27C256-17 vs 27C256A-12 Comparison
Detailed side-by-side comparison of 27C256-17 by Microchip Technology 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.
Microchip Technology
27C256-17 - 256Kbit UV EPROM 170ns 32Kx8 | Microchip Technology
27C256-17 ObsoleteSpecification Comparison
| Parameter | 27C256-17 | 27C256A-12 |
|---|---|---|
| Brand | Microchip Technology | NEC |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Obsolete | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $2.52 |
| Memory Type | EPROM - UV (windowed) | UV EPROM |
| Memory Size | 256 Kbit | 256 Kbit (32K x 8) |
| Organization | 32K x 8 | 32K x 8 |
| Access Time | 170 ns | 120 ns |
| Interface | Parallel | Parallel |
| Supply Voltage | 4.5 V to 5.5 V | — |
| Technology | CMOS | CMOS |
| Temperature Grade | Commercial | — |
| Package | CDIP-28 (windowed CERDIP, 0.6 inch) | 28-pin DIP |
| Number of Terminals | 28 | — |
| Mounting Type | Through Hole | Through Hole |
| Address Lines | A0 - A14 (15) | — |
| Data Lines | 8-bit bidirectional | — |
| Control Signals | /CE, /OE, VPP | — |
| Erase Method | Ultraviolet light (quartz window) | Ultraviolet light |
| RoHS Status | [DATA_NEEDED: RoHS status] | unknown |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | 0C to +70C (commercial) |
| Supply Voltage (VCC) | — | 5 V |
| Programming Voltage (VPP) | — | [DATA_NEEDED: programming voltage VPP] |
| Standby Current | — | [DATA_NEEDED: standby current] |
| Active Current | — | [DATA_NEEDED: active current] |
| Lifecycle Status | — | Obsolete (legacy product) |