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參數資料
| 型號： | DS2490Y |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/50頁 |
| 文件大小： | 0K |
| 描述： | IC BRIDGE CLIP USB TO 1-W 24SOIC |
| 標準包裝： | 1,000 |
| 應用： | 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） |
| 供應商設備封裝： | 24-SOIC W |
| 包裝： | 管件 |
| 安裝類型： | 表面貼裝 |
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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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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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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