27C256L-12TMB vs 27C256A-12 Comparison
Detailed side-by-side comparison of 27C256L-12TMB by STMicroelectronics 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.
STMicroelectronics
27C256L-12TMB - 32Kx8 Military CMOS EPROM 120ns | WSI/ST
27C256L-12TMB ✗ End of Life
Specification Comparison
| Parameter | 27C256L-12TMB | 27C256A-12 |
|---|---|---|
| Brand | STMicroelectronics | NEC |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | End of Life | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $8.25 | $2.52 |
| Memory Size | 256 Kbit | 256 Kbit (32K x 8) |
| Organization | 32K x 8 | 32K x 8 |
| Access Time | 120 ns | 120 ns |
| Supply Voltage (VCC) | 4.5 V to 5.5 V | 5 V |
| Minimum Supply Voltage | 4.5 V | — |
| Technology | CMOS | CMOS |
| Memory Type | UV EPROM | UV EPROM |
| Temperature Grade | Military | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | 0C to +70C (commercial) |
| Package | 28-pin Ceramic Leadless Chip Carrier (CLLCC) | 28-pin DIP |
| Number of Terminals | 28 | — |
| Package Shape | Rectangular | — |
| Address Lines | 15 (A0 to A14) | — |
| Data Outputs | 8, tri-state | — |
| Mounting Type | Surface Mount | Through Hole |
| Programming Voltage (VPP) | [DATA_NEEDED: programming voltage] | [DATA_NEEDED: programming voltage VPP] |
| I/O Level | TTL compatible | — |
| RoHS Status | unknown | unknown |
| Interface | — | Parallel |
| Erase Method | — | Ultraviolet light |
| Standby Current | — | [DATA_NEEDED: standby current] |
| Active Current | — | [DATA_NEEDED: active current] |
| Lifecycle Status | — | Obsolete (legacy product) |