EP1K100QI208-3N - ACEX 1K FPGA, 4992 LE, 2.5V | Intel
MPN: EP1K100QI208-3N ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $22.5 | $22.50 |
| 10 | $20.15 | $201.50 |
| 100 | $17.85 | $1,785.00 |
| 500 | $16.2 | $8,100.00 |
| 1,000 | $14.5 | $14,500.00 |
EP1K100QI208-3N Overview
An FPGA is a digital integrated circuit whose logic fabric and routing are configured after manufacturing by loading a bitstream, allowing designers to implement custom state machines, bus interfaces, and parallel processing without committing to a fixed ASIC. This EP1K100 device sits between small CPLDs and larger million-gate FPGAs in the programmable-logic hierarchy: its embedded RAM array can be used as FIFOs or small buffers, while the 4992 logic elements provide moderate-density user logic on a single surface-mount QFP.
Key features of the EP1K100QI208-3N include the 2.5V ACEX 1K core architecture, 147 general-purpose I/O pins plus 6 dedicated input pins, 49152 RAM bits, and the industrial QI temperature option. The 208-pin gull-wing QFP package supports conventional SMT assembly without the expensive board technology needed by BGA devices, and the -3 speed grade provides a balanced mainstream operating-frequency range for industrial designs.
From a technical standpoint, the EP1K100QI208-3N uses SRAM-based configuration, which means it must be configured at power-up by a configuration device or host processor. The I/O count and embedded memory make it suitable for applications that need parallel bus control, display interfaces, or multiple communication channels while still preserving routing flexibility. Because the family is no longer in active production, designers should confirm the exact speed grade, temperature suffix, and lead-free order code on the original Altera/Intel ordering table before committing to production.
Typical applications include industrial control I/O boards, test and measurement front-end logic, telecommunication line-card control, image-related frame buffering, and moderate-throughput data path processing. The -40C to +85C industrial rating allows the device to be placed in unheated cabinets, outdoor telecom enclosures, and factory-floor equipment without exceeding the guaranteed temperature specification.
One important design consideration is that this is a 2.5V-core FPGA, so 5V or 3.3V external devices require level-shifting and careful I/O standard planning. Supply decoupling should be placed close to every VCC pin, and the configuration source must be selected so that the FPGA reliably loads its bitstream during power-up.
This page synthesizes distributor price signals, drop-in alternatives, and practical design notes for the EP1K100QI208-3N beyond what is typically found in a raw datasheet listing, helping engineers evaluate sourcing and replacement options quickly.
Drop-in alternatives for EP1K100QI208-3N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EP1K100QI208-3N (same form factor and footprint) — differing in Speed Grade, Family, Package, Package Code, Terminal Form.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EP1K100QI208-3
✅ Drop-In✓ In Stock
$19.75 / Unit
View Datasheet →EP1K100QI208-2N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
Contact for price
View Datasheet →EP1K100QI208-2
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$23.9 / Unit
View Datasheet →EP1K100QC208-3N
✅ Drop-In✓ In Stock
$19.5 / Unit
View Datasheet →EP1K100QC208-2N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$16.42 / Unit
View Datasheet →EP1K100QC208-1N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$16.29 / Unit
View Datasheet →EP1K100QI208-3N Maximum Ratings & Electrical Characteristics
| Product Family | ACEX 1K |
| Device Type | Field Programmable Gate Array (FPGA) |
| Technology | CMOS |
| Number of Logic Elements | 4992 |
| Total RAM Bits | 49152 |
| Number of Dedicated Inputs | 6 |
| Number of User I/O | 147 |
| Typical Gate Count (Family) | 100000 |
| Package / Case | QFP-208 (208-BFQFP) |
| Number of Terminals | 208 |
| Terminal Form | Gull-wing |
| Mounting Type | Surface Mount |
| Supply Voltage - Nominal | 2.5 V |
| Supply Voltage - Maximum | 2.625 V |
| Speed Grade | -3 |
| Operating Temperature Range | -40C to +85C |
EP1K100QI208-3N qfp-208 (208-bfqfp) Pin Configuration Guide
Pin configuration for EP1K100QI208-3N (qfp-208 (208-bfqfp) package). 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 EP1K100QI208-3N.
Refer to the datasheet for full pin configuration.
Typical Applications
EP1K100QI208-3N is suitable for 6 applications: Industrial Control and PLC I/O, Test and Measurement Instrumentation, Telecommunication Line Cards, Video and Image Frame Buffering, Medical Monitoring Equipment, Security and Video Surveillance Controllers.
Industrial Control and PLC I/O
EP1K100QI208-3N fits industrial control because its 147 I/O pins provide sufficient channels for PLC input, relay output, and encoder capture logic, while the industrial temperature range of -40C to +85C supports unheated cabinets and factory-floor environments. The 4992 logic elements implement state machines for interlock and startup sequencing, reducing the need for many discrete logic gates. In a 24V I/O environment, level translation is mandatory on most pins because the FPGA core supply is only 2.5V. The 49152 RAM bits can act as small FIFO buffers for sensor data or alarm histories. The QFP-208 package permits conventional routing without blind vias, which simplifies industrial PCB manufacturing. Because the device is SRAM-based, the configuration source should be selected with the same care as the logic design, especially in noisy industrial power domains.
Recommended
Test and Measurement Instrumentation
In test and measurement instruments, EP1K100QI208-3N provides 4992 programmable logic elements for counter/timer functions, trigger logic, and digital pattern generation, while its 49152 RAM bits buffer acquired samples before the host processor reads them. The 208-pin QFP package gives engineers enough I/O to connect multiple ADC front ends, DACs, and front-panel controls without an expensive BGA board stack. The -40C to +85C operating range supports products intended for field service, not only bench use. Designers should add low-ESR capacitors on the 2.5V rail and maintain clean analog ground returns if the FPGA is placed close to precision converters. Since this ACEX 1K device is obsolete, new instrument projects should verify that a source of programmed or blank devices is available before manufacturing.
Recommended
Telecommunication Line Cards
EP1K100QI208-3N can serve as a line-card controller and protocol bridge in telecommunication equipment, where 147 I/O pins connect to multiple serial PHYs, backplane buses, and status LEDs. Its 49152 RAM bits are useful for elasticity buffers or small packet queues on low-to-medium-speed links, and the user logic can handle HDLC, UART, or simple bus multiplexing without an external ASSP. The industrial temperature range allows the FPGA to be placed in outdoor or uncontrolled telecom cabinets. The main limitation is design density: only 4992 logic elements are available, so complex packet inspection or high-port-count switching belongs in a larger FPGA or network processor. Careful pin assignment is required to fit backplane bus routing into the QFP-208 device.
Recommended
Video and Image Frame Buffering
EP1K100QI208-3N can be used in moderate-resolution video or imaging systems for timing generation, pixel formatting, and small frame region buffering. The 147 I/O pins provide enough parallel signal paths for 8-bit or 16-bit pixel buses, sensor clocks, and handshake lines, while the embedded 49152 RAM bits can be organized into line buffers or dual-clock FIFOs that cross asynchronous domains. The -3 speed grade is suitable for VGA/standard-definition pixel rates but may not sustain high-definition video with heavy logic use. The 2.5V FPGA core requires level shifting when interfacing with legacy 3.3V CMOS image sensors. An external SDRAM or SRAM is still needed for full frames, because the on-chip RAM is too small for large images. Treat the FPGA as a flexible glue device rather than a full video processor.
Recommended
Medical Monitoring Equipment
Medical monitoring equipment can use EP1K100QI208-3N for signal acquisition sequencing, display interface logic, and alarm generation in subsystems that require low-to-medium FPGA resources. Its 2.5V core, QFP-208 footprint, and industrial temperature range make it adaptable to portable monitoring carts and bedside instruments. However, medical devices are normally subject to system-level isolation and safety requirements that are not demonstrated by the FPGA itself, so the design must still pass IEC-style EMC and safety testing. The 4992 logic elements and 147 I/O are enough for most front-panel and acquisition logic, but the system designer must carefully separate analog and digital grounds. Since ACEX 1K is obsolete, long-term medical production programs should qualify an alternate lot or maintain a last-time-buy inventory strategy.
Recommended
Security and Video Surveillance Controllers
EP1K100QI208-3N can implement controller and interface logic for security camera main boards, including sensor timing, UART/RS-485 communication, alarm I/O, and LED indication. The 49152 RAM bits can buffer one or more video scanline datasets or hold small event records collected from external sensors. Because it uses 2.5V core logic, the FPGA must be paired with suitable level translators when connected to 3.3V image sensors or legacy analog video encoders. The QFP-208 package remains manufacturable on standard 4-6 layer boards and keeps system cost lower than a BGA FPGA of the same era. The -40C to +85C rating helps in outdoor camera housings with passive cooling, although self-heating of the QFP package must be considered in a sealed enclosure.
Recommended
Recommended Products Summary
Engineering reference data for EP1K100QI208-3N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1K100QI208-3 | EP1K100QI208-2N | EP1K100QC208-3N | EP1K100QC208-2N |
|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | QFP-208 (208-BFQFP) | QFP-208 (208-BFQFP) - same | QFP-208 (208-BFQFP) - same | QFP-208 (208-BFQFP) - same | QFP-208 (208-BFQFP) - same |
| Number of Logic Elements | 4992 | 4992 | 4992 | 4992 | 4992 |
| Total RAM Bits | 49152 | 49152 | 49152 | 49152 | 49152 |
| Number of General-Purpose I/O | 147 | 147 | 147 | 147 | 147 |
| Supply Voltage Nominal | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Operating Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial grade | Commercial grade |
| Speed Grade | -3 | -3 | -2 | -3 | -2 |
Key Differentiators
- Industrial temperature grade is explicitly encoded in the ordering code (vs EP1K100QC208-3N)
- N-suffix industrial -3 device balances lead-free assembly and mainstream speed (vs EP1K100QI208-3)
- Same-logic drop-in availability with multiple speed/temperature variants (vs EP1K100QC208-2N)
Design Notes
EP1K100QI208-3N operates from a nominal 2.5V core supply with a maximum of 2.625V in the verified data. The minimum supply voltage was not present in the fetched snippets, so use the datasheet's absolute table before setting regulator tolerance. Place a 0.1uF ceramic capacitor close to each VCC pin and a 10uF bulk capacitor per supply side of the QFP-208 package. If the board mixes 3.3V and 2.5V logic, add ESD-conscious level translators rather than relying on the FPGA's I/O clamp diodes for voltage conversion.
Estimated: for a 208-pin QFP FPGA in a sealed enclosure, self-heating depends strongly on logic utilization, I/O toggle rate, and ambient temperature. The junction temperature should be evaluated against the industrial maximum of +85C (the verified ambient/device temperature range is -40C to +85C). Use a short thermal path through the QFP leads to a large ground plane and provide airflow or enclosure ventilation for high-activity designs. If the FPGA must be placed near an external heatsink, verify that package lead strain is not induced by mechanical pressure.
Route the 208-lead QFP with 0.5mm-class pitch design rules and avoid routing critical clock lines under the FPGA body. Provide a solid ground plane on layer 2 and a separate 2.5V plane for the FPGA core; avoid splitting the ground plane under the device. Add series termination resistors near the FPGA outputs for fast-swing signals and keep the JTAG/configuration pins accessible for boundary-scan testing. The exposed paddle of the QFP package should be connected to the correct electrical node per the manufacturer footprint drawing before board release.
The ACEX 1K FPGA is SRAM-based, so it loses its configuration at power-off and must be reloaded at every power-up. Do not assume that the FPGA boots from an internal flash; use an external configuration device, host processor, or JTAG download during bring-up. Also note that the QI208 target is the industrial temperature grade, while QC208 parts are commercial grade. If a generic cross-reference result says a Xilinx BGA FPGA has the same gate count, it is not a drop-in replacement and will normally require a new board layout and a different configuration flow.
Compliance Information
The N suffix in the ordering code commonly indicates a lead-free/RoHS-designated variant, but no compliance certificate was present in the fetched data; values are set to unknown according to anti-fabrication rules.
