參數(shù)資料
型號(hào)： DS2404S-001
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： Timer or RTC
英文描述： 0 TIMER(S), REAL TIME CLOCK, PDSO16
封裝： 0.300 INCH, SOIC-16
文件頁(yè)數(shù)： 6/31頁(yè)
文件大小： 1591K
代理商： DS2404S-001
DS2404
14 of 29
HARDWARE CONFIGURATION Figure 8
NOTE:
Depending on 1-Wire communication speed and bus load characteristics, the optimal pull-up resistor
value will be in the 1.5 k
Ω range to 5 kΩ range.
TRANSACTION SEQUENCE
The protocol for accessing the DS2404 via the 1-Wire port is as follows:
Initialization
ROM Function Command
Memory Function Command
Transaction/Data
INITIALIZATION
All transactions on the 1-Wire bus begin with an initialization sequence. The initialization sequence
consists of a reset pulse transmitted by the bus master followed by presence pulse(s) transmitted by the
slave(s). The presence pulse lets the bus master know that the DS2404 is on the bus and is ready to
operate. For more details, see the “1-Wire Signaling” section.
ROM FUNCTION COMMANDS
Once the bus master has detected a presence, it can issue one of the five ROM function commands. All
ROM function commands are eight bits long. A list of these commands follows (refer to flowchart in
Figure 9):
Read ROM [33h]
This command allows the bus master to read the DS2404’s 8-bit family code, unique 48-bit serial
number, and 8-bit CRC. This command can only be used if there is a single DS2404 on the bus. If more
than one slave is present on the bus, a data collision will occur when all slaves try to transmit at the same
time (open drain will produce a wired-AND result). The resultant family code and 48-bit serial number
will usually result in a mismatch of the CRC.
See
Note
相關(guān)PDF資料
PDF描述
DS2404B 0 TIMER(S), REAL TIME CLOCK, PDSO16
DS2404 0 TIMER(S), REAL TIME CLOCK, PDIP16
DS2405P SPECIALTY MEMORY CIRCUIT, PDSO6
DS2405 SPECIALTY MEMORY CIRCUIT, PBCY3
DS2405Z SPECIALTY MEMORY CIRCUIT, PDSO4
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2404S-001/T&R 制造商:Maxim Integrated Products 功能描述:ECONORAM/TIME, SOIC16-TRL (GENERIC) - Tape and Reel
DS2404S-001+ 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16SOIC - Rail/Tube
DS2404S-001+T&R 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16SOIC - Tape and Reel
DS2404S-C01 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
DS2405 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
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