Serial EEPROM in 4-ball WLSCP designed for tiny camera modules
STMicroelectronics extends its 4-ball WLCSP Serial EEPROM family with software write-protect feature with now 2 different internally-hard-wired device select codes. Devices such as front and rear camera modules can now have their own 4-pin EEPROM connected on the same bus.
Camera modules for mobile devices follow a path of quick miniaturization while display resolution increases and requires a higher set of parameters to operate efficiently. The 4-ball WLSCP I2C EEPROM family provides a minimal pin count, footprint and thickness, fitting the most stringent hardware design requirements. In addition, thanks to internally-wired device select code options, the EEPROM for rear and front cameras can share the same I2C bus, providing further module design optimization.
The dedicated write-protect instruction locks a quarter, half or full EEPROM memory area and keeps your programmed settings safe. For enhanced security, an irreversible lock feature is also available.
The factory-programmed settings can also be protected when selecting products with the software write-protect instruction. Manufacturing robustness aspects are also covered with an optional back-side coating.