Preliminary
DS2406
Dual Addressable Switch
Plus 1K-Bit Memory
www.dalsemi.com
FEATURES
PIN ASSIGNMENT
TO-92
6-PIN TSOC PACKAGE
ꢀ Open drain PIO pins are controlled and their
logic level can be determined over 1-Wire
bus for closed-loop control
1
2
3
6
5
4
DALLAS
DS2406
ꢀ Replaces and is fully compatible with
DS2407 but no user-programmable power-on
settings and no Hidden Mode.
TOP VIEW
ꢀ PIO channel A sink capability of 50 mA at
0.4V with soft turn-on; channel B 8 mA at
0.4V
SIDE VIEW
ꢀ Maximum operating voltage of 13V at PIO-
A, 6.5V at PIO-B
ꢀ 1024 bits user-programmable OTP EPROM
ꢀ User-programmable status memory to
control the device
See Mech. Drawings
Section
1
1
2
2
3
3
BOTTOM VIEW
ꢀ Multiple DS2406’s can be identified on a
common 1-Wire bus and be turned on or off
independently of other devices on the bus
ꢀ Unique, factory-lasered and tested 64-bit
registration number (8-bit family code + 48-
bit serial number + 8-bit CRC tester) assures
error-free selection and absolute identity
because no two parts are alike
PIN DESCRIPTION
TO-92
TSOC/CSP
Ground
Data
PIO-A
Vcc
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Ground
Data
PIO-A
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NC
PIO-B
ꢀ On-chip CRC16 generator allows detection
of data transfer errors
ꢀ Built-in multidrop controller ensures
compatibility with other 1-Wire net products
ꢀ Reduces control, address, data, programming
and power to a single data pin
ꢀ Directly connects to a single port pin of a
microprocessor and communicates at up to
16.3k bits/s
ORDERING INFORMATION
DS2406
TO-92package
DS2406P
DS2406T
DS2406V
DS2406X
6-pin TSOC package
Tape & Reel of DS2406
Tape & Reel of DS2406P
Chip Scale Pkg., Tape & Reel
ꢀ Supports Conditional Search with user-
selectable condition
ꢀ Vcc bondout for optional external supply to
the device (TSOC package only)
ꢀ 1-Wire communication operates over a wide
voltage range of 2.8V to 6.0V from -40°C to
+85°C
ꢀ Low cost TO-92 or 6-pin TSOC surface
mount package
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