DS1986U [ETC]
UniqueWare iButton ; iButton的的UniqueWare\n
| 型号： | DS1986U |
| 厂家： | 
ETC |
| 描述： | UniqueWare iButton
|
| 文件： | 总2页 (文件大小：27K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DS1982/5/6U
UniqueWare iButtonTM
www.dalsemi.com
SPECIAL FEATURES
COMMON iButton FEATURES
ꢀ Multidrop controller for MicroLAN
ꢀ Digital identification and information by
momentary contact
ꢀ Chip–based data carrier compactly stores
information
ꢀ 1024 bits, 16K bits or 64K bits Electrically
Programmable Read Only Memory
(EPROM) communicates with the economy
of one signal plus ground
ꢀ
Unique, factory lasered and tested 64–bit
registration number (8–bit family code, 36–bit
serialization, 12–bit UniqueWare Identifier
5E7H, 8–bit CRC tester) assures absolute
traceability because no two parts are alike
ꢀ Data can be accessed while affixed to object
ꢀ
Economically communicates to bus master with
a single digital signal at 16.3k bits per second
Standard 16 mm diameter and 1–Wire protocol
ensure compatibility with iButton family
ꢀ
ꢀ EPROM partitioned into 256–bit pages for
randomly accessing packetized data records
ꢀ Each memory page can be permanently
write–protected to prevent tampering
ꢀ Device is an “add only” 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
ꢀ Button Shape is self–aligning with cup–
shaped probes
ꢀ Durable stainless steel case engraved with
registration number withstands harsh
environments
ꢀ Easily affixed with self–stick adhesive
backing, latched by its flange, or locked with
a ring pressed onto its rim
ꢀ 8–bit family code specifies device
communications requirements to reader
ꢀ Presence detector acknowledges when reader
first applies voltage
ꢀ Presence detector acknowledges when reader
first applies voltage
ꢀ Meets UL#913 (4th edit.); Intrinsically Safe
Apparatus, Approved under Entity Concept
for use in Class I, Division 1, Group A, B, C
and D Locations (application pending)
ꢀ Reads over a wide voltage range of 2.8V to
6.0V from –40°C to +85°C
iButton DESCRIPTION
UniqueWare iButtons are factory programmed versions of the DS1982 (1024 bit), the DS1985 (16K bit)
and the DS1986 (64K bit) Add–Only iButtons, respectively. They differ from the regular devices in their
custom ROM family codes (see Ordering Information) and the UniqueWare Identifier 5E7 in place of the
upper 12 bits of the standard serialization field. For technical details on the devices please refer to the
DS1982, DS1985 and DS1986 data sheets.
UniqueWare Add–Only iButtons are only available preprogrammed with customer–specific and write–
protected data. UniqueWare data fills at least one but no more than the first four pages of a device,
depending on the length of the customer–supplied data. This leaves up to three (DS1982U), 63
(DS1985U) or 255 (DS1986U) 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”.
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DS1982/5/6U
ORDERING INFORMATION
Memory Size
1024 bits
(4 pages)
Family Code
Package
F3 MicroCan
F5 MicroCan
Ordering Part Number
DS1982U–F3–pppp
DS1982U–F5–pppp
89h
8Bh
8Fh
16K bits
(64 pages)
F3 MicroCan
F5 MicroCan
DS1985U–F3–pppp
DS1985U–F5–pppp
64K bits
(256 pages)
F3 MicroCan
F5 MicroCan
DS1986U–F3–pppp
DS1986U–F5–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
MSB LSB MSB
2 bytes 3 bytes constant
assigned by IEEE
Company ID Value Extension ID Value
LSB MSB LSB MSB
3 bytes serialization
Project ID
LSB
4 bytes
Length
19 bytes
FFH
1 byte
0AH
constant
high address
low address
PHYSICAL ADDRESS AND DATA MAPPING Figure 1b
0C
xx
0B
xx
0A
ch
09
08
cl
07
hh
06
05
ll
04
00
03
00
02
pp
01
pp
00
0A
Address
Data
cm
mm
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
SAMPLE 2: EUI–64 FireWireTM NODE ADDRESS Figure 2a
(unused)
CRC16
MSB LSB MSB
2 bytes 3 bytes constant
assigned by IEEE
Company ID Value Extension ID Value
LSB MSB LSB MSB
5 bytes serialization
Project ID
LSB
4 bytes
Length
17 bytes
FFH
1 byte
0CH
constant
high address
low address
PHYSICAL ADDRESS AND DATA MAPPING Figure 2b
0E 0D 0C 0B 0A 09
08
07
06
05
ll
04
00
03
00
02
pp
01
pp 0C
00
Address
Data
xx xx ch cm cl hh hm mm ml
xx xx = CRC16, value depends on actual data
ch cm cl = high, medium and low byte of the IEEE assigned “Company ID”
hh hm mm ml ll = high, medium and low byte of the “Extension ID” or serialization
pp pp = Project ID assigned by Dallas Semiconductor
FireWireTM is a trademark of Apple Computer, Inc.
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