DS2502-E48
48-Bit Node Address Chip
www.maxim-ic.com
FEATURES
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Factory programmed 48-bit node address
chip with 768 bits user-programmable OTP-
EPROM communicates with the economy of
one signal plus ground
Provides valid MAC-48/EUI-48
ETHERNET address
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
廬
products
Device is an 鈥渁dd-only鈥?memory where
additional data can be programmed into
EPROM without disturbing existing data
Reduces control, address, data, power and
programming signals to a single pin
Directly connects to a single port pin of a
microprocessor and communicates at up to
16.3kbps
Presence detector acknowledges when reader
first applies voltage
Low cost TO-92 or TSOC surface mount
packages
Reads over a wide voltage range of 2.8V to
6.0V from -40擄C to +85擄C; programs at
11.5V to 12.0V from -40擄C to + 50擄C
PIN CONFIGURATION
TO-92
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BOTTOM VIEW
TSOC PACKAGE
TOP VIEW
ORDERING INFORMATION
DS2502-E48
TO-92 package
DS2502P-E48
TSOC package
DS2502P-E48/T&R Tape-and-Reel version of
DS2502P-E48
GLOBAL IDENTIFIER DESCRIPTION
The DS2502-E48 is a variant of the DS2502 1024-bit add-only memory. It differs from the standard
DS2502 in its custom ROM family code 89H, and the UniqueWare Identifier 5E7H in place of the upper
12 bits of the standard ROM serialization field. Otherwise, the electrical and logical behavior is identical
to that of the DS2502. For technical details please refer to the DS2502 data sheet.
1-Wire is a registered trademark of Dallas Semiconductor.
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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