27C256A-12 vs 27C256L-20R Ikinahambing
Detalyadong pagkakahiwalay na pagkakahambing ng 27C256A-12 sa pamamagitan ng NEC at 27C256L-20R sa pamamagitan ng WaferScale Integration. Ikinahambing ang mga pangunahing paglalarawan, mga tama ng elektriko, paakay, kalagayan ng buhay, presyo, at pagkakaroon upang makita ang pinakamahusay na komponente para sa iyong mga kinakailangang pang disenyo.
Pagsanggunian na paghahambing
| Parametro | 27C256A-12 | 27C256L-20R |
|---|---|---|
| Brand | NEC | WaferScale Integration |
| Kategorya | Memory ICs | EEPROM |
| Katayuan ng Lifecycle | Obsolete | Obsolete |
| Uri ng Memory | UV EPROM | CMOS EPROM (UV erasable) |
| Technology | CMOS | — |
| Laki ng Memory | 256 Kbit (32K x 8) | 256 Kilobit |
| Organisasyon | 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] | — |
| Interface | Parallel | — |
| Temperature na Operasyon | 0C to +70C (commercial) | [DATA_NEEDED: operating temperature range] |
| Packhaging | 28-pin DIP | 28-pin package (per JEDEC EPROM pinout) |
| Uri ng Pagpapasok | 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] |
| Tindminan RoHS | unknown | [DATA_NEEDED: RoHS compliance] |
| Katayuan ng Lifecycle | Obsolete (legacy product) | — |
| Volte ng Pagbibigay | — | 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 |