256K-bit Serial-SPI EEPROM memory, 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 device features an 8-pin SOIC N package with gull-wing leads, a 1.27mm pin pitch, and a maximum package height of 1.48mm. It offers 100 years of data retention, hardware data protection, and operates within a temperature range of -40°C to 85°C.
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Microchip AT25256B-SSHL-T technical specifications.
| Basic Package Type | Lead-Frame SMT |
| Package Family Name | SOP |
| Package/Case | SOIC N |
| Package Description | Small Outline IC Narrow Body |
| Lead Shape | Gull-wing |
| Pin Count | 8 |
| PCB | 8 |
| Package Length (mm) | 4.98(Max) |
| Package Width (mm) | 3.99(Max) |
| Package Height (mm) | 1.48(Max) |
| Seated Plane Height (mm) | 1.73(Max) |
| Pin Pitch (mm) | 1.27 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Jedec | MS-012AA |
| 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 | 8542320051 |
| Schedule B | 8542310000 |
| ECCN | EAR99 |
| Automotive | Yes |
| AEC Qualified | Yes |
| Radiation Hardening | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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