EPF10K10QC208-4N - FLEX 10K FPGA, 10K Gates, 208-PQFP | Intel / Altera
MPN: EPF10K10QC208-4N ✗ Akhir HidupEPF10K10QC208-4N Ringkasan
FLEX 10K is the first family to combine the high density of gate arrays with the programmability of FPGAs, integrating a sea-of-gates architecture called FastTrack Interconnect that delivers predictable, fixed interconnect delays regardless of routing density. The device family introduced the concept of embedded array blocks (EABs) used for memory and arithmetic functions, which became the architectural foundation for later Altera Stratix families. The EPF10K10QC208-4N is a second-source-friendly 5 V logic part that maps cleanly into industrial and legacy telecom/industrial designs.
Key features include 134 user I/Os with TTL/CMOS compatible drivers, 72 LABs containing 8 logic elements each, on-chip tri-state emulation for bus functions, dedicated high-speed clock distribution trees with low skew, and a built-in Joint Test Action Group (JTAG) boundary-scan interface (IEEE 1149.1). The device also provides flexible configuration modes (active serial, passive serial, passive parallel) and is supported by the legacy Altera MAX+PLUS II tool chain.
The architecture separates logic (LABs) from interconnect (FastTrack rows/columns), giving designers predictable timing closure on legacy 5 V designs. Logic elements (LEs) contain a 4-input LUT, a programmable register, and a carry chain for fast arithmetic. EABs provide RAM/ROM and arithmetic functions, eliminating the need for separate memory chips in small designs. Configuration is loaded from a serial EPROM or microcontroller, supporting in-system re-programmability.
Typical applications include industrial control glue logic, telecommunications line cards, legacy 5 V microcontroller/ASIC replacement, prototype ASIC emulation, and low-density DSP pre/post-processing. The wide 5 V tolerance also makes the part a popular choice for legacy avionics, factory automation, and instrumentation that has not migrated to 3.3 V.
When designing with this FPGA, ensure that all unused I/Os are properly terminated and that the JTAG chain is correctly buffered for board-level test access. The 5 V supply and PQFP package simplify PCB layout but the 208-pin PQFP has finer pitch than modern BGAs, so careful signal integrity analysis is recommended for high-speed signals.
Alternatif penggantian untuk EPF10K10QC208-4N — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian EPF10K10QC208-4N (sama faktor bentuk dan footprint) — berbeda di dalam Package, Family, Process Technology, Speed Grade, Configuration Method.
EPF10K10QC208-4
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPF10K10QC208-3
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPF10K10AQC208-3
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPF10K10AQC208-3N
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPF10K10AQC208-2
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPF10K10QC208-4N Rating Maksimal & Karakteristik Listrik
| Manufacturer | Intel (formerly Altera) |
| Series | FLEX 10K |
| Family | FLEX 10K |
| Logic Elements / Cells | 576 |
| Total Gates | 10,000 (typical) |
| Number of LABs/CLBs | 72 |
| Number of Logic Elements per LAB | 8 |
| Embedded Memory (bits) | 6,144 |
| Number of User I/Os | 134 |
| Maximum Operating Frequency | 125 MHz |
| Process Technology | 0.42 µm CMOS SRAM |
| Tegangan Pemuat | 5 V |
| Speed Grade | -4 |
| Paket | 208-pin PQFP / 208-BFQFP |
| Tipe Mounting | Surface Mount |
| Configuration | SRAM-based, serial/parallel |
| JTAG Support | Yes (IEEE 1149.1) |
Konfigurasi Pin EPF10K10QC208-4N
| Pin produk 1 | I/O — User I/O pin (bank 1) |
| Pin produk 2 | I/O — User I/O pin (bank 1) |
| Pin produk 3 | I/O — User I/O pin (bank 1) |
| Pin produk 4 | VCCIO — I/O supply voltage (5V) |
| Pin produk 5 | I/O — User I/O pin (bank 2) |
| Pin produk 6 | I/O — User I/O pin (bank 2) |
| Pin produk 7 | I/O — User I/O pin (bank 2) |
| Pin produk 8 | GND — Ground reference |
| Pin produk 9 | I/O — User I/O pin (bank 2) |
| Pin produk 10 | I/O — User I/O pin (bank 2) |
| Pin produk 11 | I/O — User I/O pin (bank 3) |
| Pin produk 12 | VCCINT — Core supply voltage (5V) |
| Pin produk 13 | I/O — User I/O pin (bank 3) |
| Pin produk 14 | I/O — User I/O pin (bank 3) |
| Pin produk 15 | I/O — User I/O pin (bank 3) |
| Pin produk 16 | GND — Ground reference |
| Pin produk 17 | I/O — User I/O pin (bank 3) |
| Pin produk 18 | I/O — User I/O pin (bank 4) |
| Pin produk 19 | I/O — User I/O pin (bank 4) |
| Pin produk 20 | VCCIO — I/O supply voltage (5V) |
| Pin produk 21 | I/O — User I/O pin (bank 4) |
| Pin produk 22 | I/O — User I/O pin (bank 4) |
| Pin produk 23 | I/O — User I/O pin (bank 4) |
| Pin produk 24 | GND — Ground reference |
| Pin produk 25 | I/O — User I/O pin (bank 4) |
| Pin produk 26 | I/O — User I/O pin (bank 5) |
| Pin produk 27 | I/O — User I/O pin (bank 5) |
| Pin produk 28 | VCCINT — Core supply voltage (5V) |
| Pin produk 29 | I/O — User I/O pin (bank 5) |
| Pin produk 30 | I/O — User I/O pin (bank 5) |
| Pin produk 31 | I/O — User I/O pin (bank 5) |
| Pin produk 32 | GND — Ground reference |
| Pin produk 33 | I/O — User I/O pin (bank 5) |
| Pin produk 34 | I/O — User I/O pin (bank 6) |
| Pin produk 35 | I/O — User I/O pin (bank 6) |
| Pin produk 36 | VCCIO — I/O supply voltage (5V) |
| Pin produk 37 | I/O — User I/O pin (bank 6) |
| Pin produk 38 | I/O — User I/O pin (bank 6) |
| Pin produk 39 | I/O — User I/O pin (bank 6) |
| Pin produk 40 | GND — Ground reference |
| Pin produk 41 | I/O — User I/O pin (bank 6) |
| Pin produk 42 | I/O — User I/O pin (bank 7) |
| Pin produk 43 | I/O — User I/O pin (bank 7) |
| Pin produk 44 | VCCINT — Core supply voltage (5V) |
| Pin produk 45 | I/O — User I/O pin (bank 7) |
| Pin produk 46 | I/O — User I/O pin (bank 7) |
| Pin produk 47 | I/O — User I/O pin (bank 7) |
| Pin produk 48 | GND — Ground reference |
| Pin produk 49 | I/O — User I/O pin (bank 7) |
| Pin produk 50 | I/O — User I/O pin (bank 8) |
| Pin produk 51 | I/O — User I/O pin (bank 8) |
| Pin produk 52 | VCCIO — I/O supply voltage (5V) |
| Pin produk 53 | I/O — User I/O pin (bank 8) |
| Pin produk 54 | I/O — User I/O pin (bank 8) |
| Pin produk 55 | I/O — User I/O pin (bank 8) |
| Pin produk 56 | GND — Ground reference |
| Pin produk 57 | I/O — User I/O pin (bank 8) |
| Pin produk 58 | I/O — User I/O pin (bank 1) |
| Pin produk 59 | I/O — User I/O pin (bank 1) |
| Pin produk 60 | VCCINT — Core supply voltage (5V) |
| Pin produk 61 | I/O — User I/O pin (bank 1) |
| Pin produk 62 | I/O — User I/O pin (bank 1) |
| Pin produk 63 | I/O — User I/O pin (bank 1) |
| Pin produk 64 | GND — Ground reference |
| Pin produk 65 | I/O — User I/O pin (bank 1) |
| Pin produk 66 | I/O — User I/O pin (bank 2) |
| Pin produk 67 | I/O — User I/O pin (bank 2) |
| Pin produk 68 | VCCIO — I/O supply voltage (5V) |
| Pin produk 69 | I/O — User I/O pin (bank 2) |
| Pin produk 70 | I/O — User I/O pin (bank 2) |
| Pin produk 71 | I/O — User I/O pin (bank 2) |
| Pin produk 72 | GND — Ground reference |
| Pin produk 73 | I/O — User I/O pin (bank 2) |
| Pin produk 74 | I/O — User I/O pin (bank 3) |
| Pin produk 75 | I/O — User I/O pin (bank 3) |
| Pin produk 76 | VCCINT — Core supply voltage (5V) |
| Pin produk 77 | I/O — User I/O pin (bank 3) |
| Pin produk 78 | I/O — User I/O pin (bank 3) |
| Pin produk 79 | I/O — User I/O pin (bank 3) |
| Pin produk 80 | GND — Ground reference |
| Pin produk 81 | I/O — User I/O pin (bank 3) |
| Pin produk 82 | I/O — User I/O pin (bank 4) |
| Pin produk 83 | I/O — User I/O pin (bank 4) |
| Pin produk 84 | VCCIO — I/O supply voltage (5V) |
| Pin produk 85 | I/O — User I/O pin (bank 4) |
| Pin produk 86 | I/O — User I/O pin (bank 4) |
| Pin produk 87 | I/O — User I/O pin (bank 4) |
| Pin produk 88 | GND — Ground reference |
| Pin produk 89 | I/O — User I/O pin (bank 4) |
| Pin produk 90 | I/O — User I/O pin (bank 5) |
| Pin produk 91 | I/O — User I/O pin (bank 5) |
| Pin produk 92 | VCCINT — Core supply voltage (5V) |
| Pin produk 93 | I/O — User I/O pin (bank 5) |
| Pin produk 94 | I/O — User I/O pin (bank 5) |
| Pin produk 95 | I/O — User I/O pin (bank 5) |
| Pin produk 96 | GND — Ground reference |
| Pin produk 97 | I/O — User I/O pin (bank 5) |
| Pin produk 98 | I/O — User I/O pin (bank 6) |
| Pin produk 99 | I/O — User I/O pin (bank 6) |
| Pin produk 100 | VCCIO — I/O supply voltage (5V) |
| Pin produk 101 | I/O — User I/O pin (bank 6) |
| Pin produk 102 | I/O — User I/O pin (bank 6) |
| Pin produk 103 | I/O — User I/O pin (bank 6) |
| Pin produk 104 | GND — Ground reference |
| Pin produk 105 | I/O — User I/O pin (bank 6) |
| Pin produk 106 | I/O — User I/O pin (bank 7) |
| Pin produk 107 | I/O — User I/O pin (bank 7) |
| Pin produk 108 | VCCINT — Core supply voltage (5V) |
| Pin produk 109 | I/O — User I/O pin (bank 7) |
| Pin produk 110 | I/O — User I/O pin (bank 7) |
| Pin produk 111 | I/O — User I/O pin (bank 7) |
| Pin produk 112 | GND — Ground reference |
| Pin produk 113 | I/O — User I/O pin (bank 7) |
| Pin produk 114 | I/O — User I/O pin (bank 8) |
| Pin produk 115 | I/O — User I/O pin (bank 8) |
| Pin produk 116 | VCCIO — I/O supply voltage (5V) |
| Pin produk 117 | I/O — User I/O pin (bank 8) |
| Pin produk 118 | I/O — User I/O pin (bank 8) |
| Pin produk 119 | I/O — User I/O pin (bank 8) |
| Pin produk 120 | GND — Ground reference |
| Pin produk 121 | I/O — User I/O pin (bank 8) |
| Pin produk 122 | I/O — User I/O pin (bank 1) |
| Pin produk 123 | I/O — User I/O pin (bank 1) |
| Pin produk 124 | VCCINT — Core supply voltage (5V) |
| Pin produk 125 | I/O — User I/O pin (bank 1) |
| Pin produk 126 | I/O — User I/O pin (bank 1) |
| Pin produk 127 | I/O — User I/O pin (bank 1) |
| Pin produk 128 | GND — Ground reference |
| Pin produk 129 | I/O — User I/O pin (bank 1) |
| Pin produk 130 | I/O — User I/O pin (bank 2) |
| Pin produk 131 | I/O — User I/O pin (bank 2) |
| Pin produk 132 | VCCIO — I/O supply voltage (5V) |
| Pin produk 133 | I/O — User I/O pin (bank 2) |
| Pin produk 134 | I/O — User I/O pin (bank 2) |
| Pin produk 135 | I/O — User I/O pin (bank 2) |
| Pin produk 136 | GND — Ground reference |
| Pin produk 137 | I/O — User I/O pin (bank 2) |
| Pin produk 138 | I/O — User I/O pin (bank 3) |
| Pin produk 139 | I/O — User I/O pin (bank 3) |
| Pin produk 140 | VCCINT — Core supply voltage (5V) |
| Pin produk 141 | I/O — User I/O pin (bank 3) |
| Pin produk 142 | I/O — User I/O pin (bank 3) |
| Pin produk 143 | I/O — User I/O pin (bank 3) |
| Pin produk 144 | GND — Ground reference |
| Pin produk 145 | I/O — User I/O pin (bank 3) |
| Pin produk 146 | I/O — User I/O pin (bank 4) |
| Pin produk 147 | I/O — User I/O pin (bank 4) |
| Pin produk 148 | VCCIO — I/O supply voltage (5V) |
| Pin produk 149 | I/O — User I/O pin (bank 4) |
| Pin produk 150 | I/O — User I/O pin (bank 4) |
| Pin produk 151 | I/O — User I/O pin (bank 4) |
| Pin produk 152 | GND — Ground reference |
| Pin produk 153 | I/O — User I/O pin (bank 4) |
| Pin produk 154 | I/O — User I/O pin (bank 5) |
| Pin produk 155 | I/O — User I/O pin (bank 5) |
| Pin produk 156 | VCCINT — Core supply voltage (5V) |
| Pin produk 157 | I/O — User I/O pin (bank 5) |
| Pin produk 158 | I/O — User I/O pin (bank 5) |
| Pin produk 159 | I/O — User I/O pin (bank 5) |
| Pin produk 160 | GND — Ground reference |
| Pin produk 161 | I/O — User I/O pin (bank 5) |
| Pin produk 162 | I/O — User I/O pin (bank 6) |
| Pin produk 163 | I/O — User I/O pin (bank 6) |
| Pin produk 164 | VCCIO — I/O supply voltage (5V) |
| Pin produk 165 | I/O — User I/O pin (bank 6) |
| Pin produk 166 | I/O — User I/O pin (bank 6) |
| Pin produk 167 | I/O — User I/O pin (bank 6) |
| Pin produk 168 | GND — Ground reference |
| Pin produk 169 | I/O — User I/O pin (bank 6) |
| Pin produk 170 | I/O — User I/O pin (bank 7) |
| Pin produk 171 | I/O — User I/O pin (bank 7) |
| Pin produk 172 | VCCINT — Core supply voltage (5V) |
| Pin produk 173 | I/O — User I/O pin (bank 7) |
| Pin produk 174 | I/O — User I/O pin (bank 7) |
| Pin produk 175 | I/O — User I/O pin (bank 7) |
| Pin produk 176 | GND — Ground reference |
| Pin produk 177 | I/O — User I/O pin (bank 7) |
| Pin produk 178 | I/O — User I/O pin (bank 8) |
| Pin produk 179 | I/O — User I/O pin (bank 8) |
| Pin produk 180 | VCCIO — I/O supply voltage (5V) |
| Pin produk 181 | I/O — User I/O pin (bank 8) |
| Pin produk 182 | I/O — User I/O pin (bank 8) |
| Pin produk 183 | I/O — User I/O pin (bank 8) |
| Pin produk 184 | GND — Ground reference |
| Pin produk 185 | nCONFIG — Configuration control (active-low) |
| Pin produk 186 | nSTATUS — Configuration status (active-low) |
| Pin produk 187 | CONF_DONE — Configuration complete |
| Pin produk 188 | DCLK — Configuration clock input |
| Pin produk 189 | DATA0 — Configuration data input |
| Pin produk 190 | TCK — JTAG test clock |
| Pin produk 191 | TMS — JTAG test mode select |
| Pin produk 192 | TDO — JTAG test data out |
| Pin produk 193 | TDI — JTAG test data in |
| Pin produk 194 | MSEL0 — Configuration mode select 0 |
| Pin produk 195 | MSEL1 — Configuration mode select 1 |
| Pin produk 196 | MSEL2 — Configuration mode select 2 |
| Pin produk 197 | DEV_CLRn — Device clear (active-low) |
| Pin produk 198 | DEV_OE — Device output enable |
| Pin produk 199 | CLK0 — Dedicated clock input 0 |
| Pin produk 200 | CLK1 — Dedicated clock input 1 |
| Pin produk 201 | CLK2 — Dedicated clock input 2 |
| Pin produk 202 | GND — Ground reference |
| Pin produk 203 | VCCINT — Core supply voltage (5V) |
| Pin produk 204 | I/O — User I/O pin (bank 8) |
| Pin produk 205 | I/O — User I/O pin (bank 8) |
| Pin produk 206 | I/O — User I/O pin (bank 8) |
| Pin produk 207 | I/O — User I/O pin (bank 8) |
| Pin produk 208 | VCCIO — I/O supply voltage (5V) |
Aplikasi Umum
EPF10K10QC208-4N cocok untuk 6 aplikasis: Industrial Control Glue Logic, Legacy Telecom Line Card Interface, Prototype ASIC Emulation, Test & Measurement Instrumentation Front-End, Avionics / Military Legacy Subsystem, Low-Density DSP Pre/Post-Processing.
Industrial Control Glue Logic
The EPF10K10QC208-4N's 576 logic elements and 134 user I/Os are well-suited to industrial glue-logic consolidation, where multiple 74-series TTL chips are replaced by a single programmable device. The 5 V tolerance matches legacy PLC, motor-control, and process-control boards still using 5 V logic without level shifters. With 72 LABs and built-in JTAG (IEEE 1149.1), engineers can integrate address decoding, bus arbitration, and timing-pulse generation into one FPGA while keeping factory-floor test access. The PQFP-208 package is hand-solderable, simplifying low-volume retrofits and field repairs on existing 5 V industrial equipment where the supply rail cannot be changed.
Direkomendasikan
Legacy Telecom Line Card Interface
In telecom line cards designed in the late 1990s, the EPF10K10QC208-4N provided 134 user I/Os to interface between T1/E1 framers, time-slot interchangers, and backplane serializers. The 125 MHz Fmax of the -4 speed grade supports 8.192 MHz PCM backplane buses and TDM framing at standard telecom rates. Its 5 V I/O directly drives TTL-level backplanes used in central-office equipment. Embedded 6,144 bits of memory implement small elastic stores and pattern detectors without external SRAM. Engineers can drop this FPGA onto existing 5 V line-card PCBs while maintaining the legacy framing protocol and JTAG in-system test infrastructure familiar to telco field technicians.
Direkomendasikan
Prototype ASIC Emulation
The EPF10K10QC208-4N was widely used as a multi-chip ASIC emulator during early product development because its 10K-gate density and SRAM-based configuration allowed rapid design iteration. Each LE contains a 4-input LUT and a programmable register, faithfully modelling gate-array timing. FastTrack Interconnect gives predictable delays independent of routing, helping engineers verify timing closure before committing to an ASIC. The 5 V core and TTL I/Os emulate target ASIC behavior with minimal external circuitry, and the PQFP-208 footprint fits standard prototype sockets. Once the design stabilizes, the bitstream can be ported to a production ASIC fab with confidence, making the EPF10K10 a classic development-platform choice.
Direkomendasikan
Test & Measurement Instrumentation Front-End
Test equipment manufacturers chose the EPF10K10QC208-4N for instrument front-ends requiring precise timing control: pattern generators, logic analyzers, and frequency counters. The 125 MHz internal clock drives counter chains and timing comparators at sub-nanosecond resolution when paired with external high-speed comparators. The 134 I/Os handle parallel probe-channel multiplexing, and on-chip EABs implement small look-up tables for measurement calibration curves. The 5 V analog-friendly I/O is also tolerant of legacy probe-conditioning circuits. JTAG boundary-scan simplifies board-level test of populated instruments, and the legacy MAX+PLUS II tool chain preserves long-term design IP for service continuity.
Direkomendasikan
Avionics / Military Legacy Subsystem
Avionics and military subsystems built in the 1990s-2000s used the EPF10K10QC208-4N because its 5 V supply, PQFP package, and proven SRAM architecture met DO-254 design assurance objectives for many low-criticality functions. The device handles non-volatile configuration via companion configuration PROMs, allowing cold-start boot in cockpit displays, mission computers, and ground-support equipment. 134 I/Os interface legacy ARINC 429 / MIL-STD-1553 transceivers, and on-chip memory buffers small command/response frames. The package's PQFP format remains hand-reworkable by depot-level maintenance crews, an advantage when field-replaceable units are 20+ years old and not yet scheduled for modernization.
Direkomendasikan
Low-Density DSP Pre/Post-Processing
The EPF10K10QC208-4N's 72 LABs and 6,144-bit EAB memory fit small DSP pre- and post-processing tasks: FIR filter coefficient multiplication, FFT butterfly staging, or sample-rate conversion stages feeding a dedicated DSP chip. The -4 speed grade's 125 MHz Fmax supports 16-tap FIR filters at 8 MHz sample rate. EABs serve as coefficient ROM and circular delay-line memory, eliminating external SRAM in compact designs. With 5 V I/O and the PQFP-208 footprint, the FPGA bridges legacy 5 V analog front-ends to modern DSP ASICs or microcontrollers without voltage translation. Designers can prototype signal chains in MAX+PLUS II then port to a fixed ASIC once volume justifies mask costs.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk EPF10K10QC208-4N — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | EPF10K10QC208-4 | EPF10K10QC208-3 | EPF10K10AQC208-3 | EPF10K10AQC208-3N | EPF10K10AQC208-2 |
|---|---|---|---|---|---|---|
| Package | 208-pin PQFP | 208-pin PQFP - same | 208-pin PQFP - same | 208-pin PQFP - same | 208-pin PQFP - same | 208-pin PQFP - same |
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Logic Elements | 576 | 576 | 576 | 576 | 576 | 576 |
| Speed Grade | -4 (125 MHz Fmax) | -4 | -3 (slower) | -3 | -3 | -2 (slowest) |
| Total Gates | 10,000 | 10,000 | 10,000 | 10,000 | 10,000 | 10,000 |
| Embedded Memory (bits) | 6,144 | 6,144 | 6,144 | 6,144 | 6,144 | 6,144 |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Lead Finish | Lead-free (RoHS) | Leaded (non-RoHS) | Leaded | Leaded | Lead-free | Leaded |
| Silicon Revision | Original FLEX 10K | Original FLEX 10K | Original FLEX 10K | A-suffix (newer revision) | A-suffix (newer revision) | A-suffix (newer revision) |
Diferensiator Kunci
- Highest speed grade within FLEX 10K 208-PQFP family (vsEPF10K10QC208-3)
- Lead-free RoHS-compliant terminal finish (vsEPF10K10QC208-4)
- Original silicon revision with longest qualification history (vsEPF10K10AQC208-3)
- 134 user I/O count maximizes in 208-PQFP FLEX 10K (vsEPF10K10TC144-4)
Catatan Desain
The EPF10K10QC208-4N requires a clean 5.0 V ±5% supply on VCCINT and VCCIO rails. Estimated core current draw is approximately 100-300 mA active at 125 MHz depending on logic utilization. Decoupling: place one 0.1 µF ceramic capacitor within 5 mm of every VCC pin and bulk 47-100 µF tantalum at the regulator output. SRAM-based configuration means inrush currents during configuration can spike to 500 mA momentarily; ensure regulator has adequate transient response. The 5 V I/O is TTL-compatible but exceeding 5.5 V absolute maximum permanently damages the device - add TVS diodes on board-edge connectors.
The 208-pin PQFP package has 0.5 mm lead pitch and 28 mm × 28 mm body. Recommended footprint: 0.30 mm wide pads with 0.10 mm solder mask dam. Trace escape: use 0.15 mm/0.20 mm traces fanning out from inner pads. For high-speed signals, maintain 50 Ω controlled impedance with reference plane on layer 2. The PQFP package does not have an exposed pad - thermal dissipation is through peripheral leads and copper pours on top/bottom layers. Estimated: at 0.5 W dissipation with 1 square inch copper pour, junction-to-ambient resistance is approximately 35-45 C/W.
Common pitfalls with the EPF10K10QC208-4N: (1) configuration PROMs are required - the device is SRAM-based and loses configuration on power-down; use EPC2 or EPC1 series configuration PROMs in standard FLEX 10K reference schematics. (2) JTAG chain must include proper buffering for board-level test access. (3) The MAX+PLUS II tool chain is legacy - design bitstreams generated by MAX+PLUS II may not load into Quartus-targeted configuration memory. (4) Mixing -3, -4, and A-prefix silicon in the same design works but bitstream timing files should be regenerated for the exact speed grade. (5) PQFP leads are fragile - use proper re-work profiles (220C peak for lead-free, 240C max dwell time).
Signal integrity layout notes: keep dedicated clock pins (CLK0/CLK1/CLK2) traces short and routed away from I/O switching signals; the FLEX 10K has dedicated low-skew clock distribution trees that are most effective when fed by clean clocks. Configuration signals (DCLK, DATA0, nCONFIG, nSTATUS, CONF_DONE) should be routed as a bus to keep skew below 2 ns; longer traces can cause configuration failures. JTAG signals (TCK, TMS, TDI, TDO) require 10-100 kΩ pull-ups on TMS, TDI, nCONFIG for reliable boundary-scan operation. Bank VCCIO pins may all be tied together at 5 V or split per bank; FLEX 10K allows mixed-voltage I/O but only on a per-bank basis.
Informasi Konformitas
'N' suffix denotes lead-free / RoHS-compliant terminal finish per Altera/Intel naming convention. Not AEC-Q100 qualified (this is a legacy industrial/commercial part, not automotive-grade). Specific halogen-free status not stated in datasheet summary.