DS2401
Silicon Serial Number
www.maxim-ic.com
FEATURES
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PIN ASSIGNMENT
Upgrade and drop-in replacement for DS2400
— Extended 2.8 to 6.0 voltage range
— Multiple DS2401s can reside on a
common 1-Wireâ Net
Unique, factory-lasered and tested 64-bit
registration number (8-bit family code + 48bit serial number + 8-bit CRC tester);
guaranteed no two parts alike
Built-in multidrop controller ensures
compatibility with other 1-Wire Net
products
8-bit family code specifies DS2401
communications requirements to reader
Presence Pulse acknowledges when the
reader first applies voltage
Low-cost TO-92, SOT-223, and TSOC
surface mount packages
Reduces control, address, data, and power to
a single pin
Zero standby power required
Directly connects to a single port pin of a
microprocessor and communicates at up to
16.3kbits/s
TO-92 Tape & Reel version with leads bent
to 100mil spacing (default) or with straight
leads (DS2401T-SL)
Applications
— PCB Identification
— Network Node ID
— Equipment Registration
Operates over industrial temperature range of
-40°C to +85°C
TO-92
TSOC PACKAGE
DALLAS
DS2401
TOP VIEW
3.7mm x 4.0mm x 1.5mm
1
2
3
1 2 3
TOP VIEW
See Mech. Drawings
Section
BOTTOM VIEW
PIN DESCRIPTION
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5-6
TO-92/SOT-223
Ground
Data (DQ)
No Connect
Ground
-
TSOC
Ground
Data (DQ)
No Connect
No Connect
No Connect
ORDERING INFORMATION
DS2401
TO-92 Package
DS2401Z
SOT-223 Surface Mount Package
DS2401/T&R Tape & Reel of DS2401
DS2401T-SL Like DS2401T but Straight Leads
DS2401Z/T&R Tape & Reel of DS2401Z
DS2401P
TSOC Surface Mount Package
DS2401P/T&R Tape & Reel of DS2401P
DS2401X1
Chip Scale Pkg., Tape & Reel
1-Wire is a registered trademark of Dallas Semiconductor.
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