- 您现在的位置：买卖IC网 > Datasheet目录222 > DS1990R-F5# (Maxim Integrated)IBUTTON SERIAL NUMBER F5 Datasheet资料下载
参数资料
| 型号： | DS1990R-F5# |
| 厂商： | Maxim Integrated |
| 文件页数： | 9/10页 |
| 文件大小： | 0K |
| 描述： | IBUTTON SERIAL NUMBER 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： | 73 |
| 系列： | iButton® |
| 存储容量： | 8B |
| 存储器类型： | ROM |
| 产品目录页面： | 1431 (CN2011-ZH PDF) |
Serial Number iButton
Slave-to-Master
A read-data time slot begins like a write-one time slot.
The voltage on the data line must remain below V ILMAX
until the read low time t RL is expired. During the t RL
window, when responding with a 0, the DS1990R starts
pulling the data line low; its internal timing generator
determines when this pulldown ends and the voltage
starts rising again. When responding with a 1, the
DS1990R does not hold the data line low at all, and the
voltage starts rising as soon as t RL is over.
The sum of t RL + δ (rise time) on one side and the inter-
nal timing generator of the DS1990R on the other side
define the master sampling window (t MSRMIN to
t MSRMAX ) in which the master must perform a read from
the data line. For most reliable communication, t RL
should be as short as permissible and the master should
read close to but no later than t MSRMAX . After reading
from the data line, the master must wait until t SLOT is
expired. This guarantees sufficient recovery time t REC
for the DS1990R to get ready for the next time slot.
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages . Note that a “+”, “#”, or “-” in
the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to
the package regardless of RoHS status.
PACKAGE TYPE
F3 iButton
F5 iButton
PACKAGE CODE
IB#3NB
IB#5NB
OUTLINE NO.
LAND PATTERN NO.
—
—
_______________________________________________________________________________________
9
相关PDF资料 |
PDF描述 |
|---|---|
| DS1993L-F5+ | IBUTTON MEMORY 4KBit F5 |
| DS1995L-F5+ | IBUTTON MEMORY 16KBit F5 |
| DS1996L-F5+ | IBUTTON MEMORY 64KBit F5 |
| DS9092K# | KIT IBUTTON STARTER |
| DS9502P+T&R | DIODE ESD PROTECTION 6-TSOC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1990R-F5# | 功能描述:序列号注册 Serial Number iButton RoHS:否 制造商:Maxim Integrated 数据总线宽度: 电源电压-最大: 电源电压-最小: 最大工作温度: 最小工作温度: 安装风格: 封装 / 箱体: |
| DS1990R-F5+W | 功能描述:序列号注册 RoHS:否 制造商:Maxim Integrated 数据总线宽度: 电源电压-最大: 电源电压-最小: 最大工作温度: 最小工作温度: 安装风格: 封装 / 箱体: |
| DS1990-序列号IBUTTON | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| DS1991 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:MultiKey iButton |
| DS1991L | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
发布紧急采购，3分钟左右您将得到回复。