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