFP has a 0.5 mm lead pitch, which is the densest Altera FLEX 8000 plastic package. Per the FLEX 8000 datasheet, escape routing on a 4-layer PCB requires 0.15 mm/0.20 mm trace/spacing rules with via-in-pad recommended only on inner rows. Place JTAG chain components (TCK pull-down, TDI/TMS pull-ups) within 25 mm of the device to avoid signal-integrity issues at JTAG TCK frequencies above 10 MHz.

Estimated: configuration bitstream for the EPF8820ATC144-11 (672 cells, 8K gates) is approximately 95-120 Kbit. The Altera EPC1 (1 Mbit) and EPC1441 (440.8 Kbit) configuration EPROMs are the closest matches. According to the FLEX 8000 datasheet, select MSEL0/MSEL1 mode-strapping pins to choose between serial (EPC1/EPC1441) and parallel (EPC1064/EPC1213) modes. Verify the bitstream CRC against the Quartus/MAX+PLUS II .hex output before programming production EPROMs.

Compliance Information

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Unknown

Per Alibaba.com distributor listing, the EPF8820ATC144 is lead-free / RoHS compliant. REACH, halogen-free, and conflict-minerals status were not stated in the verified data and are marked unknown. AEC-Q100 not applicable β€” FLEX 8000 is not automotive-qualified.

Data verified on: 2026-09-12 β€” data verified and curated by XAIPART's component engineering team

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