ds2502p-e48/t Maxim Integrated Products, Inc., ds2502p-e48/t Datasheet
ds2502p-e48/t
Manufacturer Part Number
ds2502p-e48/t
Description
Ds2502-e48 48-bit Node Address Chip
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS2502P-E48T.pdf
(2 pages)
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.
www.maxim-ic.com
FEATURES
§ Factory programmed 48-bit node address
§ Provides valid MAC-48/EUI-48
§ Unique, factory lasered and tested 64-bit
§ Built-in multidrop controller ensures
§ Device is an “add-only” memory where
§ Reduces control, address, data, power and
§ Directly connects to a single port pin of a
§ Presence detector acknowledges when reader
§ Low cost TO-92 or TSOC surface mount
§ Reads over a wide voltage range of 2.8V to
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.
chip with 768 bits user-programmable OTP-
EPROM communicates with the economy of
one signal plus ground
ETHERNET address
registration number assures absolute
traceability because no two parts are alike
compatibility with other 1-Wire
additional data can be programmed into
EPROM without disturbing existing data
programming signals to a single pin
microprocessor and communicates at up to
16.3kbps
first applies voltage
packages
6.0V from -40°C to +85°C; programs at
11.5V to 12.0V from -40°C to + 50°C
®
products
1 of 2
PIN CONFIGURATION
ORDERING INFORMATION
DS2502-E48
DS2502P-E48
DS2502P-E48/T&R Tape-and-Reel version of
48-Bit Node Address Chip
TSOC PACKAGE
BOTTOM VIEW
TOP VIEW
TO-92
TO-92 package
TSOC package
DS2502P-E48
DS2502-E48
021103
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ds2502p-e48/t Summary of contents
Page 1
... For information about device errata, click here: www.maxim-ic.com/errata. 48-Bit Node Address Chip PIN CONFIGURATION ® products ORDERING INFORMATION DS2502-E48 DS2502P-E48 DS2502P-E48/T&R Tape-and-Reel version DS2502-E48 TO-92 BOTTOM VIEW TSOC PACKAGE TOP VIEW TO-92 package ...
Page 2
The first 32 bytes of the DS2502-E48’s EPROM memory contain a globally unique 48-bit node address and are write-protected. The data structure follows the conventions of UniqueWare devices using Default Data Structure (Figure 1). Figure 1. NODE ADDRESS CHIP DATA ...