AT24C16C-SSHM-T

• 16kb Density Providing 2kB of Non-Volatile EEPROM Storage
• Two-Wire I2C Interface Running at Up to 1M Hz
• 450ns Access Time with 3mA Nominal Supply Current
• Wide 1.7V to 5.5V Supply Range Covering 1.8V Through 5V Systems
• AEC-Q100 Automotive Qualification per the Product Title
• 8-Pin Surface-Mount SOIC on Tape and reel, -40 to 85 Degrees C, RoHS Compliant

The Microchip AT24C16C-SSHM-T is a 16kb serial EEPROM providing 2kB of non-volatile storage over a two-wire I2C interface, and its product title identifies it as an AEC-Q100 automotive part. It runs at up to 1M Hz with a 450ns access time and draws 3mA nominal supply current. The AT24C16C-SSHM-T operates from a wide 1.7V to 5.5V supply, so it works directly on 1.8V, 2.5V, 3.3V and 5V buses without level translation. Microchip supplies it in an 8-pin surface-mount SOIC with a 1.75mm height on tape and reel, rated for -40 to 85 degrees C, lead free and RoHS compliant.

Serial EEPROM holds the small amount of data that must survive a power cycle and be rewritten freely, which is a different job from firmware storage in flash: calibration constants, board serial numbers and revision codes, user and configuration settings, fault and event logs, run-hour counters and module identification data. The AT24C16C-SSHM-T carries an AEC-Q100 qualification, so it is specified into vehicle electronics where a non-qualified part cannot be used: body control and lighting modules, sensor and actuator assemblies, infotainment subsystems and battery management boards. Only two pins are needed for the bus, and the 1.7V to 5.5V range means the same part serves both low-voltage and legacy 5V microcontrollers. Buyers are automotive tier-one suppliers plus industrial and medical OEMs that adopt automotive-qualified components for reliability reasons.