DS2432_12 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – 1Kb Protected 1-Wire EEPROM with SHA-1 Engine

ABRIDGED DATA SHEET
219-0003; Rev 3/12
DS2432
1Kb Protected 1-Wire EEPROM with SHA-1 Engine
FEATURES
 1128 Bits of 5V EEPROM Memory
Partitioned Into Four Pages of 256 Bits, a
64-Bit Write-Only Secret, and Up to Five
General-Purpose Read/Write Registers
 On-Chip 512-Bit ISO/IEC 10118-3 SHA-1
Engine to Compute 160-Bit Message
Authentication Codes (MACs) and to
Generate Secrets
 Write Access Requires Knowledge of the
Secret and the Capability of Computing and
Transmitting a 160-Bit MAC as
Authorization
 Secret and Data Memory Can Be Write
Protected (All or Page 0 Only) or Put in
EPROM-Emulation Mode (“Write to 0”,
Page 1)
 Unique, Factory-Lasered and Tested 64-Bit
Registration Number Assures Absolute
Traceability Because No Two Parts Are Alike
 Built-In Multidrop Controller Ensures
Compatibility with Other 1-Wire^® Net
Products
 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
15.3kbps
 Overdrive Mode Boosts Communication
Speed to 125kbps
 Low-Cost 6-Lead TSOC Surface-Mount
Package or Solder-Bumped UCSP™ Package
 Reads and Writes Over a Wide Voltage
Range of 2.8V to 5.25V from -40°C to +85°C
1-Wire is a registered trademark of Maxim Integrated Products, Inc.
PIN CONFIGURATIONS
TOP VIEW
GND 1
1-Wire 2
NC 3
TSOC
(150 mils)
6 NC
5 NC
4 NC
A1 MARK
UCSP
(TOP VIEW WITH LASER
A
DS2432
MARK, CONTACTS NOT
VISIBLE)
B
yywwrr
A2 = 1-WIRE
C
###xx
A3 = GND
ALL OTHER BUMPS: NC
1234
yywwrr = DATE/REVISION
###xx = LOT NUMBER
REFER TO THE PACKAGE RELIABILITY REPORT FOR
IMPORTANT GUIDELINES ON QUALIFIED USAGE CONDITIONS.
ORDERING INFORMATION
PART
TEMP
RANGE
PIN-
PACKAGE
DS2432P+
-40°C to +85°C 6 TSOC
DS2432P+T&R -40°C to +85°C 6 TSOC
DS2432X-S+
-40°C to +85°C
8 UCSP (2.5k
pcs, T&R)
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
Request Full Data Sheet at:
www.maxim-ic.com/fullds/DS2432
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