DS2430A：256-Bit 1-Wire EEPROM _ BDTIC a Leading Distributor in China

DS2430A：256-Bit 1-Wire EEPROM

The DS2430A 256-bit 1-Wire® EEPROM identifies and stores relevant information about the product to which it is associated. This lot or product specific information can be accessed with minimal interface, for example a single port pin of a microcontroller. The DS2430A consists of a factory-lasered registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (14h) plus 256 bits of user-programmable EEPROM and a 64-bit one-time programmable application register. The power to read and write the DS2430A is derived entirely from the 1-Wire communication line. Data is transferred serially via the 1-Wire protocol, which requires only a single data lead and a ground return. The 48-bit serial number that is factory-lasered into each DS2430A provides a guaranteed unique identity that allows for absolute traceability. The TO-92 and TSOC packages provide a compact enclosure that allows standard assembly equipment to handle the device easily for attachment to printed circuit boards or wiring. Typical applications include storage of calibration constants, board identification, and product revision status.

Key Features

256-bit Electrically Erasable Programmable Read Only Memory (EEPROM) plus 64-bit one-time programmable application register
Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC tester) assures absolute identity because no two parts are alike
Built-in multidrop controller ensures compatibility with other MicroLAN products
EEPROM organized as one page of 32 bytes for random access
Reduces control, address, data, and power to a single data pin
Directly connects to a single port pin of a microprocessor and communicates at up to 15.3kbits per second
8-bit family code specifies DS2430A communication requirements to reader
Presence detector acknowledges when reader first applies voltage
Low cost TO-92 or 6-pin TSOC and UCSP surface mount package
Reads and writes over a wide voltage range of 2.8V to 5.25V from -40°C to +85°C

Applications/Uses

Accessory Identification and Control
IEEE 1451.4 Sensor TEDS
Medical Sensors
PCB Identification

DataSheet

title	Download file
DS2430A Data Sheet	DS2430A.pdf

Parametrics

Part Number	Memory Type	Memory Size	Bus Type	V_SUPPLY (V)	V_SUPPLY (V)	Package/Pins	Budgetary Price
Part Number	Memory Type	Memory Size	Bus Type	min	max	Package/Pins	See Notes
DS2430A	EEPROM	32 Bytes	1-Wire	2.8	5.25	FCHIP/4 TO92/3 TSOC/6	$1.22 @1k

Quality and Environmental Data

DS2430A.pdf

Additional Resources

Sensor Calibration

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
DS2430A	No Longer Available	DS2430A+The DS2430A is no longer recommended for new design. We are suggesting the DS2431 1024-Bit 1-Wire EEPROM as a replacement.	TO92,;3 pin;19.5 mm²	-40°C to +85°C	No
DS2430A+	NRND	DS2431	TO92,;3 pin;19.5 mm²	-40°C to +85°C	Lead Free
DS2430A+T&R	NRND	DS2431	TO92,;3 pin;27.6 mm²	-40°C to +85°C	Lead Free
DS2430A/T&R	No Longer Available		TO92,;3 pin;27.6 mm²	-40°C to +85°C	No
DS2430AP+	Active		TSOC,;6 pin;17.8 mm²	-40°C to +85°C	Lead Free
DS2430AP+T&R	Active		TSOC,;6 pin;17.8 mm²	-40°C to +85°C	Lead Free
DS2430AX#T&R	No Longer Available		FCHIP,;4 pin;4.3 mm²	-40°C to +85°C