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