EP1C4F324C8N - Cyclone FPGA 4000 LE 249 I/O | Altera
MPN： EP1C4F324C8N ✗ 停產EP1C4F324C8N 概覽
An FPGA, or field-programmable gate array, is an integrated circuit whose digital logic fabric can be reconfigured after manufacturing. Unlike fixed-function ASICs, FPGAs use SRAM-based programmable lookup tables, routing switches, and flip-flops, allowing designers to implement arbitrary hardware logic quickly and update it in the field. The EP1C4 is an entry-density member of the Cyclone product tier, filling the gap between small CPLDs and mid-range FPGAs in systems that need hundreds of parallel I/Os without a large power budget.
Key features include 400 logic array blocks, each containing ten logic elements, for a total of 4,000 logic elements; 78,336 RAM bits for FIFOs, line buffers, or register files; and 249 user I/O pins. The 324-ball FBGA uses 1.0 mm pitch, which is practical for low-cost PCB fabrication. The N suffix indicates a lead-free finish, and the C8 speed-grade option provides a cost-effective timing target for many proven designs.
Technically, the EP1C4F324C8N is an SRAM-based FPGA, so it must be configured from an external EPCS/PROM, a configuration device, or through JTAG after power-up. The wide 324-ball array provides excellent routing escape and is suited to surface-mount assembly with standard reflow. Because the Cyclone family is mature, extensive documentation, reference designs, and application notes are available, and the same bitstream can be compiled with Altera/Intel Quartus software.
Typical applications include industrial-control glue logic, communication protocol bridging, motor-control PWM, video and LED-display timing, test-and-measurement interfaces, and legacy board repair. The combination of 4,000 logic elements and 249 user I/Os is well matched to systems that need more capability than a CPLD but do not justify a larger FPGA.
Designers should pay close attention to the 1.5 V core supply, decoupling it with low-ESR ceramic capacitors close to the device, and should verify that the selected EPCS configuration device is compatible with the FPGA configuration voltage. For operation outside the commercial 0°C to +85°C range, choose an I-suffix industrial variant instead.
This page synthesizes verified distributor links, comparable price information, drop-in alternative variants, and practical design guidance not found in a single manufacturer datasheet, helping engineers evaluate the EP1C4F324C8N quickly for repair or new legacy-compatible builds.
直接替換替代品，適用於 EP1C4F324C8N — 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： EP1C4F324C8N （相同外形與佔位） — 差異在於 RoHS Status, Package, Process Technology, Speed Grade, Operating Temperature.
EP1C4F324C7N
✅ 直接替換聯絡詢價
查看資料表 →EP1C4F324C6N
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EP1C4F324I8N
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
EP1C4F324I7N
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EP1C4F324I6N
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
EP1C4F324C8N 最大額定值與電氣特性
| Device Family | Cyclone |
| Programmable Logic Type | FPGA |
| Number of Logic Elements/Cells | 4000 |
| Number of LABs/CLBs | 400 |
| Total RAM Bits | 78336 |
| Number of User I/Os | 249 |
| Core Supply Voltage | 1.5 V |
| Maximum Internal Frequency (datasheet listing) | 405 MHz |
| 封裝 / 外殼 | 324-ball FBGA (19 mm x 19 mm, 1.0 mm pitch) |
| Number of Terminals | 324 |
| 安裝方式 | Surface Mount |
| 工作溫度範圍 | 0°C to +85°C (commercial grade) |
| Speed Grade | C8 (speed grade 8) |
| Solder Finish | Lead-free (N suffix) |
| Configuration | SRAM-based, external configuration |
| RoHS 狀態 | Compliant (inferred from lead-free N finish) |
EP1C4F324C8N 324-ball fbga (19 mm x 19 mm, 1.0 mm pitch) 腳位配置指南
EP1C4F324C8N（324-ball fbga (19 mm x 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： EP1C4F324C8N.
請參閱 資料表 以查看完整腳位配置。
典型應用
EP1C4F324C8N 適用於 6 應用s: Industrial Control and Factory Automation, Communication Protocol Bridging, Motor Control and Drive Logic, Video and LED Display Timing, Test and Measurement Instrumentation, Legacy System Replacement and Repair.
Industrial Control and Factory Automation
The EP1C4F324C8N fits industrial control and factory automation boards that need medium-density glue logic, bus demultiplexing, and deterministic parallel I/O on a single 19 x 19 mm package. Its 4,000 logic elements can implement state machines for conveyor control, safety interlocks, and protocol bridging while 249 user I/Os connect to photocells, encoders, and industrial sensors. The 78,336 RAM bits support small FIFOs and register files for asynchronous data capture. Because this C8 part is rated for 0°C to +85°C, it is best suited for indoor control cabinets; choose the EP1C4F324I8N for uncontrolled enclosures. Configuration through an EPCS4 device keeps firmware updates simple in the field, and the low 1.5 V core supply simplifies power delivery surrounding 3.3 V I/O systems.
推薦
Communication Protocol Bridging
The EP1C4F324C8N can act as a flexible bridge between parallel microcontrollers and serial interfaces such as UART, SPI, I2C, or custom synchronous protocols. With 249 user I/Os, it can connect an 8-bit or 16-bit host bus while also sampling several serial lines, and its 4,000 logic elements implement shift registers, byte stuffing, and packet framing without an external ASIC. The 78,336 RAM bits provide enough storage for small TX/RX FIFOs and status registers. The commercial C8 speed grade is normally sufficient for 10–100 Mbps serial bridges, but timing should be verified if oversampling at higher rates. Place decoupling capacitors close to VCCINT and configure the FPGA from an EPCS or flash device on power-up. The 1.5 V core keeps power low for always-on communication equipment.
推薦
Motor Control and Drive Logic
The EP1C4F324C8N is suitable for motor-control logic including PWM generation, quadrature encoder decoding, current-loop timing, and fault latching in programmable logic. Its 4,000 logic elements are enough for a two-channel PWM and fault state machine with speed monitoring; 249 user I/Os connect to digital isolators, gate drivers, and encoder inputs. The 78,336 RAM bits can hold duty-cycle tables or diagnostic logs. In industrial motor drives, the commercial-temperature C8N works when the cabinet stays below 85°C; choose I6N, I7N, or I8N industrial variants for regenerative or outdoor equipment. FPGA-based PWM produces deterministic timing that minimizes jitter and audible switching noise compared to software-only implementations. An external EPCS4 configuration device helps the drive recover reliably after power glitches.
推薦
Video and LED Display Timing
For LED displays and small video panels, the EP1C4F324C8N can generate pixel clocks, scan timing signals, and panel control waveforms using its 4,000 logic elements. The 249 I/O pins connect to column drivers, row drivers, and FIFO memory interfaces, while 78,336 RAM bits buffer several lines of video or store gamma and calibration coefficients; full-frame storage requires external SDRAM or SRAM. The 19 x 19 mm FBGA-324 package fits compact LED controller boards. A 1.5 V core supply and selectable VCCIO banks allow direct connection to 3.3 V or 5 V display interface logic. Designers should confirm that speed grade -8 timing meets the required pixel clock; for higher resolution or refresh rates, C7N or C6N variants provide additional timing margin.
推薦
Test and Measurement Instrumentation
In benchtop instruments, the EP1C4F324C8N helps implement trigger logic, time-interval counters, and parallel data acquisition from ADCs. The 249 user I/Os are useful for connecting multiple high-speed ADCs, DACs, and front-panel controls; 4,000 logic elements can realize simple digital filters, pulse measurement, and data formatting without a DSP core. The 78,336 RAM bits provide acquisition FIFOs and calibration tables. The commercial 0°C to +85°C range is suitable for fan-cooled laboratory equipment, and the maturity of the Cyclone family makes the part common in service of legacy instruments. For noise-sensitive analog paths, separate analog and digital ground planes and route the 1.5 V core supply through a ferrite bead to reduce coupling into measurement channels.
推薦
Legacy System Replacement and Repair
When servicing boards originally built around Cyclone FPGAs, the EP1C4F324C8N is commonly used as a replacement because the C8 speed grade and lead-free N finish match many original production boards. It is pin-compatible with EP1C4F324C6N and EP1C4F324C7N on the same 324-ball FBGA footprint, so an existing PCB that originally shipped with a faster speed grade can often be fitted with C8N without layout changes, subject to timing checks. The 4,000-LE density, 249 user I/Os, and 78,336 RAM bits must match the netlist, and an EPCS4 or compatible configuration device is required. Before using this part in field repairs, confirm the original device was not an industrial grade and that the actual ambient temperature range is acceptable.
推薦
推薦產品摘要
工程參考資料，適用於 EP1C4F324C8N — 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 | EP1C4F324C7N | EP1C4F324C6N | EP1C4F324I8N |
|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera |
| Package | 324-FBGA (19 x 19 mm, 1.0 mm pitch) | 324-FBGA (same) | 324-FBGA (same) | 324-FBGA (same) |
| Logic Elements | 4000 | 4000 | 4000 | 4000 |
| Total RAM Bits | 78336 | 78336 | 78336 | 78336 |
| User I/O Count | 249 | 249 | 249 | 249 |
| Speed Grade | C8 (speed grade 8) | C7 (speed grade 7, faster) | C6 (speed grade 6, fastest commercial) | I8 (speed grade 8, industrial) |
| Operating Temperature Range | 0°C to +85°C (commercial) | 0°C to +85°C (commercial) | 0°C to +85°C (commercial) | -40°C to +100°C (industrial) |
| Lead-Free Solder Finish | Yes (N suffix) | Yes (N suffix) | Yes (N suffix) | Yes (N suffix) |
主要差異化特點
- Widely stocked legacy FPGA with drop-in F324 family variants (對比EP1C4F324C7N)
- Lead-free N finish for RoHS-sensitive assembly (對比EP1C4F324C8)
- Multiple industrial-temperature alternatives in the same package (對比EP1C4F324C6N)
設計說明
The EP1C4F324C8N uses a nominal 1.5 V core supply. Place a 10 uF bulk capacitor plus multiple 0.1 uF and 0.01 uF ceramics close to VCCINT balls to keep transient impedance low. The I/O banks require their own VCCIO supplies according to the external interface standard; do not connect all VCCIO pins to a single voltage unless every I/O bank uses that voltage. Estimated: a typical 4000-LE design consumes tens to low hundreds of mA, but actual current depends on utilization, clock rate, and I/O loading.
Because Cyclone FPGAs are SRAM-based, the EP1C4F324C8N must be configured from external memory after each power-up. Missing or incorrect EPCS/PROM configuration is the most common board fault. Tie configuration mode pins and nSTATUS, CONF_DONE, and DCLK per the Cyclone family handbook. If the configuration device is too slow or the bitstream size exceeds the memory, the device may not initialize. Confirm the EPCS capacity is sufficient for EP1C4 bitstream files before production.
The FBGA-324 package has no exposed thermal pad, so heat flows through solder balls and the PCB. Use at least four inner ground planes and place thermal vias in the pad area if the board must dissipate significant I/O power. For high-speed external memory or video interfaces, keep trace lengths matched and minimize vias between the FPGA and interface devices. Separate analog ground from digital ground near PLLs and clock inputs to reduce noise coupling.
合規資訊
The N suffix indicates lead-free finish; digchip snippet lists 'LEAD FREE, FBGA-324'. RoHS compliance is inferred from the lead-free ordering code, but no RoHS/REACH/halogen certificate was included in the verified web data.
