27C256-120N vs 27C256A-12 对比
详细并排对比 27C256-120N 出自 ASI 和 27C256A-12 出自 NEC。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 | 27C256-120N | 27C256A-12 |
|---|---|---|
| 品牌 | ASI | NEC |
| 分类 | Memory ICs | Memory ICs |
| 生命周期状态 | 停产 | Obsolete |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $1.75 | $2.52 |
| Memory Organization | 32K x 8 bit (256 Kbit) | — |
| Access Time | 120 ns | 120 ns |
| Technology | CMOS EPROM (UV erasable) | CMOS |
| Supply Voltage (Read) | 5 V +/-10% | — |
| Standby Current | 20 uA typical (CMOS standby) | [DATA_NEEDED: standby current] |
| Active Current | [DATA_NEEDED: active supply current] | [DATA_NEEDED: active current] |
| Programming Method | 100% Flashrite programming | — |
| Pinout | JEDEC-approved 27C256 pinout | — |
| 封装 | 28-pin plastic DIP (DIP-28) | 28-pin DIP |
| Erase Method | Ultraviolet light (quartz window / windowed variant) | Ultraviolet light |
| 安装类型 | Through Hole | Through Hole |
| 工作温度 | [DATA_NEEDED: commercial operating temperature range] | 0C to +70C (commercial) |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | unknown |
| 输出类型 | Parallel, 3-state outputs | — |
| Control Signals | CE, OE, PGM | — |
| 生命周期状态 | End of Life (per Futurlec) | Obsolete (legacy product) |
| 存储器类型 | — | UV EPROM |
| 存储容量 | — | 256 Kbit (32K x 8) |
| 存储组织 | — | 32K x 8 |
| Supply Voltage (VCC) | — | 5 V |
| Programming Voltage (VPP) | — | [DATA_NEEDED: programming voltage VPP] |
| 接口 | — | Parallel |