EPC1LC20AL3894 vs EPC1LC20-W 对比
详细并排对比 EPC1LC20AL3894 出自 Intel 和 EPC1LC20-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 | EPC1LC20AL3894 | EPC1LC20-W |
|---|---|---|
| 品牌 | Intel | 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） | $5.45 | $9.85 |
| 存储器类型 | OTP Configuration PROM (EPROM-based) | OTP (One-Time Programmable) Configuration PROM |
| Memory Capacity | 1 Mbit (212,942 × 1-bit) | — |
| 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) | — |
| 封装 | 20-pin PLCC (J-lead) | 20-PLCC J-lead (9x9 mm) |
| Package Dimensions | 9.0 × 9.0 × 4.5 mm (PLCC-20) | — |
| 工作温度 | -40 °C to +85 °C (industrial) | — |
| 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 | — |
| Compatible FPGA Families | APEX, ACEX, FLEX 10K, MAX 7000S/AE/B, Cyclone (legacy) | — |
| 安装类型 | Surface Mount / Socket (PLCC socket compatible) | Surface Mount (PLCC socket or direct solder) |
| RoHS 状态 | Unknown — verify with manufacturer | Compliant (Pb-free -W finish) |
| 生命周期状态 | Obsolete (EOL announced by Altera / Intel PSG) | — |
| Shipping Variant Suffix | AL3894 (tape-and-reel / specific Altera part marking) | — |
| 存储容量 | — | 1 Mbit |
| Configuration Clock (DCLK) | — | 8 MHz maximum |
| 电源电压 | — | 3.3 V and 5.0 V |
| 接口 | — | Altera serial configuration (DCLK / DATA / nCONFIG / nSTATUS) |
| In-System Programming | — | Yes - IEEE 1149.1 (JTAG) ISP at 3.3 V / 5.0 V |
| Lead Finish | — | Pb-free (matte tin) - "-W" suffix |
| Daisy-Chain Support | — | Yes - multiple EPC1 / EPC2 devices cascade to program larger FPGAs |
| Compression Support | — | Yes - stores compressed Altera FPGA bitstreams |
| 工作温度范围 | — | [DATA_NEEDED: operating temperature range] |
| Programming Cycles | — | 1 (OTP) |
| Target FPGA Families | — | Cyclone, FLEX 6000 / 10K / 10KE, ACEX 1K, APEX 20K, Mercury |