參數(shù)資料
型號(hào)： DS2490S
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 9/50頁(yè)
文件大?。?/td> 0K
描述： IC BRIDGE CLIP USB TO 1-W 24SOIC
標(biāo)準(zhǔn)包裝： 31
應(yīng)用： USB
接口： 1 線
電源電壓： 3 V ~ 5.5 V
封裝/外殼： 24-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 24-SOIC W
包裝： 管件
安裝類型： 表面貼裝
DS2490
17 of 50
1-Wire Power-On Default Modes Table 11
Setting/Parameter
Power-On Default Value
Strong pullup to 5V
FALSE
Dynamic Speed Change
FALSE
1-Wire Bus Communication Speed
0x0 (Regular Speed, ~16kbps)
+5V Strong Pullup Duration
0x20 (512ms)
Pulldown Slew Rate Control
0x5 (0.83V/
s)
Write-1 Low Time
0x4 (8
s)
Data Sample Offset / Write-0 Recovery Time
0x4 (18
s)
CONTROL COMMANDS
DS2490 Control commands are used to control the processing of Communication commands/data and can
also be used to issue a device Reset. As listed in Table 12 there are 9 Control commands. The USB
control transfer setup packet coding to transmit these commands is detailed in Appendix 1. Like Mode
commands, Control commands are immediately processed by the DS2490 when they are received.
Control Command Set Summary Table 12
Command
Function
RESET DEVICE
Perform a hardware reset.
START EXECUTION
Start execution of Communication commands.
RESUME EXECUTION
Resume execution of Communication commands.
HALT EXECUTION WHEN
IDLE
Halt Communication command execution when the 1-Wire bus is
idle.
HALT EXECUTION WHEN
DONE
Halt further Communication command execution when the current
command execution completes.
FLUSH COMM CMDS
Clear unexecuted Communication commands from the command
buffer.
FLUSH DATA RCV BUFFER
Clear the data receive buffer (data from a 1-Wire device).
FLUSH DATA XMT BUFFER
Clear the data transmit buffer (data to a 1-Wire device).
GET COMM CMDS
Retrieve unexecuted Communication commands from the command
buffer.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2490S+ 制造商:Maxim Integrated Products 功能描述:USB TO 1-WIRE BRIDGE 24SOIC W - Rail/Tube 制造商:Maxim Integrated Products 功能描述:USB 1-W BRIDGE CHIP 24-SO LF 制造商:Maxim Integrated Products 功能描述:Bulk
DS2490S+T&R 制造商:Maxim Integrated Products 功能描述:USB TO 1-WIRE BRIDGE 24SOIC W - Tape and Reel
DS2490S+TR 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:USB to 1-Wire Bridge Chip
DS2490X 制造商:未知廠家 制造商全稱:未知廠家 功能描述:USB to 1-Wire Bridge Chip(468.41 k)
DS2490X/T&R 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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