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