MAX17043/MAX17044
Compact, Low-Cost 1S/2S Fuel Gauges
with Low-Battery Alert
13
Read Data Protocol
The read data protocol is used to read to register from
the MAX17043/MAX17044 starting at the memory
address specified by MAddr. Both register bytes must
be read in the same transaction for the register data to
be valid. Data0 represents the data byte in memory loca-
tion MAddr, Data1 represents the data from MAddr + 1,
and DataN represents the last byte read by the master:
Data is returned beginning with the MSB of the data in
MAddr. Because the address is automatically incre-
mented after the LSB of each byte is returned, the MSB
of the data at address MAddr + 1 is available to the
host immediately after the acknowledgment of the data
at address MAddr. If the bus master continues to read
beyond address FFh, the MAX17043/MAX17044 output
data values of FFh. Addresses labeled Reserved in the
memory map return undefined data. The bus master
terminates the read transaction at any byte boundary
by issuing a no acknowledge followed by a STOP or
Repeated START.
S. SAddr W. A. MAddr. A. Sr. SAddr R. A.
Data0. A. Data1. A... DataN. N. P
Package Information
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains
to the package regardless of RoHS status.
PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO.
8 TDFN T823+1
21-0174 90-0091
9 UCSP W91C1+1
21-0459
Refer to
Application Note 1891
