EP1C20F324C6N - Cyclone FPGA 20K LE 324-BGA | Intel / Altera
MPN： EP1C20F324C6N ✗ 停產EP1C20F324C6N 概覽
A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnects, and I/O cells that the designer can re-program after manufacture to implement arbitrary digital logic, glue logic, state machines, and parallel datapaths. In the system hierarchy, FPGAs sit alongside microcontrollers and ASICs in the broader class of programmable logic devices (PLDs), and are differentiated by their parallel architecture, ability to handle wide datapaths, and on-chip memory. The Cyclone family was Altera's (now Intel's) entry-level, high-volume FPGA line, fabricated on a 0.13 µm SRAM process, with on-chip multipliers, PLL-based clock management, and support for external memory interfaces including DDR SDRAM and FCRAM.
Key features of the EP1C20F324C6N include 20,060 LEs arranged in 2,006 logic array blocks (LABs), 294,912 bits (approximately 36 Kbit) of M4K embedded memory blocks, up to 233 user I/Os, embedded 18 × 18 multipliers for DSP operations, and up to two PLLs for clock generation and management. The device supports multiple I/O standards including LVTTL, LVCMOS, PCI, SSTL, and LVDS, and is configured via JTAG or Altera's serial configuration devices. The 1.5 V core supply and 1.5 V / 2.5 V / 3.3 V I/O supplies are powered from separate rails, with power consumption strongly dependent on toggle rate and utilization.
From an architectural standpoint, the Cyclone LE contains a 4-input look-up table (LUT), a programmable register, a carry chain for arithmetic, and a cascade chain for wide fan-in logic. The M4K memory blocks can be configured as true dual-port, simple dual-port, or single-port RAM, ROM, or FIFO buffers with parity support. The PLL blocks support clock multiplication, division, phase shifting, and external clock feedback for precise system-level timing alignment.
Typical applications for the EP1C20F324C6N include display controllers and LCD panel drivers, industrial I/O expansion and protocol bridging, low-cost video processing pipelines, glue logic in telecom and networking line cards, motor control and industrial automation, and consumer electronics such as set-top boxes, printers, and digital photo frames. The combination of moderate logic density, embedded multipliers, and on-chip RAM makes it well-suited to mid-complexity control-plane and datapath tasks.
When designing with this part, allocate at least four dedicated power layers or planes (1.5 V core, PLL analog supply, I/O banks, and GND) and follow the Altera Cyclone Hardware Design Guidelines for decoupling, including 100 nF + 10 µF per power pin and a bulk capacitor per supply rail. The 1.0 mm-pitch FBGA-324 requires a 4-6-4 trace escape on a high-layer-count PCB and ENIG or OSP surface finish for reliable BGA assembly.
This page synthesizes distributor pricing, drop-in alternatives from the same Cyclone family, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 EP1C20F324C6N — 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： EP1C20F324C6N （相同外形與佔位） — 差異在於 Package, Speed Grade, Process Technology, Operating Temperature, Total RAM Bits.
EP1C20F324C8N
✅ 直接替換聯絡詢價
查看資料表 →EP1C20F324I7N
✅ 直接替換聯絡詢價
查看資料表 →EP1C20F324C7N
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EP1C20F324C6
✅ 直接替換聯絡詢價
查看資料表 →EP1C20F324I7
✅ 直接替換聯絡詢價
查看資料表 →EP1C20F324C6N 最大額定值與電氣特性
| Series | Cyclone® |
| Family | Cyclone I |
| Logic Elements (LEs) | 20,060 |
| Logic Array Blocks (LABs) | 2,006 |
| Total RAM Bits | 294,912 (36 Kbit) |
| Embedded Multipliers (18×18) | Yes (M4K + DSP blocks per datasheet) |
| User I/Os | 233 |
| Number of CLBs / Logic Cells | 20,060 cells (20060 CLBs per datasheet) |
| Supply Voltage - Core | 1.5 V |
| Maximum Operating Frequency | 405 MHz (per FindIC specification) |
| Process Technology | CMOS, 0.13 µm SRAM-based |
| 封裝 | 324-FBGA (FineLine BGA), 19 × 19 mm, 1.0 mm pitch |
| 安裝類型 | Surface Mount (BGA) |
| Speed Grade | C6 |
| 工作溫度 | 0 °C to +85 °C (commercial, "C" prefix) |
| Lead-Free / RoHS | Yes (lead-free, "N" suffix per part number decoder) |
| PLLs | 2 (per Cyclone family datasheet) |
| Configuration | JTAG, Passive Serial, Active Serial (EPCS) |
EP1C20F324C6N 324-fbga (fineline bga), 19 × 19 mm, 1.0 mm pitch 腳位配置指南
EP1C20F324C6N（324-fbga (fineline bga), 19 × 19 mm, 1.0 mm pitch 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： EP1C20F324C6N.
請參閱 資料表 以查看完整腳位配置。
典型應用
EP1C20F324C6N 適用於 6 應用s: Industrial Protocol Bridge / Glue Logic, Display Controller / LCD Panel Driver, Motor Control and Industrial Automation, Low-Cost Video Processing Pipeline, Telecom Line Card Glue Logic, Consumer Set-Top Box and Printer Controller.
Industrial Protocol Bridge / Glue Logic
The EP1C20F324C6N is well-suited to industrial protocol bridging and glue-logic roles where moderate logic density and a large user-IO count are required. Its 20,060 logic elements (LEs) and 233 user I/Os in the 324-FBGA package give designers headroom for UART/SPI/I2C bridging, PROFINET or Modbus protocol conversion, and parallel-to-serial multiplexing across multiple industrial buses. The 1.5 V core and bank-isolated I/Os (LVTTL/LVCMOS/PCI/SSTL) simplify interfacing to 3.3 V MCUs and 5 V-tolerant peripherals via series resistors, while the two on-chip PLLs allow clean clock recovery from any reference. Compared with a CPLD, the Cyclone provides 18×18 multipliers and 294 Kbit of block RAM for buffering packet data, but the designer must still manage commercial temperature grade (0–85 °C) or migrate to the I7 variant for cabinet environments.
推薦
Display Controller / LCD Panel Driver
The EP1C20F324C6N's 20,060 LEs and 233 user I/Os make it a strong fit for mid-resolution LCD and TFT display controllers, where parallel RGB data buses and timing-control signals consume significant pin and logic resources. The 324-FBGA package provides ample I/O for 18/24-bit color interfaces plus control signals, while the 294 Kbit M4K memory can be configured as line buffers or frame-row FIFOs to smooth data flow between the host processor and panel. The two on-chip PLLs synthesize the pixel clock from a low-frequency reference with sub-nanosecond jitter, which is critical for avoiding visual artifacts in LCDs and OLEDs. Designers typically pair the EP1C20F324C6N with an SDRAM or DDR memory controller block (Cyclone I supports external SDRAM but not DDR) and implement color-space conversion in hardware. For higher-resolution panels above XGA, designers should migrate to Cyclone II or later, which adds dedicated DDR memory support.
推薦
Motor Control and Industrial Automation
In motor-control and industrial-automation applications, the EP1C20F324C6N delivers precise multi-axis PWM generation, encoder feedback decoding, and field-oriented control (FOC) state machines with deterministic latency. The 20,060 LEs comfortably host a single-axis FOC algorithm plus auxiliary protection logic, while the 18×18 embedded multipliers accelerate Park/Clarke transforms and PID loops. The 233 user I/Os of the 324-FBGA package expose enough pins for three-phase PWM outputs, Hall-sensor or QEI encoder inputs, current-sense ADCs, and CAN/SPI communication to a supervisory MCU. The two PLLs synthesize high-resolution PWM carrier frequencies from a single crystal reference. For -40 °C to +100 °C cabinet environments, choose the EP1C20F324I7N industrial-temperature variant; the C6N commercial-grade part is limited to 0–85 °C operation.
推薦
Low-Cost Video Processing Pipeline
The EP1C20F324C6N can implement entry-level video processing functions such as scaling, de-interlacing, color-space conversion, and on-screen display (OSD) overlay for SDTV and standard-definition video. The 20,060 LEs and 18×18 embedded multipliers handle real-time horizontal/vertical scaling filters and chroma keying, while 294 Kbit of M4K memory serves as line buffers for 4:2:2 chroma data. The 233 user I/Os of the 324-FBGA expose parallel ITU-R BT.656 or D1 video buses plus audio I2S, and the two PLLs synthesize 27 MHz video reference clocks cleanly. Compared with a DSP, the Cyclone provides deterministic parallel processing without software overhead, but the user must implement external SDRAM controllers for frame buffering since the part lacks internal memory large enough for full frames. For HD or full-HD processing migrate to Cyclone IV or Cyclone V.
推薦
Telecom Line Card Glue Logic
In telecom line cards and access equipment, the EP1C20F324C6N serves as flexible glue logic between network processors, framers, SERDES, and backplane interfaces. Its 20,060 LEs accommodate TDM bus cross-connects, LIU (line-interface-unit) configuration state machines, and per-channel alarm monitoring, while the 324-FBGA's 233 user I/Os expose enough parallel buses for multi-port T1/E1 or low-density Ethernet aggregation. The 18×18 multipliers support V.90 modem equalization or simple DSP functions for line testing. The two PLLs clean up recovered clocks from the network side. Designers typically pair the EP1C20F324C6N with a higher-level processor running protocol stacks, offloading only the deterministic glue and alarm logic to the FPGA. Note that the Cyclone I is commercial-grade; for outdoor cabinets, the I7N industrial variant is required.
推薦
Consumer Set-Top Box and Printer Controller
The EP1C20F324C6N fits cost-sensitive consumer products such as entry-level set-top boxes, digital photo frames, and mid-range printers that require custom control logic without the expense of an ASIC. The 20,060 LEs handle MPEG transport-stream demultiplexing, IR remote decoding, and front-panel key-scanning in a set-top box, or print-engine sequencing, USB-host glue, and LCD status rendering in a printer. The 233 user I/Os of the 324-FBGA accommodate multiple peripheral buses (USB, I2S, I2C, SPI, parallel NAND), while the two PLLs synthesize audio and video clocks from a single 27 MHz reference. The commercial temperature grade is sufficient for indoor consumer environments. Designers moving to high-volume production may migrate to Cyclone II for lower unit cost, but the EP1C20F324C6N remains a useful prototyping or low-volume-production device.
推薦
推薦產品摘要
工程參考資料，適用於 EP1C20F324C6N — 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 | EP1C20F324C8N | EP1C20F324I7N | EP1C20F324C7N | EP1C20F324C6 | EP1C20F324I7 |
|---|---|---|---|---|---|---|
| Brand | Altera (now Intel) | Altera (now Intel) | Altera (now Intel) | Altera (now Intel) | Altera (now Intel) | Altera (now Intel) |
| Package | 324-FBGA (19x19 mm, 1.0 mm pitch) | 324-FBGA (19x19 mm, 1.0 mm pitch) - same | 324-FBGA (19x19 mm, 1.0 mm pitch) - same | 324-FBGA (19x19 mm, 1.0 mm pitch) - same | 324-FBGA (19x19 mm, 1.0 mm pitch) - same | 324-FBGA (19x19 mm, 1.0 mm pitch) - same |
| Logic Elements | 20,060 | 20,060 | 20,060 | 20,060 | 20,060 | 20,060 |
| Speed Grade | C6 | C8 (slower) | I7 (faster, industrial) | C7 (between C6 and C8) | C6 (identical speed) | I7 (faster, industrial) |
| Operating Temperature | 0 to +85 °C (commercial) | 0 to +85 °C | -40 to +100 °C (industrial) | 0 to +85 °C | 0 to +85 °C | -40 to +100 °C (industrial) |
| Lead-Free / RoHS | Yes (N suffix, lead-free) | Yes (lead-free) | Yes (lead-free) | Yes (lead-free) | No (without N suffix) | No (without N suffix) |
| User I/Os | 233 | 233 | 233 | 233 | 233 | 233 |
| Embedded RAM | 294,912 bits (M4K blocks) | 294,912 bits | 294,912 bits | 294,912 bits | 294,912 bits | 294,912 bits |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
主要差異化特點
- Industrial temperature grade variant available in the same FBGA-324 footprint (對比EP1C20F324I7N)
- Lead-free RoHS-compliant finish (N suffix) (對比EP1C20F324C6 (without N suffix))
- Faster C6 speed grade available for timing-critical paths (對比EP1C20F324C8N)
設計說明
The EP1C20F324C6N requires four separate power rails: VCCINT (1.5 V core), VCCIO[1..4] (per-bank I/O voltages, supporting 1.5/1.8/2.5/3.3 V), VCC_PLL (analog 1.5 V for the two PLL blocks), and a common GND. Place 100 nF X7R ceramic decoupling capacitors on every VCC pin within 3 mm trace length, plus 10 µF X5R bulk capacitors per supply rail. Estimated: at typical 30% toggle rate and 50% utilization on the C6N, core current draw can reach 500–800 mA; the PLL analog supply must be filtered with an LC or ferrite-bead network to minimize jitter. Follow Altera's Cyclone Hardware Design Guidelines (AN-224) for sequencing requirements.
The 324-FBGA has 1.0 mm ball pitch, which demands a 4-6-4 via-in-pad or dog-bone fan-out escape pattern on a 6+ layer PCB. Microvia technology (laser-drilled stacked vias) is strongly recommended for the inner-row ball escape. Use ENIG surface finish for reliable BGA assembly; OSP is acceptable for prototypes but less robust for production. Estimated: full-channel escape requires approximately 4 signal layers between the BGA and the inner layers; allocate at least 2 ground planes adjacent to signal layers for controlled impedance of 50 Ω single-ended traces.
Do not assume the EP1C20F324C6N is hot-swappable; it requires proper VCCINT/VCCIO power-on sequencing per the Cyclone datasheet, otherwise the I/Os may drive into a contention state during ramp. Always deassert nCONFIG (drive high) only after all supplies reach valid levels; CONF_DONE will signal successful configuration. Configuration bitstream storage on an EPCS1/EPCS4/EPCS16 active-serial flash must match the C6 speed grade or design will fail timing closure. Common pitfall: using C8 bitstreams on a C6 device will work but C6 bitstreams on a C8 device will fail timing analysis.
合規資訊
Lead-free / RoHS compliant per part-number "N" suffix. REACH and halogen-free status not stated in the verified web data and set to "unknown". AEC-Q100 not applicable (FPGA used in industrial/consumer applications, not automotive qualified under AEC-Q100).
