27C512-25 vs 27C512-25-X Comparison
Detailed side-by-side comparison of 27C512-25 by Microchip Technology and 27C512-25-X 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 | 27C512-25 | 27C512-25-X |
|---|---|---|
| Brand | Microchip Technology | Fujitsu |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Obsolete | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.20 | $2.95 |
| Memory Organization | 64K x 8 (524,288 bits) | — |
| Memory Type | CMOS EPROM (UV / OTP) | UV EPROM |
| Maximum Access Time | 250 ns | — |
| Supply Voltage (Read Mode) | 5 V +/- 10% | — |
| Standby Current (CMOS) | 20 uA typical | — |
| Operating Mode | Asynchronous | — |
| Output Type | 3-state, common I/O | — |
| Pinout Standard | JEDEC-approved 28-pin | — |
| Package | DIP-28 | 28-pin DIP (windowed ceramic or plastic OTP variant per suffix) |
| Mounting Type | Through Hole | Through Hole |
| Programming Method | High-voltage EPROM programming (Flashrite type) | — |
| Erase Method | UV (windowed variant) or not erasable (OTP variant) | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Access Time Guarantee | Any byte in less than 250 ns | — |
| Technology | CMOS floating gate | CMOS |
| RoHS Status | [DATA_NEEDED: RoHS status] | unknown (legacy non-RoHS-era part) |
| Memory Size | — | 512 Kbit (64K x 8) |
| Organization | — | 65,536 words x 8 bits |
| Access Time | — | 250 ns |
| Supply Voltage (Read) | — | 5 V +/- 10% |
| Interface | — | Parallel |
| Address Lines | — | 15 (A0-A14) |
| Data Lines | — | 8 (D0-D7), 3-state outputs |
| Control Signals | — | /CE (chip enable), /OE (output enable), /PGM (program) |
| Programming Voltage | — | [DATA_NEEDED: VPP programming voltage] |
| Standby Current | — | [DATA_NEEDED: standby current] |
| Active Current | — | [DATA_NEEDED: active current] |
| Pinout | — | JEDEC-approved 27C512 pinout |