EPC1PI8N - 1Mb OTP FPGA Config PROM, 8-PDIP | Altera / Intel
MPN: EPC1PI8N ✗ Cuối đờiEPC1PI8N Tóm tắt
What is an FPGA configuration PROM? An FPGA configuration PROM is a non-volatile memory that holds the FPGA's bitstream and loads it into the SRAM-based logic fabric at power-up. PROMs sit in the boot chain between a board-level storage source and the FPGA, occupying the same category as boot EEPROMs and flash-loader devices. As a member of the broader FPGA configuration memory family, it bridges firmware storage and volatile programmable logic, and is itself a sub-class of non-volatile serial memory in the memory IC hierarchy.
Key differentiating features include 1-Mbit density, an industry-standard 4-pin serial interface (DATA, DCLK, nCS, OE), low-power CMOS technology and an operating temperature range of -40C to +85C. The 'N' suffix designates the standard 8-PDIP 0.300 inch through-hole package, and the 'I' indicates the industrial temperature grade.
The EPC1PI8N is built on a CMOS OTP process, allowing one-time in-system or pre-programmed configuration. Programming is performed by Altera's Quartus / MAX+PLUS II toolchain with the Altera Programming Unit (APU) or third-party programmers that support the EPC1 instruction set.
Typical applications include low-volume FPGA designs, factory-programmed industrial controllers, prototyping boards for legacy Altera FPGAs, and cost-sensitive embedded platforms that prefer a discrete configuration memory over a parallel flash plus controller. Its dual-voltage supply range allows direct interfacing to both 3.3V and 5V FPGA banks.
Design trade-off: because the EPC1PI8N is OTP, any firmware update requires a physical device swap or socketed adapter. Designers who anticipate in-field firmware revision should consider JTAG-direct configuration, a flash-based equivalent, or a socketed DIP footprint.
Bộ thay thế dễ dàng lắp đặt cho EPC1PI8N — 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 EPC1PI8N (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Interface, Supported FPGA Families, Memory Type.
EPC1PI8
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPC1064PI8
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPC1213PI8
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPC1PI8N Tỷ lệ tối đa & tính chất điện
| Kiểu bộ nhớ | OTP Configuration PROM |
| Kích thước bộ nhớ | 1 Mbit |
| Programmable Type | OTP (One-Time Programmable) |
| Giao diện | Serial (DATA, DCLK, nCS, OE) |
| Supply Voltage - Low | 3.0 V to 3.6 V |
| Supply Voltage - High | 4.5 V to 5.5 V |
| Hộp / Vỏ | 8-DIP (0.300 inch, 7.62 mm) |
| Kiểu lắp đặt | Through Hole |
| Nhiệt độ hoạt động | -40C to +85C |
| Packaging | Tube |
| Memory Configuration | x1 |
| Supported FPGA Families | ACEX 1K, APEX 20K, APEX II, Arria GX, Cyclone, Cyclone II, FLEX 10K, Mercury |
| Technology | CMOS |
| ECCN | 3A991.b.2.a |
Cấu hình chân EPC1PI8N
| Chân 1 | DATA — Serial data output to FPGA |
| Chân 2 | DCLK — Configuration clock input |
| Chân 3 | nCS — Chip select (active low) |
| Chân 4 | OE — Output enable (active high) |
| Chân 5 | VCC — Power supply (3.0-3.6 V or 4.5-5.5 V) |
| Chân 6 | GND — Ground |
| Chân 7 | NC — Not connected (per datasheet) |
| Chân 8 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
EPC1PI8N phù hợp cho 6 Áp dụngs: Legacy Altera FPGA Configuration (Cyclone / APEX / FLEX), Industrial Control / Factory Automation Boards, Prototyping and Education Boards (Legacy Altera), Low-Volume / Cost-Sensitive Embedded Products, Mil/Aero Retrofit and Form-Fit-Function Replacement, Test & Measurement Hardware.
Legacy Altera FPGA Configuration (Cyclone / APEX / FLEX)
The EPC1PI8N's 1-Mbit density and Altera serial protocol make it a direct fit for configuring ACEX 1K, APEX 20K, APEX II, Arria GX, Cyclone, Cyclone II, FLEX 10K and Mercury FPGAs at power-up. The dual 3.3 V / 5 V supply range matches both legacy 5 V and modern 3.3 V FPGA banks without level shifters. Placed in series between the board's power-on reset and the FPGA's MSEL0/AS pins, the PROM hands the bitstream over to the LUT fabric in roughly 40-200 ms depending on FPGA density, freeing the CPU/MCU from any boot-time configuration duty.
Được đề xuất
Industrial Control / Factory Automation Boards
Industrial controllers in factory-automation lines often lock the FPGA bitstream at board build time, making the EPC1PI8N's OTP architecture a cost-effective, tamper-resistant choice. The -40C to +85C industrial temperature range supports unheated enclosures and outdoor cabinets. The through-hole PDIP package tolerates vibration and conformal-coating rework better than fine-pitch surface-mount parts, which is why the EPC1PI8N still ships in factory-floor PLC, motor-drive and SCADA board designs.
Được đề xuất
Prototyping and Education Boards (Legacy Altera)
University labs and FPGA training kits using legacy Altera dev boards (e.g. early Cyclone / APEX reference designs) often include an EPC1PI8N as the configuration source so students see a real serial PROM-to-FPGA boot path. The PDIP package is breadboard- and socket-friendly, allowing students to swap pre-programmed bitstreams manually. The 1-Mbit capacity is ample for the small reference designs typically used in coursework.
Được đề xuất
Low-Volume / Cost-Sensitive Embedded Products
For low-volume production runs where NRE costs must be amortized across a few hundred boards, the EPC1PI8N's OTP architecture and PDIP footprint eliminate the need for a flash controller plus serial-flash IC. Engineers can program the device once during board test and ship a sealed, untamperable configuration. This reduces BOM by 1-2 parts and avoids the firmware-update infrastructure (bootloader, dual-image) required for in-system flash-based PROMs.
Được đề xuất
Mil/Aero Retrofit and Form-Fit-Function Replacement
Long-lifecycle defense and aerospace programs often need form-fit-function equivalents for obsolete Altera boot PROMs to keep fielded systems supportable without re-spinning the FPGA board. The EPC1PI8N's 8-PDIP footprint and bitstream-compatible protocol allow direct socket replacement in legacy designs when modern flash-based PROMs are not pin-compatible. The -40C to +85C industrial temperature grade meets most ground-vehicle and avionics-bay environments.
Được đề xuất
Test & Measurement Hardware
Test and measurement instruments (logic-analyzer probes, protocol exercisers, ATE fixtures) often use small FPGAs as state machines, and a pre-programmed EPC1PI8N lets the manufacturer lock calibration constants and IP into the FPGA without exposing them to the field. The 1-Mbit density covers most state-machine bitstreams, and the PDIP package simplifies board rework when a calibration update requires a new PROM (just pull and swap).
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPC1PI8N — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EPC1PI8 | EPC1064PI8 | EPC1213PI8 |
|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera |
| Package | 8-PDIP (0.300 inch) | 8-PDIP (0.300 inch) - same | 8-PDIP (0.300 inch) - same | 8-PDIP (0.300 inch) - same |
| Memory Size | 1 Mbit | 1 Mbit | 64 Kbit | 213 Kbit |
| Programmable Type | OTP | OTP | OTP | OTP |
| Interface | Altera Serial (DATA/DCLK/nCS/OE) | Altera Serial (DATA/DCLK/nCS/OE) | Altera Serial | Altera Serial |
| Supported FPGA Families | ACEX 1K, APEX, Arria GX, Cyclone, Cyclone II, FLEX 10K, Mercury | Same families | Older FLEX / ACEX only (smaller bitstreams) | FLEX 10K / ACEX 1K / APEX 20K |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete |
Bảo phân biệt quan trọng
- Largest bitstream capacity in the EPC1 8-PDIP family (vsEPC1064PI8)
- Standard 0.300 inch PDIP package for easy prototyping (vsEPC1PC8)
- Dual 3.3 V / 5 V supply range (vsEPC1441PI8)
Ghi chú thiết kế
The EPC1PI8N draws only micro-amps in standby but requires a clean 3.0-3.6 V or 4.5-5.5 V rail with at least 1 uF decoupling placed within 5 mm of the VCC pin. Sharing the FPGA's configuration-bank supply is acceptable, but do NOT route the PROM from a switching converter without adequate bulk filtering - the DCLK edge jitter couples into the bitstream and causes FPGA configuration failures.
Place the EPC1PI8N as close as practical to the FPGA's DATA / DCLK / nCS / OE pins. Keep trace lengths matched within 10 mm to avoid setup/hold violations at high DCLK frequencies (the PROM drives DCLK back to the FPGA). The 8-PDIP package is through-hole; provide a socket footprint if field firmware updates are anticipated, otherwise solder directly to the board.
Because the EPC1PI8N is OTP, any bitstream error is permanent - designers must validate the bitstream on a socketed PROM in-circuit before committing to a production run. Also verify MSEL0/AS mode pins on the FPGA are set for serial configuration, and that nCS pull-up is present on the board - a floating nCS can prevent the PROM from enabling the DATA output.
Thông tin tuân thủ
RoHS / REACH / lead-free status is not stated in the verified distributor excerpts; confirm with the supplier before using in RoHS-only production. ECCN 3A991.b.2.a per GlobalSpec listing. Part is obsolete.
