64K-bit UV EPROM, organized as 8K x 8, offers a maximum access time of 45 ns. This integrated circuit features a parallel interface and operates with a typical supply voltage of 5 V, ranging from 4.5 V to 5.5 V. Housed in a 24-pin windowed ceramic dual in-line package (CDIP) for through-hole mounting, it supports in-system and external reprogramming via UV light. The component operates across a wide temperature range of -55 °C to 125 °C.
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Microchip AT27HC641-45DM technical specifications.
| Basic Package Type | Through Hole |
| Package Family Name | DIP |
| Package/Case | Windowed CDIP |
| Package Description | Windowed Ceramic Dual In Line Package |
| Lead Shape | Through Hole |
| Pin Count | 24 |
| PCB | 24 |
| Package Length (mm) | 32.8(Max) |
| Package Width (mm) | 15.5(Max) |
| Package Height (mm) | 4.2(Max) |
| Seated Plane Height (mm) | 5.72(Max) |
| Pin Pitch (mm) | 2.79(Max) |
| Package Material | Ceramic |
| Mounting | Through Hole |
| Density | 64Kbit |
| Maximum Access Time | 45ns |
| Interface Type | Parallel |
| Maximum Operating Current | 90mA |
| Organization | 8Kx8 |
| Reprogramming Technique | UV |
| Typical Operating Supply Voltage | 5V |
| In-System Programmability | In System|External |
| Density in Bits | 65536bit |
| Max Operating Supply Voltage | 5.5V |
| Min Operating Supply Voltage | 4.5V |
| Min Operating Temperature | -55°C |
| Max Operating Temperature | 125°C |
| Cage Code | 60991 |
| HTS Code | 8542320061 |
| Schedule B | 8542320060 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | No |
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