- 您现在的位置：买卖IC网 > PDF目录19941 > DS2433+ (Maxim Integrated)IC EEPROM 4KBIT TO92-3 PDF资料下载
参数资料
| 型号： | DS2433+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/23页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 4KBIT TO92-3 |
| 产品培训模块： | 1-Wire Communications Lead (SnPb) Finish for COTS |
| 产品变化通告： | Product Discontinuation 08/Dec/2011 |
| 标准包装： | 1 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 4K (256 x 16) |
| 接口： | 1 线 串行 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | TO-226-3、TO-92-3 长体 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 散装 |
| 产品目录页面： | 1429 (CN2011-ZH PDF) |
DS2433
Figure 8. HARDWARE CONFIGURATION
R PU *
*5k ? IS ADEQUATE FOR READING THE DS2433. TO WRITE TO A SINGLE DEVICE, A 2.2k ? RESISTOR AND V PUP OF AT LEAST 4.0V IS
SUFFICIENT. FOR WRITING MULTIPLE DS2433s SIMULTANEOUSLY OR OPERATION AT LOW V PUP , THE R PU SHOULD BE BYPASSED
BY A LOW-IMPEDANCE PULLUP TO V PUP WHILE THE DEVICE COPIES THE SCRATCHPAD TO EEPROM. DEPENDING ON THE 1-Wire
COMMUNICATION SPEED AND THE BUS LOAD CHARACTERISTICS, THE OPTIMAL PULLUP RESISTOR (R PU ) VALUE WILL BE IN THE
1.5k ? TO 5k ? RANGE.
1-Wire BUS SYSTEM
The 1-Wire bus is a system which has a single bus master and one or more slaves. In all instances the
DS2433 is a slave device. The bus master is typically a microcontroller. The discussion of this bus system
is broken down into three topics: hardware configuration, transaction sequence, and 1-Wire signaling
(signal types and timing). A 1-Wire protocol defines bus transactions in terms of the bus state during
specific time slots that are initiated on the falling edge of sync pulses from the bus master.
HARDWARE CONFIGURATION
The 1-Wire bus has only a single line by definition; it is important that each device on the bus be able to
drive it at the appropriate time. To facilitate this, each device attached to the 1-Wire bus must have open
drain or 3-state outputs. The 1-Wire port of the DS2433 is open drain with an internal circuit equivalent
to that shown in Figure 8. A multidrop bus consists of a 1-Wire bus with multiple slaves attached. At
regular speed the 1-Wire bus has a maximum data rate of 16.3kbps. The speed can be boosted to 142kbps
by activating the Overdrive Mode. The 1-Wire bus requires a pullup resistor of approximately 5k ? .
The idle state for the 1-Wire bus is high. If for any reason a transaction needs to be suspended, the bus
MUST be left in the idle state if the transaction is to resume. If this does not occur and the bus is left low
for more than 16 ? s (Overdrive Speed) or more than 120 ? s (regular speed), one or more devices on the
bus may be reset.
TRANSACTION SEQUENCE
The protocol for accessing the DS2433 via the 1-Wire port is as follows:
?
?
?
?
Initialization
ROM Function Command
Memory Function Command
Transaction/Data
11 of 23
相关PDF资料 |
PDF描述 |
|---|---|
| T86D106M035EBAS | CAP TANT 10UF 35V 20% 2917 |
| T86D106K035EBAS | CAP TANT 10UF 35V 10% 2917 |
| LT1640LCS8 | IC CONTRLR HOTSWAP NEGVOLT 8SOIC |
| T86D685M035EBAS | CAP TANT 6.8UF 35V 20% 2917 |
| R1D10-0515-R | CONV DC/DC 1W DUAL +/-15VOUT SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2433+ | 功能描述:电可擦除可编程只读存储器 4Kb 1-Wire 电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| DS2433AX-S#T | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
| DS2433D/T&R | 制造商:Maxim Integrated Products 功能描述:IC EEPROM 4KBIT 6FLIPCHIP |
| DS2433D/T&R | 功能描述:IC EEPROM 4KBIT 6FCHIP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:150 系列:- 格式 - 存储器:EEPROMs - 串行 存储器类型:EEPROM 存储容量:4K (2 x 256 x 8) 速度:400kHz 接口:I²C，2 线串口 电源电压:2.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-DFN（2x3） 包装:管件 产品目录页面:1445 (CN2011-ZH PDF) |
| DS2433G+T&R | 制造商:Maxim Integrated Products 功能描述:IC EEPROM 4KBIT 2SFN |
发布紧急采购，3分钟左右您将得到回复。