EP1K100QC208-1 - 100K Gate ACEX-1K FPGA, 2.5V, PQFP-208 | Altera
MPN: EP1K100QC208-1 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.75 | $2,875.00 |
| 500 | $24.1 | $12,050.00 |
| 1,000 | $20.85 | $20,850.00 |
Drop-in alternatives for EP1K100QC208-1 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:
EP1K50QC208-1
β Drop-Inπ Reference alternative (not in catalog)
EP1K30QC208-1
β Drop-Inπ Reference alternative (not in catalog)
EP1K100QC208-1N
β Drop-Inβ In Stock
$16.29 / Unit
View Datasheet βEP1K100QC208-1GZ
β Drop-Inβ In Stock
$64.5 / Unit
View Datasheet βEP1K100QC208-1P
β Drop-Inπ Reference alternative (not in catalog)
EP1K100QC208-1 Maximum Ratings & Electrical Characteristics
| Family | ACEX-1K |
| Series | ACEX 1K |
| Logic Elements (LEs) | 4992 |
| Logic Array Blocks (LABs) | 624 |
| Maximum User I/O Pins | 147 |
| Embedded Memory Bits | 49152 |
| Number of RAM Blocks | Dual-port EAB array |
| Process Technology | 0.22 Β΅m |
| Core Supply Voltage | 2.5 V |
| Internal Performance | 333.33 MHz |
| Number of Logic Gates | 100000 |
| Package Type | 208-BFQFP (PQFP-208) |
| Mounting Type | Surface Mount |
| Operating Temperature Grade | Commercial (C) |
| Speed Grade | -1 |
| Configuration Method | Passive Serial / Passive Parallel Synchronous, JTAG |
| RoHS Status | unknown |
EP1K100QC208-1 208-bfqfp (pqfp-208) Pin Configuration Guide
Complete pinout information for EP1K100QC208-1 (208-bfqfp (pqfp-208) package) with 147 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 EP1K100QC208-1.
Refer to the datasheet for full pin configuration.
Estimated pin count: 147 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
EP1K100QC208-1 is suitable for 6 applications: Industrial Control & Instrumentation, Legacy Telecom Interface Cards, Glue-Logic Consolidation & ASIC Replacement, Low-Volume Custom ASIC Replacement, Educational HDL & Synthesis Platforms, Peripheral Bus Bridging & I/O Expansion.
Industrial Control & Instrumentation
The EP1K100QC208-1 fits industrial control and instrumentation because its 4,992 logic elements and 624 LABs can absorb the glue logic of PLC backplanes, encoder counters, and custom motor-control state machines in a single chip. The 49,152 bits of dual-port embedded RAM provide enough storage for command buffers, lookup tables, and PID coefficient sets, while the 147 user I/O accept LVTTL/3.3V signals directly from industrial sensors and 5V-tolerant signals from legacy opto-isolated front ends. Commercial temperature grade and a 333.33 MHz internal Fmax keep deterministic response for closed-loop control. Designers should still de-bounce inputs in the fabric and isolate analog front-ends with op-amps such as OPA1612 before digitization.
Recommended
Legacy Telecom Interface Cards
The EP1K100QC208-1 is well suited to legacy telecom line-card glue logic because it can bridge parallel TDM buses, perform framing/deframing in fabric, and buffer with dual-port EAB RAM at line rate. The 2.5V core plus multi-voltage I/O banks interface cleanly to legacy 3.3V framers and 5V backplane drivers without level shifters β a 5V-tolerance feature that modern Cyclone parts no longer offer. Engineers should pair this FPGA with a CPLD configuration supervisor and use JTAG for board-level diagnostics. The PQFP-208 footprint allows hand-rework and probe access during field repair.
Recommended
Glue-Logic Consolidation & ASIC Replacement
The EP1K100QC208-1 lets engineers consolidate dozens of 74-series TTL packages plus a small PAL/GAL into one reprogrammable device, simplifying the BOM and reducing PCB area on legacy boards. Its 4,992 LEs comfortably absorb wide bus muxes, address decoders, custom interrupt controllers, and small FIFOs that would otherwise require multiple CPLDs. The dual-port EAB blocks implement FIFO flags and small CAMs without external SRAM. Compared with a hard ASIC, the FPGA offers in-system JTAG reconfiguration for late ECOs β a key reason designers kept ACEX-1K in long-life-cycle industrial products.
Recommended
Low-Volume Custom ASIC Replacement
For low-volume products where a mask-programmed ASIC is uneconomical, the EP1K100QC208-1 provides 100K ASIC-equivalent gates with zero NRE and the same Quartus/MAX+PLUS II toolchain used by ASIC-equivalent designs. The 49,152 bits of embedded RAM cover most glue+buffer requirements, and the 147 user I/O accommodate wide external buses and parallel sensor arrays. Designers should reserve ~20% logic headroom for ECO and pin-out swaps, and budget for a configuration PROM plus decoupling. This part is also popular for retrofit and end-of-life replacements where the original ASIC is unobtainable.
Recommended
Educational HDL & Synthesis Platforms
The EP1K100QC208-1 is a proven teaching vehicle for HDL synthesis, state-machine design, and digital logic labs because the ACEX-1K family is fully supported by MAX+PLUS II and early Quartus β both free for student use on Windows and Linux. The 4,992 LEs give students enough headroom to implement processors, custom peripherals, and small SoCs without running out of fabric, while the JTAG chain simplifies on-board debug with SignalTap-like tools. University labs typically stock the development kit plus a parallel-port ByteBlaster for legacy programming. New curricula should still consider MAX 10 or Cyclone boards for current toolchain support.
Recommended
Peripheral Bus Bridging & I/O Expansion
The EP1K100QC208-1 is often used as a protocol-bridging hub between legacy ISA/PCI-style buses and modern processors, mapping 8/16-bit buses into 32-bit local fabrics using on-chip dual-port RAM for FIFO buffering. The 147 user I/O accommodate wide data, address, and handshake signals without external bus switches, and the 333.33 MHz internal Fmax keeps bridging latency low for memory-mapped peripherals. Engineers typically instantiate a soft DMA controller and scatter-gather engine in fabric. The PQFP-208 package is also easy to rework when bridging requirements evolve.
Recommended
Recommended Products Summary
Engineering reference data for EP1K100QC208-1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1K50QC208-1 | EP1K30QC208-1 | EP1K100QC208-1N | EP1K100QC208-1GZ | EP1K100QC208-1P |
|---|---|---|---|---|---|---|
| Package | PQFP-208 (BFQFP-208) | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same |
| Brand | Altera (now Intel) | Altera | Altera | Altera | Altera | Altera |
| Logic Elements | 4,992 | 2,976 | 1,500 | 4,992 | 4,992 | 4,992 |
| Embedded RAM Bits | 49,152 | 24,576 | 12,288 | 49,152 | 49,152 | 49,152 |
| Maximum User I/O | 147 | 147 | 147 | 147 | 147 | 147 |
| Core Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Speed Grade | -1 | -1 | -1 | -1 | -1 | -1 |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Highest density in PQFP-208 of the ACEX-1K family (vs EP1K50QC208-1)
- Lead-free / RoHS-friendly terminal-finish variant available (vs EP1K100QC208-1 (Pb-bearing))
- Same ACEX-1K 100K-gate silicon across speed grades (vs EP1K100QC208-1N (same silicon))
Design Notes
The EP1K100QC208-1 requires a clean 2.5V VCCINT rail capable of delivering up to several hundred mA during configuration and full utilization, plus separate VCCIO bank supplies for each I/O bank (typically 3.3V LVTTL or 5.0V TTL). Decouple each VCC pin with a 0.1 Β΅F X7R ceramic placed within 5 mm of the package, plus a bulk 47β100 Β΅F tantalum or polymer cap on the 2.5V rail. Sequence VCCINT before VCCIO if your design relies on JTAG boundary-scan at power-up. Estimated: idle Icc β 50 mA and full-utilization Icc up to ~400 mA per Altera ACEX-1K family typicals; verify against the ACEX-1K datasheet's power estimator before finalizing the regulator budget.
Do not assume the EP1K100QC208-1 is pin-compatible with newer Cyclone or MAX 10 FPGAs β the ACEX-1K family supports 5V-tolerant I/O via VCCIO banking, a feature removed from later families. According to Intel/Altera Community guidance referenced in the cross-reference data, a true drop-in replacement for the ACEX-1K family is unrealistic; designers who must migrate should plan a board revision with a SameFrame-compatible Cyclone or MAX 10 device in a current package. Watch out for obsolete configuration PROMs β the EPC2LC20 or EPC4 are typical companions. JTAG chain order and TCK pull-down are easy to miss on legacy boards.
The PQFP-208 package has fine-pitch gull-wing leads (0.5 mm pitch typical) and requires careful land-pattern geometry β follow IPC-7351 nominal footprints and avoid solder-mask-defined pads to reduce tombstoning on small passive components nearby. Route all configuration signals (nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0) as short, impedance-controlled traces away from switching signals, and provide a clear JTAG header for board bring-up. Place the configuration PROM within 50 mm of the FPGA. Use a solid ground plane on the layer beneath the FPGA to control SSO noise on the 147 simultaneously-switching I/O pins.
Compliance Information
Compliance status not provided in the verified web data. The -1N, -1GZ, and -1P suffix variants are typically lead-free Pb-free finishes, but explicit RoHS/REACH certifications must be confirmed via supplier lot documentation rather than inferred from the part-number suffix.
