27C256A-12 vs 27C256-120N Comparison
Detailed side-by-side comparison of 27C256A-12 by NEC and 27C256-120N by ASI. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | 27C256A-12 | 27C256-120N |
|---|---|---|
| Brand | NEC | ASI |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Obsolete | End of Life |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.52 | $1.75 |
| Memory Type | UV EPROM | — |
| Technology | CMOS | CMOS EPROM (UV erasable) |
| Memory Size | 256 Kbit (32K x 8) | — |
| Organization | 32K x 8 | — |
| Access Time | 120 ns | 120 ns |
| Supply Voltage (VCC) | 5 V | — |
| Programming Voltage (VPP) | [DATA_NEEDED: programming voltage VPP] | — |
| Interface | Parallel | — |
| Operating Temperature | 0C to +70C (commercial) | [DATA_NEEDED: commercial operating temperature range] |
| Package | 28-pin DIP | 28-pin plastic DIP (DIP-28) |
| Mounting Type | Through Hole | Through Hole |
| Erase Method | Ultraviolet light | Ultraviolet light (quartz window / windowed variant) |
| Standby Current | [DATA_NEEDED: standby current] | 20 uA typical (CMOS standby) |
| Active Current | [DATA_NEEDED: active current] | [DATA_NEEDED: active supply current] |
| RoHS Status | unknown | [DATA_NEEDED: RoHS status] |
| Lifecycle Status | Obsolete (legacy product) | End of Life (per Futurlec) |
| Memory Organization | — | 32K x 8 bit (256 Kbit) |
| Supply Voltage (Read) | — | 5 V +/-10% |
| Programming Method | — | 100% Flashrite programming |
| Pinout | — | JEDEC-approved 27C256 pinout |
| Output Type | — | Parallel, 3-state outputs |
| Control Signals | — | CE, OE, PGM |