DS28CM00
I虜C/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 I虜C 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.
FEATURES
Unique, Factory-Lasered and Tested 64-bit
Registration Number (8-bit Family Code + 48-bit
Serial Number + 8-bit CRC)
SMBus-Compatible I虜C Serial Interface
Supports 100kHz and 400kHz Communication
Speeds
5V Tolerant Interface Pins
Operating Range: 1.8V 鹵10% to 5V 鹵5%, -40擄C
to +85擄C
5-Pin SOT23 Package
APPLICATIONS
Printed Circuit Board Unique Serialization
Accessory and Peripheral Identification
Equipment Registration and License Management
Network Node Identification
ORDERING INFORMATION
PART
DS28CM00R-A00+T
TEMP RANGE
-40擄C to +85擄C
PIN-PACKAGE
SOT23-5
Tape-and-Reel
+Denotes lead-free package.
TYPICAL OPERATING CIRCUIT
V
CC
R
P
V
CC
SDA
SCL
R
P
PIN CONFIGURATION
SCL
GND
SDA
1
2
3
4
NC
5
VCC
碌C
GND
V
CC
SDA
SCL
DS28CM00
GND
SOT23
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