27C512-20FA vs 27C512QC-55 对比
详细并排对比 27C512-20FA 出自 NXP Semiconductors 和 27C512QC-55 出自 Macronix。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 | 27C512-20FA | 27C512QC-55 |
|---|---|---|
| 品牌 | NXP Semiconductors | Macronix |
| 分类 | Memory ICs | Memory ICs |
| 生命周期状态 | Obsolete | 停产 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $1.85 | $4.22 |
| 存储容量 | 524,288 bit (512 Kbit) | — |
| 存储组织 | 64K x 8 | — |
| Maximum Access Time | 200 ns | — |
| Supply Voltage Range | 4.5 V to 5.5 V | — |
| Technology | CMOS EPROM | — |
| 存储器类型 | UV / OTP EPROM (non-volatile) | CMOS UV EPROM |
| Temperature Grade | Commercial | — |
| Number of Terminals | 28 | — |
| Package Code | DIP (rectangular) | — |
| 安装类型 | Through Hole | Through Hole |
| Access Mode | Asynchronous | — |
| 输出类型 | Tri-state, 8-bit parallel | — |
| Address Inputs | A0 to A15 (16-bit address bus) | — |
| Control Signals | /CE (chip enable), /OE (output enable), /PGM | — |
| RoHS 状态 | unknown | [DATA_NEEDED: RoHS status] |
| Operating Supply Nominal | 5 V | — |
| Memory Organization | — | 512K-bit (64K x 8) |
| Access Time | — | 55 ns |
| Supply Voltage (Read) | — | Single +5 V |
| Programming Voltage (VPP) | — | +12.5 V |
| Family Speed Grades | — | 45/55/70/90/100/120/150 ns |
| Operation | — | Totally static |
| Interface Compatibility | — | Completely TTL compatible |
| Address Bus | — | A0 to A14 (15 lines) |
| Data Bus | — | D0 to D7 (8 lines, bidirectional 3-state) |
| 封装 | — | 28-pin ceramic DIP with quartz window (QC) |
| Erase Method | — | Ultraviolet light through quartz window |
| 工作温度 | — | [DATA_NEEDED: operating temperature range] |
| Standby Current | — | [DATA_NEEDED: standby current] |