27C512-15FA vs 27C512-25-X Comparison
Detailed side-by-side comparison of 27C512-15FA by ASI 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 | 27C512-15FA | 27C512-25-X |
|---|---|---|
| Brand | ASI | Fujitsu |
| Category | EEPROM | Memory ICs |
| Lifecycle Status | Active | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.65 | $2.95 |
| Memory Size | 512 Kbit (64K x 8) | 512 Kbit (64K x 8) |
| Organization | 65,536 x 8 bit | 65,536 words x 8 bits |
| Memory Type | CMOS UV EPROM (UVPROM) | UV EPROM |
| Access Time | 150 ns | 250 ns |
| Supply Voltage | 5 V (typical operating) | — |
| Package | CDIP-28 (ceramic DIP, 0.600 in / 15.24 mm, UV window) | 28-pin DIP (windowed ceramic or plastic OTP variant per suffix) |
| Number of Terminals | 28 | — |
| Technology | CMOS | CMOS |
| Mounting Type | Through Hole | Through Hole |
| Temperature Grade | Commercial | — |
| Erase Method | Ultraviolet light (quartz window) | — |
| Programming Method | Standard EPROM programmer (elevated VPP) | — |
| Interface Type | Parallel | — |
| Lead Free Status / RoHS Status | [DATA_NEEDED: RoHS status] | — |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | — |
| Standby Current | [DATA_NEEDED: standby current] | [DATA_NEEDED: standby current] |
| 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] |
| Active Current | — | [DATA_NEEDED: active current] |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |
| Pinout | — | JEDEC-approved 27C512 pinout |
| RoHS Status | — | unknown (legacy non-RoHS-era part) |