Serial SRAM Features

• Unlimited Reads/Unlimited Writes:

- Standard serial SRAM protocol

- Symmetrical timing for reads and writes

• SRAM Array:

- 65,536 x 8 bit (48L512)

- 131,072 x 8 bit (48LM01)

• High-Speed SPI Interface:

- Up to 66 MHz

- Schmitt Trigger inputs for noise suppression

• Low-Power CMOS Technology:

- Active current: 5 mA (maximum)

- Standby current: 200 μA (at 85°C maximum)

- Hibernate current: 3 μA (at 85°C maximum)

Hidden EEPROM Backup Features

• Cell-Based Nonvolatile Backup:

- Mirrors SRAM array cell-for-cell

- Transfers all data to/from SRAM cells in

parallel (all cells at same time)

• Invisible-to-User Data Transfers:

- VCC level monitored inside device

- SRAM automatically saved on power disrupt

- SRAM automatically restored on VCC return

• 100,000 Backups Minimum (at 85°C)

• 100 Years Retention (at 55°C)

Other Features of the 48L512/48LM01

• Operating Voltage Range: 2.7V-3.6V

• Temperature Ranges:

- Industrial (I): -40°C to +85°C

• ESD Protection: >2,000V