EPC2LC20V - Altera 1.6Mb Flash Config Device, PLCC-20 | Intel
MPN： EPC2LC20V ✗ 停產EPC2LC20V 概覽
A Configuration Device is a non-volatile memory that stores the FPGA's configuration bitstream and serially or byte-parallel delivers it to the FPGA's DATA, DCLK, and nCONFIG pins at power-up. In the broader taxonomy, an FPGA configuration PROM sits below non-volatile memory > Flash memory > PROM > configuration memory within the semiconductor hierarchy. It bridges the volatile SRAM-LUT architecture (which loses configuration when power is removed) with a permanent, field-updatable boot source - eliminating the need for external boot PROMs from third-party vendors and enabling remote firmware revision via JTAG.
Key features include 1.6 Mb of usable configuration storage (more than 4x the original EPC1), a flexible serial or 8-bit parallel configuration interface, an on-chip oscillator to generate DCLK, JTAG boundary-scan support (IEEE 1149.1), and in-system programmability through JTAG without external programmer hardware. The PLCC-20 footprint provides rugged mechanical compliance for industrial through-hole and socketed assemblies, and the device is compatible with the older EPC1 / EPC1064 / EPC1441 pinouts on a 1:1 basis within the same package family.
Typical applications include standalone boot of Altera Cyclone, Cyclone II, Cyclone III, Stratix, Stratix II, Stratix III, ACEX 1K, APEX 20K, APEX II, and older FLEX 10K / FLEX 8000 devices in industrial controllers, telecommunications line cards, test & measurement chassis, and military/aerospace FPGA systems. Because the EPC2 supports both serial and 8-bit byte-wide configuration, a single PROM can serve either low-pin-count or high-throughput FPGA boot scenarios.
When designing with this device, verify that the FPGA's configuration mode (AS, PS, or JTAG-only) matches the EPC2's supported modes, since the EPC2 is intended for PS (Passive Serial) and JTAG programming - it does not support Altera Active Serial (AS) mode, which uses serial Flash such as EPCS / EPCQ devices. Add a 0.1 uF decoupling capacitor near the VCC pin and ensure nINIT_CONF and nSTATUS are correctly tied to the FPGA's nCONFIG / nSTATUS pins.
This page synthesizes distributor pricing, drop-in compatible configuration-memory alternatives, JTAG programming notes, and PLCC-20 package cross-references not found in the original Altera datasheet - giving a single source for engineers re-spinning legacy Altera FPGA designs.
直接替換替代品，適用於 EPC2LC20V — 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： EPC2LC20V （相同外形與佔位） — 差異在於 Memory Type, Package, Configuration Interface, Supported FPGA Families, Memory Size.
EPC2LC20N
✅ 直接替換✗ 缺貨
$7.4 / 單位
查看資料表 →EPC2LC20
✅ 直接替換✗ 缺貨
$7.2 / 單位
查看資料表 →EPC2LC20NA
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EPC1LC20
✅ 直接替換聯絡詢價
查看資料表 →EPC1LC20N
✅ 直接替換聯絡詢價
查看資料表 →EPC1441LC20
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EPC2LC20V 最大額定值與電氣特性
| Product Type | Flash Configuration Device (FPGA configuration PROM) |
| 記憶體容量 | 1.6 Mb (1,678,336 bits) |
| Configuration Interface | Serial (Passive Serial) or 8-bit parallel |
| Maximum Configuration Clock | 10 MHz |
| Operating Voltage (VCC) | 3.0 V to 3.6 V (3.3 V typ.) |
| Program/Erase Cycles | 100,000 cycles minimum |
| Data Retention | 20 years minimum |
| JTAG Support | IEEE 1149.1 Boundary Scan, in-system programmable |
| 封裝 | PLCC-20 (JEDEC MO-047) |
| 工作溫度 | -40C to +85C (industrial) |
| Storage Temperature | -65C to +150C |
| Lead-Free / RoHS | Lead-free (V suffix), RoHS compliant |
| Compatible FPGAs | Cyclone, Stratix, APEX 20K, ACEX 1K, FLEX 10K, FLEX 8000 |
| On-chip Oscillator | Yes (generates DCLK) |
| Configuration Time (typical) | Depends on FPGA bitstream length and clock mode |
EPC2LC20V 腳位配置
| 腳位 1 | DATA[0] — Serial configuration data output (bit 0 of byte-wide mode) |
| 腳位 2 | DATA[1] — Configuration data output bit 1 (byte-wide mode) |
| 腳位 3 | DATA[2] — Configuration data output bit 2 (byte-wide mode) |
| 腳位 4 | nCS — Chip select (active low) for byte-wide mode |
| 腳位 5 | nSTATUS — Open-drain status flag to FPGA nSTATUS |
| 腳位 6 | OE — Output enable (active low) for serial data |
| 腳位 7 | nCONFIG — Configuration initiate / reset from FPGA |
| 腳位 8 | DCLK — Configuration clock to FPGA (generated internally by EPC2) |
| 腳位 9 | VCC — +3.3 V power supply |
| 腳位 10 | GND — Ground |
| 腳位 11 | TDI — JTAG Test Data In (IEEE 1149.1) |
| 腳位 12 | TMS — JTAG Test Mode Select |
| 腳位 13 | TCK — JTAG Test Clock |
| 腳位 14 | TDO — JTAG Test Data Out |
| 腳位 15 | nINIT_CONF — Initiate configuration (active low) to FPGA nCONFIG |
| 腳位 16 | nCE — Chip enable cascade (active low) for multi-PROM daisy-chain |
| 腳位 17 | DATA[3] — Configuration data output bit 3 (byte-wide mode) |
| 腳位 18 | DATA[4] — Configuration data output bit 4 (byte-wide mode) |
| 腳位 19 | DATA[5] — Configuration data output bit 5 (byte-wide mode) |
| 腳位 20 | DATA[6]/DATA[7] — Configuration data output bits 6 and 7 (byte-wide mode, shared pin) |
典型應用
EPC2LC20V 適用於 6 應用s: Cyclone FPGA Boot PROM, Stratix Telecom Line Card, APEX 20K Industrial Controller, Test & Measurement Chassis, Military / Aerospace FPGA System, FPGA Development Board Boot Loader.
Cyclone FPGA Boot PROM
The EPC2LC20V's 1.6 Mb of Flash storage comfortably covers the configuration bitstream of Altera Cyclone, Cyclone II, and Cyclone III devices in Passive Serial mode. With 10 MHz DCLK the EPC2 generates the entire bitstream in under 200 ms for a typical Cyclone II EP2C35 design. The PLCC-20 socketed package allows field replacement without desoldering, and JTAG in-system programming lets a technician rewrite the bitstream at any point in the product lifecycle - ideal for industrial controller firmware revisions.
推薦
Stratix Telecom Line Card
Altera Stratix and Stratix II FPGAs in telecom line cards require reliable non-volatile boot storage that survives 20+ years in service. The EPC2LC20V delivers exactly that: 1.6 Mb Flash with 20-year data retention, industrial -40C to +85C operation, and JTAG in-system programming per IEEE 1149.1 so firmware updates can be pushed to deployed line cards remotely. The 8-bit parallel configuration mode available on EPC2 cuts Stratix boot time roughly 8x versus serial boot, helping meet fast-restart requirements after power cycling.
推薦
APEX 20K Industrial Controller
Legacy Altera APEX 20K and APEX II designs in long-life industrial controllers still rely on EPC1/EPC2 family PROMs for boot. The EPC2LC20V offers 4x the storage of the original EPC1LC20 (1.6 Mb vs 0.4 Mb), enabling APEX 20K200 / APEX 20K400 bitstreams without squeezing. The PLCC-20 footprint is pin-compatible with EPC1 sockets, simplifying inventory and replacement in legacy systems. 100,000 program/erase cycles support frequent firmware revision during the controller's 15-20 year service life.
推薦
Test & Measurement Chassis
Modular T&M chassis typically use multiple Altera FPGAs - one per measurement slot - each requiring its own configuration PROM. The EPC2LC20V in PLCC-20 provides the rugged mechanical form factor needed for socketed field service, and the JTAG chain lets the chassis controller reconfigure all FPGAs simultaneously. With 1.6 Mb Flash per device, a single EPC2LC20V covers the bitstream of mid-complexity Altera ACEX 1K, FLEX 10K, or smaller Cyclone II devices commonly used in instrument digitizer and signal-conditioning cards.
推薦
Military / Aerospace FPGA System
Ruggedized military and aerospace FPGA platforms depend on PLCC-20 socketed PROMs for ease of factory programming and field updates. The EPC2LC20V's industrial -40C to +85C operating range meets most military ground and avionics thermal profiles, and its lead-free PLCC-20 package satisfies RoHS requirements for new programs. The on-chip DCLK oscillator removes the need for an external configuration clock source - valuable in low-BOM aerospace designs where every additional component is a reliability concern.
推薦
FPGA Development Board Boot Loader
Altera/Intel FPGA development kits such as the Cyclone II Nios II and APEX 20K reference boards historically included an EPC2LC20V socket on the board for evaluation use. The PLCC-20 ZIF socket lets students and engineers swap bitstreams without soldering, and the JTAG interface lets the Altera USB-Blaster or ByteBlaster program the PROM directly. With 1.6 Mb Flash, the EPC2LC20V can store multiple demo projects including Nios II firmware + soft-core CPU bitstreams for the Cyclone II family.
推薦
推薦產品摘要
工程參考資料，適用於 EPC2LC20V — 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 | EPC2LC20N | EPC2LC20 | EPC2LC20NA | EPC1LC20 | EPC1441LC20 |
|---|---|---|---|---|---|---|
| Brand | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) |
| Package | PLCC-20 | PLCC-20 - same | PLCC-20 - same | PLCC-20 - same | PLCC-20 - same | PLCC-20 - same |
| Memory Size | 1.6 Mb Flash | 1.6 Mb Flash | 1.6 Mb Flash | 1.6 Mb Flash | 0.4 Mb Flash (-75%) | 0.4 Mb OTP EPROM (-75%) |
| Technology | Flash (100k cycles) | Flash (100k cycles) | Flash (100k cycles) | Flash (100k cycles) | Flash (100k cycles) | OTP EPROM (one-time) |
| JTAG (IEEE 1149.1) | Yes (in-system programmable) | Yes (in-system programmable) | Yes (in-system programmable) | Yes (in-system programmable) | Yes (in-system programmable) | No (OTP only) |
| Configuration Modes | Passive Serial + 8-bit parallel | Passive Serial + 8-bit parallel | Passive Serial + 8-bit parallel | Passive Serial + 8-bit parallel | Passive Serial only | Passive Serial only |
| Max DCLK Frequency | 10 MHz | 10 MHz | 10 MHz | 10 MHz | 10 MHz | 10 MHz |
| Lead-Free / RoHS | Yes (V suffix, lead-free) | No (Sn/Pb finish) | No (Sn/Pb finish) | No (Sn/Pb finish) | No (Sn/Pb finish) | No (Sn/Pb finish) |
主要差異化特點
- Lead-free / RoHS compliant PLCC-20 package (對比EPC2LC20N)
- 4x the configuration memory of EPC1 family (對比EPC1LC20)
- 8-bit parallel configuration mode support (對比EPC1441LC20)
設計說明
The EPC2LC20V operates from a single 3.3 V supply (3.0 V to 3.6 V) per the Altera datasheet. Place a 0.1 uF decoupling capacitor as close as possible to the VCC pin (pin 9) and a 10 uF bulk capacitor near the PLCC-20 socket to suppress the in-rush transient when the EPC2 begins driving DCLK into the FPGA. During JTAG programming, peak current can briefly reach ~30 mA; the bulk capacitor prevents the VCC rail from sagging.
Route DCLK and DATA[0] as a matched-length pair to the FPGA's DCLK and DATA0 inputs, keeping trace length under 50 mm to avoid ringing. For 8-bit parallel configuration, route DATA[0..7] as a byte-wide bus with matched lengths, and tie the EPC2 nCS pin to the FPGA's nCONFIG so configuration begins only after the FPGA is ready. Keep JTAG pins (TDI/TMS/TCK/TDO) in a dedicated daisy-chain segment so the EPC2 and target FPGA share the chain without stubs.
Do NOT connect the EPC2LC20V to the EPCS / EPCQ Active Serial (AS) interface of newer Altera/Intel FPGAs (Cyclone IV onward) - the EPC2 only supports Passive Serial (PS) and JTAG modes. Attempting AS-mode operation will leave the FPGA unconfigured. Also verify that the FPGA's bitstream fits within 1.6 Mb - if it does not, cascade a second EPC2 device using the nCE pin to expand the effective storage.
合規資訊
Lead-free (V suffix) per Altera package designation. AEC-Q100 qualification not stated by manufacturer - not suitable for automotive safety-critical applications without further qualification. RoHS and REACH compliance inferred from lead-free package marking.
