27C256A-12 vs 27C256A-20 比較
詳細並排比較 27C256A-12 由 NEC 與 27C256A-20 由 Fujitsu. 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 | 27C256A-20 |
|---|---|---|
| 品牌 | NEC | Fujitsu |
| 類別 | Memory ICs | Memory ICs |
| 生命週期狀態 | Obsolete | Obsolete |
| 記憶體類型 | UV EPROM | OTP EPROM (CMOS) |
| Technology | CMOS | CMOS |
| 記憶體容量 | 256 Kbit (32K x 8) | 256 Kbit |
| 組織 | 32K x 8 | 32K x 8 (32768 bytes) |
| Access Time | 120 ns | — |
| Supply Voltage (VCC) | 5 V | — |
| Programming Voltage (VPP) | [DATA_NEEDED: programming voltage VPP] | — |
| 介面 | Parallel | — |
| 工作溫度 | 0C to +70C (commercial) | [DATA_NEEDED: operating temperature range] |
| 封裝 | 28-pin DIP | 28-pin DIP / PLCC (per ordering code) |
| 安裝類型 | Through Hole | Through Hole (DIP variant) |
| Erase Method | Ultraviolet light | — |
| Standby Current | [DATA_NEEDED: standby current] | — |
| Active Current | [DATA_NEEDED: active current] | — |
| RoHS 狀態 | unknown | [DATA_NEEDED: RoHS status] |
| 生命週期狀態 | Obsolete (legacy product) | — |
| 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) |