27C256L-12TMB vs 27C256A-12 对比
详细并排对比 27C256L-12TMB 出自 STMicroelectronics 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 | 27C256L-12TMB | 27C256A-12 |
|---|---|---|
| 品牌 | STMicroelectronics | 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） | $8.25 | $2.52 |
| 存储容量 | 256 Kbit | 256 Kbit (32K x 8) |
| 存储组织 | 32K x 8 | 32K x 8 |
| Access Time | 120 ns | 120 ns |
| Supply Voltage (VCC) | 4.5 V to 5.5 V | 5 V |
| Minimum Supply Voltage | 4.5 V | — |
| Technology | CMOS | CMOS |
| 存储器类型 | UV EPROM | UV EPROM |
| Temperature Grade | Military | — |
| 工作温度 | [DATA_NEEDED: operating temperature range] | 0C to +70C (commercial) |
| 封装 | 28-pin Ceramic Leadless Chip Carrier (CLLCC) | 28-pin DIP |
| Number of Terminals | 28 | — |
| Package Shape | Rectangular | — |
| Address Lines | 15 (A0 to A14) | — |
| Data Outputs | 8, tri-state | — |
| 安装类型 | Surface Mount | Through Hole |
| Programming Voltage (VPP) | [DATA_NEEDED: programming voltage] | [DATA_NEEDED: programming voltage VPP] |
| I/O Level | TTL compatible | — |
| RoHS 状态 | unknown | unknown |
| 接口 | — | Parallel |
| Erase Method | — | Ultraviolet light |
| Standby Current | — | [DATA_NEEDED: standby current] |
| Active Current | — | [DATA_NEEDED: active current] |
| 生命周期状态 | — | Obsolete (legacy product) |