DS2408

更新时间： 2024-11-25 22:40:35

品牌	Logo	应用领域
美信 - MAXIM		开关
页数	文件大小	规格书
36页	1153K
描述
1-Wire 8-Channel Addressable Switch

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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

www.maxim-ic.com

FEATURES

PIN CONFIGURATION

CꢀEight Channels of Programmable I/O with

Open-Drain Outputs

N.C.

CꢀOn-Resistance of PIO Pulldown Transistor

100ꢀ (max); Off-Resistance 10Mꢀ (typ)

CꢀIndividual Activity Latches Capture

Asynchronous State Changes at PIO Inputs

for Interrogation by the Bus Master

CꢀData-Strobe Output to Synchronize PIO

Logic States to External Read/Write Circuitry

CꢀBuilt-in Multidrop Controller Ensures

Compatibility with Other Dallas

V_CC

I/O

GND

N.C.

RSTZ

150-mil SO

Semiconductor 1-Wire^®Net Products

CꢀSupports 1-Wire Conditional Search

Command with Response Controlled by

Programmable PIO Conditions

ORDERING INFORMATION

TEMP

PART

PACKAGE

CꢀUnique Factory-Lasered 64-Bit Registration

Number Ensures Error-Free Device Selection

and Absolute Part Identity

RANGE

DS2408S

/T&R

16-Pin SO, 150 mil

Tape-and-Reel of

DS2408S

-40LC to +85LC

CꢀCommunicates to Host with a Single Digital

Signal at 15.3kbps or 100kbps using 1-Wire

Protocol

CꢀOperating 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 100ꢀ 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_CCsupply 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 Dallas Semiconductor.

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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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