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Status
Part Number	Status	Replacement	Explanation
DS2430A	This product is Not Recommended for New Designs. See Ordering Information for recommended replacements.	DS2431	The DS2430A is no longer recommended for new design. We are suggesting the DS2431 1024-Bit 1-Wire EEPROM as a replacement.
DS2430AP	Active: In Production. But some versions of the family are No Longer Available. See Ordering Information.

Data Sheet

FULL DATA SHEET (PDF, 1.6MB) Download   E-Mail

Description

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		Applications/Uses
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 16.3kbits 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 Flip Chip surface mount package Reads and writes over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C		Accessory Identification and Control IEEE 1451.4 Sensor TEDS Medical Sensors PCB Identification

Application Notes

Application Note 74: Reading and Writing 1-Wire® Devices Through Serial Interfaces - DS2430A Application Note 155: 1-Wire® Software Resource Guide Device Description - DS2430A Application Note 2965: 1-Wire® Master Device Configuration - DS2430A Application Note 2966: Minimal Remote 1-Wire® Master Protocol - DS2430A Application Note 3697: Transition Guide: Replacing the DS2430A with the DS2431 - DS2430A Application Note 4002: Understanding Flip-Chip and Chip-Scale Package Technologies and Their Applications - DS2430A

Design Guides

1-Wire® Products (PDF)

Reliability Reports

Reliability Report: DS2430A.pdf Request Reliability Report for: DS2430AP

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-14 of 14

DS2430A	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2430AX-S#T&R			NRND	DS2431	FCHIP;4 pin;4.3 mm² Outline Drawing: 21-0287 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: BF422#1*	-40°C to +85°C	See data sheet
DS2430AX#U			NRND	DS2431	FCHIP;4 pin;4.3 mm² Outline Drawing: 21-0287 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: BF422#1*	-40°C to +85°C	See data sheet
DS2430AX#T&R		N/A	No Longer Available	DS2431	FCHIP;4 pin;4.3 mm² Outline Drawing: 21-0287 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: BF422#1*	-40°C to +85°C	See data sheet
DS2430AX			NRND	DS2431	FCHIP;4 pin;4.3 mm² Outline Drawing: 21-0287 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: BF422-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2430AX-S			NRND	DS2431	FCHIP;4 pin;4.3 mm² Outline Drawing: 21-0287 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: BF422-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2430A-002-E1		N/A	NRND	DS2431	Land Pattern: Not Available	-40°C to +85°C	See data sheet
DS2430A/T&R		N/A	No Longer Available	DS2431	TO92;3 pin;27.6 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2430A		N/A	No Longer Available	DS2431 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 Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2430A+			NRND	DS2431	TO92;3 pin;19.5 mm² Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2430A+T&R			NRND	DS2431	TO92;3 pin;27.6 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2430AP	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2430AP		N/A	No Longer Available		TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2430AP+			Active		TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2430AP+T&R			Active		TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2430AP/T&R		N/A	No Longer Available		TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

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