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參數(shù)資料
| 型號： | DS2490S |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Bus Controller |
| 英文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PDSO24 |
| 封裝： | 0.300 INCH, SO-24 |
| 文件頁數(shù)： | 28/51頁 |
| 文件大?。?/td> | 444K |
| 代理商： | DS2490S |
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DS2490
34 of 50
SUSPEND OUTPUT
Suspend output signal ( SUSO ) operation is a function of both the USB device state of the DS2490
(configured or unconfigured) and the USB suspend state. A truth table for signal operation is listed in
Table 20. This signal could be used stand-alone or combined with other external signals to power down
circuitry external to the DS2490, such as power sources. The SUSO signal is an open drain output and
requires an external pullup.
Suspend Output Operation Table 20
Device State
Suspend State
SUSO
unconfigured
don’t care
HIGH
configured
not suspended
HIGH
configured
suspended
LOW
OSCILLATOR
The DS2490 requires a single 12.0MHz crystal or crystal oscillator clock source to operate. Crystals or
CMOS crystal oscillators may be used to provide clock sources. For crystals, use parallel resonant,
fundamental mode with a CL specification between 10pF and 20pF at the required frequency. Parallel
loading capacitors with a value of approximately twice CL are also required. The connection scheme
shown in Figure 12 should be used. For external CMOS crystal oscillators, make a connection directly to
the DS2490 XI input. The XO output must be left floating for this arrangement.
Oscillator Connection Figure 12
DS2490
XI
XO
33 pF
12 MhZ
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2502P | 128 X 8 OTPROM, PDSO6 |
| DS2502S | 128 X 8 OTPROM, PDSO8 |
| DS2502 | 128 X 8 OTPROM, PBCY3 |
| DS2505/T&R | 16K X 1 OTPROM, PBCY3 |
| DS2505P | 16K X 1 OTPROM, PDSO6 |
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 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59 |
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