EP1C12Q240C8 - Cyclone FPGA 12,060 LEs 173 I/O 240-PQFP | Intel
MPN： EP1C12Q240C8 ⚠ 最後購買機會EP1C12Q240C8 概覽
An FPGA is a programmable logic device whose logic fabric, routing, and I/O cells are configured by a bitstream loaded into on-chip SRAM at power-up. FPGAs sit between fixed-function Application-Specific Integrated Circuits (ASICs) and software-programmable microcontrollers in the digital semiconductor hierarchy: logic device → programmable logic → FPGA → SRAM-based FPGA → CPLD. The Cyclone family was Altera's low-cost SRAM-based FPGA line, positioned below the Stratix high-performance tier and above the legacy MAX CPLD family, offering embedded multipliers and PLL-based clock management for cost-sensitive volume designs.
Key features of the EP1C12Q240C8 include two Phase-Locked Loops (PLLs) for clock multiplication and deskew, embedded 18×18 multipliers (typical of the Cyclone architecture), LVTTL/LVCMOS/LVDS I/O support across multiple banks, and configuration via active serial (AS), passive serial (PS), or JTAG modes. The 240-PQFP package provides 173 usable I/O at 1.5 V core / 3.3 V I/O tolerant operation, with JTAG boundary-scan per IEEE 1149.1 supporting in-system programming and post-assembly board test.
Architecturally, the device uses four-corner Logic Array Blocks (LABs) of 10 Logic Elements (LEs) each, with dedicated carry chains for fast arithmetic and a distributed M4K memory block array (24 blocks typical of Cyclone) totaling ~234 kbit. The 130 nm process offers low static leakage and predictable timing closure compared with older 180 nm Cyclone predecessors.
Typical applications include industrial motor-control state machines, parallel peripheral expansion for legacy microcontrollers, factory-automation glue logic, glue logic between ASSP bridges and memory buses, telecom line-card interface controllers, and educational/hobby FPGA development platforms. The PQFP-240 package is also friendly to hand-soldering and rework for low-volume prototype builds.
A primary design consideration is the 1.5 V core supply decoupling: place 0.1 µF ceramic capacitors adjacent to every VCCINT/VCCIO pin pair, with at least one bulk 100 µF tantalum or polymer capacitor on the PCB. Although the 240-PQFP package simplifies prototyping, designers targeting high-volume production typically migrate to the TQFP-144 or BGA-packaged Cyclone variants (e.g., EP1C12F256 / EP1C12F324) to reduce board area.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, making it easier for engineers to evaluate the EP1C12Q240C8 for new designs and to find pin-compatible replacements for EOL or long-lead-time situations.
直接替換替代品，適用於 EP1C12Q240C8 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： EP1C12Q240C8 （相同外形與佔位） — 差異在於 Process Technology, Speed Grade, Package, Total RAM Bits, Series.
EP1C12Q240C7N
✅ 直接替換聯絡詢價
查看資料表 →EP1C12Q240C7
✅ 直接替換聯絡詢價
查看資料表 →EP1C12Q240C6N
✅ 直接替換聯絡詢價
查看資料表 →EP1C12Q240C6
✅ 直接替換聯絡詢價
查看資料表 →EP1C12Q240C6NAA
✅ 直接替換聯絡詢價
查看資料表 →EP1C12Q240
✅ 直接替換聯絡詢價
查看資料表 →EP1C12Q240C8 最大額定值與電氣特性
| Series | Cyclone® |
| Family | Cyclone I (EP1C12) |
| Logic Elements (LEs) | 12,060 |
| Embedded Memory (bits) | 239,616 (234 kbit) |
| User I/O Pins | 173 |
| PLLs | 2 |
| Embedded Multipliers | Yes (per Cyclone architecture) |
| Speed Grade | C8 |
| Core Voltage | 1.5 V |
| I/O Voltage | 3.3 V (LVTTL/LVCMOS/LVDS tolerant) |
| Process Technology | 130 nm CMOS SRAM |
| 封裝 | 240-BFQFP / PQFP-240, gull-wing |
| 安裝類型 | Surface Mount |
| Configuration Modes | AS, PS, JTAG |
| JTAG Support | IEEE 1149.1 boundary-scan |
| RoHS 狀態 | Non-Compliant (legacy PQFP) |
EP1C12Q240C8 240-bfqfp / pqfp-240, gull-wing 腳位配置指南
EP1C12Q240C8（240-bfqfp / pqfp-240, gull-wing 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： EP1C12Q240C8.
請參閱 資料表 以查看完整腳位配置。
典型應用
EP1C12Q240C8 適用於 6 應用s: Industrial Motor Control State Machine, Legacy Microcontroller Bus Expansion / Glue Logic, Telecom Line-Card Interface Controller, Factory Automation Protocol Bridge, Educational / Hobby FPGA Development Board, Automotive Aftermarket / Hobby CAN-bus Gateway.
Industrial Motor Control State Machine
The EP1C12Q240C8 fits industrial motor-control state machines because its 12,060 LEs and two PLLs provide enough fabric for PID loops, PWM generators, and encoder decoding, while the 240-PQFP package survives the vibration profile of factory-floor equipment better than fine-pitch BGA. With 173 user I/O it directly interfaces to Hall sensors, quadrature encoders, and 3-phase gate-driver PWM outputs. Its 1.5 V core / 3.3 V I/O banks accept 3.3 V Hall/encoder signals directly without external level shifters, simplifying the BOM. Designers should note the C8 timing margin (~275 MHz internal) is sufficient for 50 µs PWM update periods typical of low-to-mid speed V/Hz drives.
推薦
Legacy Microcontroller Bus Expansion / Glue Logic
The EP1C12Q240C8 is widely deployed as glue logic between legacy 8/16-bit microcontrollers and parallel peripherals (ASICs, FPGAs, memories). Its 173 user I/O split across four banks lets engineers map a 16-bit data bus, 24-bit address bus, plus 12 chip-select and interrupt lines without external bus expander ICs. The 240-PQFP footprint is hand-solderable, which matters for low-volume retrofit boards where fine-pitch BGA rework is impractical. With JTAG-supported in-system programming per IEEE 1149.1, firmware revisions can be applied through the same header used for production test.
推薦
Telecom Line-Card Interface Controller
Telecom line-card designs historically used the EP1C12Q240C8 as a T1/E1 framer interface controller, taking advantage of its two PLLs for clock recovery and its 173 I/O for parallel backplane buses. The 130 nm Cyclone fabric offers deterministic timing suitable for HDLC encoding and elastic store buffering. The PQFP-240 thermal envelope handles the typical 1.5-2 W dissipation of an idle-moderate workload line-card FPGA without heatsinking. For new designs, migrate to Cyclone IV GX in F256/F324 BGA for built-in transceivers, but sustain legacy platforms with the EP1C12Q240C8 from authorized stock.
推薦
Factory Automation Protocol Bridge
Factory-automation systems use the EP1C12Q240C8 as a protocol bridge between Profibus, Modbus, and Ethernet/IP segments. The 12,060 LEs are sufficient to host multiple soft-core processors (e.g., Nios II) for protocol stack handling, and the 239 kbit embedded RAM accommodates the buffer pools for serial packet reassembly. The four I/O banks simplify mixed-voltage interfacing — 5 V tolerant inputs via external resistor dividers feed one bank while 3.3 V LVCMOS outputs drive the Ethernet PHY. PQFP-240 mechanical robustness matches the IPC-2221 industrial PCB guideline for vibration and thermal-cycling environments.
推薦
Educational / Hobby FPGA Development Board
The EP1C12Q240C8 is a popular FPGA on university and hobbyist development boards because its PQFP-240 package can be hand-soldered by students — a near-impossible task with F-BGA. At ~12,060 LEs it can host an entire Nios II soft processor plus peripherals, making it an ideal teaching platform for digital-design and computer-architecture courses. The 173 I/O are exposed through 0.1″ headers on typical dev boards, simplifying logic-analyzer probing. Quartus II Web Edition supports the part free of charge, removing licensing friction for students and makers. The C8 timing grade is more than adequate for classroom clock frequencies of 50-100 MHz.
推薦
Automotive Aftermarket / Hobby CAN-bus Gateway
The EP1C12Q240C8 serves as a CAN-bus gateway in automotive aftermarket products where the OEM ECU protocols need translation to OBD-II or custom telemetry. The 12,060 LEs comfortably host two CAN controllers plus a Nios II/e processor for message routing. The PQFP-240 mechanical format tolerates the -40 °C to +100 °C automotive under-hood temperature range when derated appropriately, and its 173 I/O easily accommodate dual CAN transceivers, LIN, and SPI peripherals. Note: this part is NOT AEC-Q100 qualified, so it is suitable for aftermarket/commercial-vehicle deployments but not for OEM safety-critical ECUs.
推薦
推薦產品摘要
工程參考資料，適用於 EP1C12Q240C8 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | EP1C12Q240C7N | EP1C12Q240C7 | EP1C12Q240C6N | EP1C12Q240C6 | EP1C12Q240C6NAA | EP1C12Q240 |
|---|---|---|---|---|---|---|---|
| Package | 240-PQFP (240-BFQFP) | 240-PQFP - same | 240-PQFP - same | 240-PQFP - same | 240-PQFP - same | 240-PQFP - same | 240-PQFP - same |
| Brand | Intel (formerly Altera) | Intel | Intel | Intel | Intel | Intel | Intel |
| Logic Elements | 12,060 | 12,060 | 12,060 | 12,060 | 12,060 | 12,060 | 12,060 |
| Speed Grade | C8 | C7 (faster) | C7 (faster) | C6 (slower) | C6 (slower) | C6 (slower) | C-family (unsuffixed) |
| User I/O | 173 | 173 | 173 | 173 | 173 | 173 | 173 |
| Embedded RAM | 239,616 bits (234 kbit) | 239,616 bits | 239,616 bits | 239,616 bits | 239,616 bits | 239,616 bits | 239,616 bits |
| Core Voltage | 1.5 V | 1.5 V | 1.5 V | 1.5 V | 1.5 V | 1.5 V | 1.5 V |
| Lead-Free Finish | No (legacy SnPb) | Yes (N suffix) | No | Yes (N suffix) | No | Yes (N suffix + AA) | No |
| Approx. 1k-piece Price (USD, 2026-09-06) | 23.10 | 24.50 | 23.80 | 21.20 | 20.50 | 21.40 | 22.10 |
| Process Technology | 130 nm CMOS SRAM | 130 nm CMOS SRAM | 130 nm CMOS SRAM | 130 nm CMOS SRAM | 130 nm CMOS SRAM | 130 nm CMOS SRAM | 130 nm CMOS SRAM |
主要差異化特點
- Same-die speed-grade flexibility across C6/C7/C8 in identical 240-PQFP (對比EP1C12Q240C7N)
- Lead-free finish variant without PCB or bitstream changes (對比EP1C12Q240C8N)
- PQFP-240 hand-solderable footprint vs F-BGA requiring reflow (對比EP1C12F324C8)
設計說明
The EP1C12Q240C8 requires a 1.5 V core rail and 3.3 V I/O rails, each of which must be decoupled per the Cyclone device handbook. Place a 0.1 µF X7R ceramic capacitor adjacent to every VCCINT/VCCIO pin pair, plus a single 100 µF low-ESR tantalum or polymer bulk capacitor on each rail. Power-on reset must follow the Altera-recommended sequencing (VCCINT ramp first, then VCCIO within 100 ms) to avoid I/O latch-up during cold start. Estimated: at 50% logic utilization and 100 MHz, total power dissipation is approximately 0.8-1.2 W.
Although the 240-PQFP package has a larger thermal footprint than F-BGA, the EP1C12Q240C8 still requires thermal management at high toggle rates. Reference the Cyclone family datasheet thermal-resistance table: theta_JA of the PQFP-240 with JEDEC EIA/JESD51 4-layer test board is approximately 28 °C/W. Estimated: at 1.5 W dissipation, junction temperature rise above ambient is ~42 °C — acceptable up to a 70 °C ambient. Above 70 °C ambient, add a small clip-on heatsink or increase PCB copper area under the exposed die-pad region.
Route all 1.5 V VCCINT and 3.3 V VCCIO power pins with at least 20-mil traces, and provide a continuous power plane under the device. Keep JTAG signals (TCK, TMS, TDI, TDO) short and parallel; add 10 kΩ pull-ups on TCK/TMS/TDI per the IEEE 1149.1 recommendation. The configuration mode pins (MSEL0, MSEL1) must be tied high or low with 1 kΩ resistors — never left floating — to guarantee deterministic boot mode selection. Finally, reserve a 4-pin header for the Altera USB-Blaster download cable footprint.
Three common pitfalls when designing with the EP1C12Q240C8: (1) Do NOT drive I/O pins before VCCIO has ramped — this causes I/O latch-up. (2) Do NOT omit the CONFIG_DONE pull-up; without it, configuration fails silently on power-up. (3) Do NOT assume the PQFP-240 package is RoHS-compliant — the EP1C12Q240C8 itself is non-RoHS (SnPb finish); select the EP1C12Q240C8N or EP1C12Q240C7N variants for RoHS-conformant EU shipments.
合規資訊
EP1C12Q240C8 ships with SnPb (non-lead-free) finish per Cyclone I family datasheet; it is not RoHS-compliant. Select the EP1C12Q240C8N or EP1C12Q240C7N variant for lead-free / RoHS-compliant EU deployments. Not AEC-Q100 qualified; suitable for industrial, commercial, and hobbyist use, but not automotive OEM safety-critical ECUs.
