EPC16QC100 - 16Mb FPGA Configuration PROM, 100-PQFP | Altera
MPN： EPC16QC100 ✗ 停產EPC16QC100 概覽
A configuration PROM (sometimes called a configuration memory or boot PROM) is a non-volatile serial memory dedicated to storing an FPGA's bitstream. At power-up the FPGA loads its logic from the PROM over a serial or parallel configuration interface; the PROM effectively replaces a parallel flash device and a configuration controller. Within the broader hierarchy, configuration PROMs sit under memory ICs (non-volatile) -> boot/companion memory -> FPGA configuration subsystem.
Key features include 16 Mb of flash organized for Altera's enhanced configuration interface, 33 MHz maximum configuration clock, multi-device cascadable support for very large FPGA bitstreams, in-system programmability through the IEEE 1149.1 JTAG interface, and built-in compression support so larger bitstreams fit in the available flash. Compared with discrete flash plus a CPLD-based configuration controller, the EPC16QC100 integrates both functions on one die, reducing board area and BOM count.
Architecturally, the device combines a configuration controller and a flash array on a single chip, with dedicated interface pins (nSTATUS, CONF_DONE, nCONFIG, DCLK, DATA) that match Altera's older FPGA configuration scheme. It supports Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, and FLEX 10K device families. Note that Altera was acquired by Intel, and this part is widely reported as obsolete or NRND — modern Altera/Intel devices use Cyclone, Arria, and Stratix families with newer configuration schemes (active serial flash).
Typical applications include legacy FPGA configuration for industrial controllers, military/aerospace systems that still use ACEX/Stratix-class FPGAs, prototyping boards, and migration designs where existing bitstreams must be preserved. Designers should verify availability before committing new designs, as the part is increasingly difficult to source.
Design considerations include routing the JTAG chain (TCK/TMS/TDO/TDI) to all devices in the chain, providing proper decoupling (0.1 µF and 10 µF), and ensuring DCLK and DATA trace lengths match Altera's guidelines. Because this part targets legacy families, confirm that the target FPGA still accepts enhanced configuration PROM mode before qualifying the design.
This page synthesizes distributor pricing, parametric alternatives, and legacy design notes that go beyond the Altera datasheet to help engineers manage end-of-life risk for legacy FPGA systems.
直接替換替代品，適用於 EPC16QC100 — 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： EPC16QC100 （相同外形與佔位） — 差異在於 Package, Memory Type, Operating Temperature, Configuration Interface, Memory Size.
EPC8QC100N
✅ 直接替換聯絡詢價
查看資料表 →EPC16QC100N
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EPC16QI100
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EPC16QC-100T
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EPC16C100T
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EPC160C100
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EPC16QC100 最大額定值與電氣特性
| 記憶體類型 | Flash Configuration PROM (non-volatile) |
| 記憶體容量 | 16 Mbit |
| Configuration Clock (max) | 33 MHz |
| 介面 | Altera enhanced configuration serial interface |
| In-System Programmability | Yes (IEEE 1149.1 JTAG) |
| Supply Voltage (VCC) | 3.0 V to 3.6 V |
| 工作溫度 | -40C to +85C (commercial) |
| 封裝 | 100-pin PQFP (20 x 14 mm) |
| 安裝類型 | Surface Mount |
| Cascadable | Yes (multi-device chain) |
| Compression Support | Yes (Altera enhanced compression) |
| Supported FPGA Families | Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, FLEX 10K |
| Configuration Controller | Integrated on-die |
EPC16QC100 100-pin pqfp (20 x 14 mm) 腳位配置指南
EPC16QC100（100-pin pqfp (20 x 14 mm) 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： EPC16QC100.
請參閱 資料表 以查看完整腳位配置。
典型應用
EPC16QC100 適用於 6 應用s: Legacy Stratix FPGA Configuration, APEX II / APEX 20K Configuration Storage, ACEX 1K / FLEX 10K Boot Memory, Industrial Controller Bitstream Storage, Military / Aerospace Legacy Systems, Prototyping Boards and Lab Fixtures.
Legacy Stratix FPGA Configuration
The EPC16QC100 is the canonical boot memory for first-generation Altera Stratix FPGAs, providing 16 Mb of non-volatile storage for the configuration bitstream. At power-up the PROM serializes the bitstream to the Stratix device over DCLK/DATA, replacing an external flash + CPLD pair with one integrated IC. Compared with discrete flash, the integrated controller ensures Altera-compatible timing on CONF_DONE/nSTATUS, eliminating handshaking bugs. Designers should still terminate JTAG properly and observe Altera's DCLK signal-integrity guidelines.
推薦
APEX II / APEX 20K Configuration Storage
APEX II and APEX 20K FPGAs were designed to load from Altera enhanced configuration PROMs, and the EPC16QC100 is the high-density option that fits large APEX bitstreams. Using the EPC16QC100 keeps the BOM small and the configuration chain deterministic, which matters in industrial-control and military/aerospace systems that still deploy APEX designs. The 33 MHz DCLK keeps configuration time below one second for most APEX bitstreams, which is acceptable for systems that tolerate sub-second boot.
推薦
ACEX 1K / FLEX 10K Boot Memory
ACEX 1K and FLEX 10K devices can use the EPC16QC100 for non-volatile boot, with 16 Mb headroom for larger FLEX designs. This is helpful when migrating older FLEX 10K prototypes to a single stock-keeping part, simplifying spares inventory across product variants. Engineers often prefer the EPC16QC100 over smaller PROMs because one part covers all bitstream sizes in a multi-board family.
推薦
Industrial Controller Bitstream Storage
In industrial-control systems (PLCs, motor controllers, machine-vision processors) using legacy Altera FPGAs, the EPC16QC100 provides deterministic in-system field updates via JTAG. The 100-pin PQFP package is robust to industrial shock/vibration profiles, and the 3.3 V supply matches the legacy FPGA rail. JTAG in-system programming enables factory floor updates without removing the controller from the cabinet, reducing service cost.
推薦
Military / Aerospace Legacy Systems
Long-lifecycle aerospace and defense platforms continue to deploy ACEX 1K, APEX, and first-generation Stratix FPGAs that depend on the EPC16QC100 for configuration. Because these programs can run for 20+ years, sustaining engineering teams use the EPC16QC100 to keep fielded systems operational. Altera/Intel still supports last-time-buy windows for defense customers; plan reorders accordingly.
推薦
Prototyping Boards and Lab Fixtures
Universities, research labs, and FPGA prototype boards use the EPC16QC100 as a convenient way to load Altera reference designs without needing a PC-hosted programmer. The JTAG chain allows rapid bitstream iteration, and the 16 Mb capacity covers most academic reference designs. Engineers can also combine multiple EPC16QC100s in cascade to load several bitstream images for design-space exploration.
推薦
推薦產品摘要
工程參考資料，適用於 EPC16QC100 — 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 | EPC8QC100N | EPC16QC100N | EPC16QI100 | EPC16QC-100T |
|---|---|---|---|---|---|
| Package | PQFP-100 (20x14 mm) | PQFP-100 (same) | PQFP-100 (same) | PQFP-100 (same) | PQFP-100 (same) |
| Brand | Altera | Altera | Altera | Altera | Altera |
| Density | 16 Mb | 8 Mb | 16 Mb | 16 Mb | 16 Mb |
| Configuration Clock (max) | 33 MHz | 33 MHz | 33 MHz | 33 MHz | 33 MHz |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| In-System Programming | JTAG (IEEE 1149.1) | JTAG | JTAG | JTAG | JTAG |
| Temperature Grade | Commercial | Commercial | Industrial | Industrial | Commercial |
| Lifecycle Status | Obsolete/NRND | Obsolete | Obsolete | Obsolete | Obsolete |
主要差異化特點
- 16-Mbit density covers the largest legacy Altera bitstreams (對比EPC8QC100N)
- Single-chip flash + configuration controller (對比Discrete flash + CPLD controller)
- Altera enhanced configuration interface (33 MHz DCLK) (對比Passive-serial configuration)
設計說明
Estimated: when migrating from a discrete flash + CPLD controller to the EPC16QC100, designers sometimes leave the nCONFIG/nSTATUS pull-ups on the FPGA side and forget to verify CONF_DONE timing. The PROM drives CONF_DONE high only after the bitstream is fully delivered; if the FPGA's CONF_DONE pull-down remains too strong, the handshake fails. Confirm pull-up values against the target FPGA datasheet.
Place the EPC16QC100 as close as practical to the FPGA to minimize DCLK and DATA0 trace lengths. Add a 0.1 µF ceramic decoupling cap plus a 10 µF bulk cap within 5 mm of the VCC pins. Route DCLK as a controlled-impedance trace; long stubs will cause ringing that the FPGA may interpret as extra clock pulses, corrupting the bitstream.
Because the EPC16QC100 is obsolete/NRND, plan for last-time-buy windows and verify with Intel/Altera FAE before committing production. Recommended: stock a 12–18 month safety inventory and qualify a secondary source (EPC16QI100 or EPC8QC100N) so a single-source line-down is avoided.
合規資訊
Compliance information not present in verified web data; set to 'unknown'. EPC family was designed before AEC-Q100 was a typical Altera qualification, so AEC-Q100 is not applicable. Confirm lead-free/RoHS status with Intel/Altera for production orders.