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參數(shù)資料
| 型號： | DS1971 |
| 英文描述： | 256-Bit EEPROM iButton |
| 中文描述： | 256位EEPROM iButton® |
| 文件頁數(shù)： | 2/3頁 |
| 文件大?。?/td> | 234K |
| 代理商： | DS1971 |
DS1971
2 of 3
EXAMPLES OF ACCESSORIES
DS9096P
DS9101
DS9093RA
Self-Stick Adhesive Pad
Multi-Purpose Clip
Mounting Lock Ring
DS9093F
DS9092
Snap-in Fob
iButton Probe
iButton DESCRIPTION
The DS1971 256-bit EEPROM iButton is a rugged read/write data carrier that identifies and stores
relevant information about the product or person to which it is attached. This information can be accessed
with minimal hardware: for example, a single port pin of a microcontroller. The DS1971 consists of a
factory-lasered registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-
bit Family Code (14H) plus 256 bits of EEPROM. The power to program and read the DS1971 is derived
entirely from the 1-Wire communication line. Data is transferred serially via the 1-Wire protocol which
requires only a single data lead and a ground return. The 48-bit serial number that is factory-lasered into
each DS1971 provides a guaranteed unique identity which allows for absolute traceability. The durable
MicroCan package is highly resistant to harsh environments such as dirt, moisture, and shock. Its compact
button-shaped profile is self-aligning with cup-shaped receptacles, allowing the DS1971 to be used easily
by human operators or automatic equipment. Accessories permit the DS1971 to be mounted on printed
circuit boards, plastic key fobs, photo-ID badges, ID bracelets, and many other objects. Applications
include work-in-progress tracking, electronic travelers, access control and storage of calibration
constants.
OVERVIEW
The block diagram in Figure 1 shows the relationships between the major control and memory sections of
the DS1971. The DS1971 has four main data components: 1) 64-bit lasered ROM, 2) 256-bit EEPROM
data memory with scratchpad, 3) 64-bit one-time programmable application register with scratchpad, and
4) 8-bit status memory. The bus master must first provide one of the ROM Function Commands before
the memory functions become accessible. All data is read and written least significant bit first.
The DS1971 contains the same memory chip as the DS2430A. For a full description of the logical
behavior, please refer to the DS2430A data sheet.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1973 | 4-kbit EEPROM iButton |
| DS1977 | 32KB EEPROM iButton |
| DS1977-F5 | 32KB EEPROM iButton |
| DS1982U | UniqueWare iButton |
| DS1985U | UniqueWare iButton |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1971-004-550/1+ | 制造商:Maxim Integrated Products 功能描述: |
| DS1971-F3 | 功能描述:iButton RoHS:否 存儲類型:SRAM 存儲容量: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 |
| DS1971-F3# | 功能描述:iButton RoHS:否 存儲類型:SRAM 存儲容量: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 |
| DS1971-F3+ | 功能描述:iButton 256-Bit EEPROM iButton RoHS:否 存儲類型:SRAM 存儲容量: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 |
| DS1971-F3+W | 功能描述:iButton RoHS:否 存儲類型:SRAM 存儲容量: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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