EP1C3T100CN8 - Cyclone FPGA 3K LEs 100-TQFP | Altera (Intel PSG)
MPN: EP1C3T100CN8 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.8 | $1,380.00 |
| 500 | $11.95 | $5,975.00 |
| 1,000 | $10.4 | $10,400.00 |
Drop-in alternatives for EP1C3T100CN8 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EP1C3T100C8N
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View Datasheet →EP1C3T100C8
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View Datasheet →EP1C3T100C7N
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View Datasheet →EP1C3T100C7
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View Datasheet →EP1C3T100C6N
✅ Drop-In✓ In Stock
$13.5 / Unit
View Datasheet →EP1C3T100C6
✅ Drop-In✓ In Stock
$13.4 / Unit
View Datasheet →EP1C3T100CB
✅ Drop-In✓ In Stock
$9.95 / Unit
View Datasheet →EP1C3T100CN8 Maximum Ratings & Electrical Characteristics
| Family | Cyclone FPGA |
| Logic Elements | 2,910 |
| Total RAM Bits | 59,904 |
| User I/O Pins (max) | 65 |
| Package | 100-pin TQFP |
| Operating Temperature | 0 °C to 85 °C (Commercial) |
| Supply Voltage Core | 1.5 V |
| Speed Grade | -8 |
| PLLs | 2 |
| Process Technology | 0.13 µm SRAM |
| Configuration Modes | Passive Serial, JTAG |
| I/O Standards | LVTTL, LVCMOS, SSTL-2, SSTL-3 |
| Mounting Type | Surface Mount |
EP1C3T100CN8 Pin Configuration
| Pin 1 | I/O — User I/O pin (bank 1) |
| Pin 2 | I/O — User I/O pin (bank 1) |
| Pin 3 | I/O — User I/O pin (bank 1) |
| Pin 4 | I/O — User I/O pin (bank 1) |
| Pin 5 | I/O — User I/O pin (bank 1) |
| Pin 6 | I/O — User I/O pin (bank 1) |
| Pin 7 | I/O — User I/O pin (bank 1) |
| Pin 8 | I/O — User I/O pin (bank 1) |
| Pin 9 | I/O — User I/O pin (bank 1) |
| Pin 10 | I/O — User I/O pin (bank 1) |
| Pin 11 | I/O — User I/O pin (bank 1) |
| Pin 12 | I/O — User I/O pin (bank 1) |
| Pin 13 | I/O — User I/O pin (bank 1) |
| Pin 14 | I/O — User I/O pin (bank 1) |
| Pin 15 | I/O — User I/O pin (bank 1) |
| Pin 16 | I/O — User I/O pin (bank 1) |
| Pin 17 | I/O — User I/O pin (bank 1) |
| Pin 18 | I/O — User I/O pin (bank 1) |
| Pin 19 | I/O — User I/O pin (bank 1) |
| Pin 20 | I/O — User I/O pin (bank 1) |
| Pin 21 | I/O — User I/O pin (bank 1) |
| Pin 22 | I/O — User I/O pin (bank 1) |
| Pin 23 | I/O — User I/O pin (bank 1) |
| Pin 24 | I/O — User I/O pin (bank 1) |
| Pin 25 | I/O — User I/O pin (bank 1) |
| Pin 26 | I/O — User I/O pin (bank 1) |
| Pin 27 | I/O — User I/O pin (bank 1) |
| Pin 28 | I/O — User I/O pin (bank 1) |
| Pin 29 | I/O — User I/O pin (bank 1) |
| Pin 30 | I/O — User I/O pin (bank 1) |
| Pin 31 | GND — Ground |
| Pin 32 | I/O — User I/O pin (bank 2) |
| Pin 33 | I/O — User I/O pin (bank 2) |
| Pin 34 | I/O — User I/O pin (bank 2) |
| Pin 35 | I/O — User I/O pin (bank 2) |
| Pin 36 | I/O — User I/O pin (bank 2) |
| Pin 37 | I/O — User I/O pin (bank 2) |
| Pin 38 | I/O — User I/O pin (bank 2) |
| Pin 39 | I/O — User I/O pin (bank 2) |
| Pin 40 | I/O — User I/O pin (bank 2) |
| Pin 41 | I/O — User I/O pin (bank 2) |
| Pin 42 | I/O — User I/O pin (bank 2) |
| Pin 43 | I/O — User I/O pin (bank 2) |
| Pin 44 | I/O — User I/O pin (bank 2) |
| Pin 45 | I/O — User I/O pin (bank 2) |
| Pin 46 | I/O — User I/O pin (bank 2) |
| Pin 47 | I/O — User I/O pin (bank 2) |
| Pin 48 | I/O — User I/O pin (bank 2) |
| Pin 49 | I/O — User I/O pin (bank 2) |
| Pin 50 | I/O — User I/O pin (bank 2) |
| Pin 51 | GND — Ground |
| Pin 52 | I/O — User I/O pin (bank 3) |
| Pin 53 | I/O — User I/O pin (bank 3) |
| Pin 54 | I/O — User I/O pin (bank 3) |
| Pin 55 | I/O — User I/O pin (bank 3) |
| Pin 56 | I/O — User I/O pin (bank 3) |
| Pin 57 | I/O — User I/O pin (bank 3) |
| Pin 58 | I/O — User I/O pin (bank 3) |
| Pin 59 | I/O — User I/O pin (bank 3) |
| Pin 60 | I/O — User I/O pin (bank 3) |
| Pin 61 | I/O — User I/O pin (bank 3) |
| Pin 62 | I/O — User I/O pin (bank 3) |
| Pin 63 | I/O — User I/O pin (bank 3) |
| Pin 64 | I/O — User I/O pin (bank 3) |
| Pin 65 | I/O — User I/O pin (bank 3) |
| Pin 66 | I/O — User I/O pin (bank 3) |
| Pin 67 | I/O — User I/O pin (bank 3) |
| Pin 68 | I/O — User I/O pin (bank 3) |
| Pin 69 | I/O — User I/O pin (bank 3) |
| Pin 70 | I/O — User I/O pin (bank 3) |
| Pin 71 | I/O — User I/O pin (bank 3) |
| Pin 72 | GND — Ground |
| Pin 73 | I/O — User I/O pin (bank 4) |
| Pin 74 | I/O — User I/O pin (bank 4) |
| Pin 75 | I/O — User I/O pin (bank 4) |
| Pin 76 | I/O — User I/O pin (bank 4) |
| Pin 77 | I/O — User I/O pin (bank 4) |
| Pin 78 | I/O — User I/O pin (bank 4) |
| Pin 79 | I/O — User I/O pin (bank 4) |
| Pin 80 | I/O — User I/O pin (bank 4) |
| Pin 81 | I/O — User I/O pin (bank 4) |
| Pin 82 | I/O — User I/O pin (bank 4) |
| Pin 83 | I/O — User I/O pin (bank 4) |
| Pin 84 | I/O — User I/O pin (bank 4) |
| Pin 85 | I/O — User I/O pin (bank 4) |
| Pin 86 | I/O — User I/O pin (bank 4) |
| Pin 87 | I/O — User I/O pin (bank 4) |
| Pin 88 | I/O — User I/O pin (bank 4) |
| Pin 89 | I/O — User I/O pin (bank 4) |
| Pin 90 | I/O — User I/O pin (bank 4) |
| Pin 91 | I/O — User I/O pin (bank 4) |
| Pin 92 | I/O — User I/O pin (bank 4) |
| Pin 93 | VCCINT — Core supply voltage (1.5 V) |
| Pin 94 | nCONFIG — Configuration start (active low) |
| Pin 95 | nSTATUS — Configuration status (active low) |
| Pin 96 | CONF_DONE — Configuration complete (open-drain) |
| Pin 97 | DCLK — Configuration clock input |
| Pin 98 | DATA0 — Configuration data input |
| Pin 99 | MSEL0 — Configuration mode select 0 |
| Pin 100 | MSEL1 — Configuration mode select 1 |
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
EP1C3T100CN8 is suitable for 6 applications: Industrial Control and Bridging, Embedded Glue Logic Replacement, Low-Cost Video Processing Front-End, Peripheral Expansion for Embedded Systems, Education, Hobby, and Prototyping Platforms, Legacy Interface Replication and Long-Life Support.
Industrial Control and Bridging
The EP1C3T100CN8's 2,910 logic elements and 65 user I/O pins make it well suited for industrial control bridging — translating between legacy parallel buses (PC/104, ISA), industrial fieldbuses, and modern serial interfaces such as SPI, I2C, and UART. Two on-chip PLLs generate independent clock domains for motor control PWM and encoder feedback. The 100-pin TQFP simplifies hand-rework for low-volume industrial retrofits where BGA rework would be impractical.
Recommended
Embedded Glue Logic Replacement
Designers migrating from discrete 74-series MSI logic or small CPLDs to a single programmable device use the EP1C3T100CN8 to consolidate address decoding, bus arbitration, and timing logic onto one Cyclone FPGA. With 59,904 RAM bits of M4K block memory and 2,910 LEs, the device replaces dozens of discrete packages while improving timing margins. Quartus II integration lets engineers reuse legacy schematics as HDL through schematic-capture import.
Recommended
Low-Cost Video Processing Front-End
For low-cost video front-ends (VGA capture, LCD controller, simple image preprocessing), the EP1C3T100CN8 provides enough logic to implement timing controllers, simple color-space converters, and frame-buffer arbitration for a 640×480 stream at modest frame rates. The TQFP-100 footprint exposes sufficient I/O for 16-bit digital video plus auxiliary control signals. Use the on-chip PLLs to synthesize pixel clocks from a single reference oscillator.
Recommended
Peripheral Expansion for Embedded Systems
Embedded CPU boards (PC/104, VME, CompactPCI) often need extra I/O ports, custom interrupt controllers, or specialised interfaces that the host SoC cannot natively provide. The EP1C3T100CN8 in TQFP-100 sits easily alongside such CPUs as a peripheral-expansion co-processor, attaching via the host's memory bus or local-bus pins. Its two PLLs let the Cyclone derive peripheral clocks independently from the host system clock.
Recommended
Education, Hobby, and Prototyping Platforms
The Cyclone I EP1C3T100CN8 is widely adopted in university digital-logic labs, FPGA training boards, and maker-class development kits because of its low cost, breadboard-friendly TQFP-100 breakout boards, and rich Quartus II Web Edition toolchain. Students implement UART controllers, simple CPUs, VGA drivers, and state machines against the 2,910-LE fabric. The commercial 0–85 °C range is sufficient for lab environments, and the device's SRAM-based fabric supports unlimited ISP cycles for iterative learning.
Recommended
Legacy Interface Replication and Long-Life Support
Many long-lifecycle industrial and aerospace programs still need to build replacement boards for installed equipment that originally shipped with Cyclone I designs. The EP1C3T100CN8 preserves exact bitstream compatibility with Quartus II designs from the original deployment era, avoiding forced firmware rewrites. Its 100-TQFP footprint and Cyclone I JTAG scheme match legacy PCB test fixtures, minimising requalification effort for spare-part production.
Recommended
Recommended Products Summary
Engineering reference data for EP1C3T100CN8 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1C3T100C8N | EP1C3T100C7N | EP1C3T100C6N | EP1C3T100CB |
|---|---|---|---|---|---|
| Brand | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) |
| Package | 100-pin TQFP | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same |
| Logic Elements | 2,910 | 2,910 | 2,910 | 2,910 | 2,910 |
| Speed Grade | -8 | -8 | -7 | -6 | -8 (industrial grade) |
| Temperature Range | 0 °C to 85 °C (Commercial) | 0 °C to 85 °C (Commercial) | 0 °C to 85 °C (Commercial) | 0 °C to 85 °C (Commercial) | -40 °C to +100 °C (Industrial) |
| Lead Finish | Pb-free matte-tin | SnPb commercial (or Pb-free per suffix) | SnPb commercial (or Pb-free per suffix) | SnPb commercial (or Pb-free per suffix) | Pb-free matte-tin (industrial) |
| User I/O Pins | 65 | 65 | 65 | 65 | 65 |
| RAM Bits | 59,904 | 59,904 | 59,904 | 59,904 | 59,904 |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
Key Differentiators
- Lead-free matte-tin (Pb-free) finish (vs EP1C3T100C8N)
- Fastest speed grade available in the TQFP-100 family (vs EP1C3T100C6N)
- Commercial temperature range (vs EP1C3T100CB)
Design Notes
The EP1C3T100CN8 requires a clean 1.5 V core supply; pair it with an LDO such as a TLV1117-1.5V or a switching regulator with sufficient filtering. Estimated quiescent core current for an unconfigured Cyclone I device is approximately 50–100 mA depending on usage rate, so budget at least 250 mA on the 1.5 V rail. Decouple each VCCINT pin with a 0.1 µF X7R ceramic placed within 5 mm of the package pin.
TQFP-100 land pattern is straightforward but thermal dissipation benefits from a ground plane under the device. Estimated: at maximum junction-to-ambient thermal resistance of approximately 30 °C/W and a typical 0.5 W core dissipation, the junction rises ~15 °C above ambient. Provide at least 1 oz copper pour on all four inner layers and stitch the ground pin (31, 51, 72) returns directly to the ground plane.
Do not omit the EPCS serial configuration memory on a stand-alone board — the Cyclone I SRAM fabric loses its configuration on power-down. Tie nCONFIG high through a 1–10 kΩ pull-up, leave MSEL pins at the correct logic level for AS or PS mode (typically MSEL[1:0] = 00 for passive serial), and provide a 10 kΩ pull-up on nSTATUS and CONF_DONE. Forgetting to de-bounce the nCONFIG push-button is a frequent cause of intermittent boot failures in field returns.
Compliance Information
RoHS compliance inferred from CN suffix (Pb-free matte-tin); AEC-Q100 not qualified — choose EP1C3T100CB industrial variant or migrate to automotive-grade Cyclone IV/V/10 for AEC-Q100 requirements. REACH and halogen status not stated in the Verified Web Data and marked unknown.
