QN24C02

QN24C02 is a 2048-bit serial EEPROM. The device is an I²C-compatible serial EEPROM designed to operate over a voltage range of 1.7V ~ 5.5V, with a maximum transfer rate of 1MHz and an operating temperature range of -40℃ ~ +105℃. The device integrates a write-protect pin for hardware write protection of the entire memory array. It also supports software write protection, allowing users to write-protect the entire memory array. The memory array is organized as 16 pages of 16 bytes each, totaling 256×8 bits. The device provides an additional 16-byte identification page for storing sensitive application parameters. Once data is written to the identification page, it can be permanently locked in read-only mode. The device also features a separate memory block containing a factory-programmed 128-bit identifier, accessible via a dedicated read command. QN24C02 is available in lead-free, RoHS-compliant packages: DIP-8, SOP-8, MSOP-8, DFN-8, and SOT23-5.

Applications

• Infotainment systems
• Advanced driver assistance systems (ADAS)
• Body electronics systems
• In-vehicle network systems
• Powertrain systems

Key features

• Operating voltage range: 1.7V ~ 5.5V
• Compatible with 2-wire serial interface I²C
• Compatible with 400kHz and high-speed 1MHz transfer rates
• Byte and page (up to 16 bytes) write modes
• Partial page write supported
• Self-timed write cycle (3ms max)
• Additional 16-byte lockable write page and 128-bit identifier
• Hardware and software write protection for entire memory array
• Schmitt trigger, filtered inputs for noise suppression
• High reliability
• Endurance: 2,000,000 write cycles
• Data retention: 200 years
• ESD protection (Human Body Model): 5000V
• Low operating current
• Write current: 0.5mA (max)
• Read current: 0.5mA (max)
• Standby current: 1μA (max)
• Operating temperature range: -40℃ ~ +105℃
• Green package options (RoHS compliant, lead-free/halogen-free)
• DIP-8/SOP-8/MSOP-8/TSSOP-8/DFN-8/SOT23-5