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參數(shù)資料
| 型號： | DS2490Y |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 12/50頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC BRIDGE CLIP USB TO 1-W 24SOIC |
| 標準包裝： | 1,000 |
| 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 |
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DS2490
2 of 50
SIGNAL SUMMARY Table 1
SIGNAL NAME
TYPE
FUNCTION
VD
PWR
Power supply input for digital and 1-Wire functions. Range: 5.0
10%
VD2
PWR
Second VD supply, must be tied to VD externally to the IC (the two pins
are not tied together inside the package).
VB
PWR
Power supply input for USB functions. Range: 3.3V
10% supply
regulated from USB supplied VBUS.
D+
I/O
USB data—non-inverted of differential data pair.
D-
I/O
USB data—inverted signal of differential data pair.
1-Wire
I/O
1-Wire input/output.
PMOD
I
Reserved for future use. Must be tied to GND.
SUSO
O
Suspend Output—buffered USB suspend-state output from USB device
controller. When HIGH the USB is in an active non-suspended state,
when LOW the USB has entered a suspended state. This is an open drain
output and requires an external pullup.
XI
I
Crystal input. Use a 12.0 MHz, fundamental-mode, parallel-resonant
crystal. A 12.0MHz CMOS clock source may also be used.
XO
O
Crystal output. Connect to other side of crystal 1 if used.
GND
PWR
Ground reference and ground return for 1-Wire bus.
NC
No connect. For factory use or reserved, do not connect to these pins.
RELATED DOCUMENTS
This specification uses terms from and references or complies with the Universal Serial Bus Specification
v1.1, which may be obtained from the USB Implementers Forum website: www.usb.org. The USB
specification is considered to be part of the DS2490 specification.
DOCUMENT ORGANIZATION
The remainder of this document is organized into the following major sections:
SECTION
SUMMARY
OVERVIEW
Device functional summary and application examples
1-WIRE I/F CONTROLLER
Edge control and timing diagrams of 1-Wire signals
USB COMMUNICATION
Configuration model, core and vendor-specific command
summaries
MODE COMMANDS
Commands used to configure 1-Wire interface operational
characteristics
CONTROL COMMANDS
Commands used to control 1-Wire communication
command processing
COMMUNICATION COMMANDS
Commands used to communicate with an attached 1-Wire
device
DEVICE FEEDBACK
Technique to obtain device status information
USB TRANSCEIVER
Transceiver connection requirements
OSCILLATOR
Oscillator connection requirements
SUSPEND OUTPUT
SUSO signal operation and purpose
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2490Y+ | 制造商:Maxim Integrated Products 功能描述:USB TO 1-WIRE BRIDGE 24SOIC W - Tape and Reel |
| DS24B33 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1-Wire 4Kb EEPROM |
| DS24B33 R | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1-Wire 4Kb EEPROM |
| DS24B33 T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1-Wire 4Kb EEPROM |
| DS24B33 TR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1-Wire 4Kb EEPROM |
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