EPC1LC20 vs EPC1LC20AL3894 对比
详细并排对比 EPC1LC20 出自 Intel 和 EPC1LC20AL3894 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 | EPC1LC20 | EPC1LC20AL3894 |
|---|---|---|
| 品牌 | Intel | 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） | $7.95 | $5.45 |
| 存储器类型 | Non-volatile configuration memory (Flash/EPROM) | OTP Configuration PROM (EPROM-based) |
| Memory Capacity | 1 Mbit (1,048,576 bits) | 1 Mbit (212,942 × 1-bit) |
| 接口类型 | Serial configuration interface | — |
| Maximum DCLK Frequency | 8 MHz | — |
| 电源电压 | 3.3 V or 5.0 V | — |
| In-System Programmability | Yes (IEEE 1149.1 / JTAG) | — |
| Programmable Voltage | 5.0 V and 3.3 V ISP | — |
| Configuration Mode | Serial, multi-device daisy-chain capable | — |
| 封装 | 20-pin PLCC (J-leaded, surface mount) | 20-pin PLCC (J-lead) |
| 引脚数量 | 20 | — |
| 安装类型 | Surface Mount | Surface Mount / Socket (PLCC socket compatible) |
| 工作温度 | [DATA_NEEDED: Operating temperature range] | -40 °C to +85 °C (industrial) |
| Compatible FPGA Families | ACEX 1K, APEX 20K, FLEX 10K, Cyclone, Mercury | APEX, ACEX, FLEX 10K, MAX 7000S/AE/B, Cyclone (legacy) |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | Unknown — verify with manufacturer |
| JTAG Pins | TCK, TMS, TDI, TDO | — |
| Supply Voltage (VCC) | — | 3.0 V to 3.6 V (3.3 V nominal) |
| Configuration Clock Frequency | — | Up to 8 MHz |
| Configuration Interface | — | Serial (Altera standard 4-wire: DATA, DCLK, nCS, nINIT_CONF) |
| Package Dimensions | — | 9.0 × 9.0 × 4.5 mm (PLCC-20) |
| Programming Method | — | Factory / Altera programming service (one-time only) |
| Erasure | — | Windowed package supports UV erase (ceramic DIP variant); PLCC is OTP |
| 输出配置 | — | Serial data out on DCLK rising edge |
| 生命周期状态 | — | Obsolete (EOL announced by Altera / Intel PSG) |
| Shipping Variant Suffix | — | AL3894 (tape-and-reel / specific Altera part marking) |