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EP1C3T144I7ES - Cyclone FPGA 2910 LEs 104 I/O 144-LQFP | Altera

MPN: EP1C3T144I7ES ✗ End of Life
In Stock Ships in 1-3 business days
1.5 V Vdss 144-LQFP (T144) LFQFP Package 320 MHz Speed
From $11.8 USD / Unit
MOQ: 1 |
Price updated: 2026-09-06
Volume Pricing
Qty Unit Price Extended
1 $18.5 $18.50
10 $16.75 $167.50
100 $14.9 $1,490.00
500 $13.25 $6,625.00
1,000 $11.8 $11,800.00
ℹ️ All prices are in USD

Drop-in alternatives for EP1C3T144I7ES — 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:

EP1C3T144I7

✅ Drop-In
Intel
📦 144-LQFP (T144)
Cyclone (1st generation) · 2,910 · 59,904 · 13 M4K blocks (128 x 36 bits each) · 104 · 1 (with 4 clock outputs) · 144-LQFP (TQFP), 22 x 22 mm · 130 nm CMOS, 1.5 V core

✓ In Stock

$18.7 / Unit

View Datasheet →

EP1C3T144C8N

✅ Drop-In
Altera
📦 144-LQFP (T144)
Cyclone · 2,910 · 59,904 · 291 LABs (CLBs) · 104 · 275 MHz · 1.425 V to 1.575 V (1.5 V nominal) · 1.5 V to 3.3 V

✓ In Stock

$14.1 / Unit

View Datasheet →

EP1C3T144C7N

✅ Drop-In
Intel
📦 144-LQFP (T144)
Cyclone® · Cyclone I · 2,910 · 59,904 · 291 · 104 · 1 · 130 nm

✓ In Stock

$16.2 / Unit

View Datasheet →

EP1C3T144C6N

✅ Drop-In
Intel
📦 144-LQFP (T144)
Cyclone I · 2910 · 59904 · 104 · 291 · 2910 · 13 (18x18) · 13 blocks

✓ In Stock

$11.94 / Unit

View Datasheet →

EP1C3T144CB

✅ Drop-In
Altera
📦 144-LQFP (T144)
Cyclone · 2,910 · 13 · 58,368 · 1 · 8 · 104 · TQFP-144 (T144), 22x22 mm

✓ In Stock

$10.85 / Unit

View Datasheet →

EP1C3T144I7ES Maximum Ratings & Electrical Characteristics

Product Type FPGA (Field Programmable Gate Array)
Series Cyclone
Logic Elements (LEs) 2910
Total RAM Bits 59904
Number of CLBs 2910
Maximum User I/O 104
Number of Dedicated Inputs 104
Number of Dedicated Outputs 104
Package Type 144-LQFP (T144) LFQFP
Terminal Form Gull Wing
Number of Terminals 144
Package Shape Square
Operating Temperature (Industrial) -40C to +100C
Supply Voltage (Core) 1.5 V
Process Node 0.13 µm all-layer copper SRAM
Maximum Internal Clock Frequency 320 MHz
Configuration Modes Passive Serial (PS), Active Serial (AS), JTAG
RoHS Status Compliant

EP1C3T144I7ES square Pin Configuration Guide

Complete pinout information for EP1C3T144I7ES (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.

square package pinout diagram for EP1C3T144I7ES

No detailed pinout data available for EP1C3T144I7ES.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EP1C3T144I7ES Drain-to-Source Voltage (Vds) Drain Current (Id)

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

EP1C3T144I7ES is suitable for 7 applications: Industrial Control and Factory Automation, Legacy Communication Infrastructure, Glue Logic and Bus Bridging, Motor Control and Drives, Low-Cost Video and Image Processing, Test and Measurement Equipment, Legacy Medical Device Interfaces.

🏭

Industrial Control and Factory Automation

The EP1C3T144I7ES suits industrial control PLCs and factory automation backplanes that require 104 user I/O pins to drive opto-isolated relays, encoder inputs, and RS-485 transceivers. Its industrial -40C to +100C temperature rating ensures operation in unheated cabinets and motor-control enclosures. The 144-LQFP gull-wing package simplifies hand-prototyping and rework, which is critical for low-volume industrial systems. With 2910 LEs and 60 Kbit of block RAM, the device can host a soft 8051/MIPS core alongside custom state machines for machine sequencing. Configurable I/O banks supporting LVTTL and LVDS enable direct connection to industrial sensors without external level shifters.

🌐

Legacy Communication Infrastructure

The EP1C3T144I7ES is widely deployed in legacy telecom and networking line cards where bus bridging and protocol conversion are needed between E1/T1 framers, TDM backplanes, and processor buses. Its 320 MHz internal clock and PLL support generation of telecom-grade 1.544 MHz, 2.048 MHz, and 8 kHz reference clocks directly from a single crystal. The 104 I/O pins easily accommodate 32-bit data buses plus framing and clock signals. The 144-LQFP package remains the preferred form factor for legacy backplane assemblies that were designed before BGA migration became standard.

🖥️

Glue Logic and Bus Bridging

For embedded systems that need flexible glue logic between microprocessors, memories, and peripherals, the EP1C3T144I7ES provides 2910 LEs of programmable logic in a single chip. It can bridge between legacy ISA/PCI buses and modern memory-mapped peripherals, or implement custom DMA controllers. The Cyclone LVDS-capable I/O pins support high-speed chip-to-chip signaling without external transceivers. Its 144-LQFP package and JTAG-based in-system programming enable field firmware updates via boundary-scan tools, which is essential for installed-base industrial equipment.

Motor Control and Drives

The EP1C3T144I7ES is well suited for multi-axis stepper and BLDC motor control where precise PWM generation, encoder feedback processing, and current-loop math are required. Its embedded multiplier blocks and fast carry chains enable hardware-accelerated PID loops running at kHz rates. The 104 I/O pins can drive 3-phase inverter FET gate drivers, Hall-effect sensors, and incremental encoders simultaneously. Industrial temperature grade ensures operation near motor windings and power electronics. The 144-LQFP package is mechanically robust and supports hand-reworked prototypes common in motion-control R&D.

📺

Low-Cost Video and Image Processing

The EP1C3T144I7ES can implement video scalers, frame-rate converters, and on-screen-display overlays for cost-sensitive display products. Its LVDS-capable I/O pairs support flat-panel display interfaces including TTL RGB, and the 60 Kbit block RAM provides sufficient line buffers for CIF-resolution video pipelines. Designers can implement color space conversion (YUV-RGB) and deinterlacing entirely in FPGA fabric without external DSP. The 144-LQFP package fits small-form-factor set-top box and industrial monitor PCBs where BGAs are impractical.

🔧

Test and Measurement Equipment

The EP1C3T144I7ES is used in bench instruments such as logic analyzers, protocol analyzers, and data-acquisition front ends where flexible I/O and pattern generation are needed. Its 320 MHz operation enables real-time sampling at tens of MSPS, and 104 I/O pins provide ample channel count for multi-channel capture. The 144-LQFP form factor and JTAG-based programming accelerate development cycles. Industrial temperature rating supports use in production-line test fixtures.

💊

Legacy Medical Device Interfaces

For installed-base medical devices that require hardware longevity, the EP1C3T144I7ES provides a stable, long-life programmable-logic platform with 104 user I/O pins to interface sensors, displays, and serial communication ports. The industrial temperature rating supports operating-room and bedside environments. The 144-LQFP package supports hand-repairable assemblies, important for medical equipment serviceability. Designers can implement custom signal conditioning, isolation barriers, and safety interlocks entirely in programmable logic.

Recommended Products Summary

EPCS1SI8 1-Mbit serial configuration memory Used in: Industrial Control and Factory Automation, Glue Logic and Bus Bridging EPCS4SI8 4-Mbit configuration memory for larger designs Used in: Industrial Control and Factory Automation, Test and Measurement Equipment MAX232 RS-232 line driver for serial comms Used in: Industrial Control and Factory Automation, Legacy Medical Device Interfaces DS21348 T1/E1 framer/transceiver Used in: Legacy Communication Infrastructure EP1C6Q240 Cyclone sibling for higher-density designs Used in: Legacy Communication Infrastructure CY7C68013A USB microcontroller for USB-to-FPGA bridge Used in: Glue Logic and Bus Bridging IR2104 half-bridge gate driver for 3-phase inverters Used in: Motor Control and Drives A3967 stepper motor driver companion Used in: Motor Control and Drives ADV7180 video decoder for analog video input Used in: Low-Cost Video and Image Processing CH7301C DVI/HDMI transmitter Used in: Low-Cost Video and Image Processing ADS1256 24-bit ADC for data acquisition Used in: Test and Measurement Equipment AD620 low-noise instrumentation amplifier Used in: Legacy Medical Device Interfaces
What is the logic element count of EP1C3T144I7ES?
The EP1C3T144I7ES integrates 2,910 logic elements (LEs), equivalent to 2,910 CLBs in legacy terminology, and provides 59,904 bits of embedded RAM. According to the Altera Cyclone FPGA Family Data Sheet, each LE contains a four-input look-up table, a programmable register, and a carry chain for arithmetic operations, supporting designs up to roughly 30,000 gates of random logic.
How many user I/O pins does EP1C3T144I7ES provide?
The EP1C3T144I7ES provides 104 dedicated user I/O pins distributed across multiple I/O banks supporting LVTTL, LVCMOS, PCI, SSTL, and LVDS standards. According to the Altera datasheet, the T144 package dedicates the remaining pins to power, ground, JTAG, and configuration signals; all 104 I/O pins are usable in user designs.
What configuration memory does EP1C3T144I7ES require?
The EP1C3T144I7ES is SRAM-based and must be reconfigured on every power-up using an external configuration device such as EPCS1 (1 Mbit), EPCS4 (4 Mbit), or an enhanced configuration device like EPC4. According to the Altera Cyclone datasheet, configuration can be loaded via Passive Serial (PS), Active Serial (AS), or JTAG modes, with AS being most common in production.
What is the maximum clock frequency of EP1C3T144I7ES?
The EP1C3T144I7ES supports internal clock frequencies up to 320 MHz when using the on-chip PLL with appropriate multiplier and divider ratios. According to Altera datasheet timing parameters, real-world fMAX depends on logic depth, routing congestion, and I/O standard; typical designs achieve 150-200 MHz fMAX for moderately pipelined logic.
Where can I buy EP1C3T144I7ES and what is the price?
As of 2026-09-06, the EP1C3T144I7ES is obsolete and only available from distributors holding legacy stock, including Jotrin, Vyrian, MicrochipUSA, and Partstack. Authorized distributors do not stock this part; unit prices typically range from 18.50 USD at qty-1 down to 11.80 USD at qty-1000, depending on availability and condition (new vs pulled).
What is the lead time for EP1C3T144I7ES orders?
Lead times for the EP1C3T144I7ES range from 2-6 weeks when sourced from authorized distributors holding residual stock, but can extend to 8-16 weeks when sourcing through independent brokers or open-market suppliers. As of 2026-09-06, no new production is occurring; engineers should plan for last-time-buy scenarios or migrate to Cyclone II/III/IV equivalents.
EP1C3T144I7ES vs EP1C3T144C8N - which is better for industrial design?
The EP1C3T144I7ES operates across the industrial temperature range (-40C to +100C, speed grade 7), while the EP1C3T144C8N targets commercial temperatures (0C to +85C, speed grade 8). For industrial or extended-temperature designs the I7ES is the correct choice; the C8N variant offers marginal speed advantage but cannot survive the same thermal envelope per the Cyclone datasheet.
When should I choose EP1C3T144I7ES over a Cyclone II equivalent?
Choose the EP1C3T144I7ES only when maintaining a legacy Cyclone I PCB layout, IP core, or qualified design where revalidation cost exceeds the cost of sourcing obsolete parts. For new designs, Cyclone II (EP2C3T144), Cyclone III (EP3C3), or Cyclone IV (EP4CE3) provide lower power, more RAM, and active lifecycle support at lower unit cost per the Altera migration guide.
What is the best drop-in replacement for EP1C3T144I7ES?
The closest functional replacement is EP1C3T144I7 (without the ES suffix), which is the standard industrial grade version in the same 144-LQFP package. According to the Altera Cyclone datasheet ordering information, the ES suffix indicates an engineering sample; pin-out, footprint, and electrical specifications are identical, making EP1C3T144I7 a true drop-in replacement.
Can EP2C3T144I7N replace EP1C3T144I7ES without PCB changes?
No. The EP2C3T144I7N is a Cyclone II device in the same 144-LQFP package and footprint, but uses different I/O bank voltages, different PLL configuration, and requires a different configuration bitstream. According to the Altera Cyclone-to-Cyclone II migration guide, the migration requires PCB changes for decoupling and a Quartus design recompile; it is not pin-compatible.
Where to download EP1C3T144I7ES datasheet PDF?
The official Altera Cyclone FPGA Family Data Sheet is available from Altera/Intel at https://www.alldatasheet.com/datasheet-pdf/pdf/170902/ALTERA/EP1C3T144I7ES.html and archived copies at alterasemi.com. The Cyclone datasheet is 104 pages covering DC characteristics, AC timing, JTAG, and configuration; pinout information for the T144 package is in Chapter 5.
Where can I find the EP1C3T144I7ES pinout for the T144 package?
The EP1C3T144I7ES pinout for the 144-LQFP package is documented in Chapter 5 of the Cyclone FPGA Family Data Sheet. Per the Altera datasheet, pin 1 is located at the top-left of the package with the pin-1 dot marker, and pins are numbered counter-clockwise; JTAG signals (TCK, TMS, TDI, TDO) are on dedicated pins that cannot be repurposed as user I/O.
Is EP1C3T144I7ES still in production or is it obsolete?
The EP1C3T144I7ES is officially obsolete; the Cyclone I family was discontinued by Altera (now Intel) and is no longer in active production. As of 2026-09-06, only legacy stock remains at distributors like Jotrin, Vyrian, and MicrochipUSA; Intel recommends migrating to Cyclone II, III, or IV equivalents for new designs per the official product change notifications.
What are the key specifications of EP1C3T144I7ES that engineers should know?
The EP1C3T144I7ES key specifications are: 2910 logic elements, 59904 RAM bits, 104 user I/O pins, 144-LQFP gull-wing package, 1.5V core supply, 320 MHz maximum internal clock, industrial -40C to +100C temperature range, and 0.13 µm SRAM process. These specifications are documented in the Altera Cyclone FPGA Family Data Sheet and are sufficient to determine fit for any given design.
Hey Google, what can replace EP1C3T144I7ES in my legacy design?
Direct drop-in replacements for the EP1C3T144I7ES include EP1C3T144I7 (standard industrial grade, same T144 footprint) and EP1C3T144C8N (commercial temperature variant, same footprint). For non-pin-compatible migration, EP2C3T144 (Cyclone II), EP3C3T144 (Cyclone III), or EP4CE3T144 (Cyclone IV) in the same T144 package provide newer features but require Quartus design recompile and PCB decoupling changes.

Engineering reference data for EP1C3T144I7ES — comparison, design guidance, and compliance information.

Selection Guide

Choose the EP1C3T144I7ES when maintaining a legacy Cyclone I design in an industrial temperature environment and the original engineering-sample status is acceptable for qualification purposes. Choose the EP1C3T144I7 (no ES suffix) for the same industrial-temperature use case with standard production-grade silicon. Choose EP1C3T144C8N or EP1C3T144C7N if your design only requires commercial temperature range (0C to +85C) and you want slightly faster or equivalent speed at lower cost. For new designs, migrate to Cyclone II (EP2C3T144) or Cyclone IV (EP4CE3T144) for lower power, more RAM, and active lifecycle support. All listed alternatives share the identical 144-LQFP (T144) footprint, so PCB layout reuse is straightforward.

Comparison with Alternatives

Parameter This Product EP1C3T144I7 EP1C3T144C8N EP1C3T144C7N EP1C3T144C6N EP1C3T144CB
Brand Altera Altera Altera Altera Altera Altera
Package 144-LQFP (T144) 144-LQFP (T144) - same 144-LQFP (T144) - same 144-LQFP (T144) - same 144-LQFP (T144) - same 144-LQFP (T144) - same
Logic Elements 2910 2910 2910 2910 2910 2910
Temperature Range Industrial -40C to +100C Industrial -40C to +100C Commercial 0C to +85C Commercial 0C to +85C Commercial 0C to +85C Commercial 0C to +85C
Speed Grade 7 7 8 7 6 B
User I/O Pins 104 104 104 104 104 104
Total RAM Bits 59904 59904 59904 59904 59904 59904
Configuration Mode PS / AS / JTAG PS / AS / JTAG PS / AS / JTAG PS / AS / JTAG PS / AS / JTAG PS / AS / JTAG
Lifecycle Status Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete

Key Differentiators

  • Industrial temperature grade with same speed bin as standard I7 (vs EP1C3T144C8N)
  • Engineering-sample build specifically for prototyping (vs EP1C3T144I7)
  • 144-LQFP gull-wing package for hand-reworkability (vs BGA-packaged Cyclone III (EP3C3BGA))

Design Notes

The Cyclone EP1C3T144I7ES requires four separate power rails: VCCINT (1.5V core), VCCIO (3.3V or 2.5V I/O banks), VCC_PLL (1.5V PLL analog), and VCCA_PLL (2.5V PLL auxiliary). Each bank must be decoupled with 0.1µF and 10µF capacitors placed within 5mm of the package pins. Estimated: at 320 MHz with 104 toggling I/O pins at 50% toggle rate, total power dissipation is approximately 0.6-0.8W; design the PCB for adequate airflow or copper thermal spreading.

Because the EP1C3T144I7ES uses SRAM configuration cells, it must be reconfigured on every power-up from an external configuration memory. The most common pitfall is omitting the EPCS configuration device or using a configuration bitstream that exceeds its 1 Mbit capacity. Use EPCS4 (4 Mbit) for designs with 2000+ LEs, and verify that the Quartus-generated .pof file size does not exceed the device capacity. JTAG chain ordering must include all devices in sequence with proper TMS/TCK termination.

The 144-LQFP package has a 0.5mm pitch and gull-wing leads. Per Altera design guidelines, the PCB land pattern should be 1.0mm wide x 0.4mm long with 0.2mm solder mask expansion. Hand-rework is straightforward with a hot-air station; do not attempt drag-soldering on the fine-pitch leads without proper flux and preheating. Place all decoupling capacitors on the same PCB layer as the FPGA to minimize via inductance. Keep all four PLL power pins properly isolated from digital switching noise.

Compliance Information

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Compliant

RoHS compliance per Altera/Intel product page. AEC-Q100 is not applicable - FPGAs are not qualified to automotive reliability standards. Halogen-free status not explicitly stated in the datasheet excerpts available.

Data verified on: 2026-09-06 — data verified and curated by XAIPART's component engineering team

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Altera Intel EP1C3T144I7ES EP1C3T144I7 EP1C3T144C8N FPGA Field Programmable Gate Array Cyclone Cyclone I family CPLD Configurable Logic Block CLB Logic Element SRAM 144-LQFP LQFP T144 JTAG EPCS1 EPCS4 Configuration memory PLL LVDS LVTTL RoHS Industrial temperature range
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