DS1339U-33+ Maxim Integrated Products, DS1339U-33+ Datasheet - Page 19

• Manufacturer Part Number: DS1339U-33+
• Description: IC RTC I2C W/ALARM 8-USOP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/Alarmr

Specifications of DS1339U-33+

• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.97 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Function: Clock/Calendar/Alarm/Trickle Charger
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.97 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (I2C)
• Supply Current: 450 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

HANDLING, PCB LAYOUT, AND ASSEMBLY
The DS1339C package contains a quartz tuning-fork crystal. Pick-and-place equipment may be used, but
precautions should be taken to ensure that excessive shocks are avoided. Ultrasonic cleaning should be avoided
to prevent damage to the crystal.
Avoid running signal traces under the package, unless a ground plane is placed between the package and the
signal line. All N.C. (no connect) pins must be connected to ground.
Moisture-sensitive packages are shipped from the factory dry-packed. Handling instructions listed on the package
label must be followed to prevent damage during reflow. Refer to the IPC/JEDEC J-STD-020B standard for
moisture-sensitive device (MSD) classifications.
PIN CONFIGURATIONS
CHIP INFORMATION
PROCESS: CMOS
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.
TOP VIEW
PACKAGE TYPE
8 µSOP
V
16 SO
BACKUP
GND
X1
X2
µSOP
DS1339
V
SCL
SDA
SQW/INT
CC
PACKAGE CODE
W16#H2
U8+1
19 of 20
TOP VIEW
OUTLINE NO.
21-0036
21-0042
SQW/INT
SCL
V
N.C.
N.C.
N.C.
N.C.
N.C.
CC
SO (300 mils)
DS1339 I
DS1339C
2
LAND PATTERN NO.
C Serial Real-Time Clock
SDA
GND
N.C.
N.C.
N.C.
N.C.
N.C.
V
BACKUP
90-0092
90-0107