256K-bit asynchronous SRAM chip, organized as 32K words by 8 bits, features an 85ns maximum access time. This surface-mount component utilizes a 28-pin Reverse Thin Small Outline Package (RTSOP-I) with a 0.55mm pin pitch. Operating from a 5V supply voltage (4.5V to 5.5V range), it offers a maximum operating current of 8mA and functions within a 0°C to 70°C temperature range.
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SK Hynix HY62256BR1-85 technical specifications.
| Basic Package Type | Lead-Frame SMT |
| Package Family Name | SOP |
| Package/Case | RTSOP-I |
| Package Description | Reverse Thin Small Outline Package (Type I) |
| Pin Count | 28 |
| PCB | 28 |
| Package Length (mm) | 8.1(Max) |
| Package Width (mm) | 11.9(Max) |
| Package Height (mm) | 1.02(Max) |
| Seated Plane Height (mm) | 1.22(Max) |
| Pin Pitch (mm) | 0.55 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Density | 256Kbit |
| Address Bus Width | 15bit |
| Maximum Access Time | 85ns |
| 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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