EPC1LI20 vs EPC21C20U 对比
详细并排对比 EPC1LI20 出自 Altera 和 EPC21C20U 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 | EPC1LI20 | EPC21C20U |
|---|---|---|
| 品牌 | Altera | Intel |
| 分类 | Memory ICs | Memory ICs |
| 生命周期状态 | Obsolete | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $8.50 | $9.85 |
| 存储器类型 | OTP Configuration PROM (EPROM-based) | — |
| 存储容量 | 1 Mb (1,048,576 bits) | 20 Mbit (2.5 Mbyte) |
| Configuration Interface | Altera Passive Serial / Altera Active Serial / JTAG (IEEE 1149.1) | — |
| Maximum Configuration Clock | 8 MHz | — |
| Supply Voltage (VCC) | 5.0 V (4.75 V to 5.25 V) | 3.0 V to 3.6 V (3.3 V typical) |
| Programming Voltage (VPP) | 12.75 V (typical, factory-programmed via JTAG) | — |
| 封装 | 20-pin PLCC (J-lead, 9x9 mm) | 20-pin UBGA (Ultra FineLine BGA) - also called 20-pin FBGA |
| 引脚数量 | 20 | — |
| 工作温度 | [DATA_NEEDED: operating temperature range] | -40 C to +85 C (industrial) |
| Cascading Support | Yes (nCASC pin for multi-device daisy chain) | — |
| Endurance | OTP (one-time programmable, 1000 erase-equivalent UV cycles for pre-program erase) | — |
| JTAG Programming | Yes (in-system via IEEE 1149.1) | — |
| Compatible FPGA Families | FLEX 8000, FLEX 10K, ACEX 1K, APEX 20K, Mercury | — |
| 安装类型 | Surface Mount (PLCC socket compatible) | Surface Mount (BGA) |
| MSL 等级 | 1 (per Partstack datasheet record) | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status - original Altera part may be non-RoHS SnPb finish] | Compliant (per Intel/Altera product page) |
| Manufacturer | — | Intel / Altera |
| Product Type | — | Configuration Device (Boot Flash) |
| 接口 | — | Altera/Intel Passive Serial (PS) and Active Serial (AS), JTAG (IEEE 1149.1) |
| In-System Programmability | — | Yes (via JTAG) |
| Bitstream Compression Support | — | Yes |
| Cascade (Multi-Device) Support | — | Yes (nCASC daisy-chain) |
| Supported FPGA Families | — | APEX II, APEX 20KE, APEX 20KC, Mercury, Stratix, Cyclone, ACEX 1K, FLEX 10KE |
| Lead-Free | — | Yes |
| Configuration Mode | — | Passive Serial (PS) / Active Serial (AS) via FPGA controller |