27C256A-12 vs 27C512-10 对比
详细并排对比 27C256A-12 出自 NEC 和 27C512-10 出自 Texas Instruments。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 | 27C512-10 |
|---|---|---|
| 品牌 | NEC | Texas Instruments |
| 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 | $2.70 |
| 存储器类型 | UV EPROM | OTP EPROM (CMOS) |
| Technology | CMOS | — |
| 存储容量 | 256 Kbit (32K x 8) | 512 Kbit |
| 存储组织 | 32K x 8 | 64K x 8 |
| Access Time | 120 ns | — |
| Supply Voltage (VCC) | 5 V | +5 V with +/-10% tolerance |
| Programming Voltage (VPP) | [DATA_NEEDED: programming voltage VPP] | +12.5 V |
| 接口 | Parallel | Parallel, TTL compatible |
| 工作温度 | 0C to +70C (commercial) | [DATA_NEEDED: operating temperature range] |
| 封装 | 28-pin DIP | 28-pin DIP |
| 安装类型 | Through Hole | Through Hole |
| Erase Method | Ultraviolet light | One-Time Programmable (not erasable) |
| Standby Current | [DATA_NEEDED: standby current] | 20 uA typical (CMOS standby) |
| Active Current | [DATA_NEEDED: active current] | — |
| RoHS 状态 | unknown | unknown |
| 生命周期状态 | Obsolete (legacy product) | — |
| Access Time (Speed Grade -10) | — | 100 ns |
| Operating Mode | — | Totally static operation |
| Address Lines | — | 15 (A0-A14) |
| Data Lines | — | 8 (Q0-Q7), tri-state outputs |
| Control Signals | — | /E (chip enable), /G (output enable) |
| Pinout Standard | — | JEDEC-approved 28-pin EPROM pinout |