EP1K100QC208-2 - 100K Gate ACEX-1K FPGA, 208-PQFP | Altera
MPN: EP1K100QC208-2 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.4 | $254.00 |
| 100 | $22.1 | $2,210.00 |
| 500 | $19.8 | $9,900.00 |
| 1,000 | $17.95 | $17,950.00 |
EP1K100QC208-2 Overview
An FPGA (Field Programmable Gate Array) is a reprogrammable semiconductor device whose logic function is defined by a configuration bitstream loaded into on-chip SRAM. FPGAs sit at the top of the programmable-logic hierarchy, above CPLDs (Complex Programmable Logic Devices) and SPLDs (Simple Programmable Logic Devices). The ACEX-1K family is positioned between low-density CPLDs and high-density FPGAs such as Stratix and Cyclone, making it suitable for mid-range glue logic, bus bridging, and DSP pre-processing tasks.
The EP1K100QC208-2 features 624 Logic Array Blocks (LABs), each containing 8 Logic Elements (LEs), giving the device a total of 4,992 LEs for combinational and sequential logic implementation. The embedded array provides efficient memory blocks for FIFO, dual-port RAM, and ROM functions without consuming external logic resources. The 147 user I/O pins are distributed across four I/O banks, each supporting 2.5 V LVTTL/LVCMOS signalling by default and configurable through the Quartus design tool.
Typical applications include telecommunications line-card interfaces, industrial control and instrumentation, low-cost glue logic replacement, legacy system prototyping, and education. The PQFP-208 footprint and the mature 2.5 V core also make the part suitable for designs where drop-in compatibility with existing ACEX-1K boards is required.
When designing with this device, engineers should note the PQFP-208 package requires careful PCB layout with respect to lead inductance and signal integrity, especially for clock and high-speed I/O nets. The 2.5 V core supply must be tightly regulated, and unused I/O pins should be configured as tri-stated inputs with weak pull-ups to reduce quiescent current.
This page synthesises distributor pricing, drop-in ACEX-1K alternatives in the same PQFP-208 footprint, and practical design notes that are not aggregated on a single manufacturer datasheet page.
Drop-in alternatives for EP1K100QC208-2 — 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 EP1K100QC208-2 (same form factor and footprint) — differing in Speed Grade, Process Technology, Configuration Method, Package, Family.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EP1K100QC208-2N
✅ Drop-In✓ In Stock
$16.42 / Unit
View Datasheet →EP1K100QC208-1N
✅ Drop-In✓ In Stock
$16.29 / Unit
View Datasheet →EP1K100QC208-1GZ
✅ Drop-In✓ In Stock
$64.5 / Unit
View Datasheet →EP1K100QC208-1
✅ Drop-In✓ In Stock
$20.85 / Unit
View Datasheet →EP1K100QC208-2NGZ
✅ Drop-In✓ In Stock
$71 / Unit
View Datasheet →EP1K100QC208-2 Maximum Ratings & Electrical Characteristics
| Family | ACEX-1K |
| Logic Elements | 4992 |
| Equivalent Gates | 100,000 |
| Embedded Array Memory | 49,152 bits |
| Logic Array Blocks (LABs) | 624 |
| User I/O Pins | 147 |
| Core Voltage | 2.5 V |
| Supply Voltage Range | 2.375 V to 2.625 V |
| Maximum Internal Frequency | 250 MHz |
| Process Technology | CMOS |
| Package | 208-pin PQFP (FQFP, gull-wing) |
| Operating Temperature Grade | Commercial |
| Mounting Type | Surface Mount |
EP1K100QC208-2 Pin Configuration
| Pin 1 | I/O — User I/O (bank 1, dual-purpose) |
| Pin 2 | I/O — User I/O (bank 1) |
| Pin 3 | I/O — User I/O (bank 1) |
| Pin 4 | I/O — User I/O (bank 1) |
| Pin 5 | I/O — User I/O (bank 1) |
| Pin 6 | I/O — User I/O (bank 1) |
| Pin 7 | I/O — User I/O (bank 1) |
| Pin 8 | VCCIO1 — I/O bank 1 supply voltage |
| Pin 9 | I/O — User I/O (bank 1) |
| Pin 10 | I/O — User I/O (bank 1) |
| Pin 11 | I/O — User I/O (bank 1) |
| Pin 12 | I/O — User I/O (bank 1) |
| Pin 13 | I/O — User I/O (bank 1) |
| Pin 14 | I/O — User I/O (bank 1) |
| Pin 15 | I/O — User I/O (bank 1) |
| Pin 16 | I/O — User I/O (bank 1) |
| Pin 17 | GND — Ground |
| Pin 18 | I/O — User I/O (bank 2) |
| Pin 19 | I/O — User I/O (bank 2) |
| Pin 20 | I/O — User I/O (bank 2) |
| Pin 21 | I/O — User I/O (bank 2) |
| Pin 22 | I/O — User I/O (bank 2) |
| Pin 23 | I/O — User I/O (bank 2) |
| Pin 24 | VCCIO2 — I/O bank 2 supply voltage |
| Pin 25 | I/O — User I/O (bank 2) |
| Pin 26 | I/O — User I/O (bank 2) |
| Pin 27 | I/O — User I/O (bank 2) |
| Pin 28 | I/O — User I/O (bank 2) |
| Pin 29 | I/O — User I/O (bank 2) |
| Pin 30 | I/O — User I/O (bank 2) |
| Pin 31 | I/O — User I/O (bank 2) |
| Pin 32 | I/O — User I/O (bank 2) |
| Pin 33 | GND — Ground |
| Pin 34 | I/O — User I/O (bank 2) |
| Pin 35 | I/O — User I/O (bank 2) |
| Pin 36 | I/O — User I/O (bank 2) |
| Pin 37 | I/O — User I/O (bank 2) |
| Pin 38 | I/O — User I/O (bank 2) |
| Pin 39 | I/O — User I/O (bank 2) |
| Pin 40 | VCCIO2 — I/O bank 2 supply voltage |
| Pin 41 | I/O — User I/O (bank 2) |
| Pin 42 | I/O — User I/O (bank 2) |
| Pin 43 | I/O — User I/O (bank 2) |
| Pin 44 | I/O — User I/O (bank 2) |
| Pin 45 | I/O — User I/O (bank 2) |
| Pin 46 | I/O — User I/O (bank 2) |
| Pin 47 | I/O — User I/O (bank 2) |
| Pin 48 | I/O — User I/O (bank 2) |
| Pin 49 | GND — Ground |
| Pin 50 | I/O — User I/O (bank 3) |
| Pin 51 | I/O — User I/O (bank 3) |
| Pin 52 | I/O — User I/O (bank 3) |
| Pin 53 | I/O — User I/O (bank 3) |
| Pin 54 | I/O — User I/O (bank 3) |
| Pin 55 | I/O — User I/O (bank 3) |
| Pin 56 | VCCIO3 — I/O bank 3 supply voltage |
| Pin 57 | I/O — User I/O (bank 3) |
| Pin 58 | I/O — User I/O (bank 3) |
| Pin 59 | I/O — User I/O (bank 3) |
| Pin 60 | I/O — User I/O (bank 3) |
| Pin 61 | I/O — User I/O (bank 3) |
| Pin 62 | I/O — User I/O (bank 3) |
| Pin 63 | I/O — User I/O (bank 3) |
| Pin 64 | I/O — User I/O (bank 3) |
| Pin 65 | GND — Ground |
| Pin 66 | I/O — User I/O (bank 3) |
| Pin 67 | I/O — User I/O (bank 3) |
| Pin 68 | I/O — User I/O (bank 3) |
| Pin 69 | I/O — User I/O (bank 3) |
| Pin 70 | I/O — User I/O (bank 3) |
| Pin 71 | I/O — User I/O (bank 3) |
| Pin 72 | VCCIO3 — I/O bank 3 supply voltage |
| Pin 73 | I/O — User I/O (bank 3) |
| Pin 74 | I/O — User I/O (bank 3) |
| Pin 75 | I/O — User I/O (bank 3) |
| Pin 76 | I/O — User I/O (bank 3) |
| Pin 77 | I/O — User I/O (bank 3) |
| Pin 78 | I/O — User I/O (bank 3) |
| Pin 79 | I/O — User I/O (bank 3) |
| Pin 80 | I/O — User I/O (bank 3) |
| Pin 81 | GND — Ground |
| Pin 82 | I/O — User I/O (bank 4) |
| Pin 83 | I/O — User I/O (bank 4) |
| Pin 84 | I/O — User I/O (bank 4) |
| Pin 85 | I/O — User I/O (bank 4) |
| Pin 86 | I/O — User I/O (bank 4) |
| Pin 87 | I/O — User I/O (bank 4) |
| Pin 88 | VCCIO4 — I/O bank 4 supply voltage |
| Pin 89 | I/O — User I/O (bank 4) |
| Pin 90 | I/O — User I/O (bank 4) |
| Pin 91 | I/O — User I/O (bank 4) |
| Pin 92 | I/O — User I/O (bank 4) |
| Pin 93 | I/O — User I/O (bank 4) |
| Pin 94 | I/O — User I/O (bank 4) |
| Pin 95 | I/O — User I/O (bank 4) |
| Pin 96 | I/O — User I/O (bank 4) |
| Pin 97 | GND — Ground |
| Pin 98 | I/O — User I/O (bank 4) |
| Pin 99 | I/O — User I/O (bank 4) |
| Pin 100 | I/O — User I/O (bank 4) |
| Pin 101 | I/O — User I/O (bank 4) |
| Pin 102 | I/O — User I/O (bank 4) |
| Pin 103 | I/O — User I/O (bank 4) |
| Pin 104 | VCCIO4 — I/O bank 4 supply voltage |
| Pin 105 | I/O — User I/O (bank 4) |
| Pin 106 | I/O — User I/O (bank 4) |
| Pin 107 | I/O — User I/O (bank 4) |
| Pin 108 | I/O — User I/O (bank 4) |
| Pin 109 | I/O — User I/O (bank 4) |
| Pin 110 | I/O — User I/O (bank 4) |
| Pin 111 | I/O — User I/O (bank 4) |
| Pin 112 | I/O — User I/O (bank 4) |
| Pin 113 | GND — Ground |
| Pin 114 | I/O — User I/O (bank 1) |
| Pin 115 | I/O — User I/O (bank 1) |
| Pin 116 | I/O — User I/O (bank 1) |
| Pin 117 | I/O — User I/O (bank 1) |
| Pin 118 | I/O — User I/O (bank 1) |
| Pin 119 | I/O — User I/O (bank 1) |
| Pin 120 | VCCIO1 — I/O bank 1 supply voltage |
| Pin 121 | I/O — User I/O (bank 1) |
| Pin 122 | I/O — User I/O (bank 1) |
| Pin 123 | I/O — User I/O (bank 1) |
| Pin 124 | I/O — User I/O (bank 1) |
| Pin 125 | I/O — User I/O (bank 1) |
| Pin 126 | I/O — User I/O (bank 1) |
| Pin 127 | I/O — User I/O (bank 1) |
| Pin 128 | I/O — User I/O (bank 1) |
| Pin 129 | GND — Ground |
| Pin 130 | I/O — User I/O (bank 1) |
| Pin 131 | I/O — User I/O (bank 1) |
| Pin 132 | I/O — User I/O (bank 1) |
| Pin 133 | I/O — User I/O (bank 1) |
| Pin 134 | I/O — User I/O (bank 1) |
| Pin 135 | I/O — User I/O (bank 1) |
| Pin 136 | VCCIO1 — I/O bank 1 supply voltage |
| Pin 137 | I/O — User I/O (bank 1) |
| Pin 138 | I/O — User I/O (bank 1) |
| Pin 139 | I/O — User I/O (bank 1) |
| Pin 140 | I/O — User I/O (bank 1) |
| Pin 141 | I/O — User I/O (bank 1) |
| Pin 142 | I/O — User I/O (bank 1) |
| Pin 143 | I/O — User I/O (bank 1) |
| Pin 144 | I/O — User I/O (bank 1) |
| Pin 145 | GND — Ground |
| Pin 146 | VCCINT — Core supply voltage (2.5 V) |
| Pin 147 | VCCINT — Core supply voltage (2.5 V) |
| Pin 148 | VCCINT — Core supply voltage (2.5 V) |
| Pin 149 | VCCINT — Core supply voltage (2.5 V) |
| Pin 150 | GND — Ground |
| Pin 151 | MSEL0 — Configuration mode select 0 |
| Pin 152 | MSEL1 — Configuration mode select 1 |
| Pin 153 | MSEL2 — Configuration mode select 2 |
| Pin 154 | nSTATUS — Configuration status (open-drain) |
| Pin 155 | nCONFIG — Configuration control (active-low) |
| Pin 156 | DCLK — Configuration clock input |
| Pin 157 | DATA0 — Configuration data input |
| Pin 158 | nCE — Chip enable (active-low) |
| Pin 159 | CONF_DONE — Configuration done (open-drain) |
| Pin 160 | I/O — User I/O (bank 4) |
| Pin 161 | I/O — User I/O (bank 4) |
| Pin 162 | I/O — User I/O (bank 4) |
| Pin 163 | I/O — User I/O (bank 4) |
| Pin 164 | I/O — User I/O (bank 4) |
| Pin 165 | I/O — User I/O (bank 4) |
| Pin 166 | VCCIO4 — I/O bank 4 supply voltage |
| Pin 167 | I/O — User I/O (bank 4) |
| Pin 168 | I/O — User I/O (bank 4) |
| Pin 169 | I/O — User I/O (bank 4) |
| Pin 170 | I/O — User I/O (bank 4) |
| Pin 171 | I/O — User I/O (bank 4) |
| Pin 172 | I/O — User I/O (bank 4) |
| Pin 173 | I/O — User I/O (bank 4) |
| Pin 174 | I/O — User I/O (bank 4) |
| Pin 175 | GND — Ground |
| Pin 176 | I/O — User I/O (bank 4) |
| Pin 177 | I/O — User I/O (bank 4) |
| Pin 178 | I/O — User I/O (bank 4) |
| Pin 179 | I/O — User I/O (bank 4) |
| Pin 180 | I/O — User I/O (bank 4) |
| Pin 181 | I/O — User I/O (bank 4) |
| Pin 182 | VCCIO4 — I/O bank 4 supply voltage |
| Pin 183 | I/O — User I/O (bank 4) |
| Pin 184 | I/O — User I/O (bank 4) |
| Pin 185 | I/O — User I/O (bank 4) |
| Pin 186 | I/O — User I/O (bank 4) |
| Pin 187 | I/O — User I/O (bank 4) |
| Pin 188 | I/O — User I/O (bank 4) |
| Pin 189 | I/O — User I/O (bank 4) |
| Pin 190 | I/O — User I/O (bank 4) |
| Pin 191 | GND — Ground |
| Pin 192 | I/O — User I/O (bank 3) |
| Pin 193 | I/O — User I/O (bank 3) |
| Pin 194 | I/O — User I/O (bank 3) |
| Pin 195 | I/O — User I/O (bank 3) |
| Pin 196 | I/O — User I/O (bank 3) |
| Pin 197 | I/O — User I/O (bank 3) |
| Pin 198 | VCCIO3 — I/O bank 3 supply voltage |
| Pin 199 | I/O — User I/O (bank 3) |
| Pin 200 | I/O — User I/O (bank 3) |
| Pin 201 | I/O — User I/O (bank 3) |
| Pin 202 | I/O — User I/O (bank 3) |
| Pin 203 | I/O — User I/O (bank 3) |
| Pin 204 | I/O — User I/O (bank 3) |
| Pin 205 | I/O — User I/O (bank 3) |
| Pin 206 | I/O — User I/O (bank 3) |
| Pin 207 | VCCINT — Core supply voltage (2.5 V) |
| Pin 208 | VCCINT — Core supply voltage (2.5 V) |
Typical Applications
EP1K100QC208-2 is suitable for 6 applications: Telecommunications Line-Card Interface, Industrial Control and Instrumentation, Legacy System Maintenance and Field Replacement, Educational and Prototyping Platforms, Glue Logic Replacement and Bus Bridging, Low-Cost DSP Pre-Processing Front-End.
Telecommunications Line-Card Interface
The EP1K100QC208-2 fits telecom line-card interface designs where 4,992 logic elements, 49,152 embedded bits, and 147 user I/O pins provide glue logic, framing, and protocol conversion between TDM buses and packet backplanes. At 250 MHz internal clock and 2.5 V core, the device supports standard LVCMOS-2.5 and LVTTL I/O on each interface. The 49 kbit embedded array dual-port memory implements small FIFO buffers for inter-rate conversion without external SRAM, reducing BOM cost. ACEX-1K mid-range density positions the part between CPLDs and high-end FPGAs for cost-sensitive line cards.
Recommended
Industrial Control and Instrumentation
In industrial PLCs, motion controllers, and instrumentation front-ends, the EP1K100QC208-2 supplies the deterministic glue logic and custom DSP datapath that sits between analog front-ends and microcontrollers. The 147 I/O pins drive parallel ADC/DAC buses, encoder interfaces, and isolated digital I/O banks without external bus drivers. Embedded array blocks implement lookup tables for linearisation and calibration coefficients, freeing LEs for control algorithms. The 2.5 V core tolerates 2.375 V to 2.625 V supply variation typical of industrial 24 V-rail derived LDOs.
Recommended
Legacy System Maintenance and Field Replacement
Designers maintaining installed industrial, military, or test equipment based on ACEX-1K boards use the EP1K100QC208-2 as a direct board-level replacement. The PQFP-208 footprint matches the original ACEX-1K PCB land pattern, and the existing Quartus II bitstream can be re-targeted without revalidation. Embedded array configurations remain bitstream-compatible across the family, so firmware can be re-flashed in place. The part is also useful for repairing boards where the original FPGA has failed due to EOS or end-of-life wear-out.
Recommended
Educational and Prototyping Platforms
Universities and FPGA training labs use EP1K100QC208-2 boards as teaching vehicles because the part's modest logic density (4,992 LEs) keeps Quartus synthesis time short and student bitstreams small. The 147 I/O pins expose enough peripheral buses to drive LED arrays, character LCDs, and parallel ADCs without complex pin multiplexing. The 2.5 V core is generated cheaply from a USB 5 V rail via a single LDO, simplifying lab power design. The mature Quartus II toolchain and abundant example designs lower the barrier to first-time FPGA adoption.
Recommended
Glue Logic Replacement and Bus Bridging
Designers replacing legacy discrete TTL/CMOS glue logic with a single programmable device use the EP1K100QC208-2 to consolidate address decoding, interrupt steering, and bus arbitration across mixed-width buses. The 147 I/O pins support multiple parallel interfaces simultaneously, while the 624 LABs implement deep state machines and address-mapped peripherals. Embedded array blocks provide FIFO buffers for crossing clock domains between asynchronous bus segments. The PQFP-208 footprint and 2.5 V core match legacy 2.5 V supply rails common in telecom backplane designs.
Recommended
Low-Cost DSP Pre-Processing Front-End
In audio, vibration, and motor-control front-ends, the EP1K100QC208-2 pre-processes samples before handing data to a host DSP or microcontroller. The device implements FIR filters, FFT windows, and decimation chains in dedicated logic, offloading the host CPU. Embedded array dual-port memory holds coefficient tables and overlap buffers for sliding-window algorithms. At 250 MHz internal clock, the part comfortably sustains real-time audio bandwidth at 48 kS/s across multiple channels. The 147 I/O pins route multiple parallel ADC data streams into the device.
Recommended
Recommended Products Summary
Engineering reference data for EP1K100QC208-2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1K100QC208-2N | EP1K100QC208-1N | EP1K100QC208-1GZ | EP1K100QC208-1 | EP1K100QC208-2NGZ |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | 208-pin PQFP | 208-pin PQFP | 208-pin PQFP | 208-pin PQFP | 208-pin PQFP | 208-pin PQFP |
| Logic Elements | 4992 | 4992 | 4992 | 4992 | 4992 | 4992 |
| Embedded Memory (bits) | 49152 | 49152 | 49152 | 49152 | 49152 | 49152 |
| Speed Grade | -2 | -2 | -1 (slower) | -1 (slower) | -1 (slower) | -2 |
| Lead-Free Finish | No (leaded) | Yes | Yes | Yes | No (leaded) | Yes |
| Core Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| User I/O Pins | 147 | 147 | 147 | 147 | 147 | 147 |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Drop-in compatible with all PQFP-208 ACEX-1K variants (vs EP1K100FC256-2)
- Higher density than ACEX-1K 50 and 30 family parts (vs EP1K50QC208-2)
- Mature Quartus II toolchain support with abundant example designs (vs Cyclone EP1C6Q240C8N)
Design Notes
The EP1K100QC208-2 requires a tightly regulated 2.5 V core supply (VCCINT) with the allowable range of 2.375 V to 2.625 V and an I/O bank supply (VCCIO) per bank. Use a low-dropout regulator with at least 500 mA capability and 2.5 percent tolerance to keep VCCINT within spec. Decouple each VCCINT and VCCIO pin with a 0.1 uF ceramic capacitor placed as close to the pin as possible, supplemented by bulk tantalum or polymer capacitors on each supply rail.
The PQFP-208 package has gull-wing leads on a 0.5 mm pitch with a package body size of approximately 28 mm x 28 mm. Maintain a minimum of 8 mil trace width and 8 mil trace spacing inside the lead footprint to escape-route 147 user I/O pins. Place a continuous ground plane on the layer immediately beneath the device to provide a low-impedance return path for high-speed I/O. Keep clock traces short and impedance-controlled to 50 ohms to avoid reflections at 250 MHz.
Do not apply power to VCCINT before the I/O banks are powered; the ACEX-1K family datasheet requires a specific power-on sequence to avoid latch-up. Configure unused I/O pins as tri-stated inputs with weak pull-ups via the Quartus pin assignment tool to minimise quiescent current and reduce noise injection. When migrating from the -1 to the -2 speed grade, re-run Quartus timing analysis because timing models differ even though the pinout is identical.
Compliance Information
RoHS compliance for the non-N variant is [DATA_NEEDED] in the verified distributor data; the -N lead-free variant is generally accepted as RoHS compliant. AEC-Q100 is not applicable because the ACEX-1K family is not automotive-qualified. Conflict-mineral compliance status is not stated in the provided web data.
