27C256A-12 vs 27C256L-20R Perbandingan
Perbandingan bersamaan detil 27C256A-12 dari NEC dan 27C256L-20R dari WaferScale Integration. Bandingkan spesifikasi penting, parameter listrik, pengemasan, status cycle, harga, dan ketersediaan untuk menentukan komponen terbaik untuk kebutuhan desain Anda.
Perbandingan Spesifikasi
| Parameter Umum | 27C256A-12 | 27C256L-20R |
|---|---|---|
| Merek | NEC | WaferScale Integration |
| Kategori | Memory ICs | EEPROM |
| Status Lingkungan Hidup | Obsolete | Obsolete |
| Tipe Memori | UV EPROM | CMOS EPROM (UV erasable) |
| Technology | CMOS | — |
| Ukuran Memori | 256 Kbit (32K x 8) | 256 Kilobit |
| Organisasi | 32K x 8 | 32K x 8-bit |
| Access Time | 120 ns | 200 ns (-20 speed grade) |
| Supply Voltage (VCC) | 5 V | — |
| Programming Voltage (VPP) | [DATA_NEEDED: programming voltage VPP] | — |
| Antarmuka | Parallel | — |
| Suhu Kerja | 0C to +70C (commercial) | [DATA_NEEDED: operating temperature range] |
| Paket | 28-pin DIP | 28-pin package (per JEDEC EPROM pinout) |
| Tipe Mounting | Through Hole | Through-Hole |
| Erase Method | Ultraviolet light | Ultraviolet light (UV EPROM) |
| Standby Current | [DATA_NEEDED: standby current] | 20 uA typical (CMOS standby) |
| Active Current | [DATA_NEEDED: active current] | [DATA_NEEDED: active supply current] |
| Status RoHS | unknown | [DATA_NEEDED: RoHS compliance] |
| Status Lingkungan Hidup | Obsolete (legacy product) | — |
| Tegangan Pemuat | — | Single +5 V with +/-10% tolerance |
| 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 |