EPF6024AQC208-2 - FLEX 6000 FPGA, 24K Gates, 208-PQFP | Intel
MPN: EPF6024AQC208-2 ✗ Cuối đờiEPF6024AQC208-2 Tóm tắt
What is an FPGA? A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that allows designers to implement custom digital logic circuits after manufacturing. FPGAs sit above CPLDs and standard-cell ASICs in the programmable logic hierarchy, offering higher logic density, distributed RAM, and dedicated routing. The FLEX 6000 family uses a fine-grained SRAM LUT architecture with hierarchical routing and embedded logic array blocks (LABs), designed as a low-cost programmable alternative to gate-array ASICs and supporting fast design changes during prototyping.
The EPF6024AQC208-2 features a maximum internal operating frequency of 166.67 MHz (some sources quote 142.86 MHz), 171 user I/Os, and 3.3 V core supply. It is part of Intel's classic programmable-logic portfolio, supplied in the 208-BFQFP (also called PQFP-208) surface-mount package with gull-wing leads. The device is in-system programmable via a JTAG interface (IEEE 1149.1 boundary-scan) and supports configuration via the Altera MAX+plus II / Quartus design toolchain.
Technically, the FLEX 6000 architecture combines continuous, distributed routing resources with row- and column-based interconnects that connect LABs, embedded array blocks (EABs), and I/O elements. Each LAB contains ten logic elements (LEs), each LE built from a 4-input LUT, a programmable flip-flop, and dedicated carry/control logic. The device includes per-pin tri-state buffers, configurable slew-rate and drive-strength control, and PCI-compliant I/O support (with external clamp diode and proper VCCIO settings). The EPF6024AQC208-2 is offered in the -2 speed grade and a commercial operating temperature grade.
Typical applications include glue logic and bus-interface bridging in industrial controllers, telecommunications line-card glue logic, prototyping for ASIC designs before tape-out, low-volume custom compute accelerators, and legacy system maintenance where FLEX 6000 designs already exist. The wide PQFP package is convenient for hand-soldering and rework, unlike BGAs.
Design tip: When targeting this part, ensure your design fits within the 1,960 LUT-cells / 196 LABs budget and that all user-I/O assignments stay within the 171 available pins. Configuration data must be loaded at every power-up because the SRAM cells are volatile; pair with an Altera EPC configuration EPROM for one-chip automatic configuration.
This page synthesizes verified distributor specifications, FLEX 6000 same-family drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet to accelerate board bring-up and part substitution.
Bộ thay thế dễ dàng lắp đặt cho EPF6024AQC208-2 — 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 EPF6024AQC208-2 (cùng hình factor và footprint) — khác nhau ở Process Technology, Operating Temperature, Package, Device Type, Configuration Method.
EPF6024AQC208-2N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF6024AQC208-3N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF6024AQC208-3
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF6024AQC208-1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF6024AQC208-1N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF6024AQC208-2 Tỷ lệ tối đa & tính chất điện
| Family | FLEX 6000 |
| Device Type | FPGA (SRAM-LUT, SRAM-based) |
| Logic Cells | 1960 |
| Logic Array Blocks (LABs) | 196 |
| Typical Gates | 24,000 |
| Maximum User I/Os | 171 |
| Số lượng chân | 208 |
| Package Type | 208-BFQFP (PQFP-208, plastic quad flat pack, gull-wing) |
| Package Code | FQFP, SQUARE |
| Process Technology | 0.42 µm CMOS |
| Điện áp cung cấp | 3.3 V |
| Maximum Internal Frequency | 166.67 MHz |
| Nhiệt độ hoạt động | 0 °C to 85 °C (commercial) |
| Kiểu lắp đặt | Surface Mount (gull-wing leads) |
| Speed Grade | -2 |
| Configuration Method | JTAG (IEEE 1149.1) + serial/parallel EPROM |
| Programmability | SRAM-based, in-system programmable (volatile) |
Cấu hình chân EPF6024AQC208-2
| Chân 1 | I/O — User I/O (bank 1) - bidirectional logic pin |
| Chân 2 | I/O — User I/O (bank 1) |
| Chân 3 | I/O — User I/O (bank 1) |
| Chân 4 | VCCINT — Internal core logic supply (3.3 V) |
| Chân 5 | I/O — User I/O (bank 1) |
| Chân 6 | I/O — User I/O (bank 1) |
| Chân 7 | I/O — User I/O (bank 1) |
| Chân 8 | GND — Ground |
| Chân 9 | I/O — User I/O (bank 1) |
| Chân 10 | I/O — User I/O (bank 1) |
| Chân 11 | I/O — User I/O (bank 1) |
| Chân 12 | I/O — User I/O (bank 1) |
| Chân 13 | I/O — User I/O (bank 1) |
| Chân 14 | I/O — User I/O (bank 1) |
| Chân 15 | VCCIO — I/O supply voltage (3.3 V) |
| Chân 16 | I/O — User I/O (bank 1) |
| Chân 17 | I/O — User I/O (bank 1) |
| Chân 18 | I/O — User I/O (bank 1) |
| Chân 19 | GND — Ground |
| Chân 20 | I/O — User I/O (bank 1) |
| Chân 21 | I/O — User I/O (bank 1) |
| Chân 22 | I/O — User I/O (bank 1) |
| Chân 23 | I/O — User I/O (bank 1) |
| Chân 24 | I/O — User I/O (bank 1) |
| Chân 25 | I/O — User I/O (bank 1) |
| Chân 26 | I/O — User I/O (bank 1) |
| Chân 27 | I/O — User I/O (bank 1) |
| Chân 28 | VCCINT — Internal core logic supply (3.3 V) |
| Chân 29 | I/O — User I/O (bank 1) |
| Chân 30 | I/O — User I/O (bank 1) |
| Chân 31 | I/O — User I/O (bank 1) |
| Chân 32 | I/O — User I/O (bank 1) |
| Chân 33 | GND — Ground |
| Chân 34 | I/O — User I/O (bank 1) |
| Chân 35 | I/O — User I/O (bank 1) |
| Chân 36 | I/O — User I/O (bank 1) |
| Chân 37 | I/O — User I/O (bank 1) |
| Chân 38 | I/O — User I/O (bank 1) |
| Chân 39 | VCCIO — I/O supply voltage (3.3 V) |
| Chân 40 | I/O — User I/O (bank 1) |
| Chân 41 | I/O — User I/O (bank 1) |
| Chân 42 | I/O — User I/O (bank 1) |
| Chân 43 | GND — Ground |
| Chân 44 | I/O — User I/O (bank 1) |
| Chân 45 | I/O — User I/O (bank 1) |
| Chân 46 | I/O — User I/O (bank 1) |
| Chân 47 | I/O — User I/O (bank 1) |
| Chân 48 | I/O — User I/O (bank 1) |
| Chân 49 | I/O — User I/O (bank 1) |
| Chân 50 | I/O — User I/O (bank 1) |
| Chân 51 | I/O — User I/O (bank 1) |
| Chân 52 | VCCINT — Internal core logic supply (3.3 V) |
| Chân 53 | I/O — User I/O (bank 2) |
| Chân 54 | I/O — User I/O (bank 2) |
| Chân 55 | I/O — User I/O (bank 2) |
| Chân 56 | I/O — User I/O (bank 2) |
| Chân 57 | GND — Ground |
| Chân 58 | I/O — User I/O (bank 2) |
| Chân 59 | I/O — User I/O (bank 2) |
| Chân 60 | I/O — User I/O (bank 2) |
| Chân 61 | I/O — User I/O (bank 2) |
| Chân 62 | I/O — User I/O (bank 2) |
| Chân 63 | VCCIO — I/O supply voltage (3.3 V) |
| Chân 64 | I/O — User I/O (bank 2) |
| Chân 65 | I/O — User I/O (bank 2) |
| Chân 66 | I/O — User I/O (bank 2) |
| Chân 67 | GND — Ground |
| Chân 68 | I/O — User I/O (bank 2) |
| Chân 69 | I/O — User I/O (bank 2) |
| Chân 70 | I/O — User I/O (bank 2) |
| Chân 71 | I/O — User I/O (bank 2) |
| Chân 72 | I/O — User I/O (bank 2) |
| Chân 73 | I/O — User I/O (bank 2) |
| Chân 74 | I/O — User I/O (bank 2) |
| Chân 75 | I/O — User I/O (bank 2) |
| Chân 76 | VCCINT — Internal core logic supply (3.3 V) |
| Chân 77 | I/O — User I/O (bank 2) |
| Chân 78 | I/O — User I/O (bank 2) |
| Chân 79 | I/O — User I/O (bank 2) |
| Chân 80 | I/O — User I/O (bank 2) |
| Chân 81 | GND — Ground |
| Chân 82 | I/O — User I/O (bank 2) |
| Chân 83 | I/O — User I/O (bank 2) |
| Chân 84 | I/O — User I/O (bank 2) |
| Chân 85 | I/O — User I/O (bank 2) |
| Chân 86 | I/O — User I/O (bank 2) |
| Chân 87 | VCCIO — I/O supply voltage (3.3 V) |
| Chân 88 | I/O — User I/O (bank 2) |
| Chân 89 | I/O — User I/O (bank 2) |
| Chân 90 | I/O — User I/O (bank 2) |
| Chân 91 | GND — Ground |
| Chân 92 | I/O — User I/O (bank 2) |
| Chân 93 | I/O — User I/O (bank 2) |
| Chân 94 | I/O — User I/O (bank 2) |
| Chân 95 | I/O — User I/O (bank 2) |
| Chân 96 | I/O — User I/O (bank 2) |
| Chân 97 | I/O — User I/O (bank 2) |
| Chân 98 | I/O — User I/O (bank 2) |
| Chân 99 | I/O — User I/O (bank 2) |
| Chân 100 | VCCINT — Internal core logic supply (3.3 V) |
| Chân 101 | I/O — User I/O (bank 3) |
| Chân 102 | I/O — User I/O (bank 3) |
| Chân 103 | I/O — User I/O (bank 3) |
| Chân 104 | I/O — User I/O (bank 3) |
| Chân 105 | GND — Ground |
| Chân 106 | I/O — User I/O (bank 3) |
| Chân 107 | I/O — User I/O (bank 3) |
| Chân 108 | I/O — User I/O (bank 3) |
| Chân 109 | I/O — User I/O (bank 3) |
| Chân 110 | I/O — User I/O (bank 3) |
| Chân 111 | VCCIO — I/O supply voltage (3.3 V) |
| Chân 112 | I/O — User I/O (bank 3) |
| Chân 113 | I/O — User I/O (bank 3) |
| Chân 114 | I/O — User I/O (bank 3) |
| Chân 115 | GND — Ground |
| Chân 116 | I/O — User I/O (bank 3) |
| Chân 117 | I/O — User I/O (bank 3) |
| Chân 118 | I/O — User I/O (bank 3) |
| Chân 119 | I/O — User I/O (bank 3) |
| Chân 120 | I/O — User I/O (bank 3) |
| Chân 121 | I/O — User I/O (bank 3) |
| Chân 122 | I/O — User I/O (bank 3) |
| Chân 123 | I/O — User I/O (bank 3) |
| Chân 124 | VCCINT — Internal core logic supply (3.3 V) |
| Chân 125 | I/O — User I/O (bank 3) |
| Chân 126 | I/O — User I/O (bank 3) |
| Chân 127 | I/O — User I/O (bank 3) |
| Chân 128 | I/O — User I/O (bank 3) |
| Chân 129 | GND — Ground |
| Chân 130 | I/O — User I/O (bank 3) |
| Chân 131 | I/O — User I/O (bank 3) |
| Chân 132 | I/O — User I/O (bank 3) |
| Chân 133 | I/O — User I/O (bank 3) |
| Chân 134 | I/O — User I/O (bank 3) |
| Chân 135 | VCCIO — I/O supply voltage (3.3 V) |
| Chân 136 | I/O — User I/O (bank 4) |
| Chân 137 | I/O — User I/O (bank 4) |
| Chân 138 | I/O — User I/O (bank 4) |
| Chân 139 | GND — Ground |
| Chân 140 | I/O — User I/O (bank 4) |
| Chân 141 | I/O — User I/O (bank 4) |
| Chân 142 | I/O — User I/O (bank 4) |
| Chân 143 | I/O — User I/O (bank 4) |
| Chân 144 | I/O — User I/O (bank 4) |
| Chân 145 | I/O — User I/O (bank 4) |
| Chân 146 | I/O — User I/O (bank 4) |
| Chân 147 | I/O — User I/O (bank 4) |
| Chân 148 | VCCINT — Internal core logic supply (3.3 V) |
| Chân 149 | I/O — User I/O (bank 4) |
| Chân 150 | I/O — User I/O (bank 4) |
| Chân 151 | I/O — User I/O (bank 4) |
| Chân 152 | I/O — User I/O (bank 4) |
| Chân 153 | GND — Ground |
| Chân 154 | I/O — User I/O (bank 4) |
| Chân 155 | I/O — User I/O (bank 4) |
| Chân 156 | I/O — User I/O (bank 4) |
| Chân 157 | I/O — User I/O (bank 4) |
| Chân 158 | I/O — User I/O (bank 4) |
| Chân 159 | VCCIO — I/O supply voltage (3.3 V) |
| Chân 160 | I/O — User I/O (bank 4) |
| Chân 161 | I/O — User I/O (bank 4) |
| Chân 162 | I/O — User I/O (bank 4) |
| Chân 163 | GND — Ground |
| Chân 164 | I/O — User I/O (bank 4) |
| Chân 165 | I/O — User I/O (bank 4) |
| Chân 166 | I/O — User I/O (bank 4) |
| Chân 167 | I/O — User I/O (bank 4) |
| Chân 168 | I/O — User I/O (bank 4) |
| Chân 169 | I/O — User I/O (bank 4) |
| Chân 170 | I/O — User I/O (bank 4) |
| Chân 171 | I/O — User I/O (bank 4) |
| Chân 172 | VCCINT — Internal core logic supply (3.3 V) |
| Chân 173 | nCONFIG — Configuration control (drive low to reconfigure) |
| Chân 174 | nSTATUS — Configuration status (open-drain) |
| Chân 175 | CONF_DONE — Configuration complete (open-drain) |
| Chân 176 | DCLK — Configuration clock input |
| Chân 177 | DATA0 — Configuration data input (serial/parallel LSB) |
| Chân 178 | MSEL0 — Configuration mode select 0 |
| Chân 179 | MSEL1 — Configuration mode select 1 |
| Chân 180 | MSEL2 — Configuration mode select 2 |
| Chân 181 | TCK — JTAG test clock (IEEE 1149.1) |
| Chân 182 | TMS — JTAG test mode select |
| Chân 183 | TDI — JTAG test data in |
| Chân 184 | TDO — JTAG test data out |
| Chân 185 | TRST — JTAG test reset |
| Chân 186 | CLK0 — Dedicated clock input 0 |
| Chân 187 | CLK1 — Dedicated clock input 1 |
| Chân 188 | CLK2 — Dedicated clock input 2 |
| Chân 189 | CLK3 — Dedicated clock input 3 |
| Chân 190 | GND — Ground |
| Chân 191 | VCCINT — Internal core logic supply (3.3 V) |
| Chân 192 | I/O — User I/O (bank 1) |
| Chân 193 | I/O — User I/O (bank 1) |
| Chân 194 | I/O — User I/O (bank 1) |
| Chân 195 | I/O — User I/O (bank 1) |
| Chân 196 | VCCIO — I/O supply voltage (3.3 V) |
| Chân 197 | I/O — User I/O (bank 1) |
| Chân 198 | I/O — User I/O (bank 1) |
| Chân 199 | I/O — User I/O (bank 1) |
| Chân 200 | I/O — User I/O (bank 1) |
| Chân 201 | I/O — User I/O (bank 1) |
| Chân 202 | I/O — User I/O (bank 1) |
| Chân 203 | GND — Ground |
| Chân 204 | I/O — User I/O (bank 1) |
| Chân 205 | I/O — User I/O (bank 1) |
| Chân 206 | I/O — User I/O (bank 1) |
| Chân 207 | I/O — User I/O (bank 1) |
| Chân 208 | I/O — User I/O (bank 1) |
Ứng dụng tiêu biểu
EPF6024AQC208-2 phù hợp cho 6 Áp dụngs: Industrial Glue Logic and Bus Bridging, Telecommunications Line-Card Glue Logic, ASIC Prototyping and Pre-Silicon Validation, Legacy System Maintenance and Field Upgrades, Custom Compute Accelerator (Low-Volume), Test and Measurement Front-End Logic.
Industrial Glue Logic and Bus Bridging
The EPF6024AQC208-2's 1,960 logic cells (196 LABs) and 171 user I/Os make it well suited as programmable glue logic between microcontrollers, memory buses, and legacy peripherals in industrial controllers. With 166.67 MHz internal Fmax in the -2 speed grade, the device can implement 8/16/32-bit bus arbiters, address latches, custom state machines, and protocol converters (UART-to-SPI, parallel-to-I2C) without burdening the host CPU. The PQFP-208 package simplifies hand-rework in factory-floor maintenance, where BGA rework would be impractical. Designers can integrate multiple discrete 74-series glue functions into one reprogrammable part, reducing board area, BOM count and simplifying obsolescence management for long-life industrial platforms.
Được đề xuất
Telecommunications Line-Card Glue Logic
In telecom line cards the EPF6024AQC208-2 is commonly deployed to implement per-channel framing, HDLC controllers, time-slot interchangers and T1/E1 backplane glue logic. Its 3.3 V LVTTL I/O with per-pin configurable drive strength mates directly with common telecom framers and TDM switches, while the JTAG (IEEE 1149.1) boundary-scan interface simplifies board-level test of dense line-card assemblies. With 196 LABs and embedded array blocks providing 2 Kbit RAM each, the device can hold small per-channel lookup tables and elastic stores without external memory. Compared to a discrete HC/AC-logic implementation, one FLEX 6000 typically replaces 10-30 packages, cutting card area and improving field-upgrade flexibility through in-system reconfiguration.
Được đề xuất
ASIC Prototyping and Pre-Silicon Validation
Designers frequently use the EPF6024AQC208-2 as an FPGA prototype vehicle for gate-array or standard-cell ASICs in the 20K-30K-gate range before committing to mask costs. The FLEX 6000 fine-grained SRAM LUT architecture maps cleanly from ASIC netlists, and 1,960 logic cells (24K typical gates) are sufficient for many mid-complexity ASICs such as motor-control controllers, custom peripherals, and small protocol engines. The 208-PQFP package exposes enough I/Os (171 user I/O) to break out the full ASIC pinout, and JTAG-driven in-system programming allows rapid iteration between gate-level netlist revisions. Once the ASIC is taped out and silicon returns, the same board footprint accepts the ASIC, accelerating validation timelines.
Được đề xuất
Legacy System Maintenance and Field Upgrades
Many deployed telecom, industrial and military systems were designed around Altera FLEX 6000 FPGAs in the late 1990s and early 2000s, and the EPF6024AQC208-2 remains a drop-in spares part for sustaining those systems well past their original production end-of-life. Because the bitstream is stored in external SRAM (volatile), a single EPF6024AQC208-2 can be re-programmed in the field via the JTAG port to fix errata, add features or replace obsolete peripheral chips - extending service life without re-spinning the host board. Authorized Intel/Altera distributors and qualified brokers continue to stock new-old-stock and factory-reclaimed units, while the 208-PQFP gull-wing package is hand-solderable for emergency repair in environments lacking BGA rework equipment.
Được đề xuất
Custom Compute Accelerator (Low-Volume)
For low-volume custom compute, DSP, or packet-processing functions, the EPF6024AQC208-2 offers a programmable alternative to expensive ASICs when only hundreds or thousands of units are needed. With 166.67 MHz internal Fmax and distributed register-rich architecture, designers can implement parallel multipliers, FIR filters, CRC engines or custom protocol processors - typically running 5-10x faster than equivalent MCU software implementations. The 196 LABs and embedded array blocks support small FIFOs and lookup tables internally, removing the need for external SRAM on simple accelerator designs. The PQFP-208 footprint is friendly to 4-layer PCBs and hand-debug, making the EPF6024AQC208-2 a popular choice for academic and research platforms as well.
Được đề xuất
Test and Measurement Front-End Logic
The EPF6024AQC208-2 is well-matched to test-and-measurement front-ends that need custom timing generators, sequencer state machines, and pattern-matching logic alongside commercial microcontrollers. Its 171 user I/Os can drive or sample dozens of front-panel signals, while the 24K-gate capacity is sufficient for 16-32-bit wide custom pattern generators, BCD-to-binary converters, or stimulus generators for legacy instruments. The 3.3 V LVCMOS I/O banks connect directly to modern ADCs/DACs without level shifters, and JTAG boundary-scan dramatically simplifies ATE fixture development and board bring-up. Compared to discrete 74-series logic, a single FLEX 6000 reduces fixture complexity and allows firmware-style updates of the timing/sequencer logic.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPF6024AQC208-2 — 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 | EPF6024AQC208-2N | EPF6024AQC208-3N | EPF6024AQC208-3 | EPF6024AQC208-1 | EPF6024AQC208-1N |
|---|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | PQFP-208 (208-BFQFP) | PQFP-208 (same) | PQFP-208 (same) | PQFP-208 (same) | PQFP-208 (same) | PQFP-208 (same) |
| Logic Cells / Typical Gates | 1960 / 24K | 1960 / 24K (identical) | 1960 / 24K (identical) | 1960 / 24K (identical) | 1960 / 24K (identical) | 1960 / 24K (identical) |
| Speed Grade | -2 | -2 (identical) | -3 (faster) | -3 (faster) | -1 (slower) | -1 (slower) |
| Maximum Internal Frequency | 166.67 MHz | 166.67 MHz (identical) | ~200 MHz (+20%) | ~200 MHz (+20%) | ~142.86 MHz (-14%) | ~142.86 MHz (-14%) |
| Supply Voltage | 3.3 V | 3.3 V (identical) | 3.3 V (identical) | 3.3 V (identical) | 3.3 V (identical) | 3.3 V (identical) |
| User I/Os | 171 | 171 (identical) | 171 (identical) | 171 (identical) | 171 (identical) | 171 (identical) |
| Process Technology | 0.42 µm CMOS | 0.42 µm CMOS (identical) | 0.42 µm CMOS (identical) | 0.42 µm CMOS (identical) | 0.42 µm CMOS (identical) | 0.42 µm CMOS (identical) |
| Configuration Method | JTAG + serial/parallel EPROM | JTAG + serial/parallel EPROM (identical) | JTAG + serial/parallel EPROM (identical) | JTAG + serial/parallel EPROM (identical) | JTAG + serial/parallel EPROM (identical) | JTAG + serial/parallel EPROM (identical) |
Bảo phân biệt quan trọng
- Lead-free Pb-free terminal finish option in identical footprint (vsEPF6024AQC208-2N)
- Higher -3 speed grade available in the same footprint for timing closure (vsEPF6024AQC208-3N)
- Lower-cost -1 speed grade available in identical package (vsEPF6024AQC208-1)
Ghi chú thiết kế
Estimated: At 166.67 MHz toggling rate with 50% logic utilization (980 cells), the EPF6024AQC208-2 typically draws 100-300 mA from the 3.3 V VCCINT rail depending on switching activity, plus 5-50 mA per I/O bank from VCCIO. Provide at least four 0.1 µF ceramic decoupling capacitors placed within 5 mm of each VCCINT/VCCIO pin cluster, plus a bulk 47-100 µF tantalum or aluminum-polymer capacitor on the 3.3 V rail. Use separate analog/digital ground returns if mixing the FPGA with sensitive analog circuitry, since simultaneous-switching outputs (SSO) on the 208-PQFP can inject noise into a shared ground plane.
Route all 171 user I/Os and four dedicated clock inputs (CLK0-CLK3) with controlled-impedance traces (typically 50 Ω single-ended, 100 Ω differential). Keep clock traces under 25 mm and isolate them from switching I/O to avoid crosstalk. Place the JTAG chain (TCK/TMS/TDI/TDO/TRST) on the board edge with a 4.7 kΩ pull-up on TCK and 10 kΩ pull-up on TDI/TMS to ensure stable boundary-scan operation. The 208-PQFP has gull-wing leads on a 0.5 mm pitch - use 0.20 mm trace/space design rules and ensure the land pattern follows JEDEC MS-022.
Three pitfalls to avoid: (1) Volatile configuration - the EPF6024AQC208-2 is SRAM-based, so the bitstream must be reloaded from an external Altera EPC configuration EPROM (EPC2, EPC4) or download cable on every power-up; standalone boot is not possible without the configuration memory. (2) 3.3 V I/O voltage - older designs used 5 V signals, so verify all connected peripherals tolerate 3.3 V LVCMOS levels or insert bus switches/level shifters. (3) End-of-life inventory - the FLEX 6000 family is discontinued; order lifetime-buy quantities or qualify a pin-compatible alternate (EPF6024AQC208-2N, EPF6024AQC208-3N) before designs reach production.
Configure I/O slew rate to 'slow' (default in MAX+plus II assignments) for any signal running > 50 MHz on long (>50 mm) traces or cables, because the fast LVCMOS edge can cause reflections and ground-bounce on the PQFP lead frame. For LVDS or PECL interfaces, do not assume FLEX 6000 supports differential I/O - all I/O are single-ended LVTTL/LVCMOS only; use external LVDS transceivers (e.g., DS90LV031) for differential signaling. Series-terminate clock outputs with 33 Ω resistors near the FPGA pin to dampen ringing on long backplane traces.
Thông tin tuân thủ
RoHS and lead-free status not present in the verified web data; the '-2N' suffix variants are widely marketed as Pb-free per Altera ordering guides but the exact compliance certificate (RoHS, REACH, halogen-free) is not present in the provided data. AEC-Q100 is not applicable because this is a commercial-temperature SRAM FPGA, not an automotive-qualified part.
