DS1390_09 Datasheet, PDF (25/26 Pages) Maxim Integrated Products – Low-Voltage SPI/3-Wire RTCs with Trickle Charger

Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
Typical Operating Circuits
CRYSTAL
V_CC
V_CC
X1
X2
V_CC
CS
CPU
SCLK
SQW/INT
DOUT
DIN
DS1390/
DS1394 _VBACKUP
GND
V_CC
CPU
RST
CRYSTAL
V_CC
X1
CS
SCLK
DOUT
DIN
RST
X2
V_CC
DS1391
V_BACKUP
GND
CRYSTAL
V_CC
V_CC
X1
X2
V_CC
CE
SQW
CPU
SCLK
I/O
DS1392
INT
V_BACKUP
GND
V_CC
CPU
RST
CRYSTAL
V_CC
X1
CE
SCLK
I/O
RST
X2
V_CC
SQW/INT
DS1393
V_BACKUP
GND
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
PACKAGE TYPE
10 µSOP
PACKAGE CODE
—
DOCUMENT NO.
21-0061
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