27C512-20 vs 27C512QC-55 Comparison
Detailed side-by-side comparison of 27C512-20 by Fujitsu and 27C512QC-55 by Macronix. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | 27C512-20 | 27C512QC-55 |
|---|---|---|
| Brand | Fujitsu | Macronix |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Obsolete | End of Life |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.10 | $4.22 |
| Memory Type | UV EPROM | CMOS UV EPROM |
| Technology | CMOS | — |
| Density | 512 Kbit (524,288 bits) | — |
| Organization | 64K x 8 | — |
| Maximum Access Time | 200 ns | — |
| Supply Voltage (VCC) | 5 V | — |
| Outputs | 3-state | — |
| Operation | Asynchronous | Totally static |
| Package | CQCC32 / LCC32 (ceramic, UV window) | 28-pin ceramic DIP with quartz window (QC) |
| Mounting Type | Surface Mount | Through Hole |
| Erase Method | Ultraviolet light | Ultraviolet light through quartz window |
| Interface | Parallel | — |
| Word Size | 8 bit | — |
| Address Count | 65,536 words | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Standby Current | [DATA_NEEDED: standby current] | [DATA_NEEDED: standby current] |
| Programming Voltage (VPP) | [DATA_NEEDED: VPP voltage] | +12.5 V |
| Memory Organization | — | 512K-bit (64K x 8) |
| Access Time | — | 55 ns |
| Supply Voltage (Read) | — | Single +5 V |
| Family Speed Grades | — | 45/55/70/90/100/120/150 ns |
| Interface Compatibility | — | Completely TTL compatible |
| Address Bus | — | A0 to A14 (15 lines) |
| Data Bus | — | D0 to D7 (8 lines, bidirectional 3-state) |
| RoHS Status | — | [DATA_NEEDED: RoHS status] |