DS1390U-18 Maxim Integrated Products, DS1390U-18 Datasheet - Page 25

• Manufacturer Part Number: DS1390U-18
• Description: Real Time Clock Low-Voltage SPI RTC with Trickle Charger
• Manufacturer: Maxim Integrated Products

Specifications of DS1390U-18

• Function: Clock, Calendar, Alarm, Trickle Charger
• Supply Voltage (max): 1.89 V
• Supply Voltage (min): 1.71 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Package / Case: uSOP
• Time Format: HH:MM:SS:hh

For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
PACKAGE TYPE
CPU
CPU
V
V
CC
CC
10 µSOP
DOUT
CS
SCLK
DIN
CE
SCLK
I/O
X1
X1
CRYSTAL
CRYSTAL
DS1390/
DS1394
DS1392
X2
X2
GND
GND
Low-Voltage SPI/3-Wire RTCs with
____________________________________________________________________
SQW/INT
V
V
V
BACKUP
V
BACKUP
V
V
CC
CC
CC
CC
SQW
INT
PACKAGE CODE
—
CPU
CPU
V
V
CC
CC
RST
RST
Typical Operating Circuits
I/O
SCLK
DOUT
SCLK
CS
DIN
RST
CE
RST
X1
X1
Trickle Charger
CRYSTAL
CRYSTAL
Package Information
DS1393
DS1391
X2
X2
GND
GND
DOCUMENT NO.
SQW/INT
V
V
V
V
BACKUP
V
V
BACKUP
CC
CC
CC
CC
21-0061
25