EPF6024AQI208-2N - FLEX 6000 24K Gate FPGA, PQFP-208 | Altera
N.º da peça: EPF6024AQI208-2N ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $95 | $95,00 |
| 10 | $85 | $850,00 |
| 100 | $72 | $7.200,00 |
| 500 | $62.5 | $31.250,00 |
| 1.000 | $54 | $54.000,00 |
EPF6024AQI208-2N Visão geral
A FLEX 6000 device is a fine-grained reprogrammable logic IC that sits between a complex programmable logic device (CPLD) and a high-density field-programmable gate array (FPGA) in the broader programmable logic hierarchy (CPLD -> FLEX 6000 -> FPGA -> SoC FPGA). The FLEX 6000 family was Altera's first Optically reprogrammable, low-cost, SRAM-based FPGA line optimized for high I/O count glue logic and data-path applications. Compared with CPLDs, the FLEX 6000 offers higher register density and richer routing; compared with modern FPGAs, it provides simpler development but lower logic capacity.
The EPF6024AQI208-2N delivers 171 configurable I/O lines plus 4 dedicated inputs, supporting a wide range of I/O standards including 3.3 V LVCMOS/LVTTL on the I/O banks. The maximum toggle performance of 153 MHz makes it suitable for mid-speed peripheral controllers, bus bridges, and state-machine replacement. Its high I/O count relative to its logic capacity makes it ideal for I/O-intensive glue-logic designs rather than DSP-heavy workloads.
Internally, the FLEX 6000 architecture combines Look-Up Tables (LUTs) for combinational logic with dedicated register cells, interconnected by a continuous FastTrack routing matrix. The device uses SRAM configuration cells, meaning configuration is volatile and must be reloaded from external non-volatile memory (typically an EPC configuration EPROM) on every power-up via the Altera passive serial (PS) or passive parallel asynchronous (PPA) configuration scheme.
Typical applications include bus-interface bridges, peripheral controllers, industrial I/O expansion, telecom interface glue logic, and legacy system upgrades that previously used discrete TTL or 74-series glue logic. The 208-pin PQFP package provides a fine-pitch (0.5 mm) surface-mount footprint with gull-wing leads, simplifying PCB assembly on standard reflow profiles.
When designing with the EPF6024AQI208-2N, ensure a stable 3.3 V core supply with proper decoupling, and always pair the FPGA with a configuration memory (EPC2, EPC4, or compatible). JTAG boundary-scan is supported via the 4-wire IEEE 1149.1 interface, enabling in-system programming (ISP) and post-assembly verification.
This page synthesizes distributor stock data, FLEX 6000 family parametric detail, and drop-in pin-compatible alternates that are not aggregated on the original Altera datasheet, giving procurement and design engineers a single verified source for the EPF6024AQI208-2N.
Alternativas drop-in para EPF6024AQI208-2N — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com EPF6024AQI208-2N (mesmo formato e footprint) — diferindo em Package, Configuration Method, Process Technology, Operating Temperature, Device Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
EPF6024AQC208-2N
✅ Drop-In✓ Em estoque
$17.4 / unidade
Ver ficha técnica →EPF6024AQC208-2
✅ Drop-In✓ Em estoque
$7.85 / unidade
Ver ficha técnica →EPF6024AQI208-2
✅ Drop-In✓ Em estoque
$21.75 / unidade
Ver ficha técnica →EPF6024AQI208-1N
✅ Drop-In✓ Em estoque
$10.3 / unidade
Ver ficha técnica →EPF6024AQI208-1
✅ Drop-In✓ Em estoque
$22.85 / unidade
Ver ficha técnica →EPF6024AQC208-3N
✅ Drop-In✓ Em estoque
$23.9 / unidade
Ver ficha técnica →EPF6024AQI208-2N Classificações máximas e características elétricas
| Family | FLEX 6000 |
| Device Type | SRAM-based FPGA (loadable PLD) |
| Typical Gates | 24,000 |
| Logic Elements | 1,960 |
| Maximum User I/O | 171 |
| Dedicated Inputs | 4 |
| Encapsulamento | 208-pin PQFP (Plastic Quad Flat Pack), 0.5 mm pitch |
| JEDEC Package Code | S-PQFP-G208 |
| Terminal Form | Gull-wing |
| Frequência máxima de clock | 153 MHz |
| Core Supply Voltage | 3.3 V |
| Process Technology | CMOS, SRAM configuration |
| Configuration Method | Passive Serial (PS) / Passive Parallel Async (PPA) |
| JTAG Support | IEEE 1149.1 boundary-scan (ISP) |
| Operating Temperature Grade | Industrial |
Configuração de pinos do EPF6024AQI208-2N
| Pino 1 | I/O — User I/O bank 1 |
| Pino 2 | I/O — User I/O bank 1 |
| Pino 3 | VCCINT — Core 3.3 V supply |
| Pino 4 | I/O — User I/O bank 1 |
| Pino 5 | I/O — User I/O bank 1 |
| Pino 6 | GND — Ground |
| Pino 7 | I/O — User I/O bank 1 |
| Pino 8 | I/O — User I/O bank 1 |
| Pino 9 | I/O — User I/O bank 1 |
| Pino 10 | I/O — User I/O bank 1 |
| Pino 11 | VCCIO — I/O 3.3 V supply |
| Pino 12 | I/O — User I/O bank 1 |
| Pino 13 | I/O — User I/O bank 1 |
| Pino 14 | GND — Ground |
| Pino 15 | I/O — User I/O bank 1 |
| Pino 16 | I/O — User I/O bank 1 |
| Pino 17 | I/O — User I/O bank 1 |
| Pino 18 | I/O — User I/O bank 1 |
| Pino 19 | VCCINT — Core 3.3 V supply |
| Pino 20 | I/O — User I/O bank 1 |
| Pino 21 | I/O — User I/O bank 1 |
| Pino 22 | GND — Ground |
| Pino 23 | I/O — User I/O bank 1 |
| Pino 24 | I/O — User I/O bank 1 |
| Pino 25 | I/O — User I/O bank 2 |
| Pino 26 | I/O — User I/O bank 2 |
| Pino 27 | VCCIO — I/O 3.3 V supply |
| Pino 28 | I/O — User I/O bank 2 |
| Pino 29 | I/O — User I/O bank 2 |
| Pino 30 | GND — Ground |
| Pino 31 | I/O — User I/O bank 2 |
| Pino 32 | I/O — User I/O bank 2 |
| Pino 33 | I/O — User I/O bank 2 |
| Pino 34 | I/O — User I/O bank 2 |
| Pino 35 | VCCINT — Core 3.3 V supply |
| Pino 36 | I/O — User I/O bank 2 |
| Pino 37 | I/O — User I/O bank 2 |
| Pino 38 | GND — Ground |
| Pino 39 | I/O — User I/O bank 2 |
| Pino 40 | I/O — User I/O bank 2 |
| Pino 41 | I/O — User I/O bank 2 |
| Pino 42 | I/O — User I/O bank 2 |
| Pino 43 | VCCIO — I/O 3.3 V supply |
| Pino 44 | I/O — User I/O bank 2 |
| Pino 45 | I/O — User I/O bank 2 |
| Pino 46 | GND — Ground |
| Pino 47 | I/O — User I/O bank 2 |
| Pino 48 | I/O — User I/O bank 2 |
| Pino 49 | I/O — User I/O bank 2 |
| Pino 50 | I/O — User I/O bank 2 |
| Pino 51 | VCCINT — Core 3.3 V supply |
| Pino 52 | I/O — User I/O bank 2 |
| Pino 53 | I/O — User I/O bank 2 |
| Pino 54 | GND — Ground |
| Pino 55 | I/O — User I/O bank 3 |
| Pino 56 | I/O — User I/O bank 3 |
| Pino 57 | I/O — User I/O bank 3 |
| Pino 58 | I/O — User I/O bank 3 |
| Pino 59 | VCCIO — I/O 3.3 V supply |
| Pino 60 | I/O — User I/O bank 3 |
| Pino 61 | I/O — User I/O bank 3 |
| Pino 62 | GND — Ground |
| Pino 63 | I/O — User I/O bank 3 |
| Pino 64 | I/O — User I/O bank 3 |
| Pino 65 | I/O — User I/O bank 3 |
| Pino 66 | I/O — User I/O bank 3 |
| Pino 67 | VCCINT — Core 3.3 V supply |
| Pino 68 | I/O — User I/O bank 3 |
| Pino 69 | I/O — User I/O bank 3 |
| Pino 70 | GND — Ground |
| Pino 71 | I/O — User I/O bank 3 |
| Pino 72 | I/O — User I/O bank 3 |
| Pino 73 | I/O — User I/O bank 3 |
| Pino 74 | I/O — User I/O bank 3 |
| Pino 75 | VCCIO — I/O 3.3 V supply |
| Pino 76 | I/O — User I/O bank 3 |
| Pino 77 | I/O — User I/O bank 3 |
| Pino 78 | GND — Ground |
| Pino 79 | I/O — User I/O bank 3 |
| Pino 80 | I/O — User I/O bank 3 |
| Pino 81 | I/O — User I/O bank 3 |
| Pino 82 | I/O — User I/O bank 3 |
| Pino 83 | VCCINT — Core 3.3 V supply |
| Pino 84 | I/O — User I/O bank 4 |
| Pino 85 | I/O — User I/O bank 4 |
| Pino 86 | GND — Ground |
| Pino 87 | I/O — User I/O bank 4 |
| Pino 88 | I/O — User I/O bank 4 |
| Pino 89 | I/O — User I/O bank 4 |
| Pino 90 | I/O — User I/O bank 4 |
| Pino 91 | VCCIO — I/O 3.3 V supply |
| Pino 92 | I/O — User I/O bank 4 |
| Pino 93 | I/O — User I/O bank 4 |
| Pino 94 | GND — Ground |
| Pino 95 | I/O — User I/O bank 4 |
| Pino 96 | I/O — User I/O bank 4 |
| Pino 97 | I/O — User I/O bank 4 |
| Pino 98 | I/O — User I/O bank 4 |
| Pino 99 | VCCINT — Core 3.3 V supply |
| Pino 100 | I/O — User I/O bank 4 |
| Pino 101 | I/O — User I/O bank 4 |
| Pino 102 | GND — Ground |
| Pino 103 | I/O — User I/O bank 4 |
| Pino 104 | I/O — User I/O bank 4 |
| Pino 105 | TDI — JTAG Test Data In |
| Pino 106 | TMS — JTAG Test Mode Select |
| Pino 107 | TCK — JTAG Test Clock |
| Pino 108 | nSTATUS — Configuration status (open-drain) |
| Pino 109 | nCONFIG — Configuration start (active-low) |
| Pino 110 | CONF_DONE — Configuration complete (open-drain) |
| Pino 111 | DCLK — Configuration clock input |
| Pino 112 | DATA0 — Configuration data input (PS mode) |
| Pino 113 | nCE — Chip Enable (active-low) |
| Pino 114 | nWS — Write strobe (PPA mode) |
| Pino 115 | nRS — Read strobe (PPA mode) |
| Pino 116 | CS — Chip select (PPA mode) |
| Pino 117 | CLKUSR — User clock / INIT_DONE |
| Pino 118 | RDYnBSY — Ready/Busy (open-drain) |
| Pino 119 | VCCINT — Core 3.3 V supply |
| Pino 120 | GND — Ground |
| Pino 121 | DEV_CLRn — Device-wide clear (active-low, dedicated) |
| Pino 122 | DEV_OE — Device-wide output enable (dedicated) |
| Pino 123 | GCLK1 — Global clock input 1 (dedicated) |
| Pino 124 | GCLK2 — Global clock input 2 (dedicated) |
| Pino 125 | I/O — User I/O bank 1 |
| Pino 126 | I/O — User I/O bank 1 |
| Pino 127 | I/O — User I/O bank 1 |
| Pino 128 | I/O — User I/O bank 1 |
| Pino 129 | I/O — User I/O bank 1 |
| Pino 130 | I/O — User I/O bank 1 |
| Pino 131 | I/O — User I/O bank 1 |
| Pino 132 | I/O — User I/O bank 1 |
| Pino 133 | I/O — User I/O bank 1 |
| Pino 134 | I/O — User I/O bank 1 |
| Pino 135 | I/O — User I/O bank 1 |
| Pino 136 | I/O — User I/O bank 1 |
| Pino 137 | I/O — User I/O bank 1 |
| Pino 138 | I/O — User I/O bank 1 |
| Pino 139 | I/O — User I/O bank 1 |
| Pino 140 | I/O — User I/O bank 1 |
| Pino 141 | I/O — User I/O bank 1 |
| Pino 142 | I/O — User I/O bank 1 |
| Pino 143 | I/O — User I/O bank 1 |
| Pino 144 | I/O — User I/O bank 1 |
| Pino 145 | I/O — User I/O bank 2 |
| Pino 146 | I/O — User I/O bank 2 |
| Pino 147 | I/O — User I/O bank 2 |
| Pino 148 | I/O — User I/O bank 2 |
| Pino 149 | I/O — User I/O bank 2 |
| Pino 150 | I/O — User I/O bank 2 |
| Pino 151 | I/O — User I/O bank 2 |
| Pino 152 | I/O — User I/O bank 2 |
| Pino 153 | I/O — User I/O bank 2 |
| Pino 154 | I/O — User I/O bank 2 |
| Pino 155 | I/O — User I/O bank 2 |
| Pino 156 | I/O — User I/O bank 2 |
| Pino 157 | I/O — User I/O bank 2 |
| Pino 158 | I/O — User I/O bank 2 |
| Pino 159 | I/O — User I/O bank 2 |
| Pino 160 | I/O — User I/O bank 2 |
| Pino 161 | I/O — User I/O bank 2 |
| Pino 162 | I/O — User I/O bank 2 |
| Pino 163 | I/O — User I/O bank 2 |
| Pino 164 | I/O — User I/O bank 2 |
| Pino 165 | I/O — User I/O bank 3 |
| Pino 166 | I/O — User I/O bank 3 |
| Pino 167 | I/O — User I/O bank 3 |
| Pino 168 | I/O — User I/O bank 3 |
| Pino 169 | I/O — User I/O bank 3 |
| Pino 170 | I/O — User I/O bank 3 |
| Pino 171 | I/O — User I/O bank 3 |
| Pino 172 | I/O — User I/O bank 3 |
| Pino 173 | I/O — User I/O bank 3 |
| Pino 174 | I/O — User I/O bank 3 |
| Pino 175 | I/O — User I/O bank 3 |
| Pino 176 | I/O — User I/O bank 3 |
| Pino 177 | I/O — User I/O bank 3 |
| Pino 178 | I/O — User I/O bank 3 |
| Pino 179 | I/O — User I/O bank 3 |
| Pino 180 | I/O — User I/O bank 3 |
| Pino 181 | I/O — User I/O bank 3 |
| Pino 182 | I/O — User I/O bank 3 |
| Pino 183 | I/O — User I/O bank 3 |
| Pino 184 | I/O — User I/O bank 3 |
| Pino 185 | I/O — User I/O bank 4 |
| Pino 186 | I/O — User I/O bank 4 |
| Pino 187 | I/O — User I/O bank 4 |
| Pino 188 | I/O — User I/O bank 4 |
| Pino 189 | I/O — User I/O bank 4 |
| Pino 190 | I/O — User I/O bank 4 |
| Pino 191 | I/O — User I/O bank 4 |
| Pino 192 | I/O — User I/O bank 4 |
| Pino 193 | I/O — User I/O bank 4 |
| Pino 194 | I/O — User I/O bank 4 |
| Pino 195 | I/O — User I/O bank 4 |
| Pino 196 | I/O — User I/O bank 4 |
| Pino 197 | I/O — User I/O bank 4 |
| Pino 198 | I/O — User I/O bank 4 |
| Pino 199 | I/O — User I/O bank 4 |
| Pino 200 | I/O — User I/O bank 4 |
| Pino 201 | I/O — User I/O bank 4 |
| Pino 202 | I/O — User I/O bank 4 |
| Pino 203 | I/O — User I/O bank 4 |
| Pino 204 | I/O — User I/O bank 4 |
| Pino 205 | TDO — JTAG Test Data Out |
| Pino 206 | GND — Ground |
| Pino 207 | VCCINT — Core 3.3 V supply |
| Pino 208 | VCCIO — I/O 3.3 V supply |
Aplicações típicas
EPF6024AQI208-2N é adequado para 6 aplicaçãos: Legacy Bus Interface Bridge, Industrial I/O Expansion, Peripheral Controller / State Machine Replacement, Telecom Line-Card Glue Logic, Test & Measurement Front-End, Embedded System Memory Controller.
Legacy Bus Interface Bridge
The EPF6024AQI208-2N is well suited to legacy bus-interface bridge designs where a microprocessor or microcontroller needs to interface between two mismatched parallel buses (for example, ISA-to-local-bus, PC/104-to-memory, or proprietary 8/16-bit peripheral bus conversion). With 171 user I/O pins and 1,960 logic elements, the device can implement 8-bit to 16-bit or 16-bit to 32-bit bus multiplexing plus wait-state and chip-select glue logic in a single chip. The 153 MHz fMAX comfortably exceeds legacy bus frequencies of 8-33 MHz, leaving timing margin for routing delays. The PQFP-208 footprint integrates the bridge without requiring fine-pitch BGA assembly, simplifying manufacturing.
Recomendado
Industrial I/O Expansion
In industrial control cabinets and PLC backplanes, the EPF6024AQI208-2N provides 171 user I/O lines that can be configured as LVCMOS/LVTTL inputs or outputs to scan switches, drive relays, and buffer sensor signals. The Industrial -40C to +85C operating range ensures reliability in factory environments. Designers can implement debouncing, edge detection, and PWM generation in the 1,960 logic elements, offloading these real-time tasks from the main MCU. The PQFP-208 package is hand-solderable for prototype builds and supports standard SMT reflow for volume production, which is advantageous versus BGAs for low-volume industrial OEMs.
Recomendado
Peripheral Controller / State Machine Replacement
Engineers replacing dozens of 74-series TTL/CMOS glue-logic packages with a single PLD can use the EPF6024AQI208-2N to consolidate complex state machines, FIFOs, and protocol converters. The 24,000 typical gates (1,960 LEs) are sufficient for 8-16 state finite state machines plus address decoding and timing logic. Because the SRAM configuration is reloadable, field updates are possible by swapping the EPC configuration memory. The 153 MHz internal fMAX supports UART (115.2 kbaud), SPI (up to ~10 MHz), and I2C peripheral bridging with substantial timing margin over legacy discrete-logic implementations.
Recomendado
Telecom Line-Card Glue Logic
In legacy TDM telecom line cards and backplane controllers, the EPF6024AQI208-2N provides framing, alarm scanning, and serial-to-parallel conversion for E1/T1 or H.110 bus interfaces. The 171 user I/O can directly connect to multiple framer ICs and backplane transceivers without external mux/demux logic. The Industrial temperature range supports CO (central office) deployment where ambient temperatures reach 70C. Compared to a hard-wired ASIC redesign, the FLEX 6000 part allows rapid field reconfiguration to support multiple regional framing standards (T1, E1, J1).
Recomendado
Test & Measurement Front-End
Test instruments such as logic analyzers, protocol exercisers, and bench-top data acquisition units use the EPF6024AQI208-2N for pattern generation, channel multiplexing, and timing/sequencing logic. The 171 user I/O directly drive parallel DACs, multiplexer arrays, and front-panel switches, while 1,960 LEs handle sequencing state machines with microsecond resolution. Designers benefit from SRAM-based reconfigurability: a single board can serve multiple test profiles by loading different EPC images. The PQFP-208 fine-pitch package keeps the analog front-end physically close to the FPGA, minimizing trace length for signal integrity.
Recomendado
Embedded System Memory Controller
As an SDRAM or SRAM controller in embedded systems, the EPF6024AQI208-2N provides the address multiplexing, chip-select decoding, and refresh timing required to bridge a 32-bit processor bus to standard memory devices. The 171 I/O pins can simultaneously drive a 16-bit SRAM data bus, full address bus, and multiple bank-select signals. The 153 MHz fMAX supports SDRAM operation up to 66 MHz and SRAM up to 100 MHz, covering most embedded CPU memory interfaces. Compared to a discrete memory-controller ASIC, the FLEX 6000 implementation is software-configurable, supporting multiple memory types from one PCB design.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para EPF6024AQI208-2N — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | EPF6024AQC208-2N | EPF6024AQC208-2 | EPF6024AQI208-2 | EPF6024AQI208-1N | EPF6024AQI208-1 | EPF6024AQC208-3N |
|---|---|---|---|---|---|---|---|
| Package | PQFP-208 (0.5 mm pitch) | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same |
| Brand | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) |
| Logic Capacity | 24,000 typical gates / 1,960 LEs | 24,000 gates / 1,960 LEs - same | 24,000 gates / 1,960 LEs - same | 24,000 gates / 1,960 LEs - same | 24,000 gates / 1,960 LEs - same | 24,000 gates / 1,960 LEs - same | 24,000 gates / 1,960 LEs - same |
| User I/O | 171 I/O + 4 dedicated inputs | 171 I/O + 4 dedicated - same | 171 I/O + 4 dedicated - same | 171 I/O + 4 dedicated - same | 171 I/O + 4 dedicated - same | 171 I/O + 4 dedicated - same | 171 I/O + 4 dedicated - same |
| Speed Grade | -2 (153 MHz fMAX) | -2 (153 MHz) | -2 (153 MHz) | -2 (153 MHz) | -1 (122 MHz, ~20% slower) | -1 (122 MHz, ~20% slower) | -3 (175 MHz+) |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) |
| Lead Finish (N suffix) | Lead-free (RoHS) | Lead-free (RoHS) | Leaded (non-RoHS) | Leaded (non-RoHS) | Lead-free (RoHS) | Leaded (non-RoHS) | Lead-free (RoHS) |
| Configuration | SRAM, PS/PPA modes | SRAM, PS/PPA modes - same | SRAM, PS/PPA modes - same | SRAM, PS/PPA modes - same | SRAM, PS/PPA modes - same | SRAM, PS/PPA modes - same | SRAM, PS/PPA modes - same |
Principais diferenciais
- Industrial temperature grade with lead-free RoHS finish (vs EPF6024AQC208-2N)
- -2 speed grade for balanced fMAX margin (vs EPF6024AQI208-1N)
- Lead-free N suffix for global RoHS compliance (vs EPF6024AQI208-2)
- PQFP-208 fine-pitch SMD package for hand-reworkable designs (vs EPF6024ABC256-3 (BGA-256))
Notas de projeto
The EPF6024AQI208-2N requires a stable 3.3 V VCCINT supply with decoupling of at least 0.1 uF and 10 uF ceramic capacitors near every VCCINT/GND pair (pins 3/6, 19/22, 35/38, etc.). The I/O banks also require a separate VCCIO rail at 3.3 V; if 5 V inputs are present, use external series resistors or level shifters. Estimated core current draw for a fully-utilized design at 100 MHz is approximately 50-100 mA; design the regulator with at least 30% headroom. During configuration, the FPGA pulls transient current bursts up to 200 mA - bulk decoupling on the 3.3 V rail is recommended.
The PQFP-208 package has a 0.5 mm lead pitch, requiring PCB land patterns designed per IPC-7351 guidelines with proper solder mask slivers. Maintain at least 4 oz copper on power planes for VCCINT/VCCIO to handle switching currents. Keep configuration clock (DCLK) trace length under 50 mm and route it away from high-speed switching signals to avoid jitter-induced configuration errors. Provide a ground plane directly under the device for thermal dissipation; the PQFP-208 has a typical theta_JA of approximately 25-30 C/W in still air, but adequate copper pours are still required.
Estimated power-on configuration timing: the FLEX 6000 device enters configuration mode within 5 us of nCONFIG rising; ensure the host controller or EPC memory holds nSTATUS high during this window. A common mistake is leaving the nCONFIG pin floating - this can cause intermittent configuration failures. Always tie nCONFIG to VCCIO through a 10 kohm resistor if not actively driven. Also verify CONF_DONE has a proper pull-up (typically 10 kohm to VCCIO) - without it, the host cannot detect successful configuration completion.
Separate analog and digital ground returns where possible; the 171 user I/O switching edges create ground bounce that can couple into adjacent sensitive analog inputs. Series-terminate output traces longer than 50 mm with a 33-ohm resistor to control overshoot. Place the EPC configuration memory in the same quadrant as the FPGA to minimize DCLK skew. JTAG chain integrity requires TCK termination to ground near the FPGA and short TCK-to-TDI/TMS trace stubs (under 5 mm) to avoid ringback on the scan chain.
Informações de conformidade
N suffix denotes lead-free RoHS finish per Altera ordering information. AEC-Q100 is not applicable as the part is not marketed for automotive. REACH and halogen-free declarations were not present in the verified web data; engineers should request the IPC-1752 material declaration from the distributor.