DS28CM00 Datasheet, PDF (1/9 Pages) Maxim Integrated Products – I²C/SMBus Silicon Serial Number

DS28CM00
I²C/SMBus Silicon Serial Number
www.maxim-ic.com
GENERAL DESCRIPTION
The DS28CM00 is a low-cost, electronic registration
number to provide an absolutely unique identity that
can be determined with the industry standard I²C and
SMBus interface. The registration number is a
factory-lasered, 64-bit ROM that includes a unique
48-bit serial number, an 8-bit CRC, and an 8-bit
family code (70h). In SMBus mode, the DS28CM00
resets its communication interface if it detects a bus
fault condition.
APPLICATIONS
Printed Circuit Board Unique Serialization
Accessory and Peripheral Identification
Equipment Registration and License Management
Network Node Identification
FEATURES
ƒ Unique, Factory-Lasered and Tested 64-bit
Registration Number (8-bit Family Code + 48-bit
Serial Number + 8-bit CRC)
ƒ SMBus-Compatible I²C Serial Interface
ƒ Supports 100kHz and 400kHz Communication
Speeds
ƒ 5V Tolerant Interface Pins
ƒ Operating Range: 1.8V ±10% to 5V ±5%, -40°C
to +85°C
ƒ 5-Pin SOT23 Package
ORDERING INFORMATION
PART
TEMP RANGE PIN-PACKAGE
DS28CM00R-A00+T
-40°C to +85°C
SOT23-5
Tape-and-Reel
+Denotes lead-free package.
TYPICAL OPERATING CIRCUIT
VCC
RP
RP
VCC
SDA
SCL
µC
GND
VCC
SDA
SCL
DS28CM00
GND
PIN CONFIGURATION
SCL ¹
5
GND ²
SDA ³
4
SOT23
VCC
NC
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.
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REV: 072406