27C256A-12 vs 27C512-20 Comparison
Detailed side-by-side comparison of 27C256A-12 by NEC and 27C512-20 by Fujitsu. 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 | 27C512-20 |
|---|---|---|
| Brand | NEC | Fujitsu |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Obsolete | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.52 | $4.10 |
| Memory Type | UV EPROM | UV EPROM |
| Technology | CMOS | CMOS |
| Memory Size | 256 Kbit (32K x 8) | — |
| Organization | 32K x 8 | 64K x 8 |
| Access Time | 120 ns | — |
| Supply Voltage (VCC) | 5 V | 5 V |
| Programming Voltage (VPP) | [DATA_NEEDED: programming voltage VPP] | [DATA_NEEDED: VPP voltage] |
| Interface | Parallel | Parallel |
| Operating Temperature | 0C to +70C (commercial) | [DATA_NEEDED: operating temperature range] |
| Package | 28-pin DIP | CQCC32 / LCC32 (ceramic, UV window) |
| Mounting Type | Through Hole | Surface Mount |
| Erase Method | Ultraviolet light | Ultraviolet light |
| Standby Current | [DATA_NEEDED: standby current] | [DATA_NEEDED: standby current] |
| Active Current | [DATA_NEEDED: active current] | — |
| RoHS Status | unknown | — |
| Lifecycle Status | Obsolete (legacy product) | — |
| Density | — | 512 Kbit (524,288 bits) |
| Maximum Access Time | — | 200 ns |
| Outputs | — | 3-state |
| Operation | — | Asynchronous |
| Word Size | — | 8 bit |
| Address Count | — | 65,536 words |