Product Summary

The DS2431P+T 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 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. The DS2431P+T communicates over the single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each device has its own unalterable and unique 64-bit ROM registration number that is factory lasered into the chip. The registration number is used to address the device in a multidrop, 1-Wire net environment.

Parametrics

DS2431P+T absolute maximum ratings: (1)IO Voltage Range to GND: -0.5V to +6V; (2)IO Sink Current: 20mA; (3)Operating Temperature Range: -40℃ to +85℃; (4)Junction Temperature: +150℃; (5)Storage Temperature Range: -55℃ to +125℃; (6)Soldering Temperature: Refer to the IPC/JEDEC J-STD-020 Specification.

Features

DS2431P+T features: (1)1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits; (2)Individual Memory Pages Can Be Permanently Write Protected or Put in EPROM-Emulation Mode("Write to 0"); (3)Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise; (4)IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, Typical); (5)Reads and Writes Over a Wide Voltage Range from 2.8V to 5.25V from -40℃ to +85℃; (6)Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol; (7)Also Available as Automotive Version Meeting AEC-Q100 Grade 1 Qualification Requirements(DS2431-A1).

Diagrams

DS2431P+T block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
DS2431P+T&R
DS2431P+T&R

Maxim Integrated Products

EEPROM 1024-Bit 1-Wire EEPROM

Data Sheet

0-1: $0.94
1-25: $0.70
25-50: $0.68
50-100: $0.58
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
DS2401
DS2401

Maxim Integrated Products

Serial Number Registration

Data Sheet

Negotiable 
DS2401/T&R
DS2401/T&R

Maxim Integrated Products

Serial Number Registration

Data Sheet

Negotiable 
DS2401/T&R/SL
DS2401/T&R/SL

Maxim Integrated Products

Serial Number Registration

Data Sheet

Negotiable 
DS2401+
DS2401+

Maxim Integrated Products

Serial Number Registration Silicon Serial Number

Data Sheet

0-1: $0.98
1-25: $0.66
25-50: $0.48
50-100: $0.47
DS2401+T&R
DS2401+T&R

Maxim Integrated Products

Serial Number Registration Silicon Serial Number

Data Sheet

0-1660: $0.42
1660-2000: $0.42
DS2401AP-02B-06/FUJITSU
DS2401AP-02B-06/FUJITSU

Maxim Integrated Products

Serial Number Registration

Data Sheet

Negotiable