EPC1LC20U vs EPC1LC20W 对比
详细并排对比 EPC1LC20U 出自 Altera 和 EPC1LC20W 出自 Intel。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | EPC1LC20U | EPC1LC20W |
|---|---|---|
| 品牌 | Altera | Intel |
| 分类 | Memory ICs | Memory ICs |
| 生命周期状态 | Obsolete | Obsolete |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $9.75 | $9.55 |
| 存储器类型 | OTP (One-Time-Programmable) Configuration PROM | Serial Configuration Flash |
| Memory Density | 1 Mbit | 1 Mbit |
| Configuration Interface | Altera Serial Configuration (4-wire) | — |
| Maximum DCLK Frequency | 8 MHz | — |
| 封装 | 20-pin PLCC (9x9 mm) | PLCC-20 (J-lead, through-hole) |
| Operating Voltage (VCC) | 3.3 V typical [DATA_NEEDED: full range] | — |
| Configuration Time | [DATA_NEEDED: depends on bitstream length and DCLK] | — |
| Cascading Support | Yes (multi-PROM daisy-chain for larger bitstreams) | — |
| Programming Method | Altera APU / third-party JTAG programmer | — |
| Lead-Free (Pb-free) Finish | Yes ("U" suffix) | — |
| 安装类型 | Surface Mount | Through-Hole (PLCC socket or solder) |
| Compatibility | Altera SRAM-based LUT FPGAs (APEX, FLEX, ACEX, Cyclone, Stratix families) | — |
| 工作温度 | [DATA_NEEDED: industrial/commercial grade range] | [DATA_NEEDED: industrial / commercial temp grade] |
| MSL 等级 | [DATA_NEEDED] | [DATA_NEEDED: MSL rating] |
| RoHS 状态 | Compliant (Pb-free finish, "U" suffix) | [DATA_NEEDED: RoHS compliance status] |
| 接口 | — | Serial (Altera passive serial configuration) |
| 最大时钟频率 | — | 8 MHz |
| 电源电压 | — | 3.0 V to 5.5 V |
| 引脚数量 | — | 20 |
| Configuration Handshake Pins | — | nCONFIG, nSTATUS, CONF_DONE |
| Standby Current | — | [DATA_NEEDED: typical Icc standby] |
| Active Current | — | [DATA_NEEDED: typical Icc active] |
| Reconfiguration Support | — | Yes (nCONFIG toggle triggers reload) |
| Compatible FPGA Families | — | Classic, MAX, FLEX, ACEX, Cyclone, APEX |
| Lead-Free | — | [DATA_NEEDED: lead-free / SnPb plating] |