EP1K30QI208-2 - ACEX-1K FPGA 2.5V 208PQFP | Altera
MPN: EP1K30QI208-2 ✗ End of Life| Qty | Unit Price | Extended |
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EP1K30QI208-2 Overview
An FPGA is a semiconductor device whose logic fabric is configured after manufacturing using hardware description languages rather than being fixed at the factory. FPGAs belong to the programmable logic device hierarchy and sit above simple PLDs and CPLDs in logic capacity, while remaining lower-cost and more flexible than custom ASICs for moderate-volume designs. The ACEX-1K family is an early 2.5 V FPGA line intended for low-cost system-on-a-programmable-chip integration, making the EP1K30QI208-2 useful for legacy industrial control, communications bridging, and test-and-measurement boards that need reconfigurable parallel logic.
Key features of the EP1K30QI208-2 include 147 user I/O pins, which allow it to interface with a wide range of external buses, SRAM-like parts, and processors. Its 24,576 embedded RAM bits provide on-chip FIFO or small buffer memory, reducing the need for external SRAM in simpler designs. The 2.5 V core reduces power consumption compared with older 5 V or 3.3 V programmable devices. The industrial-grade temperature option extends reliable operation into factory, instrumentation, and outdoor enclosure applications. An enhanced embedded array supports megafunctions such as memory and specialized logic functions, while dual-port memory support enables efficient data buffering.
Architecturally, the ACEX-1K series uses LE-based logic with look-up-table implementation and an embedded array for memory and complex functions. The DigChip device-family summary describes dual-port capability and an embedded array intended for system-on-a-programmable-chip integration. With a reported 200 MHz family maximum in the AiPCBA summary and speed-grade option -2, the EP1K30QI208-2 is adequate for bus-level glue logic, state machines, and moderate-rate data path functions rather than ultra-high-speed transceiver applications.
Typical applications include legacy PLC I/O expansion, protocol bridging in networking equipment, imaging preprocessing, medical instrument logic, and teaching-laboratory FPGA designs. Because it is an older 2.5 V FPGA, system designers must include a separate 2.5 V supply and a configuration source, since FPGA configuration is not retained when power is removed.
One important design consideration is that the EP1K30QI208-2 is configuration-based and requires a configuration device, download cable, or host processor at every power-up. It does not behave like a CPLD that is instantly active. Also, exact VCCIO and thermal specifications should be confirmed from the manufacturer datasheet before committing the PCB layout.
This page synthesizes distributor availability, ACEX-1K family alternatives, and practical selection guidance from multiple web sources, giving engineers a quicker starting point than searching datasheets and supplier pages separately.
Drop-in alternatives for EP1K30QI208-2 — 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 EP1K30QI208-2 (same form factor and footprint) — differing in Operating Temperature, Process Technology, RoHS Status, Speed Grade, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EP1K30QI208-2N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$20.24 / Unit
View Datasheet →EP1K30QI208-1
✅ Drop-In📋 Reference alternative (not in catalog)
EP1K30QI208-3
✅ Drop-In📋 Reference alternative (not in catalog)
EP1K30QC208-2N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$22.1 / Unit
View Datasheet →EP1K30QC208-2
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$7.9 / Unit
View Datasheet →EP1K30QC208-1N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$29.88 / Unit
View Datasheet →EP1K30QC208-3N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$15.9 / Unit
View Datasheet →EP1K30QI208-2 Maximum Ratings & Electrical Characteristics
| Product Category | FPGA - Field Programmable Gate Array |
| Series | ACEX-1K |
| Number of Logic Elements/Cells | 1,728 |
| Total RAM Bits | 24,576 |
| Number of User I/Os | 147 |
| Number of Typical Gates | 30,000 |
| Core Supply Voltage | 2.5 V |
| Maximum Clock Frequency | 200 MHz |
| Speed Grade | -2 |
| Package / Case | 208-BFQFP (PQFP-208) |
| Package Code | FQFP |
| Package Shape | SQUARE |
| Terminal Form | GULL WING |
| Number of Terminals | 208 |
| Temperature Grade | Industrial (I) |
| Mounting Type | Surface Mount |
| Propagation Delay | 0.4 ns (per AiPCBA programming manual summary) |
| Memory Features | Enhanced embedded array with dual-port SRAM support |
EP1K30QI208-2 square Pin Configuration Guide
Pin configuration for EP1K30QI208-2 (square 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 EP1K30QI208-2.
Refer to the datasheet for full pin configuration.
Typical Applications
EP1K30QI208-2 is suitable for 6 applications: Industrial Control and PLC I/O Expansion, Network and Bus Bridge Logic, Medical Instrument Diagnostic Logic, Imaging and Display Preprocessing, FPGA Education and University Laboratories, Power Sequencing and System Health Monitoring.
Industrial Control and PLC I/O Expansion
The EP1K30QI208-2 is well suited to PLC I/O expansion because its 147 user I/Os can sample limit switches, encoders, start/stop signals, and alarm contacts while presenting a consolidated bus to the host controller. Its 1,728 logic cells implement contact debounce, edge detection, and interlock logic without external 74-series counters or glue logic, reducing component count and supply-chain risk. In a 24 V factory environment, external opto-isolation and level shifting adapt the 2.5 V/3.3 V FPGA banks to field wiring. A 200 MHz internal clock provides large timing margin for a typical 1 ms PLC scan. The industrial I-grade version is preferable on the factory floor because commercial C-grade variants may not cover the full required temperature range.
Recommended
Network and Bus Bridge Logic
In networking equipment, the EP1K30QI208-2 can act as a low-cost bus bridge, translating between legacy parallel buses, status registers, and memory-mapped interfaces. Its 24,576 RAM bits support small FIFOs and packet counters, while 147 I/Os can connect directly to SRAM-like peripherals, DSPs, or microcontrollers. The 200 MHz speed grade accommodates typical 50-100 MHz bus timing without difficulty. The dual-port memory capability described in the ACEX-1K family summary is especially useful for asynchronous buffering between two clock domains. For lead-free production, choose the N-suffix variant or verify RoHS status on this legacy device. This application benefits from the industrial temperature option when used in outdoor switches, remote terminals, or factory networking cabinets.
Recommended
Medical Instrument Diagnostic Logic
The EP1K30QI208-2 fits medical diagnostic boards that require deterministic parallel logic, such as patient monitor interface cards, motorized pump controllers, and moderate-speed data acquisition front ends. Its 1,728 logic cells can implement timing generators, calibration state machines, and alarm logic, while the 2.5 V core keeps power dissipation lower than older 5 V programmable devices. The industrial I temperature grade is advantageous in medical equipment that operates for long periods in ventilated enclosures. Because this ACEX-1K part is legacy, designs using it for new medical products should include an obsolescence mitigation plan or migrate to a currently supported FPGA family. For older medical boards in service, same-family drop-in replacements are the quickest route to maintaining production.
Recommended
Imaging and Display Preprocessing
The EP1K30QI208-2 can perform sensor timing control, line buffering, and simple image preprocessing before a CPU or DSP handles frames. Its 24,576 RAM bits can store several image lines for small sensors or scan-format converters, and its 147 I/Os allow direct connection to CMOS imagers, ADCs, or display controllers. The 200 MHz logic capacity is sufficient for pixel clocks in the tens of megahertz common in lower-resolution cameras and industrial vision systems. The ACEX-1K dual-port memory support is useful when moving pixel data from one timing domain to another. For imaging systems exposed to heat or dust, the industrial-grade part provides broader environmental tolerance than a commercial-grade part.
Recommended
FPGA Education and University Laboratories
The EP1K30QI208-2 is useful in university FPGA courses because its 1,728 logic cells and 147 I/Os are large enough to teach combinational logic, state machines, counters, and simple processor exercises while still being small enough to compile quickly with legacy Altera/Intel design tools. The PQFP-208 package is readily available on socketed training boards and legacy development kits. Students can observe the FPGA configuration flow, pin assignment, and JTAG programming process using low-cost download cables. The industrial I temperature grade also makes these devices tolerant of student lab environments. Because this is an older family, some newer software versions may not fully support it, so labs should retain the compatible tool version or use it for board-level repair and hardware heritage studies.
Recommended
Power Sequencing and System Health Monitoring
The EP1K30QI208-2 can replace small CPLDs in systems that sequence power rails, monitor reset inputs, and generate status signals because it provides 1,728 logic cells with enough room for state machines and watchdog logic. Its 147 I/Os can sense several power-good signals and drive enable pins for DC-DC converters or LDOs. The 2.5 V core is convenient when the local FPGA rail is generated from a higher intermediate bus. The industrial temperature grade and wide I/O count make this device useful for baseboard management controllers, server sleds, or industrial computers that require reliable power-up state control. As an SRAM FPGA, it must be configured by a supervisor or configuration memory before its outputs can perform sequencing, so the power-on sequence must account for configuration time.
Recommended
Recommended Products Summary
Engineering reference data for EP1K30QI208-2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1K30QI208-2N | EP1K30QC208-2N | EP1K30QC208-3N |
|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera |
| Package | 208-BFQFP / PQFP-208 | 208-BFQFP / PQFP-208 - same | 208-BFQFP / PQFP-208 - same | 208-BFQFP / PQFP-208 - same |
| Package Pins | 208 | 208 | 208 | 208 |
| Temperature Grade | Industrial (I) | Industrial (I) | Commercial (C) | Commercial (C) |
| Speed Grade | -2 | -2 | -2 | -3 |
| Lead-Free / RoHS Marking | Unknown (non-N legacy part) | N suffix (lead-free intent) | N suffix (lead-free intent) | N suffix (lead-free intent) |
| Logic Elements/Cells | 1,728 | 1,728 | 1,728 | 1,728 |
| Total RAM Bits | 24,576 | 24,576 | 24,576 | 24,576 |
| User I/O Count | 147 | 147 | 147 | 147 |
Key Differentiators
- Industrial I temperature grade (vs EP1K30QC208-2N)
- Balanced -2 speed grade (vs EP1K30QC208-3N)
- No lead-free suffix on the original part (vs EP1K30QI208-2N)
Design Notes
The EP1K30QI208-2 core is specified for 2.5 V operation. Do not connect the core supply directly to a 3.3 V or 5 V rail. On legacy boards originally designed for 5 V logic, use a dedicated 2.5 V regulator or DC-DC converter close to the FPGA and split analog/digital ground planes if the board has precision measurement circuits. The retrieved web data does not state the complete VCCIO requirements, so verify all supply pins and sequencing requirements from the manufacturer datasheet before layout.
For a 208-lead PQFP/BFQFP, place decoupling capacitors as close to the FPGA power pins as practical and use a solid ground plane beneath the package. If this is a legacy board repair, confirm that the original PCB has enough decoupling for the 2.5 V ACEX-1K core; many older boards added bulk capacitors near the package corners. Keep JTAG configuration traces short and provide a pull-up/pull-down strategy so the device does not drive floating I/O pins during configuration.
The EP1K30QI208-2 is SRAM-based and will lose its configuration whenever power is removed. A system that expects instant-on operation must include a configuration device or host controller to load the bitstream at every power-up. Do not assume that EP1K30QC208-2, EP1K30QC208-2N, or EP1K30QI208-2N variants will run the same configuration file without checking pin assignments and configuration settings in the targeted design tool. This legacy ACEX-1K family is obsolete, so include inventory and alternate-sourcing plans in production designs.
Compliance Information
The target part has no N suffix in its ordering code, so lead-free/RoHS status cannot be confirmed from the retrieved snippets. The EP1K30QI208-2N variant is commonly treated as the lead-free version. AEC-Q100 does not apply to this FPGA family.
