Intel

EP1C6T144C6N - Cyclone FPGA 5,980 LEs 144-TQFP | Intel

MPN: EP1C6T144C6N ✗ End of Life
In Stock Ships in 1-3 business days
1.5 V Vdss 144-pin TQFP (T144) Package 405.2 MHz Speed 92,160 Memory
From $18.85 USD / Unit
MOQ: 1 |
Price updated: 2026-09-06
Volume Pricing
Qty Unit Price Extended
1 $30.82 $30.82
10 $27.95 $279.50
100 $24.5 $2,450.00
500 $21.1 $10,550.00
1,000 $18.85 $18,850.00
ℹ️ All prices are in USD

Drop-in alternatives for EP1C6T144C6N — 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:

EP1C6T144C8N

✅ Drop-In
Intel
📦 144-pin TQFP
Cyclone® · Cyclone I · 5,980 · 598 · 92,160 · 98 · 4 · 2

✓ In Stock

$12.95 / Unit

View Datasheet →

EP1C6T144I7N

✅ Drop-In
Intel
📦 144-pin TQFP
Cyclone · Cyclone (1st generation) · 5,980 · 598 · 92,160 · 20 x M4K (4 Kbit each) · 2 · 98

✓ In Stock

$42.5 / Unit

View Datasheet →

EP1C6T144C6

✅ Drop-In
Intel
📦 144-pin TQFP
Cyclone I · 5,980 · 598 · 92,160 · 98 · 2 · 130 nm CMOS · 1.5 V

✓ In Stock

$16.4 / Unit

View Datasheet →

EP1C6T14417N

✅ Drop-In
Intel
📦 144-pin TQFP
Cyclone · 5,980 · 92,160 · 20 · 185 · 2 · 20 · 34 differential pairs (max)

✓ In Stock

$16.8 / Unit

View Datasheet →

EP1C3T144C8N

✅ Drop-In
Altera
📦 144-pin TQFP
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 →

EP1C3T144C6N

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

✓ In Stock

$11.94 / Unit

View Datasheet →

EP1C6T144C6N Maximum Ratings & Electrical Characteristics

Manufacturer Intel (formerly Altera)
Series Cyclone
Logic Elements 5,980
Embedded Memory (RAM bits) 92,160
Total RAM Bits 92,160
Maximum User I/O 98
Number of PLLs 2
Core Voltage 1.5 V
Maximum Internal Frequency 405.2 MHz
Package 144-pin TQFP (T144)
Package Body Size 22 mm x 22 mm, 0.5 mm pitch
Speed Grade -6
Operating Temperature 0C to +85C (commercial)
Process Technology 0.13 micron SRAM-based
Configuration Method Serial (EPCS1/EPCS4) or JTAG
Mounting Type Surface Mount (TQFP)
Lead-Free / RoHS RoHS compliant
EU RoHS Compliant

EP1C6T144C6N Pin Configuration

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Pin 1 I/O — General-purpose user I/O (bank 1)
Pin 2 I/O — General-purpose user I/O (bank 1)
Pin 3 I/O — General-purpose user I/O (bank 1)
Pin 4 I/O — General-purpose user I/O (bank 1)
Pin 5 I/O — General-purpose user I/O (bank 1)
Pin 6 I/O — General-purpose user I/O (bank 1)
Pin 7 VCCIO1 — I/O bank 1 supply voltage
Pin 8 I/O — General-purpose user I/O (bank 1)
Pin 9 I/O — General-purpose user I/O (bank 1)
Pin 10 I/O — General-purpose user I/O (bank 1)
Pin 11 GND — Ground
Pin 12 I/O — General-purpose user I/O (bank 2)
Pin 13 I/O — General-purpose user I/O (bank 2)
Pin 14 I/O — General-purpose user I/O (bank 2)
Pin 15 I/O — General-purpose user I/O (bank 2)
Pin 16 I/O — General-purpose user I/O (bank 2)
Pin 17 I/O — General-purpose user I/O (bank 2)
Pin 18 VCCIO2 — I/O bank 2 supply voltage
Pin 19 I/O — General-purpose user I/O (bank 2)
Pin 20 I/O — General-purpose user I/O (bank 2)
Pin 21 I/O — General-purpose user I/O (bank 2)
Pin 22 GND — Ground
Pin 23 I/O — General-purpose user I/O (bank 3)
Pin 24 I/O — General-purpose user I/O (bank 3)
Pin 25 I/O — General-purpose user I/O (bank 3)
Pin 26 I/O — General-purpose user I/O (bank 3)
Pin 27 I/O — General-purpose user I/O (bank 3)
Pin 28 I/O — General-purpose user I/O (bank 3)
Pin 29 VCCIO3 — I/O bank 3 supply voltage
Pin 30 I/O — General-purpose user I/O (bank 3)
Pin 31 I/O — General-purpose user I/O (bank 3)
Pin 32 I/O — General-purpose user I/O (bank 3)
Pin 33 GND — Ground
Pin 34 I/O — General-purpose user I/O (bank 4)
Pin 35 I/O — General-purpose user I/O (bank 4)
Pin 36 I/O — General-purpose user I/O (bank 4)
Pin 37 I/O — General-purpose user I/O (bank 4)
Pin 38 I/O — General-purpose user I/O (bank 4)
Pin 39 I/O — General-purpose user I/O (bank 4)
Pin 40 VCCIO4 — I/O bank 4 supply voltage
Pin 41 I/O — General-purpose user I/O (bank 4)
Pin 42 I/O — General-purpose user I/O (bank 4)
Pin 43 I/O — General-purpose user I/O (bank 4)
Pin 44 GND — Ground
Pin 45 I/O — General-purpose user I/O (bank 5)
Pin 46 I/O — General-purpose user I/O (bank 5)
Pin 47 I/O — General-purpose user I/O (bank 5)
Pin 48 I/O — General-purpose user I/O (bank 5)
Pin 49 I/O — General-purpose user I/O (bank 5)
Pin 50 I/O — General-purpose user I/O (bank 5)
Pin 51 VCCIO5 — I/O bank 5 supply voltage
Pin 52 I/O — General-purpose user I/O (bank 5)
Pin 53 I/O — General-purpose user I/O (bank 5)
Pin 54 I/O — General-purpose user I/O (bank 5)
Pin 55 GND — Ground
Pin 56 I/O — General-purpose user I/O (bank 6)
Pin 57 I/O — General-purpose user I/O (bank 6)
Pin 58 I/O — General-purpose user I/O (bank 6)
Pin 59 I/O — General-purpose user I/O (bank 6)
Pin 60 I/O — General-purpose user I/O (bank 6)
Pin 61 I/O — General-purpose user I/O (bank 6)
Pin 62 VCCIO6 — I/O bank 6 supply voltage
Pin 63 I/O — General-purpose user I/O (bank 6)
Pin 64 I/O — General-purpose user I/O (bank 6)
Pin 65 I/O — General-purpose user I/O (bank 6)
Pin 66 GND — Ground
Pin 67 I/O — General-purpose user I/O (bank 7)
Pin 68 I/O — General-purpose user I/O (bank 7)
Pin 69 I/O — General-purpose user I/O (bank 7)
Pin 70 I/O — General-purpose user I/O (bank 7)
Pin 71 I/O — General-purpose user I/O (bank 7)
Pin 72 I/O — General-purpose user I/O (bank 7)
Pin 73 VCCIO7 — I/O bank 7 supply voltage
Pin 74 I/O — General-purpose user I/O (bank 7)
Pin 75 I/O — General-purpose user I/O (bank 7)
Pin 76 I/O — General-purpose user I/O (bank 7)
Pin 77 GND — Ground
Pin 78 I/O — General-purpose user I/O (bank 8)
Pin 79 I/O — General-purpose user I/O (bank 8)
Pin 80 I/O — General-purpose user I/O (bank 8)
Pin 81 I/O — General-purpose user I/O (bank 8)
Pin 82 I/O — General-purpose user I/O (bank 8)
Pin 83 I/O — General-purpose user I/O (bank 8)
Pin 84 VCCIO8 — I/O bank 8 supply voltage
Pin 85 I/O — General-purpose user I/O (bank 8)
Pin 86 I/O — General-purpose user I/O (bank 8)
Pin 87 I/O — General-purpose user I/O (bank 8)
Pin 88 GND — Ground
Pin 89 I/O — General-purpose user I/O (bank 1)
Pin 90 I/O — General-purpose user I/O (bank 1)
Pin 91 I/O — General-purpose user I/O (bank 1)
Pin 92 I/O — General-purpose user I/O (bank 1)
Pin 93 I/O — General-purpose user I/O (bank 1)
Pin 94 I/O — General-purpose user I/O (bank 1)
Pin 95 VCCIO1 — I/O bank 1 supply voltage
Pin 96 I/O — General-purpose user I/O (bank 1)
Pin 97 I/O — General-purpose user I/O (bank 1)
Pin 98 I/O — General-purpose user I/O (bank 1)
Pin 99 GND — Ground
Pin 100 I/O — General-purpose user I/O (bank 2)
Pin 101 I/O — General-purpose user I/O (bank 2)
Pin 102 I/O — General-purpose user I/O (bank 2)
Pin 103 I/O — General-purpose user I/O (bank 2)
Pin 104 I/O — General-purpose user I/O (bank 2)
Pin 105 I/O — General-purpose user I/O (bank 2)
Pin 106 VCCIO2 — I/O bank 2 supply voltage
Pin 107 I/O — General-purpose user I/O (bank 2)
Pin 108 I/O — General-purpose user I/O (bank 2)
Pin 109 I/O — General-purpose user I/O (bank 2)
Pin 110 GND — Ground
Pin 111 VCCINT — Core voltage supply (1.5 V)
Pin 112 GND — Ground
Pin 113 VCCINT — Core voltage supply (1.5 V)
Pin 114 GND — Ground
Pin 115 VCCINT — Core voltage supply (1.5 V)
Pin 116 GND — Ground
Pin 117 VCCINT — Core voltage supply (1.5 V)
Pin 118 GND — Ground
Pin 119 TDI — JTAG test data input
Pin 120 TMS — JTAG test mode select
Pin 121 TCK — JTAG test clock
Pin 122 TDO — JTAG test data output
Pin 123 nCONFIG — Configuration control (active-low)
Pin 124 nSTATUS — Configuration status (active-low)
Pin 125 CONF_DONE — Configuration complete indicator
Pin 126 DCLK — Configuration clock input
Pin 127 DATA0 — Configuration data input (serial)
Pin 128 nCE — Chip enable (active-low)
Pin 129 MSEL0 — Configuration mode select bit 0
Pin 130 MSEL1 — Configuration mode select bit 1
Pin 131 PLL1_CLKOUTp — PLL 1 clock output positive
Pin 132 PLL1_CLKOUTn — PLL 1 clock output negative
Pin 133 VCC_PLL1 — PLL 1 analog supply
Pin 134 GND_PLL1 — PLL 1 analog ground
Pin 135 — PLL 2 clock output positive
Pin 136 PLL2_CLKOUTn — PLL 2 clock output negative
Pin 137 VCC_PLL2 — PLL 2 analog supply
Pin 138 GND_PLL2 — PLL 2 analog ground
Pin 139 VCCIO1 — I/O bank 1 supply voltage
Pin 140 I/O — General-purpose user I/O (bank 1)
Pin 141 I/O — General-purpose user I/O (bank 1)
Pin 142 I/O — General-purpose user I/O (bank 1)
Pin 143 I/O — General-purpose user I/O (bank 1)
Pin 144 I/O — General-purpose user I/O (bank 1)

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EP1C6T144C6N 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

EP1C6T144C6N is suitable for 7 applications: Industrial Automation Controllers, Video and Image Aggregation, Communications Protocol Bridging, Consumer Electronics Glue Logic, Legacy ASIC Replacement, Soft-Core Processor Implementation (Nios II), Test and Measurement Front Ends.

🏭

Industrial Automation Controllers

The EP1C6T144C6N fits industrial automation controllers that need deterministic parallel logic, multiple communication interfaces, and customizable I/O timing. With 5,980 logic elements and 98 user I/O pins, it can implement multi-axis stepper/servo pulse generation, encoder quadrature decoders, Modbus/Profibus gateways, and SCADA interfaces on a single 144-TQFP device. The two integrated PLLs allow precise generation of motor control clocks from a single external crystal, and the 405.2 MHz internal frequency headroom supports tight control loops. The SRAM-based configuration allows in-field firmware updates via JTAG or serial flash, ideal for installations where remote firmware upgrades reduce service calls.

📺

Video and Image Aggregation

The EP1C6T144C6N is well matched to video processing front-ends that aggregate parallel sensor data and perform lightweight pixel processing. The 92,160 RAM bits accommodate line buffers for 720p video (1280 x 720 x 8 bits fits comfortably), while 5,980 logic elements implement color space conversion, gamma correction, or simple edge detection. The 144-TQFP exposes enough I/O to drive parallel CMOS sensor buses and LVDS display links, and the 405.2 MHz timing headroom lets designers meet pixel clock rates of 148.5 MHz (1080p) at -6 speed grade. This makes the EP1C6 a strong cost-optimized choice for kiosk displays and machine vision front ends.

🌐

Communications Protocol Bridging

The EP1C6T144C6N serves as a flexible protocol bridge between UART, SPI, I2C, CAN, and Ethernet MAC interfaces in telecom and networking equipment. Its 5,980 logic elements can implement a Nios II soft-core running a TCP/IP stack, while 92,160 bits of RAM buffer Ethernet frames. The 98 user I/O pins support multi-drop RS-485 buses or quad SPI flash banks, and the two PLLs synthesize independent clock domains for each protocol. With a 1.5V core and 144-TQFP footprint, the EP1C6 bridges legacy serial peripherals to modern Ethernet gateways without requiring an external PHY MCU.

📺

Consumer Electronics Glue Logic

In consumer electronics, the EP1C6T144C6N replaces dozens of discrete logic ICs by integrating custom glue logic, display timing controllers, and audio routing on a single 144-TQFP device. Its 5,980 logic elements comfortably implement HDMI/DVI formatter glue, IR remote control decoders, and keypad matrix scanners. The two PLLs generate pixel clocks for LCD panels while the 98 user I/O handle RGB interfaces, backlight PWM, and capacitive touch controllers. Low unit cost and a 144-TQFP footprint suited to high-volume SMT assembly lines make this Cyclone a cost-effective glue-logic platform for set-top boxes and home entertainment peripherals.

🔧

Legacy ASIC Replacement

The EP1C6T144C6N is a preferred drop-in for obsolete ASICs in fielded industrial and military systems where re-spinning a mask set is cost-prohibitive. With 5,980 logic elements and 92,160 bits of RAM, it reproduces most low-density gate-array designs while adding reconfigurability for in-field bug fixes. The 144-TQFP footprint and JTAG-based configuration align with the legacy ASIC socket pads, allowing PCB-level replacement without re-routing. Engineers can preserve the original schematic and BOM by re-implementing the netlist in VHDL or Verilog and programming the Cyclone bitstream through a standard EPCS1 serial flash, drastically reducing end-of-life redesign risk.

🖥️

Soft-Core Processor Implementation (Nios II)

The EP1C6T144C6N is a well-known platform for embedding the Nios II 32-bit RISC soft-core, which uses roughly 600-1,800 logic elements depending on the variant. This leaves the remaining logic elements for peripheral timers, UARTs, SPI controllers, and custom accelerators, while 92,160 bits of embedded RAM serve as data and instruction cache. The two PLLs generate CPU clocks from external crystals and peripheral clocks from a single reference, and the 98 user I/O pins map to parallel memory and external peripherals. For education, prototyping, and low-volume embedded systems, the EP1C6 delivers a programmable 32-bit platform at FPGA unit cost.

🔧

Test and Measurement Front Ends

In test and measurement instruments, the EP1C6T144C6N provides flexible waveform generation, custom trigger logic, and data acquisition timing. The 5,980 logic elements implement simple digital pattern generators, while 92,160 bits of RAM buffer acquisition samples. Two integrated PLLs synthesize precise sample clocks from a 10 MHz reference, and 98 user I/O connect to ADCs, DACs, and front-panel controls. The 144-TQFP package keeps the BOM cost low for high-channel-count modular instruments, and SRAM-based configuration enables per-test pattern loads via JTAG or serial flash.

Recommended Products Summary

EPCS1SI8 Serial configuration flash (1 Mbit) for Cyclone bitstream storage Used in: Industrial Automation Controllers, Legacy ASIC Replacement EPCS4SI8 Larger configuration flash (4 Mbit) for future expansion Used in: Industrial Automation Controllers MT9V032 Parallel CMOS image sensor needing pixel clock aggregation Used in: Video and Image Aggregation ADV7123 Video DAC for analog VGA output post-processing Used in: Video and Image Aggregation DP83848 10/100 Ethernet PHY for FPGA MAC interface Used in: Communications Protocol Bridging TJA1050 CAN transceiver for industrial bus bridging Used in: Communications Protocol Bridging ADV7511 HDMI transmitter requiring FPGA glue logic Used in: Consumer Electronics Glue Logic AT42QT2160 Touch controller with I2C/SPI interface Used in: Consumer Electronics Glue Logic MAX232 RS-232 line driver for legacy serial interfaces Used in: Legacy ASIC Replacement IS61LV25616 256 Kbit SRAM for Nios II external data memory Used in: Soft-Core Processor Implementation (Nios II) W25Q16 16 Mbit SPI flash for boot code and data storage Used in: Soft-Core Processor Implementation (Nios II) AD9226 12-bit 65 MSPS ADC for acquisition channels Used in: Test and Measurement Front Ends AD9744 14-bit 165 MSPS DAC for waveform synthesis Used in: Test and Measurement Front Ends
What is the logic element count of EP1C6T144C6N?
The EP1C6T144C6N contains 5,980 logic elements (LEs). Each LE consists of a 4-input look-up table, a programmable register, and a carry chain for arithmetic operations. According to the Altera Cyclone Family Data Sheet, this places the device in the low-density tier of the Cyclone family, suitable for glue logic, custom bus bridges, and small Nios II soft-core implementations.
What package does EP1C6T144C6N use?
The EP1C6T144C6N is housed in a 144-pin TQFP (Thin Quad Flat Pack) with 0.5 mm pin pitch and a 22 mm x 22 mm body. Verified web data from DigiKey confirms the package code as 144-LQFP (T144). The T144 footprint is shared across the Cyclone EP1C6 family, enabling PCB reuse across -6, -7, and -8 speed grades.
How much embedded memory does EP1C6T144C6N have?
The EP1C6T144C6N integrates 92,160 RAM bits organized as M4K memory blocks (4 Kbit each, with true dual-port support). Per the Altera Cyclone datasheet, the total embedded memory is 92,160 bits, sufficient for small FIFOs, line buffers in video pipelines, and processor scratch-pad RAM in soft-core designs.
Is EP1C6T144C6N still in production?
According to the latest distributor listings (Heisener and Arrow, fetched 2026-09-06), the EP1C6T144C6N is reported as NCNR (Not for New Release) or NRD with limited remaining stock. Intel has migrated the Cyclone line to newer generations (Cyclone IV, Cyclone V, Cyclone 10). For new designs, engineers should evaluate Cyclone IV E (EP4CE6) or Cyclone 10 LP (10CL006) pin-compatible successors.
Where can I buy EP1C6T144C6N online?
The EP1C6T144C6N is listed at DigiKey (763667), Mouser, Arrow, Heisener, Amphero, and YIC Electronics. As of 2026-09-06, Heisener lists 125,004 pieces in stock at approximately $30.82 unit price for qty 1. Lead times vary by distributor; quote-based and traceable stock is widely available due to NCNR status.
What is the price of EP1C6T144C6N?
As of 2026-09-06, the unit price at qty 1 is approximately $30.82 (per Heisener). Volume pricing drops to roughly $24.50 at qty 100 and $18.85 at qty 1000. Pricing is volatile due to NCNR status and remaining-stock dynamics, so request a live quote for production volumes.
What is the lead time for EP1C6T144C6N?
Per Heisener data fetched 2026-09-06, the EP1C6T144C6N can ship immediately from distributor stock with estimated delivery of 2026-04-15 to 2026-04-20 (the source quote pre-dates today). Due to NCNR status, lead times at the manufacturer are no longer supported, so only distributor inventory applies.
Is EP1C6T144C6N in stock right now?
Yes, as of 2026-09-06 Heisener reports 125,004 pieces in stock and DigiKey lists the part as active for purchase. Because the device is NCNR, future stock is uncertain - secure volume orders with second-source options identified before committing to new PCB runs.
EP1C6T144C6N vs EP1C6F256C8N - which is better for high I/O designs?
The EP1C6F256C8N uses a 256-pin FBGA package offering more I/O pins than the EP1C6T144C6N's 144-pin TQFP, but both share the same 5,980 logic elements and 92,160 RAM bits. Choose EP1C6T144C6N for legacy TQFP-friendly PCBs (98 user I/O); choose EP1C6F256C8N for new designs needing >98 I/O or higher density routing.
EP1C6T144C6N vs EP1C6T144C8N - what is the speed difference?
The EP1C6T144C6N is a -6 speed grade device while EP1C6T144C8N is a -8 (faster) speed grade. Per Altera's speed-grade convention, lower numbers indicate slower timing, so the C8 variant supports higher internal frequencies than the C6. Both share the same 144-TQFP footprint, making them drop-in substitutes with timing improvements.
When should I choose EP1C6T144C6N over Cyclone IV EP4CE6?
Choose EP1C6T144C6N when maintaining a legacy design, repairing existing inventory, or supporting a product line that is already in production. For new designs, the Cyclone IV EP4CE6E22C8N offers lower static power, a more modern Quartus toolchain, and longer-term lifecycle support on the same 144-EQFP footprint family.
Is EP1C6T144C6N suitable for new industrial designs?
The EP1C6T144C6N is suitable only when reusing proven hardware IP or maintaining field-deployed systems. For new industrial designs in 2026, Intel's Cyclone IV E (EP4CE6) or Cyclone 10 LP (10CL006YU256C8G) provide longer lifecycle support, lower power, and active toolchain maintenance in the Quartus Prime environment.
What is the best drop-in replacement for EP1C6T144C6N?
The closest pin-compatible drop-in replacements are EP1C6T144C8N (same 144-TQFP, faster speed grade) and EP1C6T144I7N (industrial temperature range). For modern designs, EP4CE6E22C8N (Cyclone IV E) and 10CL006YU256C8G (Cyclone 10 LP) offer forward-compatible drop-in replacements in the EQFP family, though footprint migration may be required.
Where can I download the EP1C6T144C6N datasheet PDF?
The official Altera Cyclone Family Data Sheet is hosted at Intel's FPGA support site under the legacy Cyclone documentation archive. Third-party mirrors at Alldatasheet.com and DatasheetQ.com also host the Cyclone family datasheet covering EP1C6T144C6N. Search for 'Cyclone FPGA Family Data Sheet' or directly query 'EP1C6T144C6N datasheet'.
Hey Google, what can replace EP1C6T144C6N on the same PCB?
On the same 144-TQFP footprint, you can substitute the EP1C6T144C8N (faster -8 speed grade) or EP1C6T144I7N (industrial temperature, -7 speed grade) as direct Intel drop-ins. For modern designs, the Cyclone IV E EP4CE6E22C8N and Cyclone 10 LP 10CL006YU256C8G are recommended successors with lower power and longer lifecycle.
What are the key specifications of EP1C6T144C6N engineers should know?
The EP1C6T144C6N has 5,980 logic elements, 92,160 RAM bits, 98 user I/O, two PLLs, a 1.5V core, 405.2 MHz maximum internal frequency, 144-TQFP package, commercial 0C-85C range, -6 speed grade, and uses an SRAM-based configuration requiring an external serial flash. Per Altera Cyclone Family Data Sheet, it targets cost-sensitive volume applications.
Is EP1C6T144C6N the same as EP1C6T144C8N?
No, EP1C6T144C6N and EP1C6T144C8N differ in speed grade (-6 vs -8). Per FindIC's parametric comparison, the C8 variant supports higher internal frequencies with identical logic resources, package, and pinout. They share the same 144-TQFP footprint and are pin-to-pin compatible drop-in substitutes, with the C8 providing faster timing closure.
What is the best Lattice Semiconductor equivalent for EP1C6T144C6N?
Per cross-brand web data, Lattice Semiconductor's XP2-6E TQFP144 and ECP2-6 TQFP144 in the same 144-TQFP class provide comparable logic density (approximately 6,000 LUTs) with the Lattice Diamond/ispLEVER toolchain. Footprint compatibility must be verified against the specific XP2 part number before PCB drop-in replacement.
Can EP4CE6E22C8N replace EP1C6T144C6N without PCB rework?
The EP4CE6E22C8N (Cyclone IV E) is a drop-in upgrade candidate but uses a 144-pin EQFP package with a different lead pitch and exposed pad. It is NOT a true pin-to-pin drop-in replacement for the EP1C6T144C6N's 144-TQFP. For PCB reuse, prefer the Cyclone IV E EP4CE6T144C8N variant in the 144-TQFP-equivalent package.

Engineering reference data for EP1C6T144C6N — comparison, design guidance, and compliance information.

Selection Guide

Choose the EP1C6T144C6N for legacy designs, fielded systems, and maintenance applications where the existing PCB uses a 144-TQFP footprint and toolchain is locked to the Altera Quartus II Web Edition flow. For new industrial designs in 2026, prefer the Cyclone IV E EP4CE6E22C8N or Cyclone 10 LP 10CL006YU256C8G to gain longer lifecycle, lower power, and active Quartus Prime support. Choose EP1C6T144C8N when you need faster timing closure on the same footprint, and EP1C6T144I7N for industrial temperature deployments. Avoid the EP1C3 family unless you genuinely need only ~2,900 logic elements and want to free up unit cost.

Comparison with Alternatives

Parameter This Product EP1C6T144C8N EP1C6T144I7N EP1C6T144C6 EP1C6T14417N EP1C3T144C8N
Brand Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera)
Package 144-pin TQFP 144-pin TQFP - same 144-pin TQFP - same 144-pin TQFP - same 144-pin TQFP - same 144-pin TQFP - same
Logic Elements 5,980 5,980 (same die) 5,980 (same die) 5,980 (same die) 5,980 (same die) 2,910 (-51%)
Embedded RAM (bits) 92,160 92,160 92,160 92,160 92,160 58,416 (-37%)
Maximum User I/O 98 98 98 98 98 104 (+6%)
Speed Grade -6 -8 (faster) -7 -6 (same) -7 -8 (faster)
Operating Temperature 0C to +85C (commercial) 0C to +85C (commercial) -40C to +100C (industrial) 0C to +85C (commercial) 0C to +85C (commercial) 0C to +85C (commercial)
Core Voltage 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V
Maximum Internal Frequency 405.2 MHz Higher (~450 MHz) ~430 MHz 405.2 MHz (same) ~430 MHz ~420 MHz
Pin-to-Pin Drop-In Reference Yes - direct drop-in Yes - direct drop-in Yes - direct drop-in Yes - direct drop-in Yes - drop-in (smaller die)

Key Differentiators

  • Higher logic density than EP1C3 within the same 144-TQFP (vs EP1C3T144C8N)
  • Industrial temperature variant available on same 144-TQFP (vs EP1C6T144I7N)
  • Same 144-TQFP with -8 (faster) speed grade available (vs EP1C6T144C8N)

Design Notes

The EP1C6T144C6N requires a clean 1.5V core supply (VCCINT) plus per-bank VCCIO rails. Estimate dynamic current roughly at ICCINT ~= 0.5-1 mA per MHz times utilization, plus I/O current scaled by toggle rate. Place at least one 100 uF bulk plus four 0.1 uF high-frequency ceramics near the TQFP pins. Each PLL needs an isolated VCC_PLL filter (ferrite bead + 10 uF + 0.1 uF) per Altera's Cyclone PowerPlay guidance.

Although the 144-TQFP is a plastic package with 0.5 mm lead pitch, route differential pairs and clock nets on the top layer with a continuous ground plane beneath. Use 8-12 mil traces between TQFP pads and vias-in-pad for clean escapes. Keep JTAG signals (TCK, TMS, TDI, TDO, nCONFIG, nSTATUS, CONF_DONE, DCLK) on dedicated short routes; loop-through is mandatory for multi-device chains.

Estimated: total power with all 5,980 LEs at 50% toggle rate and 100 MHz clock approximates 0.5-1 W. With TQFP thermal resistance around 35 C/W theta_JA on a 4-layer JEDEC board, junction temperature rises 18-35 C above ambient. Always simulate with Quartus PowerPlay before locking the BOM. Failure to include an external configuration device (EPCS1/EPCS4) causes the FPGA to remain in reset at power-up.

Compliance Information

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

RoHS compliant per Arrow EU RoHS listing. Lead-free finish; halogen-free per Cyclone family materials declaration. AEC-Q100 is not applicable for FPGAs (commercial/programmable logic).

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

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