27C256A-20 vs 27C256A-12 比較
詳細並排比較 27C256A-20 由 Fujitsu 與 27C256A-12 由 NEC. 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-20 | 27C256A-12 |
|---|---|---|
| 品牌 | Fujitsu | NEC |
| 類別 | Memory ICs | Memory ICs |
| 生命週期狀態 | Obsolete | Obsolete |
| 記憶體容量 | 256 Kbit | 256 Kbit (32K x 8) |
| 組織 | 32K x 8 (32768 bytes) | 32K x 8 |
| 記憶體類型 | OTP EPROM (CMOS) | UV EPROM |
| Maximum Access Time | 200 ns (-20 speed grade) | — |
| 供應電壓 | 5 V single supply | — |
| Address Lines | A0 to A14 (15 lines) | — |
| Data Lines | O0 to O7 (8-bit, tri-state) | — |
| Control Signals | CE, OE, PGM | — |
| Standby Mode | Static standby (low-power deselect) | — |
| Programming Method | Fast single address location programming | — |
| Output Compatibility | TTL-compatible | — |
| Erasability | One-Time Programmable (no window) | — |
| 封裝 | 28-pin DIP / PLCC (per ordering code) | 28-pin DIP |
| 安裝類型 | Through Hole (DIP variant) | Through Hole |
| Technology | CMOS | CMOS |
| 工作溫度 | [DATA_NEEDED: operating temperature range] | 0C to +70C (commercial) |
| RoHS 狀態 | [DATA_NEEDED: RoHS status] | unknown |
| Access Time | — | 120 ns |
| Supply Voltage (VCC) | — | 5 V |
| Programming Voltage (VPP) | — | [DATA_NEEDED: programming voltage VPP] |
| 介面 | — | Parallel |
| Erase Method | — | Ultraviolet light |
| Standby Current | — | [DATA_NEEDED: standby current] |
| Active Current | — | [DATA_NEEDED: active current] |
| 生命週期狀態 | — | Obsolete (legacy product) |