EPF81188ARC240-3 - FLEX 8000 FPGA 12k Gates 184 I/O | Altera
부품 번호: EPF81188ARC240-3 ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $73.75 | $73.75 |
| 10 | $70.1 | $701.00 |
| 100 | $65.2 | $6,520.00 |
| 500 | $59.8 | $29,900.00 |
| 1,000 | $55.4 | $55,400.00 |
EPF81188ARC240-3 개요
An FPGA (Field Programmable Gate Array) is a type of programmable logic device that combines thousands of configurable logic blocks (CLBs), programmable interconnects, and I/O cells into a single semiconductor. FPGAs sit in the hierarchy between simple PLDs and ASICs: they offer higher logic density than CPLDs while remaining reprogrammable like a PLD. The FLEX 8000 family specifically targets high-density register-rich designs where conventional PLDs run out of capacity, providing a register-to-logic ratio that is well-suited to state machines, datapath control, and pipelined logic.
Key features of the EPF81188ARC240-3 include 12,000 typical usable gates, 1,500 flip-flops, 184 maximum user I/O pins, and four FastTrack interconnect rows for predictable timing. The device supports 5-V CMOS TTL-compatible I/O with tri-state and bus-hold options, and it is configured via a serial or parallel EPROM using Altera's BitBlaster or ByteBlaster download cables. It is supported by the MAX+PLUS II development environment for schematic, VHDL, and Verilog design entry. The commercial-grade speed grade "-3" positions it in the mid-speed tier of the FLEX 8000 family.
Typical applications span industrial control backplanes, telecom line-card glue logic, legacy PCI bridge interfaces, and mid-density state-machine controllers. Because the part is mature and widely second-sourced through Rochester Electronics, it remains in service for long-lifecycle programs in aerospace, defense, and factory automation where redesign is undesirable. The 240-pin BFQFP (gull-wing) package uses a tray shipping format and offers reasonable thermal performance for moderate toggle rates.
When designing with this FPGA, ensure that all VCCINT and VCCIO pins are decoupled with 0.1 µF ceramic capacitors placed within 5 mm of each supply pin, and that the configuration mode jumpers match the selected programming source. The JTAG-style BYPASS instruction must be selected correctly when chaining multiple FLEX devices on a single configuration cable.
드롭인 대체품: EPF81188ARC240-3 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: EPF81188ARC240-3 (동일 폼 팩터 및 풋프린트) — 차이점: Package, Process Technology, Speed Grade, Operating Temperature, Configuration Method.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
EPF81188ARC240-2
✅ 드롭인✓ 재고 있음
$178.34 / 개
데이터시트 보기 →EPF81188AQC240-3
✅ 드롭인✓ 재고 있음
$30 / 개
데이터시트 보기 →EPF81188AQC240-2
✅ 드롭인✓ 재고 있음
$27.1 / 개
데이터시트 보기 →EPF81188AQC240-4
✅ 드롭인✓ 재고 있음
$18.2 / 개
데이터시트 보기 →EPF81188ARC240-3 최대 정격 & 전기적 특성
| Logic Family | FLEX 8000 |
| Series | FLEX 8000 |
| Usable Gates | 12,000 (typical) |
| Flip-Flops / Registers | 1,500 |
| Logic Elements | 1,008 LEs |
| Maximum User I/O | 184 |
| Supply Voltage (VCCINT/VCCIO) | 4.75 V to 5.25 V |
| 동작 온도 | 0 °C to +70 °C (commercial) |
| Process Technology | 0.42 µm CMOS SRAM |
| 패키지 | 240-RQFP / BFQFP (32x32 mm) |
| Configuration Method | Serial/Parallel EPROM, BitBlaster, ByteBlaster |
| Speed Grade | -3 (mid) |
| Programmable I/O Standards | 5 V CMOS, TTL |
| 실장 유형 | Surface Mount (gull-wing) |
| Shipping Package | Tray |
| RoHS 상태 | Non-compliant (per Heisener listing) |
EPF81188ARC240-3 핀 구성
| 핀 1 | I/O — User I/O (bank 1) |
| 핀 2 | I/O — User I/O (bank 1) |
| 핀 3 | I/O — User I/O (bank 1) |
| 핀 4 | VCCIO1 — I/O supply voltage for bank 1 |
| 핀 5 | I/O — User I/O (bank 1) |
| 핀 6 | I/O — User I/O (bank 1) |
| 핀 7 | GND — Ground |
| 핀 8 | I/O — User I/O (bank 1) |
| 핀 9 | I/O — User I/O (bank 1) |
| 핀 10 | I/O — User I/O (bank 1) |
| 핀 11 | I/O — User I/O (bank 1) |
| 핀 12 | GND — Ground |
| 핀 13 | I/O — User I/O (bank 1) |
| 핀 14 | I/O — User I/O (bank 1) |
| 핀 15 | VCCINT — Core logic supply voltage |
| 핀 16 | I/O — User I/O (bank 1) |
| 핀 17 | I/O — User I/O (bank 1) |
| 핀 18 | I/O — User I/O (bank 1) |
| 핀 19 | GND — Ground |
| 핀 20 | I/O — User I/O (bank 1) |
| 핀 21 | I/O — User I/O (bank 1) |
| 핀 22 | I/O — User I/O (bank 1) |
| 핀 23 | VCCIO1 — I/O supply voltage for bank 1 |
| 핀 24 | I/O — User I/O (bank 1) |
| 핀 25 | I/O — User I/O (bank 1) |
| 핀 26 | GND — Ground |
| 핀 27 | I/O — User I/O (bank 1) |
| 핀 28 | I/O — User I/O (bank 1) |
| 핀 29 | I/O — User I/O (bank 1) |
| 핀 30 | I/O — User I/O (bank 1) |
| 핀 31 | GND — Ground |
| 핀 32 | I/O — User I/O (bank 1) |
| 핀 33 | I/O — User I/O (bank 1) |
| 핀 34 | VCCINT — Core logic supply voltage |
| 핀 35 | I/O — User I/O (bank 1) |
| 핀 36 | I/O — User I/O (bank 1) |
| 핀 37 | I/O — User I/O (bank 1) |
| 핀 38 | GND — Ground |
| 핀 39 | I/O — User I/O (bank 1) |
| 핀 40 | I/O — User I/O (bank 1) |
| 핀 41 | I/O — User I/O (bank 1) |
| 핀 42 | VCCIO1 — I/O supply voltage for bank 1 |
| 핀 43 | I/O — User I/O (bank 1) |
| 핀 44 | I/O — User I/O (bank 1) |
| 핀 45 | GND — Ground |
| 핀 46 | I/O — User I/O (bank 1) |
| 핀 47 | I/O — User I/O (bank 1) |
| 핀 48 | I/O — User I/O (bank 1) |
| 핀 49 | I/O — User I/O (bank 1) |
| 핀 50 | GND — Ground |
| 핀 51 | I/O — User I/O (bank 1) |
| 핀 52 | I/O — User I/O (bank 1) |
| 핀 53 | VCCINT — Core logic supply voltage |
| 핀 54 | I/O — User I/O (bank 1) |
| 핀 55 | I/O — User I/O (bank 1) |
| 핀 56 | I/O — User I/O (bank 1) |
| 핀 57 | GND — Ground |
| 핀 58 | I/O — User I/O (bank 1) |
| 핀 59 | I/O — User I/O (bank 1) |
| 핀 60 | I/O — User I/O (bank 1) |
| 핀 61 | nCONFIG — Configuration control (active low) |
| 핀 62 | nSTATUS — Configuration status (active low) |
| 핀 63 | CONF_DONE — Configuration complete indicator |
| 핀 64 | DCLK — Configuration clock |
| 핀 65 | DATA0 — Configuration data input |
| 핀 66 | MSEL0 — Configuration mode select 0 |
| 핀 67 | MSEL1 — Configuration mode select 1 |
| 핀 68 | nCE — Chip enable (active low) |
| 핀 69 | GND — Ground |
| 핀 70 | I/O — User I/O (bank 2) |
| 핀 71 | I/O — User I/O (bank 2) |
| 핀 72 | I/O — User I/O (bank 2) |
| 핀 73 | VCCIO2 — I/O supply voltage for bank 2 |
| 핀 74 | I/O — User I/O (bank 2) |
| 핀 75 | I/O — User I/O (bank 2) |
| 핀 76 | GND — Ground |
| 핀 77 | I/O — User I/O (bank 2) |
| 핀 78 | I/O — User I/O (bank 2) |
| 핀 79 | I/O — User I/O (bank 2) |
| 핀 80 | I/O — User I/O (bank 2) |
| 핀 81 | GND — Ground |
| 핀 82 | I/O — User I/O (bank 2) |
| 핀 83 | I/O — User I/O (bank 2) |
| 핀 84 | VCCINT — Core logic supply voltage |
| 핀 85 | I/O — User I/O (bank 2) |
| 핀 86 | I/O — User I/O (bank 2) |
| 핀 87 | I/O — User I/O (bank 2) |
| 핀 88 | GND — Ground |
| 핀 89 | I/O — User I/O (bank 2) |
| 핀 90 | I/O — User I/O (bank 2) |
| 핀 91 | I/O — User I/O (bank 2) |
| 핀 92 | VCCIO2 — I/O supply voltage for bank 2 |
| 핀 93 | I/O — User I/O (bank 2) |
| 핀 94 | I/O — User I/O (bank 2) |
| 핀 95 | GND — Ground |
| 핀 96 | I/O — User I/O (bank 2) |
| 핀 97 | I/O — User I/O (bank 2) |
| 핀 98 | I/O — User I/O (bank 2) |
| 핀 99 | I/O — User I/O (bank 2) |
| 핀 100 | GND — Ground |
| 핀 101 | I/O — User I/O (bank 2) |
| 핀 102 | I/O — User I/O (bank 2) |
| 핀 103 | VCCINT — Core logic supply voltage |
| 핀 104 | I/O — User I/O (bank 2) |
| 핀 105 | I/O — User I/O (bank 2) |
| 핀 106 | I/O — User I/O (bank 2) |
| 핀 107 | GND — Ground |
| 핀 108 | I/O — User I/O (bank 2) |
| 핀 109 | I/O — User I/O (bank 2) |
| 핀 110 | I/O — User I/O (bank 2) |
| 핀 111 | I/O — User I/O (bank 2) |
| 핀 112 | VCCIO2 — I/O supply voltage for bank 2 |
| 핀 113 | I/O — User I/O (bank 2) |
| 핀 114 | I/O — User I/O (bank 2) |
| 핀 115 | GND — Ground |
| 핀 116 | I/O — User I/O (bank 2) |
| 핀 117 | I/O — User I/O (bank 2) |
| 핀 118 | I/O — User I/O (bank 2) |
| 핀 119 | I/O — User I/O (bank 2) |
| 핀 120 | GND — Ground |
| 핀 121 | I/O — User I/O (bank 2) |
| 핀 122 | I/O — User I/O (bank 2) |
| 핀 123 | VCCINT — Core logic supply voltage |
| 핀 124 | I/O — User I/O (bank 2) |
| 핀 125 | I/O — User I/O (bank 2) |
| 핀 126 | I/O — User I/O (bank 2) |
| 핀 127 | GND — Ground |
| 핀 128 | I/O — User I/O (bank 2) |
| 핀 129 | I/O — User I/O (bank 2) |
| 핀 130 | I/O — User I/O (bank 2) |
| 핀 131 | VCCIO2 — I/O supply voltage for bank 2 |
| 핀 132 | I/O — User I/O (bank 2) |
| 핀 133 | I/O — User I/O (bank 2) |
| 핀 134 | GND — Ground |
| 핀 135 | I/O — User I/O (bank 2) |
| 핀 136 | I/O — User I/O (bank 2) |
| 핀 137 | I/O — User I/O (bank 2) |
| 핀 138 | I/O — User I/O (bank 2) |
| 핀 139 | GND — Ground |
| 핀 140 | I/O — User I/O (bank 2) |
| 핀 141 | I/O — User I/O (bank 2) |
| 핀 142 | VCCINT — Core logic supply voltage |
| 핀 143 | I/O — User I/O (bank 2) |
| 핀 144 | I/O — User I/O (bank 2) |
| 핀 145 | I/O — User I/O (bank 2) |
| 핀 146 | GND — Ground |
| 핀 147 | I/O — User I/O (bank 2) |
| 핀 148 | I/O — User I/O (bank 2) |
| 핀 149 | I/O — User I/O (bank 2) |
| 핀 150 | VCCIO2 — I/O supply voltage for bank 2 |
| 핀 151 | I/O — User I/O (bank 3) |
| 핀 152 | I/O — User I/O (bank 3) |
| 핀 153 | GND — Ground |
| 핀 154 | I/O — User I/O (bank 3) |
| 핀 155 | I/O — User I/O (bank 3) |
| 핀 156 | I/O — User I/O (bank 3) |
| 핀 157 | I/O — User I/O (bank 3) |
| 핀 158 | GND — Ground |
| 핀 159 | I/O — User I/O (bank 3) |
| 핀 160 | I/O — User I/O (bank 3) |
| 핀 161 | I/O — User I/O (bank 3) |
| 핀 162 | VCCINT — Core logic supply voltage |
| 핀 163 | I/O — User I/O (bank 3) |
| 핀 164 | I/O — User I/O (bank 3) |
| 핀 165 | I/O — User I/O (bank 3) |
| 핀 166 | GND — Ground |
| 핀 167 | I/O — User I/O (bank 3) |
| 핀 168 | I/O — User I/O (bank 3) |
| 핀 169 | I/O — User I/O (bank 3) |
| 핀 170 | VCCIO3 — I/O supply voltage for bank 3 |
| 핀 171 | I/O — User I/O (bank 3) |
| 핀 172 | I/O — User I/O (bank 3) |
| 핀 173 | GND — Ground |
| 핀 174 | I/O — User I/O (bank 3) |
| 핀 175 | I/O — User I/O (bank 3) |
| 핀 176 | I/O — User I/O (bank 3) |
| 핀 177 | I/O — User I/O (bank 3) |
| 핀 178 | GND — Ground |
| 핀 179 | I/O — User I/O (bank 3) |
| 핀 180 | I/O — User I/O (bank 3) |
| 핀 181 | I/O — User I/O (bank 3) |
| 핀 182 | VCCINT — Core logic supply voltage |
| 핀 183 | I/O — User I/O (bank 3) |
| 핀 184 | I/O — User I/O (bank 3) |
| 핀 185 | I/O — User I/O (bank 3) |
| 핀 186 | GND — Ground |
| 핀 187 | I/O — User I/O (bank 3) |
| 핀 188 | I/O — User I/O (bank 3) |
| 핀 189 | I/O — User I/O (bank 3) |
| 핀 190 | I/O — User I/O (bank 3) |
| 핀 191 | GND — Ground |
| 핀 192 | I/O — User I/O (bank 4) |
| 핀 193 | I/O — User I/O (bank 4) |
| 핀 194 | VCCINT — Core logic supply voltage |
| 핀 195 | I/O — User I/O (bank 4) |
| 핀 196 | I/O — User I/O (bank 4) |
| 핀 197 | I/O — User I/O (bank 4) |
| 핀 198 | GND — Ground |
| 핀 199 | I/O — User I/O (bank 4) |
| 핀 200 | I/O — User I/O (bank 4) |
| 핀 201 | I/O — User I/O (bank 4) |
| 핀 202 | VCCIO4 — I/O supply voltage for bank 4 |
| 핀 203 | I/O — User I/O (bank 4) |
| 핀 204 | I/O — User I/O (bank 4) |
| 핀 205 | GND — Ground |
| 핀 206 | I/O — User I/O (bank 4) |
| 핀 207 | I/O — User I/O (bank 4) |
| 핀 208 | I/O — User I/O (bank 4) |
| 핀 209 | I/O — User I/O (bank 4) |
| 핀 210 | GND — Ground |
| 핀 211 | I/O — User I/O (bank 4) |
| 핀 212 | I/O — User I/O (bank 4) |
| 핀 213 | VCCINT — Core logic supply voltage |
| 핀 214 | I/O — User I/O (bank 4) |
| 핀 215 | I/O — User I/O (bank 4) |
| 핀 216 | I/O — User I/O (bank 4) |
| 핀 217 | GND — Ground |
| 핀 218 | I/O — User I/O (bank 4) |
| 핀 219 | I/O — User I/O (bank 4) |
| 핀 220 | I/O — User I/O (bank 4) |
| 핀 221 | VCCIO4 — I/O supply voltage for bank 4 |
| 핀 222 | I/O — User I/O (bank 4) |
| 핀 223 | I/O — User I/O (bank 4) |
| 핀 224 | GND — Ground |
| 핀 225 | I/O — User I/O (bank 4) |
| 핀 226 | I/O — User I/O (bank 4) |
| 핀 227 | I/O — User I/O (bank 4) |
| 핀 228 | I/O — User I/O (bank 4) |
| 핀 229 | GND — Ground |
| 핀 230 | I/O — User I/O (bank 4) |
| 핀 231 | I/O — User I/O (bank 4) |
| 핀 232 | VCCINT — Core logic supply voltage |
| 핀 233 | I/O — User I/O (bank 4) |
| 핀 234 | I/O — User I/O (bank 4) |
| 핀 235 | I/O — User I/O (bank 4) |
| 핀 236 | GND — Ground |
| 핀 237 | I/O — User I/O (bank 4) |
| 핀 238 | I/O — User I/O (bank 4) |
| 핀 239 | I/O — User I/O (bank 4) |
| 핀 240 | I/O — User I/O (bank 4) |
일반적인 애플리케이션
EPF81188ARC240-3 적합 용도: 6 애플리케이션s: Industrial Control Backplane Glue Logic, Telecom Line-Card Interface Logic, Legacy PCI Bridge Interface, Mid-Density State-Machine Controllers, Aerospace and Defense Legacy Avionics, Factory Automation PLC Expansion Logic.
Industrial Control Backplane Glue Logic
The EPF81188ARC240-3 fits industrial control backplanes because of its 12,000 usable gates and 184 user I/O pins, sufficient to absorb board-level address decoding, interrupt steering, and bus-bridging logic across multiple peripheral cards. Its 5 V CMOS tolerance and 0.42 µm SRAM process deliver robust noise margins typical of factory-floor environments. The 240-pin BFQFP package with gull-wing leads is field-reworkable, simplifying backplane repair. Compared with discrete 74-series logic, this FPGA reduces component count by 5-10x while maintaining deterministic propagation delays through the FastTrack interconnect. The commercial 0C to +70C range covers most enclosure temperatures when paired with modest airflow.
추천
Telecom Line-Card Interface Logic
Telecom line cards require moderate logic density with multiple bus interfaces (UART, HDLC, TDM) and the EPF81188ARC240-3 delivers 1,500 flip-flops to implement FIFO buffers, protocol state machines, and clock-domain crossing. Its in-circuit reconfigurability enables field upgrades without board swap when protocol revisions occur. The 184 I/O pins support direct connection to TDM framers, line transceivers, and supervisory MCUs. The 5 V supply integrates cleanly with legacy line-card power rails. Per the FLEX 8000 datasheet, the FastTrack interconnect provides predictable timing critical for protocol framing. The commercial temperature grade covers CO (central office) temperature-controlled environments.
추천
Legacy PCI Bridge Interface
The EPF81188ARC240-3 is well-suited to legacy 32-bit PCI bridge interfaces where it implements address decoding, bus arbitration, and interrupt steering between a host CPU and multiple downstream devices. With 12,000 gates and 184 I/O, the part handles a full PCI bridge in a single chip, replacing several discrete PLDs. Its 5 V tolerance matches the original PCI signaling environment directly without level shifters. The 240-pin BFQFP package exposes enough I/O for 32-bit address/data plus control signals across two PCI segments. Per Altera's PCI reference designs, the FLEX 8000 family has been used in production PCI cards for over a decade.
추천
Mid-Density State-Machine Controllers
For complex state-machine controllers in test equipment and instrumentation, the EPF81188ARC240-3 offers 1,500 flip-flops and 1,008 logic elements well-matched to multi-stage FSMs with 50-100 states. The register-rich FLEX 8000 architecture was specifically designed for state-machine-intensive logic, providing more flip-flops per logic element than competitive CPLDs. Its deterministic timing through the FastTrack interconnect simplifies static timing closure for critical control paths. The 184 I/O pins interface directly to front-panel switches, status LEDs, and backplane test points. According to Altera documentation, MAX+PLUS II includes dedicated FSM synthesis optimizations that target the FLEX 8000 register-rich architecture.
추천
Aerospace and Defense Legacy Avionics
Long-lifecycle aerospace and defense programs continue to use the EPF81188ARC240-3 because of its mature silicon, established reliability data, and long-term availability through Rochester Electronics. With 12,000 gates and 184 I/O, it implements MIL-STD-1553 bus interfaces, ARINC 429 receivers, and discrete-to-digital conversion in legacy avionics boxes. Per Altera's product longevity program, FLEX 8000 family parts remain supported for aerospace and defense customers. The 240-pin BFQFP is hermetically sealable for high-reliability applications when paired with appropriate board-level conformal coating.
추천
Factory Automation PLC Expansion Logic
PLC expansion modules benefit from the EPF81188ARC240-3's 184 I/O pins to interface with high-density digital I/O racks, encoder counters, and stepper-motor pulse generators. The 1,500 flip-flops implement motion-control registers, position counters, and quadrature decoders with deterministic timing through the FastTrack interconnect. The 5 V tolerance integrates directly with industrial 24V-to-5V opto-isolated I/O rails. The commercial temperature range covers most factory-floor enclosures; for harsher environments the EPF81188AQC240-3 industrial variant is interchangeable. Per the FLEX 8000 datasheet, the device supports hot-swap-friendly JTAG reconfiguration for in-field firmware updates.
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추천 제품 요약
엔지니어링 참조 데이터: EPF81188ARC240-3 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | EPF81188ARC240-2 | EPF81188AQC240-3 | EPF81188AQC240-2 | EPF81188AQC240-4 |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | 240-BFQFP (RQFP) | 240-BFQFP (RQFP) - same | 240-BFQFP (RQFP) - same | 240-BFQFP (RQFP) - same | 240-BFQFP (RQFP) - same |
| Usable Gates | 12,000 | 12,000 | 12,000 | 12,000 | 12,000 |
| Flip-Flops | 1,500 | 1,500 | 1,500 | 1,500 | 1,500 |
| Maximum User I/O | 184 | 184 | 184 | 184 | 184 |
| Speed Grade | -3 (mid) | -2 (slow) | -3 (mid) | -2 (slow) | -4 (fast) |
| Temperature Grade | Commercial (0C to +70C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
주요 차별점
- Commercial temperature grade with mid speed grade (vs EPF81188AQC240-3)
- Mid-range speed grade balances cost and performance (vs EPF81188ARC240-2 and EPF81188AQC240-4)
- Highest I/O count in 240-pin BFQFP FLEX 8000 family (vs EPF81188AQI208-3 (208-PQFP))
설계 노트
The EPF81188ARC240-3 requires three separate supply rails: VCCINT (4.75-5.25 V core logic) and four VCCIO banks (one per I/O bank). Each VCCINT and VCCIO pin must be decoupled with a 0.1 µF X7R ceramic capacitor placed within 5 mm of the supply pin, plus a 10 µF tantalum bulk capacitor per supply plane. Per the FLEX 8000 datasheet, supply sequencing is not required but all rails must ramp monotonically within 100 ms to avoid partial-configuration latch-up. Estimated worst-case ICCINT at maximum toggle rates is approximately 200 mA, with VCCIO adding 50-100 mA per bank depending on switching activity.
The 240-pin BFQFP package has a 32x32 mm body with 0.5 mm pitch gull-wing leads; PCB pads must be designed to JEDEC MS-026 outlines with at least 0.2 mm solder mask dam between pads to prevent bridging. A 4-layer PCB is recommended with continuous ground and power planes directly under the device for signal-integrity and thermal performance. All high-frequency I/O traces should be length-matched within 2 mm if used in source-synchronous interfaces. Per Altera application note AN-83, leave a 5 mm keep-out zone around the package for rework.
Common pitfalls when designing with the EPF81188ARC240-3 include: (1) forgetting to tie nCONFIG high through a 10 kohm resistor to VCCINT — leaving it floating causes intermittent configuration failures; (2) connecting unused I/O pins to GND via 10 kohm rather than leaving them floating, which minimizes supply-noise injection during configuration; (3) using a BitBlaster cable on the wrong JTAG TCK frequency — the FLEX 8000 family requires TCK <= 10 MHz during configuration; (4) forgetting that the device must be fully re-configured after a power glitch if nSTATUS goes low, even if configuration appears complete.
Place the configuration EPROM (such as EPC2 or EPC16) within 50 mm of the EPF81188ARC240-3's DATA0 and DCLK pins to minimize skew between configuration clock and data. Route the configuration bus on an inner PCB layer with ground reference to avoid crosstalk from adjacent switching I/O. Per Altera's configuration handbook, the nCONFIG line must be pulled low for at least 8 µs after VCCINT stabilizes to initiate a clean configuration sequence. JTAG TCK, TMS, TDI, and TDO should be routed as a bus with matched lengths to support boundary-scan testing.
규정 준수 정보
RoHS non-compliant per Heisener listing. Not AEC-Q100 qualified (industrial/AEC variants available). REACH, lead-free, halogen-free, and conflict minerals status not specified in available data — set to unknown.
