The AT68166HT-YS18-E is a 68Mbit asynchronous SRAM module with a 4Mx4 organization. It operates at a typical supply voltage of 3.3V and a maximum operating current of 170mA. The module is packaged in a 68-pin MQFP-T QFP package with a seated plane height of 4.7mm. It is designed for surface mount applications and has a maximum access time of 18ns.
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| Package Family Name | QFP |
| Package/Case | MQFP-T |
| Pin Count | 68 |
| PCB | 68 |
| Package Length (mm) | 64.14(Max) |
| Package Width (mm) | 64.14(Max) |
| Package Height (mm) | 4.7(Max) |
| Seated Plane Height (mm) | 4.7(Max) |
| Pin Pitch (mm) | 1.27 |
| Mounting | Surface Mount |
| Main Category | SRAM Module |
| Total Density | 16Mbit |
| Maximum Access Time | 18ns |
| Chip Density | 4Mbit |
| Subcategory | Asynchronous |
| Data Bus Width | 4bit |
| Number of Chip per Module | 4 |
| Organization | 4Mx4 |
| Chip Package Type | 68-MQFPT |
| Typical Operating Supply Voltage | 3.3V |
| Maximum Operating Current | 170mA |
| Min Operating Supply Voltage | 3V |
| Max Operating Supply Voltage | 3.6V |
| Cage Code | 60991 |
| HTS Code | 8473301140 |
| Schedule B | 8473300002 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | Yes |
| Dose Level | 300 |
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