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DS2502 Datasheet(数据表) 2 Page - Dallas Semiconductor

部件型号  DS2502
说明  1 kbit Add-Only Memory
下载  3 Pages
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制造商  DALLAS [Dallas Semiconductor]
网页  http://www.dalsemi.com
标志 

DS2502 Datasheet(HTML) 2 Page - Dallas Semiconductor

   
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DS2502/5/6-UNW
2 of 3
102099
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
Memory Size
Family Code
Package
Ordering Part Number
1024 bits
89h
TO-92 package
DS2502-UNW-pppp
(4 pages)
8-pin 150 mil SOIC pkg.
DS2502S-UNW-pppp
6-pin TSOC package
DS2502P-UNW-pppp
16k bits
8Bh
TO-92 package
DS2505-UNW-pppp
(64 pages)
6-pin TSOC package
DS2505P-UNW-pppp
64k bits
8Fh
PR-35 package
DS2506-UNW-pppp
(256 pages)
8-pin 208 mil SOIC pkg.
DS2506S-UNW-pppp
pppp stands for the Project ID assigned to each individual data pattern at the time of the first order.
Sample UniqueWare Data Structures
SAMPLE 1: ETHERNET NODE ADDRESS Figure 1a
(unused)
CRC16
Company ID Value
Extension ID Value
Project ID
Length
MSB
LSB
MSB
LSB
MSB
LSB
MSB LSB
19 bytes
2 bytes
3 bytes constant
3 bytes serialization
4 bytes
1 byte
FFH
assigned by IEEE
constant
0AH
high address
low address
PHYSICAL ADDRESS AND DATA MAPPING Figure 1b
ADDRESS
0C
0B
0A
09
08
07
06
05
04
03
02
01
00
DATA
xx
xx
ch
cm
cl
hh
mm
ll
00
00
pp
pp
0A
xx xx = CRC16, value depends on actual data
ch cm cl = high, medium and low byte of the IEEE assigned “Company ID”
hh mm ll = high, medium and low byte of the “Extension ID” or serialization
pp pp = Project ID assigned by Dallas Semiconductor




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