參數(shù)資料
型號(hào)： DS1985
英文描述： 16-kbit Add-Only iButton
中文描述： 16K位只添加iButton®
文件頁數(shù)： 1/25頁
文件大?。?/td> 440K
代理商： DS1985
1 of 25
090299
SPECIAL FEATURES
§
16384 bits Electrically Programmable Read
Only Memory (EPROM) communicates with
the economy of one signal plus ground
§
EPROM partitioned into sixty-four 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
§
Architecture allows software to patch data by
superseding an old page in favor of a newly
programmed page
§
Reduces control, address, data, power, and
programming signals to a single data pin
§
8-bit family code specifies DS1985
communications requirements to reader
§
Reads over a wide voltage range of 2.8V to
6.0V from -40°C to +85°C; programs at
11.5V to 12.0V from -40°C to +85°C
COMMON iButton FEATURES
§
Unique, factory-lasered and tested 64-bit
registration number (8-bit family code + 48-
bit serial number + 8-bit CRC tester) assures
absolute traceability because no two parts are
alike
§
Multidrop controller for MicroLAN
§
Digital identification and information by
momentary contact
§
Chip-based data carrier compactly stores
information
§
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
TM
protocol ensure compatibility with iButton
family
§
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
§
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)
F3 MICROCAN
TM
F5 MICROCAN
TM
DS1985
16-kbit Add-Only iButton
TM
www.dalsemi.com
DATA
GROUND
0.36
0.51
3.10
c
1993
YYWW REGISTERED RR
ED
0B
000000FBC52B
16.25
17.35
5.89
DATA
GROUND
0.36
0.51
c
1993
YYWW REGISTERED RR
6D
000000FBD8B3
0B
16.25
17.35
All dimensions shown in millimeters.
相關(guān)PDF資料
PDF描述
DS1985-F5 16-kbit Add-Only iButton
DS1985-F3 16-kbit Add-Only iButton
DS1990P Analog IC
DS1990R Analog IC
DS1991L Analog IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1985+F3 制造商:Maxim Integrated Products 功能描述:ADD-O IBTN 16KB, F3 (GENERIC) LFREE - Rail/Tube
DS1985+F5 制造商:Maxim Integrated Products 功能描述:ADD-O IBTN 16KB, F5 (GENERIC) LFREE - Rail/Tube
DS1985-F3 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1985-F3# 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1985-F3+ 功能描述:iButton 16Kb Add-Only iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
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