DS2502P-UNW Maxim Integrated Products, Inc., DS2502P-UNW Datasheet - Page 2

• Manufacturer Part Number: DS2502P-UNW
• Description: Ds2502-unw, Ds2502p-unw, Ds2502s-unw, Ds2505-unw, Ds2505p-unw, Ds2506-unw, Uniqueware Add-only Memory
• Manufacturer: Maxim Integrated Products, Inc.

depending on the length of the customer-supplied data. This leaves up to three (DS2502-UNW), 63
(DS2505-UNW) or 255 (DS2506-UNW) memory pages available for programming in the application.
For more details on UniqueWare and how to set up data files, please refer to the UniqueWare Project
Setup Manual, available as Application Note 99 from Dallas Semiconductor. The UniqueWare Project
Setup Software is available from the Dallas Semiconductor FTP Site at
ftp://ftp.dalsemi.com/pub/auto_id, file name "unwsetup.exe."
ORDERING INFORMATION
Sample UniqueWare Data Structures
SAMPLE 1: ETHERNET NODE ADDRESS Figure 1a
PHYSICAL ADDRESS AND DATA MAPPING Figure 1b
Memory Size
1024 bits
(4 pages)
16k bits
(64 pages)
64k bits
(256 pages)
pppp stands for the Project ID assigned to each individual data pattern at the time of the first order.
high address
ADDRESS
DATA
(unused)
19 bytes
FFH
xx xx = CRC16, value depends on actual data
ch cm cl = high, medium and low byte of the IEEE assigned “Company ID”
MSB
0C
xx
CRC16
2 bytes
Family Code
89h
8Bh
8Fh
hh mm ll = high, medium and low byte of the “Extension ID” or serialization
0B
xx
LSB MSB
pp pp = Project ID assigned by Dallas Semiconductor
0A
ch
Company ID Value
assigned by IEEE
3 bytes constant
Package
TO-92 package
8-pin 150 mil SOIC pkg.
6-pin TSOC package
TO-92 package
6-pin TSOC package
PR-35 package
8-pin 208 mil SOIC pkg.
cm
09
08
cl
LSB
07
hh
2 of 3
mm
06
MSB
Extension ID Value
3 bytes serialization
05
ll
Ordering Part Number
DS2502-UNW-pppp
DS2502S-UNW-pppp
DS2502P-UNW-pppp
DS2505-UNW-pppp
DS2505P-UNW-pppp
DS2506-UNW-pppp
DS2506S-UNW-pppp
04
00
LSB
03
00
MSB LSB
02
pp
Project ID
constant
4 bytes
01
pp
DS2502/5/6-UNW
low address
0A
00
Length
1 byte
0AH
102099