參數(shù)資料
型號： DS2408
廠商： Maxim Integrated Products, Inc.
英文描述： 1-Wire 8-Channel Addressable Switch
中文描述： 1-Wire、8通道、可編址開關
文件頁數(shù)： 1/36頁
文件大?。?/td> 1244K
代理商： DS2408
DS2408
1-Wire 8-Channel Addressable Switch
www.maxim-ic.com
FEATURES
Eight Channels of Programmable I/O with
Open-Drain Outputs
On-Resistance of PIO Pulldown Transistor
100 (max); Off-Resistance 10M (typ)
Individual Activity Latches Capture
Asynchronous State Changes at PIO Inputs
for Interrogation by the Bus Master
Data-Strobe Output to Synchronize PIO
Logic States to External Read/Write Circuitry
Built-in Multidrop Controller Ensures
Compatibility with Other Dallas
Semiconductor 1-Wire
Net Products
Supports 1-Wire Conditional Search
Command with Response Controlled by
Programmable PIO Conditions
Unique Factory-Lasered 64-Bit Registration
Number Ensures Error-Free Device Selection
and Absolute Part Identity
Communicates to Host with a Single Digital
Signal at 15.3kbps or 100kbps using 1-Wire
Protocol
Operating Range: 2.8V to 5.25V, -40°C to
+85°C
DESCRIPTION
The DS2408 is an 8-channel, programmable I/O 1-Wire chip. PIO outputs are configured as open-drain
and provide an on resistance of 100 max. A robust PIO channel-access communication protocol ensures
that PIO output-setting changes occur error-free. A data-valid strobe output can be used to latch PIO logic
states into external circuitry such as a D/A converter (DAC) or microcontroller data bus.
DS2408 operation is controlled over the single-conductor 1-Wire bus. Device communication follows the
standard Dallas Semiconductor 1-Wire protocol. Each DS2408 has its own unalterable and unique 64-bit
ROM registration number that is factory lasered into the chip. The registration number guarantees unique
identification and is used to address the device in a multidrop 1-Wire net environment. Multiple DS2408
devices can reside on a common 1-Wire bus and can operate independently of each other. The DS2408
also supports 1-Wire conditional search capability based on PIO conditions or power-on-reset activity;
the conditions to cause participation in the conditional search are programmable. The DS2408 has an
optional V
CC
supply connection. When an external supply is absent, device power is supplied parasitically
from the 1-Wire bus. When an external supply is present, PIO states are maintained in the absence of the
1-Wire bus power source. The RSTZ signal is configurable to serve as either a hard-wired reset for the
PIO output or as a strobe for external circuitry to indicate that a PIO write or PIO read has completed.
PIN CONFIGURATION
16
15
14
13
12
11
10
9
N.C.
N.C.
P1
P2
P3
P4
RSTZ
P5
N.C.
P0
V
CC
I/O
GND
N.C.
P7
P6
1
2
3
4
5
6
7
8
150-mil SO
ORDERING INFORMATION
PART
TEMP
RANGE
PACKAGE
DS2408
S -40 C to +85 C
DS2408S
/T&R
16-Pin SO, 150 mil
Tape-and-Reel of
DS2408S
-40 C to +85 C
1 of 36
061604
1-Wire is a registered trademark of Dallas Semiconductor.
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相關代理商/技術參數(shù)
參數(shù)描述
DS2408_10 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1-Wire 8-Channel Addressable Switch
DS2408S 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
DS2408S/R 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1-Wire 8-Channel Addressable Switch
DS2408S/T 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1-Wire 8-Channel Addressable Switch
DS2408S/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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