27C512-10 vs 27C256A-12 Comparison
Detailed side-by-side comparison of 27C512-10 by Texas Instruments and 27C256A-12 by NEC. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
27C512-10 - 512Kbit (64Kx8) 100ns CMOS EPROM | Texas Instruments
27C512-10 ✗ End of LifeSpecification Comparison
| Parameter | 27C512-10 | 27C256A-12 |
|---|---|---|
| Brand | Texas Instruments | NEC |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | End of Life | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.70 | $2.52 |
| Memory Size | 512 Kbit | 256 Kbit (32K x 8) |
| Organization | 64K x 8 | 32K x 8 |
| Memory Type | OTP EPROM (CMOS) | UV EPROM |
| Access Time (Speed Grade -10) | 100 ns | — |
| Supply Voltage (VCC) | +5 V with +/-10% tolerance | 5 V |
| Programming Voltage (VPP) | +12.5 V | [DATA_NEEDED: programming voltage VPP] |
| Standby Current | 20 uA typical (CMOS standby) | [DATA_NEEDED: standby current] |
| Operating Mode | Totally static operation | — |
| Interface | Parallel, TTL compatible | Parallel |
| Address Lines | 15 (A0-A14) | — |
| Data Lines | 8 (Q0-Q7), tri-state outputs | — |
| Control Signals | /E (chip enable), /G (output enable) | — |
| Pinout Standard | JEDEC-approved 28-pin EPROM pinout | — |
| Package | 28-pin DIP | 28-pin DIP |
| Mounting Type | Through Hole | Through Hole |
| Erase Method | One-Time Programmable (not erasable) | Ultraviolet light |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | 0C to +70C (commercial) |
| RoHS Status | unknown | unknown |
| Technology | — | CMOS |
| Access Time | — | 120 ns |
| Active Current | — | [DATA_NEEDED: active current] |
| Lifecycle Status | — | Obsolete (legacy product) |