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参数资料
| 型号： | DS1971-F3+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 2/4页 |
| 文件大小： | 0K |
| 描述： | IBUTTON EEPROM 256KBIT F3 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| RoHS指令信息： | IButton RoHS Compliance Plan |
| 标准包装： | 1 |
| 系列： | iButton® |
| 存储容量： | 32B |
| 存储器类型： | EEPROM |
| 产品目录页面： | 1431 (CN2011-ZH PDF) |
DS1971
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, refer to the DS2430A data sheet.
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相关PDF资料 |
PDF描述 |
|---|---|
| DS1972-F3+ | IBUTTON EEPROM 1KBit F3 |
| DS1973-F3+ | IBUTTON EEPROM 4KBit F3 |
| DS1977-F5# | IBUTTON EEPROM 32KBit F5 |
| DS1982-F5+ | IBUTTON 1KBit ADD-ONLY F5 |
| DS1985-F3+ | IBUTTON 16KBit ADD-ONLY F3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1971-F3# | 功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated |
| DS1971-F3+ | 功能描述:iButton 256-Bit EEPROM iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated |
| DS1971-F3+W | 功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated |
| DS1971-F5 | 功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated |
| DS1971-F5# | 功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated |
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