Datasheet > DS2408

DS2408

更新时间： 2024-11-27 14:57:59

品牌	Logo	应用领域
亚德诺 - ADI		开关
页数	文件大小	规格书
39页	634K
描述
1-Wire、8通道、可编址开关

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中文翻译

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数据手册

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DS2408 数据手册

DS2408

1-Wire 8-Channel Addressable Switch

BENEFITS AND FEATURES

PIN CONFIGURATION

Control Eight Independent I/O Port Pins from a Single

Micro Port Pin

Eight Channels of Programmable I/O with

Open-Drain Outputs

On-Resistance of PIO Pulldown Transistor 100Ω

(max); Off-Resistance 10MΩ (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

Minimalist 1-Wire Interface Lowers Cost and

Interface Complexity

150-mil SO

Built-in Multidrop Controller Ensures

Compatibility with Other 1-Wire® Net Products

Supports 1-Wire Conditional Search Command

with Response Controlled by Programmable PIO

Conditions

ORDERING INFORMATION

PART

TEMP RANGE PIN-PACKAGE

DS2408S+

-40°C to +85°C

16 SO

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

DS2408S+T&R -40°C to +85°C

+Denotes a lead(Pb)-free package.

T&R = Tape and reel.

Wide Voltage and Temperature Operating Ranges

Enables Robust System Performance

2.8V to 5.25V

-40°C to +85°C Industrial Temperature Range

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 100Ω 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.

1-Wire is a registered trademark of Maxim Integrated Products, Inc.

1 of 39

19-5702; 3/15

12 3 4 5 6 7...39

中文翻译

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与DS2408相关器件

型号	品牌	获取价格	描述	数据表
DS2408_10	MAXIM	获取价格	1-Wire 8-Channel Addressable Switch
DS2408S	MAXIM	获取价格	1-Wire 8-Channel Addressable Switch
DS2408S	ROCHESTER	获取价格	8 I/O, PIA-GENERAL PURPOSE, PDSO16, 0.150 INCH, SOP-16
DS2408S	DALLAS	获取价格	Micro Peripheral IC,
DS2408S/R	MAXIM	获取价格	1-Wire 8-Channel Addressable Switch
DS2408S/T	MAXIM	获取价格	1-Wire 8-Channel Addressable Switch
DS2408S/T&R	MAXIM	获取价格	Parallel I/O Port, 8 I/O, CMOS, PDSO16, 0.150 INCH, SOP-16
DS2408S/T&R	MAXIM	获取价格	1-Wire 8-Channel Addressable Switch
DS2408S/TR	DALLAS	获取价格	Micro Peripheral IC,
DS2408S+	MAXIM	获取价格	Parallel I/O Port, 8 I/O, CMOS, PDSO16, 0.150 INCH, ROHS COMPLIANT, SOP-16

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