27C256A-12 vs 27C256L-12TMB 比較
詳細並排比較 27C256A-12 由 NEC 與 27C256L-12TMB 由 STMicroelectronics. 比較關鍵規格、電氣參數、封裝、生命週期狀態、價格與供貨情況，以找出最符合您設計需求的元件。
規格比較
| 參數 | 27C256A-12 | 27C256L-12TMB |
|---|---|---|
| 品牌 | NEC | STMicroelectronics |
| 類別 | Memory ICs | Memory ICs |
| 生命週期狀態 | Obsolete | 停產終止 |
| 記憶體類型 | UV EPROM | UV EPROM |
| Technology | CMOS | CMOS |
| 記憶體容量 | 256 Kbit (32K x 8) | 256 Kbit |
| 組織 | 32K x 8 | 32K x 8 |
| Access Time | 120 ns | 120 ns |
| Supply Voltage (VCC) | 5 V | 4.5 V to 5.5 V |
| Programming Voltage (VPP) | [DATA_NEEDED: programming voltage VPP] | [DATA_NEEDED: programming voltage] |
| 介面 | Parallel | — |
| 工作溫度 | 0C to +70C (commercial) | [DATA_NEEDED: operating temperature range] |
| 封裝 | 28-pin DIP | 28-pin Ceramic Leadless Chip Carrier (CLLCC) |
| 安裝類型 | Through Hole | Surface Mount |
| Erase Method | Ultraviolet light | — |
| Standby Current | [DATA_NEEDED: standby current] | — |
| Active Current | [DATA_NEEDED: active current] | — |
| RoHS 狀態 | unknown | unknown |
| 生命週期狀態 | Obsolete (legacy product) | — |
| Minimum Supply Voltage | — | 4.5 V |
| Temperature Grade | — | Military |
| Number of Terminals | — | 28 |
| Package Shape | — | Rectangular |
| Address Lines | — | 15 (A0 to A14) |
| Data Outputs | — | 8, tri-state |
| I/O Level | — | TTL compatible |