27C256A-20 vs 27C256A-12 Comparison
Detailed side-by-side comparison of 27C256A-20 by Fujitsu 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 | 27C256A-20 | 27C256A-12 |
|---|---|---|
| Brand | Fujitsu | NEC |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Obsolete | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $8.20 | $2.52 |
| Memory Size | 256 Kbit | 256 Kbit (32K x 8) |
| Organization | 32K x 8 (32768 bytes) | 32K x 8 |
| Memory Type | OTP EPROM (CMOS) | UV EPROM |
| 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) | — |
| Package | 28-pin DIP / PLCC (per ordering code) | 28-pin DIP |
| Mounting Type | Through Hole (DIP variant) | Through Hole |
| Technology | CMOS | CMOS |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | 0C to +70C (commercial) |
| RoHS Status | [DATA_NEEDED: RoHS status] | unknown |
| Access Time | — | 120 ns |
| Supply Voltage (VCC) | — | 5 V |
| Programming Voltage (VPP) | — | [DATA_NEEDED: programming voltage VPP] |
| Interface | — | Parallel |
| Erase Method | — | Ultraviolet light |
| Standby Current | — | [DATA_NEEDED: standby current] |
| Active Current | — | [DATA_NEEDED: active current] |
| Lifecycle Status | — | Obsolete (legacy product) |