DS2431Q+U Maxim Integrated Products, DS2431Q+U Datasheet

DS2431Q+U

Manufacturer Part Number

DS2431Q+U

Description

Manufacturer

Maxim Integrated Products

Datasheet

1.DS2431PT-R.pdf (24 pages)

Specifications of DS2431Q+U

Pack_quantity

Comm_code

85423275

Lead_time

Current page: 1 of 24
Download datasheet (337Kb)

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

GENERAL DESCRIPTION

The DS2431 is a 1024-bit, 1-Wire

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

conductor 1-Wire bus. The communication follows

the standard Dallas Semiconductor 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.

APPLICATIONS

PIN CONFIGURATION

www.maxim-ic.com

See

* Refer to package reliability report for important

guidelines on qualified usage conditions.

TO-92

Accessory/PC Board Identification

Medical Sensor Calibration Data Storage

Analog Sensor Calibration Including IEEE-

P1451.4 Smart Sensors

Ink and Toner Print Cartridge Identification

After-Market Management of Consumables

56-G7007-001

DS2431

communicates

µCSP*, Top View with Laser

Mark, Contacts Not Visible.

for package outline.

rrd###xx

1 2 3

DS2431

TSOC, TO-92 pinout:

Pin 1 -------------

Pin 2 -------------

All other pins --

A1 Mark

TSOC, Top View

A3 = IO

C3 = GND

All other bumps: NC

rrd = Revision/Date

###xx = Lot Number

over

EEPROM chip

GND

the

single-

1 of 24

FEATURES

TYPICAL OPERATING CIRCUIT

Ordering information and pin configuration are

continued on page 24.

ORDERING INFORMATION

Commands, Registers, and Modes are capitalized for

clarity.

1-Wire is a registered trademark of Dallas Semiconductor Corp.

DS2431+

DS2431+T&R

DS2431P+

DS2431P+T&R

1024 Bits of EEPROM Memory Partitioned into

Four Pages of 256 Bits

Individual Memory Pages can be Permanently

Write Protected or Put in EPROM-Emulation

Mode ("Write to 0")

Switchpoint Hysteresis and Filtering to Optimize

Performance in the Presence of Noise

IEC 1000-4-2 Level 4 ESD Protection (8kV

Contact, 15kV Air, typical)

Reads and Writes Over a Wide Voltage Range of

2.8V to 5.25V from -40°C to +85°C

Communicates to Host with a Single Digital

Signal at 15.4kbps or 125kbps Using 1-Wire

Protocol

Also Available as Automotive Version Meeting

AEC-Q100 Grade 1 Qualification Requirements

(DS2431-A1)

1024-Bit 1-Wire EEPROM

PART

µC

-40°C to +85°C

TEMP RANGE

PUP

PIN-PACKAGE

TO-92

TO-92, tape-and-

reel

TSOC

TSOC, tape-and-

reel

I/O

DS2431

GND

REV: 102207

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