| TYPE | DESCRIPTION |
| Factory Lead Time | 14 Weeks |
| Contact Plating | Tin |
| Mount | Surface Mount |
| Mounting Type | Surface Mount |
| Package / Case | 28-TSSOP (0.465, 11.80mm Width) |
| Number of Pins | 28 |
| Operating Temperature | -40°C~85°C TC |
| Packaging | Tray |
| Published | 1997 |
| JESD-609 Code | e3 |
| Pbfree Code | yes |
| Part Status | Active |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Number of Terminations | 28 |
| Additional Feature | AUTOMATIC WRITE |
| Technology | CMOS |
| Voltage - Supply | 4.5V~5.5V |
| Terminal Position | DUAL |
| Peak Reflow Temperature (Cel) | 260 |
| Number of Functions | 1 |
| Supply Voltage | 5V |
| Terminal Pitch | 0.55mm |
| Frequency | 150GHz |
| [email protected] Reflow Temperature-Max (s) | 40 |
| Base Part Number | AT28C256 |
| Qualification Status | Not Qualified |
| Operating Supply Voltage | 5V |
| Power Supplies | 5V |
| Memory Size | 256Kb 32K x 8 |
| Nominal Supply Current | 50mA |
| Memory Type | Non-Volatile |
| Operating Mode | ASYNCHRONOUS |
| Access Time | 150ns |
| Memory Format | EEPROM |
| Memory Interface | Parallel |
| Organization | 32KX8 |
| Output Characteristics | 3-STATE |
| Memory Width | 8 |
| Write Cycle Time - Word, Page | 10ms |
| Density | 256 kb |
| Standby Current-Max | 0.0002A |
| Screening Level | MIL-STD-883 |
| Programming Voltage | 5V |
| Endurance | 100000 Write/Erase Cycles |
| Write Cycle Time-Max (tWC) | 10ms |
| Data Polling | YES |
| Toggle Bit | YES |
| Command User Interface | NO |
| Page Size | 64words |
| Height Seated (Max) | 1.2mm |
| Length | 11.8mm |
| Width | 8mm |
| RoHS Status | ROHS3 Compliant |
| Lead Free | Lead Free |
