EPC2LC20NU vs EPC2LC20N-W 对比
详细并排对比 EPC2LC20NU 出自 Altera 和 EPC2LC20N-W 出自 Altera。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 | EPC2LC20NU | EPC2LC20N-W |
|---|---|---|
| 品牌 | Altera | Altera |
| 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） | $8.20 | $6.45 |
| 功能 | In-System Programmable Configuration PROM | — |
| Memory Density | 1.6 Mbit | — |
| FPGA Interface | Altera serial (4-pin: nCS, DCLK, DATA, nINIT_CONF) | — |
| Supply Voltage (VCC) | 3.0 V to 3.6 V | 3.0 V to 3.6 V, 4.75 V to 5.25 V |
| I/O Tolerance | 5 V tolerant inputs (per datasheet, except JTAG pins) | — |
| Programming Method | In-system via IEEE 1149.1 JTAG | — |
| JTAG Support | Yes (IEEE Std 1149.1 boundary-scan compliant) | — |
| Cascade Support | Yes - daisy-chain for larger bitstreams | Yes (with other EPC2 devices) |
| Minimum DC Input | -0.3 V (inputs may undershoot to -2.0 V for <20 ns) | — |
| Maximum Overshoot | 7.0 V for <100 mA and <20 ns | — |
| 封装 | 20-pin J-lead PLCC (9x9 mm) | 20-LCC (J-Lead) PLCC-20 |
| 安装类型 | Surface Mount | Surface Mount |
| Lead-Free / RoHS | Non-LEAD / non-RoHS (NU suffix = matte tin Sn finish, not Pb-free) | [DATA_NEEDED: RoHS status for -W variant] |
| 工作温度 | 0C to +70C (commercial) | [DATA_NEEDED: operating temperature range] |
| Compatibility | Altera APEX 20K, APEX II, Mercury, FLEX 10K, ACEX 1K, Cyclone (legacy serial configuration) | — |
| 存储器类型 | — | EPROM (UV-erasable, ISP) |
| 存储容量 | — | 1.6 Mbit |
| Programmable Type | — | In System Programmable |
| Configuration Interface | — | Serial (DATA, DCLK, OE, nCS) |
| Internal Oscillator Frequency | — | 66.7 MHz |
| ISP Interface | — | JTAG (IEEE 1149.1) |
| Supported FPGA Families | — | APEX 20K, ACEX 1K, Mercury, FLEX 10K, Stratix, Cyclone |
| Packaging | — | Tape & Reel (-W suffix) |
| 引脚数量 | — | 20 |