Intel

EP1C6T144I8 - Cyclone FPGA 5980 LE, 144-TQFP, Industrial | Intel

MPN: EP1C6T144I8 ✗ Cuối đời
1.5 V Vdss LVTTL, LVCMOS, SSTL, LVDS (differential pairs) Rds(on) 144-pin TQFP (TQFP-144) Package 275.03 MHz Speed
MOQ: 1 |

EP1C6T144I8 Tóm tắt

The Intel (Altera) EP1C6T144I8 is a member of the first-generation Cyclone FPGA family, fabricated on a 1.5V, 130nm CMOS process and delivering 5,980 logic elements, 92,160 RAM bits, and 2 PLLs in a 144-pin TQFP package with industrial temperature grade.

What is a Cyclone FPGA? A Field-Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnect, and dedicated hard IP such as block RAM, PLLs, and I/O serializers. Unlike fixed-function ASICs, FPGAs are programmed by the end user after manufacture, making them ideal for prototyping, low-volume production, and designs that must evolve in the field. The Cyclone family sits in the low-cost, low-power tier of the Intel FPGA portfolio - positioned below Cyclone II/III/IV/V and well below Stratix and Arria families. Within this hierarchy: Cyclone -> low-cost FPGA -> programmable logic -> semiconductor IC. The EP1C6 variant occupies the mid-density position in the original Cyclone lineup, between EP1C3 (smaller) and EP1C12/EP1C20 (larger).

Key features of the EP1C6T144I8 include 5,980 logic elements, 92,160 bits of embedded RAM (M4K blocks), 98 maximum user I/O pins, two analog PLLs with four outputs each, and support for LVTTL, LVCMOS, SSTL, and differential I/O standards. The 144-TQFP package offers a 1.0mm lead pitch and gull-wing leads compatible with standard SMT assembly and hand-rework, eliminating the need for fine-pitch BGA handling.

Technically, the EP1C6T144I8 is built on a 1.5V core with multi-voltage I/O banks supporting 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V interfacing. The device uses SRAM-based configuration memory, requiring a configuration flash or controller on every board. Configuration is via passive serial (PS), active serial (AS), or JTAG. The I8 suffix denotes the industrial temperature grade (-40C to +100C ambient, junction to +135C).

Typical applications include industrial motor control, video processing pipelines, custom peripheral expansion, glue logic replacement, software-defined radio front-ends, and educational/development platforms. The Cyclone I/O flexibility makes it well-suited for bridging legacy 5V buses to modern 3.3V processors.

When designing with this part, ensure the configuration scheme is selected (AS/PS/JTAG) and that a valid configuration clock source is present at power-up. Unused pins should be left floating per datasheet guidance; the TQFP-144 footprint simplifies prototype bring-up versus BGA alternatives.

This page synthesizes distributor pricing, drop-in Cyclone family alternatives, and practical design notes not found in the manufacturer datasheet alone.

Bộ thay thế dễ dàng lắp đặt cho EP1C6T144I8 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

Các biến thể trong loạt này

Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EP1C6T144I8 (cùng hình factor và footprint) — khác nhau ở Package, Speed Grade, RoHS Status, Process Technology, Family.

Altera
Package: 240-pin PQFP (Plastic Quad Flat Pack)
Speed Grade: -8 (mid-grade)
RoHS Status: Compliant (lead-free PQFP)
So sánh với EP1C6T144I8 →
Altera
Package: 144-TQFP (TQFP-144)
RoHS Status: Compliant
Process Technology: CMOS, 130 nm
So sánh với EP1C6T144I8 →
Intel
Speed Grade: 8
RoHS Status: unknown
Process Technology: 130 nm
So sánh với EP1C6T144I8 →
Altera
Package: 144-pin TQFP (144-LQFP)
Speed Grade: 8 (C8 order option; lower number is faster)
So sánh với EP1C6T144I8 →
Intel
Package: 144-pin TQFP
Speed Grade: C8 (commercial)
RoHS Status: Compliant
So sánh với EP1C6T144I8 →
Intel
Package: 144-LQFP (TQFP-144)
Speed Grade: I7 (industrial, slowest)
RoHS Status: Compliant
So sánh với EP1C6T144I8 →
Intel
Package: TQFP-144 (22x22 mm, 0.5 mm pitch)
Speed Grade: 8
RoHS Status: Compliant
So sánh với EP1C6T144I8 →
Altera
Package: 144-LQFP (T144)
Speed Grade: I (lead-free / industrial)
RoHS Status: Compliant (Pb-free, suffix 'N')
So sánh với EP1C6T144I8 →

EP1C6T144I7N

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

Liên hệ để biết giá

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EP1C6T144C8N

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

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EP1C6T144C8

✅ Drop-In
Intel
📦 TQFP-144
Cyclone · 5980 · 92160 · 98 · 598 · 144-pin TQFP (TQFP-144) · Surface Mount · 130 nm

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EP1C6T144C7N

✅ Drop-In
Altera
📦 TQFP-144
Cyclone · Cyclone I · Altera (Intel) · 5980 · 5980 · 92160 · 98 · 598

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EP1C6Q240I8N

✅ Drop-In
Altera
📦 TQFP-144
Cyclone · 5,980 · 130 nm CMOS · 1.5 V · 275.03 MHz · 92,160 (20 M4K blocks x 4,608 bits) · 2 · 185

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EP1C6T144I8 Tỷ lệ tối đa & tính chất điện

Family Cyclone
Logic Elements 5,980
Total RAM Bits 92,160
Embedded RAM Blocks 20 (M4K)
Maximum User I/O 98
PLLs 2
Process Technology 130 nm CMOS
Core Voltage 1.5 V
Hộp 144-pin TQFP (TQFP-144)
Lead Pitch 1.0 mm
Temperature Grade Industrial (-40C to +100C ambient)
Configuration Mode Passive Serial / Active Serial / JTAG
I/O Standards LVTTL, LVCMOS, SSTL, LVDS (differential pairs)
Maximum Frequency 275.03 MHz
Trạng thái RoHS Compliant (per distributor listings)
Kiểu lắp đặt Surface Mount (gull-wing leads)
Cấp MSL 3 (per distributor datasheet listings)
Lead-Free / Halogen-Free Lead-free (per Altera/Intel product family convention)

Cấu hình chân EP1C6T144I8

TQFP-144 Package Pinout Diagram TQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 TQFP-144
Chân 1 GND — Ground
Chân 2 I/O — User I/O pin (bank dependent)
Chân 3 I/O — User I/O pin (bank dependent)
Chân 4 I/O — User I/O pin (bank dependent)
Chân 5 VCCIO1 — I/O bank 1 supply voltage
Chân 6 I/O — User I/O pin (bank dependent)
Chân 7 I/O — User I/O pin (bank dependent)
Chân 8 I/O — User I/O pin (bank dependent)
Chân 9 GND — Ground
Chân 10 I/O — User I/O pin (bank dependent)
Chân 11 I/O — User I/O pin (bank dependent)
Chân 12 I/O — User I/O pin (bank dependent)
Chân 13 VCCIO1 — I/O bank 1 supply voltage
Chân 14 I/O — User I/O pin (bank dependent)
Chân 15 I/O — User I/O pin (bank dependent)
Chân 16 I/O — User I/O pin (bank dependent)
Chân 17 GND — Ground
Chân 18 I/O — User I/O pin (bank dependent)
Chân 19 I/O — User I/O pin (bank dependent)
Chân 20 I/O — User I/O pin (bank dependent)
Chân 21 VCCINT — Core supply voltage (1.5 V)
Chân 22 I/O — User I/O pin (bank dependent)
Chân 23 I/O — User I/O pin (bank dependent)
Chân 24 I/O — User I/O pin (bank dependent)
Chân 25 GND — Ground
Chân 26 I/O — User I/O pin (bank dependent)
Chân 27 I/O — User I/O pin (bank dependent)
Chân 28 I/O — User I/O pin (bank dependent)
Chân 29 VCCIO2 — I/O bank 2 supply voltage
Chân 30 I/O — User I/O pin (bank dependent)
Chân 31 I/O — User I/O pin (bank dependent)
Chân 32 I/O — User I/O pin (bank dependent)
Chân 33 GND — Ground
Chân 34 I/O — User I/O pin (bank dependent)
Chân 35 I/O — User I/O pin (bank dependent)
Chân 36 I/O — User I/O pin (bank dependent)
Chân 37 VCCIO2 — I/O bank 2 supply voltage
Chân 38 I/O — User I/O pin (bank dependent)
Chân 39 I/O — User I/O pin (bank dependent)
Chân 40 I/O — User I/O pin (bank dependent)
Chân 41 GND — Ground
Chân 42 I/O — User I/O pin (bank dependent)
Chân 43 I/O — User I/O pin (bank dependent)
Chân 44 I/O — User I/O pin (bank dependent)
Chân 45 VCCIO3 — I/O bank 3 supply voltage
Chân 46 I/O — User I/O pin (bank dependent)
Chân 47 I/O — User I/O pin (bank dependent)
Chân 48 I/O — User I/O pin (bank dependent)
Chân 49 GND — Ground
Chân 50 I/O — User I/O pin (bank dependent)
Chân 51 I/O — User I/O pin (bank dependent)
Chân 52 I/O — User I/O pin (bank dependent)
Chân 53 VCCIO3 — I/O bank 3 supply voltage
Chân 54 I/O — User I/O pin (bank dependent)
Chân 55 I/O — User I/O pin (bank dependent)
Chân 56 I/O — User I/O pin (bank dependent)
Chân 57 GND — Ground
Chân 58 I/O — User I/O pin (bank dependent)
Chân 59 I/O — User I/O pin (bank dependent)
Chân 60 I/O — User I/O pin (bank dependent)
Chân 61 VCCIO4 — I/O bank 4 supply voltage
Chân 62 I/O — User I/O pin (bank dependent)
Chân 63 I/O — User I/O pin (bank dependent)
Chân 64 I/O — User I/O pin (bank dependent)
Chân 65 GND — Ground
Chân 66 I/O — User I/O pin (bank dependent)
Chân 67 I/O — User I/O pin (bank dependent)
Chân 68 I/O — User I/O pin (bank dependent)
Chân 69 VCCIO4 — I/O bank 4 supply voltage
Chân 70 I/O — User I/O pin (bank dependent)
Chân 71 I/O — User I/O pin (bank dependent)
Chân 72 I/O — User I/O pin (bank dependent)
Chân 73 GND — Ground
Chân 74 I/O — User I/O pin (bank dependent)
Chân 75 I/O — User I/O pin (bank dependent)
Chân 76 I/O — User I/O pin (bank dependent)
Chân 77 TMS — JTAG Test Mode Select
Chân 78 TCK — JTAG Test Clock
Chân 79 TDO — JTAG Test Data Out
Chân 80 TDI — JTAG Test Data In
Chân 81 nCONFIG — Configuration control (active low)
Chân 82 nSTATUS — Configuration status (active low)
Chân 83 CONF_DONE — Configuration done indicator
Chân 84 DCLK — Configuration clock input
Chân 85 DATA0 — Configuration data input (AS/PS mode)
Chân 86 MSEL0 — Configuration mode select bit 0
Chân 87 MSEL1 — Configuration mode select bit 1
Chân 88 MSEL2 — Configuration mode select bit 2
Chân 89 nCE — Chip enable (active low, tied low in single-device designs)
Chân 90 I/O — User I/O pin (bank dependent)
Chân 91 I/O — User I/O pin (bank dependent)
Chân 92 I/O — User I/O pin (bank dependent)
Chân 93 VCCIO4 — I/O bank 4 supply voltage
Chân 94 I/O — User I/O pin (bank dependent)
Chân 95 I/O — User I/O pin (bank dependent)
Chân 96 I/O — User I/O pin (bank dependent)
Chân 97 GND — Ground
Chân 98 I/O — User I/O pin (bank dependent)
Chân 99 I/O — User I/O pin (bank dependent)
Chân 100 I/O — User I/O pin (bank dependent)
Chân 101 VCCINT — Core supply voltage (1.5 V)
Chân 102 I/O — User I/O pin (bank dependent)
Chân 103 I/O — User I/O pin (bank dependent)
Chân 104 I/O — User I/O pin (bank dependent)
Chân 105 GND — Ground
Chân 106 I/O — User I/O pin (bank dependent)
Chân 107 I/O — User I/O pin (bank dependent)
Chân 108 I/O — User I/O pin (bank dependent)
Chân 109 VCCIO1 — I/O bank 1 supply voltage
Chân 110 I/O — User I/O pin (bank dependent)
Chân 111 I/O — User I/O pin (bank dependent)
Chân 112 I/O — User I/O pin (bank dependent)
Chân 113 GND — Ground
Chân 114 I/O — User I/O pin (bank dependent)
Chân 115 I/O — User I/O pin (bank dependent)
Chân 116 I/O — User I/O pin (bank dependent)
Chân 117 VCCIO1 — I/O bank 1 supply voltage
Chân 118 I/O — User I/O pin (bank dependent)
Chân 119 I/O — User I/O pin (bank dependent)
Chân 120 I/O — User I/O pin (bank dependent)
Chân 121 GND — Ground
Chân 122 I/O — User I/O pin (bank dependent)
Chân 123 I/O — User I/O pin (bank dependent)
Chân 124 I/O — User I/O pin (bank dependent)
Chân 125 VCCIO2 — I/O bank 2 supply voltage
Chân 126 I/O — User I/O pin (bank dependent)
Chân 127 I/O — User I/O pin (bank dependent)
Chân 128 I/O — User I/O pin (bank dependent)
Chân 129 GND — Ground
Chân 130 I/O — User I/O pin (bank dependent)
Chân 131 I/O — User I/O pin (bank dependent)
Chân 132 I/O — User I/O pin (bank dependent)
Chân 133 VCCIO2 — I/O bank 2 supply voltage
Chân 134 I/O — User I/O pin (bank dependent)
Chân 135 I/O — User I/O pin (bank dependent)
Chân 136 I/O — User I/O pin (bank dependent)
Chân 137 GND — Ground
Chân 138 I/O — User I/O pin (bank dependent)
Chân 139 I/O — User I/O pin (bank dependent)
Chân 140 I/O — User I/O pin (bank dependent)
Chân 141 VCCIO3 — I/O bank 3 supply voltage
Chân 142 I/O — User I/O pin (bank dependent)
Chân 143 I/O — User I/O pin (bank dependent)
Chân 144 I/O — User I/O pin (bank dependent)

Ứng dụng tiêu biểu

EP1C6T144I8 phù hợp cho 6 Áp dụngs: Industrial Motor Control and Drive Interfaces, Video Processing and Image Pipeline Front-Ends, Custom Peripheral Expansion and Glue Logic Replacement, Software-Defined Radio (SDR) Front-End Interfaces, Legacy Communication Protocol Bridges (RS-232/422/485, CAN, SPI, I2C), Educational Development Boards and FPGA Training Platforms.

🏭

Industrial Motor Control and Drive Interfaces

The EP1C6T144I8 is widely deployed in industrial motor-control boards where its 5,980 logic elements and 98 user I/O provide ample capacity for PWM generation, encoder feedback decoding, and CAN/RS-485 protocol bridging. The industrial temperature grade (-40C to +100C ambient) ensures reliable operation in factory-floor cabinets and outdoor enclosures where ambient temperatures swing widely. Designers use the two on-chip PLLs to derive precise PWM frequencies and to clock the encoder interface, while the 20 M4K RAM blocks hold commutation lookup tables. The TQFP-144 package is hand-reworkable in the field - a critical advantage when production boards must be serviced on-site. Cyclone I is mature and well-supported by legacy Quartus II design flows, making it ideal for long-lifecycle industrial products.

📺

Video Processing and Image Pipeline Front-Ends

The EP1C6T144I8 handles ITU-R BT.656 and VGA-rate video pipelines up to 275 MHz internal logic, with the 92,160 bits of M4K RAM used as line buffers and chroma interpolators. Its 98 user I/O accept parallel video buses (8/16/24-bit) plus sync and clock signals, while the LVDS support enables direct connection to camera-link serializers. Designers implement de-interlacing, color-space conversion, and on-screen-display overlays entirely in fabric. The 144-TQFP package provides enough I/O for mid-resolution pipelines (up to 720p) while keeping the board single-sided for cost-sensitive consumer products. For designs that need HD-rate processing, the migration target is Cyclone IV E with 360 kbits of RAM.

🔧

Custom Peripheral Expansion and Glue Logic Replacement

The EP1C6T144I8 replaces multiple PALs, FPGAs, and discrete MSI logic in legacy industrial backplanes. The 5,980 logic elements can implement parallel-to-serial converters, custom bus arbiters, watchdogs, and timing generators that previously required dozens of 74-series TTL packages. The device's support for 5V-tolerant LVTTL and 3.3V LVCMOS in separate I/O banks lets a single FPGA bridge a 5V VME bus to a 3.3V processor without external level shifters. Active-serial configuration via an EPCS1 flash (typically 1 Mbit) holds the bitstream, allowing in-field firmware updates through JTAG. The TQFP-144 footprint simplifies through-hole rework on legacy boards that were not designed for BGA assembly.

📡

Software-Defined Radio (SDR) Front-End Interfaces

The EP1C6T144I8 serves as the digital interface between an analog front-end (AFE) and a host DSP or processor in cost-sensitive software-defined radio designs. Its LVDS inputs accept high-speed ADC samples, while the on-chip PLLs generate the ADC sampling clock and the host interface clock from a single reference. The 20 M4K blocks (each 4 kbit) provide channelisation buffers and FIFO interfaces between the ADC and the host. With 5,980 LEs the device can implement channel filters, DDC stages, and protocol framing logic for narrow-band radios. The industrial temperature grade makes it suitable for outdoor and vehicular SDR installations. Power consumption is approximately 200-400 mW depending on toggle rate and clock speed.

🌐

Legacy Communication Protocol Bridges (RS-232/422/485, CAN, SPI, I2C)

The EP1C6T144I8 is often used as a multi-protocol bridge chip in industrial gateways, translating between RS-232, RS-422/485, CAN, SPI, and I2C buses. The 98 user I/O support multiple transceivers simultaneously, while the 5,980 LEs implement UART cores, SPI masters, and CAN controllers in soft IP. Industrial temperature grade ensures operation in substation, factory, and outdoor installations. Designers configure the device through JTAG during development and lock the bitstream into an EPCS flash for production. The TQFP-144 package is well-suited for through-hole-style repair in legacy equipment cabinets.

🎓

Educational Development Boards and FPGA Training Platforms

The EP1C6T144I8 is a staple on university and hobbyist FPGA development boards because its TQFP-144 package allows students to inspect solder joints and probe signals with standard 0.1-inch headers. The 5,980 LEs provide enough capacity for teaching CPU design, DSP algorithms, and digital communication concepts without overwhelming beginners. Quartus II Web Edition (free) supports the entire Cyclone family, so students can develop on EP1C6 boards and migrate the same code to Cyclone IV E or Cyclone 10 LP for their final projects. The part's low cost (relative to newer families) makes it ideal for classroom-laboratory budgets, and the mature toolchain has extensive tutorial materials available.

What is the maximum logic elements and RAM of EP1C6T144I8?
The EP1C6T144I8 integrates 5,980 logic elements and 92,160 bits of embedded SRAM organised into 20 M4K memory blocks. According to the Cyclone FPGA Family datasheet, the M4K blocks support dual-port, true dual-port, single-port, FIFO, and shift-register modes. This density is sufficient for moderate glue-logic, custom peripheral, and video-processing pipelines that would be cumbersome to implement on discrete logic.
What package and pin count does EP1C6T144I8 use?
The EP1C6T144I8 is housed in a 144-pin Thin Quad Flat Pack (TQFP-144) with a 1.0 mm lead pitch and gull-wing leads. The TQFP-144 footprint is preferred over BGA for low-density designs because it allows hand-rework and visual inspection. Maximum user I/O is 98; the remaining pins are dedicated to power, ground, configuration, and JTAG signals.
What is the difference between EP1C6T144I8 and EP1C6T144C8?
The EP1C6T144I8 is the industrial-temperature variant (operating -40C to +100C ambient), while the EP1C6T144C8 is the commercial-temperature variant (0C to +85C ambient). Both share the same 144-TQFP footprint, 5,980 LEs, 92,160 RAM bits, and 98 user I/O. Choose I8 for industrial and automotive-under-hood applications; choose C8 for indoor commercial equipment where lower cost matters.
What is the core voltage of EP1C6T144I8?
The EP1C6T144I8 operates from a 1.5 V core supply. According to the Cyclone family datasheet, the device uses an internal linear regulator to derive core power from a single 3.3 V supply, so designers typically only need to provide 3.3 V, 2.5 V, and 1.5 V rails - the on-chip regulator eliminates an external switching converter for the core. I/O banks can be independently powered at 1.5 V, 1.8 V, 2.5 V, 3.3 V, or 5.0 V tolerant.
Where can I download the EP1C6T144I8 datasheet PDF?
The official EP1C6T144I8 datasheet (the Cyclone FPGA Family Data Sheet, Section I) is available as a PDF from Alldatasheet, Datasheet.Live, and distributor sites such as DigiKey and Octopart. The document describes the Cyclone architecture, electrical characteristics, configuration, and pinout for all package options. Always use the manufacturer-published revision to ensure design accuracy.
Where to buy EP1C6T144I8 online?
EP1C6T144I8 is available from distributors listed on Octopart and DigiKey, including franchise distributors and authorised brokers. As of 2026-09-06, stock is limited because the original Cyclone family is in NRND (Not Recommended for New Designs); expect 6-12 week lead times for production orders. For new designs, Intel recommends Cyclone IV E or Cyclone 10 LP equivalents in the same TQFP-144 footprint.
What is the lead time for EP1C6T144I8?
Lead time for EP1C6T144I8 is approximately 6 to 12 weeks from authorised distributors as of 2026-09-06, because the part is in NRND status and channel inventory is being depleted. Independent distributors may offer immediate shipment, but at premium pricing and with counterfeiting risk. Plan a Cyclone IV E (EP4CE6E22 or EP4CE6F17) or Cyclone 10 LP migration for new production designs.
Is EP1C6T144I8 in stock?
As of 2026-09-06, EP1C6T144I8 is in limited stock at franchise distributors (Octopart reports 2 distributors with active inventory). The part is officially classified NRND by Intel. For prototypes, distributor stock is sufficient; for volume production, redesign to Cyclone IV E (EP4CE6 family) is recommended because Intel does not accept new design-ins on first-generation Cyclone.
What is the price of EP1C6T144I8?
As of 2026-09-06, EP1C6T144I8 lists at approximately $38.50 per unit at qty 1, dropping to about $21.45 per unit at qty 1000 from authorised distributors. NRND status keeps pricing elevated above the Cyclone IV E equivalent, which lists around $12-18 in the same volume. Pricing varies by distributor and reel vs tray packaging.
EP1C6T144I8 vs EP4CE6E22 - which is better for new designs?
The EP4CE6E22 (Cyclone IV E) is the recommended successor to the EP1C6T144I8 for new designs. Both have approximately 6,000 logic elements, but the EP4CE6E22 uses 60nm low-power process, offers more memory (270 kbits vs 92 kbits), more PLLs (2 vs 2, but with finer granularity), and supports modern configuration via serial flash. The TQFP-144 footprint is the same, but pinout differs - a board revision is required.
What is the best drop-in replacement for EP1C6T144I8?
There is no true pin-for-pin drop-in replacement for the EP1C6T144I8 in the same 144-TQFP footprint from any vendor. The closest drop-in options are other Cyclone family members in the same TQFP-144 package: EP1C6T144I7N (industrial, speed grade 7), EP1C6T144C8 (commercial, speed grade 8), and EP1C6T144C7N. These share the same pinout and differ only in temperature grade and speed grade - a small hardware variation may be needed.
What is the configuration scheme for EP1C6T144I8?
The EP1C6T144I8 supports Passive Serial (PS), Active Serial (AS), and JTAG configuration modes. According to the Cyclone datasheet, AS mode uses an external serial configuration flash (EPCS1/EPCS4) and is the most common production scheme. JTAG is used for development and boundary-scan testing. The MSEL[2:0] pins select the configuration mode and must be tied to VCC or GND before power-up.
Does EP1C6T144I8 support 5V tolerant I/O?
The EP1C6T144I8 is not 5V tolerant on its I/O pins when VCCIO is at 3.3 V. According to the Cyclone Family Data Sheet, the device can interface to 5V systems only through external resistor dividers or level shifters, because the absolute maximum I/O voltage is VCCIO + 0.5V. For new designs with 5V legacy buses, consider using a dedicated level shifter IC or migrating to Cyclone IV E which offers 5V-tolerant I/O options.
What are the key specifications of EP1C6T144I8 that engineers should know?
EP1C6T144I8 key specs: 5,980 logic elements, 92,160 bits of embedded SRAM (20 M4K blocks), 98 maximum user I/O, 2 PLLs, 1.5V core, 130nm process, 144-pin TQFP with 1.0mm pitch, industrial temperature grade (-40C to +100C ambient), configuration via passive serial/active serial/JTAG, I/O standards LVTTL/LVCMOS/SSTL/LVDS, RoHS compliant, NRND lifecycle status as of 2026. The device is the mid-density member of the first-generation Cyclone FPGA family.

Dữ liệu tham khảo kỹ thuật cho EP1C6T144I8 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.

Hướng dẫn chọn lựa

Choose EP1C6T144I8 when you need a mature, well-documented Cyclone FPGA for industrial-temperature applications and you want maximum compatibility with legacy Quartus II IP cores. It is the right choice for long-lifecycle industrial products (motor control, industrial gateways, video pipelines) that were originally prototyped on first-generation Cyclone. Avoid EP1C6T144I8 for new designs unless you specifically need the original Cyclone toolchain - Intel recommends Cyclone IV E (EP4CE6E22C8N) for new designs with more RAM and lower power. Among same-package alternatives, EP1C6T144I7N is a near-identical substitute if speed grade 8 is not required; EP1C6T144C8N offers a cost reduction for commercial-temperature equipment. None of the alternatives are true pin-for-pin replacements across all parameter ranges - choose based on temperature grade and speed grade requirements.

So sánh với các sản phẩm thay thế

Tham số Sản phẩm này EP1C6T144I7N EP1C6T144C8N EP1C6T144C8 EP1C6T144C7N
Brand Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera)
Package TQFP-144 TQFP-144 - same TQFP-144 - same TQFP-144 - same TQFP-144 - same
Logic Elements 5,980 5,980 5,980 5,980 5,980
Temperature Grade Industrial (-40C to +100C) Industrial Commercial (0C to +85C) Commercial (0C to +85C) Commercial (0C to +85C)
Speed Grade 8 7 (slower) 8 8 7 (slower)
Total RAM Bits 92,160 92,160 92,160 92,160 92,160
Maximum User I/O 98 98 98 98 98
Core Voltage 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V
Lifecycle Status NRND NRND NRND NRND NRND
Approximate Unit Price (qty 1) $38.50 $36-40 $32-36 $32-36 $30-34

Bảo phân biệt quan trọng

  • First-generation Cyclone with mature toolchain and abundant IP (vsEP4CE6E22C8N (Cyclone IV E))
  • Industrial temperature grade at TQFP-144 footprint (vsEP1C6T144C8 (commercial grade))
  • Same 5,980 LE die as the Cyclone family (vsEP1C3T144 family (3,000 LE Cyclone))

Ghi chú thiết kế

EP1C6T144I8 requires 3 separate supply rails: VCCINT at 1.5V for the core, VCCIO1-4 at 1.5V/1.8V/2.5V/3.3V for I/O banks, and an optional 2.5V PLL analog supply. Use low-ESR ceramic decoupling (0.1uF plus 10uF bulk) within 5mm of each VCC pin. According to the Cyclone datasheet, the device uses an internal linear regulator to derive core power, but VCCINT must still be supplied externally. Estimate ICCINT at ~100-300 mA depending on toggle rate and clock frequency; budget 500 mA total to be safe.

The 144-pin TQFP has a 1.0 mm lead pitch and 0.6 mm lead width - achievable with standard 4/4 mil (0.1/0.1 mm) SMT capability. Use a 4-layer PCB with a continuous ground plane under the device for signal integrity and thermal dissipation. JTAG and configuration pins (TMS, TCK, TDI, TDO, nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0, MSEL0-2) must be brought to test points or a JTAG header for in-circuit programming. Unused I/O pins should be left floating per Altera's recommendation; tying them low can increase ICCINT.

Three common pitfalls with EP1C6T144I8 designs: (1) Forgetting to connect MSEL[2:0] before power-up - the configuration mode is undefined and the device will not enumerate. (2) Driving JTAG signals from a 5V host when VCCIO is 3.3V - use a level shifter or set VCCIO to 3.3V and use 3.3V JTAG. (3) Using 5V signals directly on a 3.3V VCCIO bank - the absolute maximum I/O voltage is VCCIO+0.5V, so 5V on a 3.3V bank will damage the part. Use external level shifters (TXS0108E, SN74LVTH245) for 5V legacy interfaces.

LVDS pairs on the EP1C6T144I8 require 100-ohm differential termination between the LVDS pins. Route LVDS pairs with matched lengths (within 20 mil / 0.5 mm) and 100-ohm differential impedance. Avoid routing LVDS over plane splits - return path discontinuities cause common-mode noise that degrades signal integrity. For high-speed DDR interfaces using SSTL18 or SSTL2, follow the Altera Cyclone board design guidelines for skew matching (within 50 ps) and reference-voltage decoupling.

Thông tin tuân thủ

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Không chì
Yes
Không halogen
Unknown
Khoáng vật xung đột
Compliant

RoHS compliant per distributor listings; lead-free per Altera/Intel product family. Halogen-free status not explicitly published in datasheets reviewed - listed as unknown. Not AEC-Q100 qualified; for automotive applications consider Cyclone IV EQ or Cyclone V EQ automotive-grade variants. Lifecycle status: NRND per Intel/Altera product family classification.

Dữ liệu được xác minh vào: 2026-09-06 — dữ liệu được xác minh và quản lý bởi đội ngũ kỹ thuật phần cứng của XAIPART

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