DS24B33Q+T&R

• 4 Kbit (512-byte) EEPROM array, 16 Pages X 256 Bits
• Serial 1-Wire Interface Requiring Minimal Host Pins
• 2.8 V to 5.25 V Supply Range Covering 3.3 V and 5 V Systems
• 6-Pin TDFN Package with Exposed pad, 0.8 Mm Height
• -40°C to 85°C Operating Temperature Range
• Surface mount, RoHS compliant, Tape and Reel Packaging

The Analog Devices DS24B33Q+T&R is a 4 kbit serial EEPROM with a 1-Wire interface, housed in a 6-pin TDFN package with exposed pad. Its 4 kbit array corresponds to 512 bytes of storage, organized as 16 pages of 256 bits, and it operates from a 2.8 V to 5.25 V supply that spans both 3.3 V and 5 V systems. The DS24B33Q+T&R is a surface-mount, RoHS-compliant part rated for -40°C to 85°C and supplied on tape and reel.

Small serial EEPROMs are used to hold configuration settings, calibration constants, serial numbers, and board identification data that must survive power cycles. A 1-Wire interface is chosen when board space and host pin count are tight, since data and control share a single line, making the DS24B33Q+T&R well suited to cables, modules, sensor heads, battery packs, and daughter cards that need to identify themselves to a host. The 2.8 V to 5.25 V range lets the same part serve mixed-voltage designs without level shifting. Buyers are typically embedded designers and industrial OEMs adding non-volatile identification or configuration storage to a subassembly.