256K-bit Serial SPI EEPROM memory IC, organized as 32K x 8, supports 2.5V, 3.3V, and 5V operation with a maximum operating frequency of 20 MHz and 80 ns access time. This surface-mount component features an 8-pin VFBGA package with a 3.73mm x 2.35mm x 0.71mm footprint, offering 100 years of data retention and hardware data protection. It operates within a 1.8V to 5.5V supply range and a temperature range of -40°C to 85°C.
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Microchip AT25256B-CUL-T technical specifications.
| Basic Package Type | Ball Grid Array |
| Package Family Name | BGA |
| Package/Case | VFBGA |
| Package Description | Very Thin Fine Pitch Ball Grid Array |
| Lead Shape | Ball |
| Pin Count | 8 |
| PCB | 8 |
| Package Length (mm) | 3.73 |
| Package Width (mm) | 2.35 |
| Package Height (mm) | 0.71 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Density | 256Kbit |
| Interface Type | Serial-SPI |
| Maximum Operating Frequency | 20MHz |
| Maximum Access Time | 80ns |
| Organization | 32Kx8 |
| Maximum Operating Current | 10mA |
| Typical Operating Supply Voltage | 2.5|3.3|5V |
| Density in Bits | 262144bit |
| Data Retention | 100(Min)Year |
| Hardware Data Protection | Yes |
| Max Operating Supply Voltage | 5.5V |
| Min Operating Supply Voltage | 1.8V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 85°C |
| Cage Code | 60991 |
| EU RoHS | Yes |
| HTS Code | 8542310001 |
| Schedule B | 8542310000 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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