- 您现在的位置：买卖IC网 > PDF目录21888 > DS1985-F5+ (Maxim Integrated)IBUTTON 16KBit ADD-ONLY F5 PDF资料下载
参数资料
| 型号： | DS1985-F5+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 25/26页 |
| 文件大小： | 0K |
| 描述： | IBUTTON 16KBit ADD-ONLY F5 |
| 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： | 2KB |
| 存储器类型： | EPROM |
| 产品目录页面： | 1431 (CN2011-ZH PDF) |
DS1985
NOTES:
1. All voltages are referenced to ground.
2. V PUP = external pullup voltage. If V PUP is lower than 3.0V the first byte read (any read command)
may not reproduce the correct memory contents. Therefore, under low voltage conditions, it is
recommended to set either the most significant bit or all five most significant bits of TA2 to 1.
Internal circuitry of the chip will force these five bits back to 0 before they are shifted in the address
counter and CRC generator.
3. Input load is to ground.
4. An additional reset or communication sequence cannot begin until the reset high time has expired.
5. Read data setup time refers to the time the host must pull the 1-Wire bus low to read a bit. Data is
guaranteed to be valid within 1 ? s of this falling edge and will remain valid for 14 ? s minimum. (15
? s total from falling edge on 1-Wire bus.)
6. V IH is a function of the external pullup resistor and V PUP .
7. 30 nanocoulombs per 72 time slots @ 5.0V.
8. At V CC =5.0V with a 5k ? pullup to V CC and a maximum time slot of 120 ? s.
9. Capacitance on the data pin could be 800 pF when power is first applied. If a 5k ? resistor is used to
pull up the data line to V CC , 5 ? s after power has been applied the parasite capacitance will not affect
normal communications.
10. Under certain low voltage conditions V ILMAX may have to be reduced to as much as 0.5V to always
guarantee a presence pulse.
25 of 26
相关PDF资料 |
PDF描述 |
|---|---|
| DS1972-F5+ | IBUTTON EEPROM 1KBit F5 |
| MLEAWT-A1-0000-0002A3 | LED XLAMP ML-E WHITE SMD |
| DS1971-F5+ | IBUTTON EEPROM 256KBIT F5 |
| DS1982-F3+ | IBUTTON 1KBit ADD-ONLY F3 |
| MLEAWT-A1-0000-0001AA | LED XLAMP ML-E WHITE SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1985-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 |
| DS1985-F5+ | 功能描述:iButton 16Kb Add-Only 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 |
| DS1985U | 制造商:未知厂家 制造商全称:未知厂家 功能描述:UniqueWare iButton |
| DS1985U-F5-117D+ | 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 |
| DS1986 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:64-kbits Add-Only iButton⑩ |
发布紧急采购，3分钟左右您将得到回复。