- 您现在的位置：买卖IC网 > Datasheet目录222 > DS1996L-F5+ (Maxim Integrated)IBUTTON MEMORY 64KBit F5 Datasheet资料下载
参数资料
| 型号： | DS1996L-F5+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 12/19页 |
| 文件大小： | 0K |
| 描述： | IBUTTON MEMORY 64KBit 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： | 15 |
| 系列： | iButton® |
| 存储容量： | 8KB |
| 存储器类型： | NVRAM |
| 产品目录页面： | 1431 (CN2011-ZH PDF) |
DS1996
1-WIRE SIGNALING
The DS1996 requires strict protocols to ensure data integrity. The protocol consists of four types of
signaling on one line: Reset Sequence with Reset Pulse and Presence Pulse, Write 0, Write 1 and Read
Data. All these signals except presence pulse are initiated by the bus master. The DS1996 can
communicate at two different speeds, regular speed and Overdrive speed. If not explicitly set into the
overdrive mode, the DS1996 will communicate at regular speed. While in Overdrive Mode the fast timing
applies to all wave forms.
The initialization sequence required to begin any communication with the DS1996 is shown in Figure 10.
A reset pulse followed by a presence pulse indicates the DS1996 is ready to send or receive data given the
correct ROM command and memory function command. The bus master transmits (TX) a reset pulse
(t RSTL , minimum 480 μs at regular speed, 48 μs at Overdrive speed). The bus master then releases the line
and goes into receive mode (RX). The 1-Wire bus is pulled to a high state via the pullup resistor. After
detecting the rising edge on the data contact, the DS1996 waits (t PDH , 15-60 μs at regular speed, 2-6 μs at
Overdrive speed) and then transmits the presence pulse (t PDL , 60-240 μs at regular speed, 8-24 μs at
Overdrive speed).
A Reset Pulse of 480 μs or longer will exit the Overdrive Mode returning the device to regular speed. If
the DS1996 is in Overdrive Mode and the Reset Pulse is no longer than 80 μs the device will remain in
Overdrive Mode.
12 of 19
相关PDF资料 |
PDF描述 |
|---|---|
| DS9092K# | KIT IBUTTON STARTER |
| DS9502P+T&R | DIODE ESD PROTECTION 6-TSOC |
| DS9503P+ | DIODE ESD PROTECTION W/RES 6TSOC |
| DSL70 E6327 | DIODES TVS ARRAY R-R SOT-143 |
| DT-2R48-B6 | SWITCH PLUNGER DPDT 10A SCREW |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1996L-F5/A18 | 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 |
| DS1996L-F5+ | 功能描述:iButton 64Kb Memory 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 |
| DS-19P | 制造商:Pan Pacific 功能描述: |
| DS-19S | 制造商:Pan Pacific 功能描述: |
| DS1-A | 制造商:Sliger Designs, Inc. 功能描述:CPC CASE W/ POWER SUPPLY (SPI220LE) FANS, SWITCH ECT. - Bulk |
发布紧急采购，3分钟左右您将得到回复。