256K-bit asynchronous SRAM chip, organized as 32K words by 8 bits, features a maximum access time of 55 ns. This single-port memory component operates with a typical supply voltage of 5V, ranging from 4.5V to 5.5V. Housed in a 28-pin SOP (Small Outline Package) with gull-wing leads, it is designed for surface mounting and conforms to JEDEC MO-091BA standards. The plastic package measures 18.49mm (Max) in length, 8.79mm (Max) in width, and 2.78mm (Max) in height, with a 1.27mm pin pitch. Operating current is a maximum of 8 mA, within a temperature range of 0°C to 70°C.
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SK Hynix HY62256BLJ-55 technical specifications.
| Basic Package Type | Lead-Frame SMT |
| Package Family Name | SOP |
| Package/Case | SOP |
| Package Description | Plastic Small Outline Package |
| Lead Shape | Gull-wing |
| Pin Count | 28 |
| PCB | 28 |
| Package Length (mm) | 18.49(Max) |
| Package Width (mm) | 8.79(Max) |
| Package Height (mm) | 2.78(Max) |
| Seated Plane Height (mm) | 2.79(Max) |
| Pin Pitch (mm) | 1.27 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Jedec | MO-091BA |
| Density | 256Kbit |
| Address Bus Width | 15bit |
| Maximum Access Time | 55ns |
| Timing Type | Asynchronous |
| Density in Bits | 262144bit |
| Maximum Operating Current | 8mA |
| Typical Operating Supply Voltage | 5V |
| Number of Bits per Word | 8bit |
| Number of Ports | 1 |
| Number of Words | 32K |
| Min Operating Supply Voltage | 4.5V |
| Max Operating Supply Voltage | 5.5V |
| Min Operating Temperature | 0°C |
| Max Operating Temperature | 70°C |
| Cage Code | 9162F |
| HTS Code | 8542320041 |
| Schedule B | 8542320040 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | No |
| RoHS Versions | 2002/95/EC |
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