DS1848B-010+ Maxim Integrated Products, DS1848B-010+ Datasheet - Page 4
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DS1848B-010+
Manufacturer Part Number
DS1848B-010+
Description
IC RES/MEM TEMP 10/10K 16-BGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1848E-010TR.pdf
(17 pages)
Specifications of DS1848B-010+
Taps
256
Resistance (ohms)
10K
Number Of Circuits
2
Temperature Coefficient
850 ppm/°C Typical
Memory Type
Non-Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-40°C ~ 95°C
Mounting Type
Surface Mount
Package / Case
16-CSBGA
Resistance In Ohms
10K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Location Name of Location
00h to 47h
(the Table Select
Byte, E0h, must be
set to 01h or 02h to
access the Look-
Up Tables)
00h to 7Fh
(the Table Select
Byte, E0h, must be
set to 00h to access
the User EEPROM
Memory)
E0h
E1h
User Defined Look-Up Table
(LUT)
User Memory
Table Select Byte
Configuration Byte
4 of 17
Function of Location
This block contains the user-defined temperature
settings of the resistors. Values between 00h and
FFh can be written to either table to set the 256
position variable resistors. The first address
location, 00h, is used to set the resistor at -40°C.
Each successive memory location will contain the
resistor setting for the previous temperature +2°C.
For example, memory address 01h is the address
that will set the resistor in a -38°C environment.
For default memory settings and programming
the look-up table, refer to the Programming the
Look-Up Table (LUT) section of the datasheet.
This block is for general-purpose user memory.
When shipped from the factory, memory
locations 60h – 6Bh contain the same information
as found in Look-Up Table 1, memory locations
28h – 33h. Memory locations 6Ch – 77h contain
the same information as found in Look-Up Table
2, memory locations 28h – 33h.
Writing to this byte determines if one of the two
72x8 EEPROM look-up tables or the user
EEPROM memory is selected for reading or
writing.
00h (User EEPROM selected)
01h (Look-Up Table 1 selected)
02h (Look-Up Table 2 selected)
TAU – Temperature/Address Update
TEN – Temperature Update Enable
AEN – Address Update Enable
Default setting is 03h, TAU = 1, TEN = 1 and
AEN = 1.
TAU becomes a 1 after a temperature and address
update has occurred as a result of a temperature
conversion. The user can write this bit to 0 and
check for a transition from 0 to 1 in order to
verify that a conversion has occurred.
If TEN = 0, the temperature conversion feature is
disabled. The user sets the resistor in “manual
mode” by writing to addresses F0h and F1h to
control resistors 0 and 1, respectively.
TAU TEN AEN