27C256L-20R vs 27C256A-12 比較
詳細並排比較 27C256L-20R 由 WaferScale Integration 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 | 27C256L-20R | 27C256A-12 |
|---|---|---|
| 品牌 | WaferScale Integration | NEC |
| 類別 | EEPROM | Memory ICs |
| 生命週期狀態 | Obsolete | Obsolete |
| 記憶體容量 | 256 Kilobit | 256 Kbit (32K x 8) |
| 組織 | 32K x 8-bit | 32K x 8 |
| 記憶體類型 | CMOS EPROM (UV erasable) | UV EPROM |
| Access Time | 200 ns (-20 speed grade) | 120 ns |
| 供應電壓 | Single +5 V with +/-10% tolerance | — |
| Standby Current | 20 uA typical (CMOS standby) | [DATA_NEEDED: standby current] |
| Active Current | [DATA_NEEDED: active supply current] | [DATA_NEEDED: active current] |
| Programming Scheme | 100% Flashrite programming | — |
| Pinout | JEDEC-approved 28-pin pinout | — |
| Address Lines | A0 to A14 (15 lines) | — |
| Data Lines | O0 to O7 (8 lines) | — |
| Control Signals | CE, OE, PGM/VPP | — |
| 工作溫度 | [DATA_NEEDED: operating temperature range] | 0C to +70C (commercial) |
| 封裝 | 28-pin package (per JEDEC EPROM pinout) | 28-pin DIP |
| 安裝類型 | Through-Hole | Through Hole |
| RoHS 狀態 | [DATA_NEEDED: RoHS compliance] | unknown |
| Erase Method | Ultraviolet light (UV EPROM) | Ultraviolet light |
| Technology | — | CMOS |
| Supply Voltage (VCC) | — | 5 V |
| Programming Voltage (VPP) | — | [DATA_NEEDED: programming voltage VPP] |
| 介面 | — | Parallel |
| 生命週期狀態 | — | Obsolete (legacy product) |