EPC8QC100T - 8Mb Enhanced Configuration PROM, 100-PQFP | Intel (Altera)
MPN: EPC8QC100T ✗ Cuối đờiEPC8QC100T Tóm tắt
What is an enhanced configuration device? It is a non-volatile flash memory with a built-in configuration controller that automatically loads the bitstream into a companion FPGA at power-up, replacing older discrete EPROM plus microcontroller solutions. The EPC8 family sits in the Altera configuration-PROM hierarchy alongside EPC4 (4 Mbit) and EPC16 (16 Mbit), forming a scalable storage tier for FPGA configuration.
Key features of the EPC8QC100T include data compression that increases effective storage density, fast parallel configuration with a dedicated controller, and built-in JTAG support for in-system programming and verification. The device operates from a single 3.3 V supply and supports cascadable configuration for multi-device FPGA chains.
The architecture combines a flash memory array, a configuration controller, JTAG interface logic, and an FPGA configuration interface. The controller reads bitstream data from flash on FPGA nCONFIG assertion and serializes it onto the FPGA configuration bus using Altera's proprietary protocol, eliminating the need for external CPLD or microcontroller glue logic.
Typical applications include booting Altera Stratix, APEX 20K, ACEX 1K, and FLEX 10K FPGAs in telecommunications infrastructure, industrial control systems, test and measurement equipment, and prototyping boards. The 'T' suffix denotes Tape and Reel packaging for high-volume SMT assembly.
When designing with the EPC8QC100T, route the FPGA configuration bus (DCLK, DATA0, nCONFIG, nSTATUS, CONF_DONE) with controlled impedance and length matching to the target FPGA. Connect nINIT_CONF only when required and ensure nCE/nCS cascade logic is correct for multi-PROM chains.
This page synthesizes distributor availability, drop-in alternatives, and design notes that complement the manufacturer datasheet with engineering decision support not present on stock pages.
Bộ thay thế dễ dàng lắp đặt cho EPC8QC100T — 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 EPC8QC100T (cùng hình factor và footprint) — khác nhau ở Memory Type, Operating Temperature, Memory Size, Package, Configuration Interface.
EPC8QC100
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPC8QC100N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPC8QC100C
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPC8QC100DM
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPC16QC100T
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPC16QC100N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPC8QC100T Tỷ lệ tối đa & tính chất điện
| Kiểu bộ nhớ | Flash configuration PROM |
| Kích thước bộ nhớ | 8 Mbit |
| Configuration Interface | Altera FPGA proprietary parallel |
| Programming Interface | IEEE 1149.1 (JTAG) in-system programmable |
| Data Compression | Yes (increases effective density) |
| Điện áp cung cấp | 3.3 V |
| Supported FPGAs | Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, FLEX 10K |
| Hộp | PQFP-100 (20x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| Cascade Support | Yes (multi-device chains) |
Hướng dẫn cấu hình chân EPC8QC100T pqfp-100 (20x14 mm)
Cấu hình chân cho EPC8QC100T (pqfp-100 (20x14 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho EPC8QC100T.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
EPC8QC100T phù hợp cho 8 Áp dụngs: Altera Stratix FPGA Boot Configuration, APEX 20K / APEX II FPGA Configuration, ACEX 1K and FLEX 10K Series FPGA Boot, Telecommunications Infrastructure Equipment, Industrial Control and Factory Automation, Test and Measurement Instrumentation, Aerospace and Defense Legacy Systems, FPGA Development Boards and Prototyping.
Altera Stratix FPGA Boot Configuration
The EPC8QC100T stores the Stratix FPGA bitstream in 8 Mbit of onboard flash and serially streams it to the Stratix device at power-up via DCLK and DATA0, replacing legacy EPROM-plus-microcontroller solutions. With built-in compression, the effective bitstream capacity is roughly 16 Mbit typical, sufficient for many Stratix EP1S10/S25 designs. The 3.3 V single-supply rail matches Stratix I/O, eliminating level-shifters. The JTAG interface enables production-line programming and field updates without removing the board from service.
Được đề xuất
APEX 20K / APEX II FPGA Configuration
The EPC8QC100T is the canonical configuration PROM for Altera APEX 20K and APEX II families, providing up to 8 Mbit of raw bitstream storage that supports most APEX designs including EP20K200E, EP20K400E, and APEX II EP2A15/EP2A25 devices. Compression typically doubles effective density, so a single EPC8 handles APEX 20K designs that would otherwise need an external configuration controller. The dedicated configuration controller offloads the host CPU entirely, freeing the application processor to begin work after nCONFIG assertion.
Được đề xuất
ACEX 1K and FLEX 10K Series FPGA Boot
Smaller ACEX 1K and FLEX 10K devices such as EP1K10, EP1K30, EPF10K30E, and EPF10K50 typically fit within the EPC8QC100T's 8 Mbit raw capacity, especially with compression enabled. The single 3.3 V supply matches the I/O rails of these legacy FPGAs, simplifying board design. The 100-pin PQFP footprint is large enough to lay out manually on 4-layer boards, making this combination well-suited to legacy industrial control and telecom designs that still require Altera MAX+Plus II or Quartus bitstreams.
Được đề xuất
Telecommunications Infrastructure Equipment
The EPC8QC100T is widely deployed in mid-2000s telecom line cards, base-station controllers, and DSLAM backplanes where Altera APEX 20K and ACEX 1K FPGAs perform protocol bridging, TDM switching, or forward-error correction. The PROM's industrial temperature tolerance and surface-mount PQFP-100 package suit thermally constrained rack-mount designs. JTAG in-system programming enables remote firmware upgrades via boundary-scan access on assembled boards, critical for telecom service continuity.
Được đề xuất
Industrial Control and Factory Automation
Programmable Logic Controllers (PLCs), motor drives, and human-machine interface (HMI) panels frequently pair Altera ACEX 1K or FLEX 10K FPGAs with the EPC8QC100T for deterministic boot behavior. The PROM's cascade support enables multi-FPGA configurations on a single backplane, where several FPGAs share a daisy-chained PROM chain. Compression increases effective bitstream density so a single EPC8 can serve designs that would otherwise require a larger and more expensive EPC16.
Được đề xuất
Test and Measurement Instrumentation
Logic analyzers, oscilloscopes, and protocol analyzers built on Altera FPGAs benefit from the EPC8QC100T's fast parallel configuration that minimizes boot delay at instrument power-up. The flash-based storage allows end customers to load custom bitstreams via JTAG to repurpose the instrument, a common workflow in field-deployed test equipment. The PQFP-100 package is easily hand-solderable for prototype builds, while Tape and Reel packaging supports high-volume manufacturing of production test gear.
Được đề xuất
Aerospace and Defense Legacy Systems
Defense programs that standardized on Altera APEX 20K and ACEX 1K FPGAs in the 2000s continue to use the EPC8QC100T for configuration storage in radar, avionics, and electronic-warfare subsystems. The flash-based non-volatile storage avoids the radiation sensitivity of SRAM-based FPGAs during power-down, simplifying data-integrity requirements. Some part variants (e.g. EPC8QC100DM with dry-pack packaging) are specified for harsh-environment programs requiring extended qualification.
Được đề xuất
FPGA Development Boards and Prototyping
Academic and R&D FPGA development boards frequently pair Altera ACEX 1K, FLEX 10K, and APEX 20K devices with the EPC8QC100T to provide reproducible boot behavior independent of host configuration. The PROM's standard PQFP-100 footprint is easy to integrate on 4-layer prototype boards, and JTAG programming allows students and engineers to iterate on bitstreams without swapping chips. Multi-FPGA cascade support enables experiments with daisy-chained configuration on training hardware.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPC8QC100T — 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 | EPC8QC100 | EPC8QC100N | EPC8QC100C | EPC8QC100DM | EPC16QC100T | EPC16QC100N |
|---|---|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | PQFP-100 (20x14 mm) | PQFP-100 (20x14 mm) - same | PQFP-100 (20x14 mm) - same | PQFP-100 (20x14 mm) - same | PQFP-100 (20x14 mm) - same | PQFP-100 (20x14 mm) - same | PQFP-100 (20x14 mm) - same |
| Memory Size | 8 Mbit | 8 Mbit | 8 Mbit | 8 Mbit | 8 Mbit | 16 Mbit (+100%) | 16 Mbit (+100%) |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Programming Interface | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) |
| Supported FPGAs | Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, FLEX 10K | Same family support | Same family support | Same family support | Same family support | Same family support | Same family support |
| Cascade Support | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Data Compression | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Packaging Variant | Tape & Reel | Tray | Tray, Pb-free | Commercial temp, Tray | Dry-pack, Tray | Tape & Reel | Tray, Pb-free |
Bảo phân biệt quan trọng
- Tape and Reel packaging for SMT assembly (vsEPC8QC100)
- 8 Mbit capacity with built-in compression (vsEPC4QC100T)
- Backward-compatible upgrade path to higher density (vsEPC16QC100T)
Ghi chú thiết kế
Route the FPGA configuration bus (DCLK, DATA0, nCONFIG, nSTATUS, CONF_DONE) between the EPC8QC100T and the target FPGA with controlled impedance and matched trace lengths. According to the manufacturer datasheet, a 50-ohm characteristic impedance on these signals reduces reflections and prevents configuration failures. Keep the nCE/nCS cascade signals away from switching power-supply nodes to avoid spurious chip-selection glitches at boot.
Place a 0.1 microfarad decoupling capacitor as close as possible to the EPC8QC100T VCC pin, with a 10 microfarad bulk capacitor near the device. The PROM draws configuration current only during FPGA boot, so transient response on the 3.3 V rail matters. Adding a ferrite bead in series with the 3.3 V supply reduces noise coupling from adjacent switching regulators that could disrupt the configuration controller.
Do not connect nINIT_CONF unless multi-device cascade mode is required - tying it high via a pull-up resistor is the default safe configuration. Ensure the FPGA nSTATUS line can pull the PROM's OE/control inputs correctly; incorrect pull-up values can cause intermittent configuration failures at cold-boot. When migrating designs to EPC16QC100T, verify that the larger 16-Mbit image does not exceed the FPGA's maximum bitstream length specification.
Estimated: the PQFP-100 package with 0.65 mm pitch requires careful fanout - typical 4-layer stackup with 4-mil traces and 8-mil spaces allows escape routing on a single inner layer. Per the manufacturer datasheet, copper-pour thermal relief around the PQFP body improves solder joint reliability during reflow. Maintain at least 0.5 mm clearance between PROM pins and adjacent switching-converter nodes to minimize radiated noise coupling into the JTAG boundary-scan logic.
Thông tin tuân thủ
Compliance data not explicitly stated in the verified sources. Request latest RoHS/REACH declaration from Intel/Altera distributor FAE before production. AEC-Q100 not applicable - this is a logic/FPGA-configuration device, not an automotive analog IC.
