| PartNumber | AT28HC64B-90TI | AT28HC64B-90TA | AT28HC64B-90TC |
| Description | EEPROM 1M 5V SDP - 90NS IND TEMP | IC EEPROM 64K PARALLEL 28TSOP | IC EEPROM 64K PARALLEL 28TSOP |
| Manufacturer | Microchip | - | - |
| Product Category | EEPROM | - | - |
| RoHS | N | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TSOP-28 | - | - |
| Memory Size | 64 kbit | - | - |
| Organization | 8 k x 8 | - | - |
| Interface Type | Serial, 4-Wire, SDI, SPI | - | - |
| Access Time | 55 ns | - | - |
| Data Retention | 10 Year | - | - |
| Supply Current Max | 40 mA | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Series | AT28HC64B | - | - |
| Height | 1 mm | - | - |
| Length | 8 mm | - | - |
| Width | 11.8 mm | - | - |
| Brand | Microchip Technology | - | - |
| Operating Supply Current | 40 mA | - | - |
| Operating Supply Voltage | 2.7 V, 3.6 V | - | - |
| Output Enable Access Time | 40 ns | - | - |
| Product Type | EEPROM | - | - |
| Programming Voltage | 4.5 V to 5.5 V | - | - |
| Factory Pack Quantity | 234 | - | - |
| Subcategory | Memory & Data Storage | - | - |