EPC1LC20-WCEC52 vs EPC1LC20AL3894 对比
详细并排对比 EPC1LC20-WCEC52 出自 Altera 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-WCEC52 | EPC1LC20AL3894 |
|---|---|---|
| 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） | $7.45 | $5.45 |
| 存储器类型 | OTP Configuration PROM (Anti-fuse) | OTP Configuration PROM (EPROM-based) |
| 存储容量 | 1 Mbit (1,048,576 bits) | — |
| 存储组织 | 212,942 x 1 bit | — |
| 接口 | Serial (Altera FPP/PS configuration protocol) | — |
| Configuration Clock (DCLK) | 8 MHz maximum | — |
| Supply Voltage (VCC) | 3.3 V | 3.0 V to 3.6 V (3.3 V nominal) |
| I/O Voltage Tolerance | 5.0 V (FPGA interface) | — |
| In-System Programmability | Yes (IEEE 1149.1 JTAG) | — |
| Programmability | One-Time Programmable (OTP) | — |
| 工作温度 | -40C to +85C (industrial) | -40 °C to +85 °C (industrial) |
| 封装 | 20-pin PLCC (J-lead, through-hole, 9x9 mm) | 20-pin PLCC (J-lead) |
| Package Mounting | Through-hole (also accepts PLCC socket) | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | Unknown — verify with manufacturer |
| Lead-Free | [DATA_NEEDED: lead-free status] | — |
| Compatible FPGA Families | Cyclone, Stratix, APEX, ACEX, MAX series | APEX, ACEX, FLEX 10K, MAX 7000S/AE/B, Cyclone (legacy) |
| Programming Interface | JTAG (IEEE Std 1149.1) ISP | — |
| 引脚数量 | 20 | — |
| 生命周期状态 | Obsolete (recommended replacement: EPCQ family or newer serial config devices) | Obsolete (EOL announced by Altera / Intel PSG) |
| Memory Capacity | — | 1 Mbit (212,942 × 1-bit) |
| 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 |
| 安装类型 | — | Surface Mount / Socket (PLCC socket compatible) |
| Shipping Variant Suffix | — | AL3894 (tape-and-reel / specific Altera part marking) |