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| 型号： | DS2490S |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/50页 |
| 文件大小： | 0K |
| 描述： | IC BRIDGE CLIP USB TO 1-W 24SOIC |
| 标准包装： | 31 |
| 应用： | USB |
| 接口： | 1 线 |
| 电源电压： | 3 V ~ 5.5 V |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
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19-4993; 10/09
DS2490
USB to 1-Wire Bridge Chip
www.maxim-ic.com
FEATURES
PIN ASSIGNMENT
1 of 50
Communicates at regular and overdrive 1-
Wire speeds
Supports stiff 5V pullup for EEPROM,
sensors, and crypto iButton
Slew rate controlled 1-Wire timing and active
pullup to accommodate long 1-Wire network
lines and reduce radiation
Programmable 1-Wire timing and driver
characteristics accommodate a wide range of
1-Wire network configurations
Low- to high-level command types, including
macros, for generating 1-Wire communication
Crystal oscillator timebase provides precision
timed 1-Wire waveforms
High-speed 12Mbps Universal Serial Bus
(USB) interface
Integrated USB-compliant transceiver
Supports USB remote wake-up from a 1-Wire
device event to resume a suspended host
system
0oC to +70oC operating temperature range
VD
NC
XI
XO
NC
VD2
NC
1-WIRE
PMOD
NC
VB
NC
D-
D+
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
SUSO
24-Pin SO
Top View
(300-mil)
ORDERING INFORMATION
PART NUMBER
TEMP
RANGE
PIN-PACKAGE
DS2490S+
0oC to +70oC
24 SO (300 mil)
DS2490S+T&R
0oC to +70oC
24 SO (300mil)
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
DESCRIPTION
The DS2490 is a bridge chip that enables communication between a USB host system and a 1-Wire bus.
It provides regular, overdrive, and flexible 1-Wire communication speeds and a full-speed 12Mbps
connection to USB. USB vendor-specific commands defined in this specification are used to control the
DS2490 and communicate with attached 1-Wire devices. A functional block diagram of the DS2490 is
shown in Figure 1.
1-Wire and iButton are registered trademarks of Maxim Integrated Products, Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 制造商全称:Maxim Integrated Products 功能描述:USB to 1-Wire Bridge Chip |
| DS2490X | 制造商:未知厂家 制造商全称:未知厂家 功能描述:USB to 1-Wire Bridge Chip(468.41 k) |
| DS2490X/T&R | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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