DS2401Z+ Maxim Integrated Products, DS2401Z+ Datasheet - Page 8
![IC SILICON SERIAL NUMBER SOT-223](/photos/6/94/69438/406-sot-223_sml.jpg)
DS2401Z+
Manufacturer Part Number
DS2401Z+
Description
IC SILICON SERIAL NUMBER SOT-223
Manufacturer
Maxim Integrated Products
Specifications of DS2401Z+
Applications
*
Mounting Type
Surface Mount
Package / Case
SOT-223 (3 leads + Tab), SC-73, TO-261
Data Bus Width
64 bit
Interface Type
1-Wire
Maximum Operating Current
5 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Supply Voltage (max)
6 V
Supply Voltage (min)
2.8 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
READ/WRITE TIMING DIAGRAM (cont’d) Figure 6
Write-zero Time Slot
Read-data Time Slot
CRC GENERATION
To validate the data transmitted from the DS2401, the bus master may generate a CRC value from the
data as it is received. This generated value is compared to the value stored in the last 8 bits of the
DS2401. If the two CRC values match, the transmission is error-free.
The equivalent polynomial function of this CRC is: CRC = x
the Dallas 1-Wire CRC is available in Application Note 27 .
CUSTOM DS2401
Customization of a portion of the unique 48-bit serial number by the customer is available. Dallas
Semiconductor will register and assign a specific customer ID in the 12 most significant bits of the 48-bit
field. The next most significant bits are selectable by the customer as a starting value, and the least
significant bits are non-selectable and will be automatically incremented by one. Certain quantities and
conditions apply for these custom parts. Contact your Dallas Semiconductor sales representative for more
information.
RESISTOR
MASTER
DS2401
60 μ s ≤ t
1 μ s ≤ t
60 μ s ≤ t
1 μ s ≤ t
0 ≤ t
1 μ s ≤ t
t
t
RDV
SU
< 1 μ s
RELEASE
= 15 μ s
8 of 10
REC
LOWR
REC
LOW0
SLOT
< ∞
< ∞
< 15 μ s
< 45 μ s
< 120 μ s
< t
SLOT
8
+ x
< 120 μ s
5
+ x
4
+ 1. Additional information about