27C512-20FA vs 27C512-25-X Comparison
Detailed side-by-side comparison of 27C512-20FA by NXP Semiconductors 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 | 27C512-20FA | 27C512-25-X |
|---|---|---|
| Brand | NXP Semiconductors | Fujitsu |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Obsolete | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.85 | $2.95 |
| Memory Size | 524,288 bit (512 Kbit) | 512 Kbit (64K x 8) |
| Organization | 64K x 8 | 65,536 words x 8 bits |
| Maximum Access Time | 200 ns | — |
| Supply Voltage Range | 4.5 V to 5.5 V | — |
| Technology | CMOS EPROM | CMOS |
| Memory Type | UV / OTP EPROM (non-volatile) | UV EPROM |
| Temperature Grade | Commercial | — |
| Number of Terminals | 28 | — |
| Package Code | DIP (rectangular) | — |
| Mounting Type | Through Hole | Through Hole |
| Access Mode | Asynchronous | — |
| Output Type | Tri-state, 8-bit parallel | — |
| Address Inputs | A0 to A15 (16-bit address bus) | — |
| Control Signals | /CE (chip enable), /OE (output enable), /PGM | /CE (chip enable), /OE (output enable), /PGM (program) |
| RoHS Status | unknown | unknown (legacy non-RoHS-era part) |
| Operating Supply Nominal | 5 V | — |
| 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 |
| Programming Voltage | — | [DATA_NEEDED: VPP programming voltage] |
| Standby Current | — | [DATA_NEEDED: standby current] |
| Active Current | — | [DATA_NEEDED: active current] |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |
| Package | — | 28-pin DIP (windowed ceramic or plastic OTP variant per suffix) |
| Pinout | — | JEDEC-approved 27C512 pinout |