27C256A-12 vs 27C256A-20 Comparison
Detailed side-by-side comparison of 27C256A-12 by NEC and 27C256A-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 | 27C256A-20 |
|---|---|---|
| Brand | NEC | Fujitsu |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Obsolete | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.52 | $8.20 |
| Memory Type | UV EPROM | OTP EPROM (CMOS) |
| Technology | CMOS | CMOS |
| Memory Size | 256 Kbit (32K x 8) | 256 Kbit |
| Organization | 32K x 8 | 32K x 8 (32768 bytes) |
| Access Time | 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: operating temperature range] |
| Package | 28-pin DIP | 28-pin DIP / PLCC (per ordering code) |
| Mounting Type | Through Hole | Through Hole (DIP variant) |
| Erase Method | Ultraviolet light | — |
| Standby Current | [DATA_NEEDED: standby current] | — |
| Active Current | [DATA_NEEDED: active current] | — |
| RoHS Status | unknown | [DATA_NEEDED: RoHS status] |
| Lifecycle Status | Obsolete (legacy product) | — |
| Maximum Access Time | — | 200 ns (-20 speed grade) |
| Supply Voltage | — | 5 V single supply |
| Address Lines | — | A0 to A14 (15 lines) |
| Data Lines | — | O0 to O7 (8-bit, tri-state) |
| Control Signals | — | CE, OE, PGM |
| Standby Mode | — | Static standby (low-power deselect) |
| Programming Method | — | Fast single address location programming |
| Output Compatibility | — | TTL-compatible |
| Erasability | — | One-Time Programmable (no window) |