DS28E07：1024-Bit, 1-Wire EEPROM _ BDTIC a Leading Distributor in China

DS28E07：1024-Bit, 1-Wire EEPROM

1Kb Serial EEPROM Operates from Single-Contact 1-Wire Interface

The DS28E07 is a 1024-bit, 1-Wire® EEPROM chip organized as four memory pages of 256 bits each. Data is written to an 8-byte scratchpad, verified, and then copied to the EEPROM memory. As a special feature, the four user memory pages can individually be write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. Each device has its own guaranteed unique 64-bit ROM identification number (ROM ID) that is factory programmed into the chip. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multiple-device 1-Wire network.

Key Features

Partitioning of Memory Provides Greater Flexibility in Programming User Data
- 1024 Bits of EEPROM Memory Organized as Four Pages of 256 Bits
- Individual Memory Pages Can Be Permanently Write Protected or Put in EPROM-Emulation Mode (Write to 0)
Advanced 1-Wire Protocol Minimizes Interface to Just Single IO Reducing Required Pin Count and Enhancing Reliability
- Unique Factory-Programmed, Unalterable 64-Bit Identification Number
- Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise
- Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol
- Reads and Writes over a Wide Voltage Range from 3.0V to 5.25V from -40°C to +85°C
- ±8kV HBM ESD Protection (typ) for IO Pin

DS28E07: Block Diagram

Applications/Uses

Accessory/PCB Identification
After-Market Management of Consumables
Analog Sensor Calibration Including IEEE P1451.4 Smart Sensors
Ink and Toner Print Cartridge Identification
Medical Sensor Calibration Data Storage

DataSheet

title	Download file
DS28E07 Data Sheet	DS28E07.pdf

Parametrics

Part Number	Applications	Memory Type	Memory Size	Bus Type	V_SUPPLY (V)	V_SUPPLY (V)	Package/Pins	Budgetary Price
Part Number	Applications	Memory Type	Memory Size	Bus Type	min	max	Package/Pins	See Notes
DS28E07	Asset Tracking Inventory Medical Consumable ID PCB ID and Authentication Peripheral ID and Control Print Cartridge Authentication Rack Card ID Security	EEPROM	1K x 1	1-Wire	3	5.25	TDFN-EP/6 TO92/3 TSOC/6	$0.55 @1k

Ordering Information

Part Number	Status	Package	Temp	RoHS
DS28E07+	Active	TO92,;3 pin;19.5 mm²	-40°C to +85°C	Lead Free
DS28E07+T	Active	TO92,;3 pin;27.6 mm²	-40°C to +85°C	Lead Free
DS28E07P+	Active	TSOC,;6 pin;17.8 mm²	-40°C to +85°C	Lead Free
DS28E07P+T	Active	TSOC,;6 pin;17.8 mm²	-40°C to +85°C	Lead Free
DS28E07Q+T	Active	TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	Lead Free

DS28E07.pdf DS28E07