DS2408S+T&R by Analog Devices

1-Wire 8-Channel Addressable Switch


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 VCC 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.

Where to Buy

Prices starting from US$4.63

Distributor Stock
Logo for Farnell
Farnell
from US$4.63
4,331
in stock
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Logo for Newark Electronics
Newark Electronics
from US$5.17
4,511
in stock
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Logo for element14
element14
from US$5.19
4,331
in stock
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Analog Devices
from US$4.98
1,187
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Features

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
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 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 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
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
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
Wide Voltage and Temperature Operating Ranges Enables Robust System Performance 2.8V to 5.25V -40°C to +85°C Industrial Temperature Range
2.8V to 5.25V
-40°C to +85°C Industrial Temperature Range

Specifications

End Equipment Peripheral ID and Control
Memory Type ROM
Bus Type 1-Wire
VSUPPLY (V) (min) 2.8
VSUPPLY (V) (max) 5.25
Package/Pins SOIC (N)/16
BudgetaryPrice (See Notes) 3.69


DS2408S+T&R Special Function by Analog Devices

ADDRESSABLE SWITCH NSOIC-16

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Function Addressable Switch
Supply Voltage Min 2.8V
Supply Voltage Max 5.25V
IC Package Type NSOIC
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Addressable Switch, Nsoic-16 | Newark Electronics
ADDRESSABLE SWITCH, NSOIC-16 | element14
1-Wire 8-Channel Addressable S | Analog Devices

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS2408S+T&R ?

Additional datasheets, footprints and schematics for DS2408S+T&R are listed on our Part Details page. You can also find images and similar parts to DS2408S+T&R on this page.

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Is the DS2408S+T&R RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS2408S+T&R have stock available?

Authorised distributors including Newark Electronics, element14, Farnell and Analog Devices have stock available or on a lead time for DS2408S+T&R .

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