DS1340U-3 Maxim Integrated Products, DS1340U-3 Datasheet - Page 14

• Manufacturer Part Number: DS1340U-3
• Description: IC RTC I2C W/CHARGER 3V 8-USOP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/Trickle-Chargerr

Specifications of DS1340U-3

• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -

I
The DS1340C 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. Exposure to reflow is limited to 2
times maximum. Ultrasonic cleaning should be avoided
to prevent damage to the crystal.
PROCESS: CMOS
SUBSTRATE CONNECTED TO GROUND
Theta-JA: 170°C/W (0.150in SO)
Theta-JC: 40°C/W (0.150in SO)
Theta-JA: 221°C/W (µSOP)
Theta-JC: 39°C/W (µSOP)
Theta-JA: 89.6°C/W (0.300in SO)
Theta-JC: 24.8°C/W (0.300in SO)
14
2
C RTC with Trickle Charger
____________________________________________________________________
TOP VIEW
Handling, PC Board Layout,
V
BACKUP
GND
X1
X2
1
Thermal Information
2
3
4
SO, µSOP
DS1340
Chip Information
and Assembly
8
7
6
5
V
FT/OUT
SCL
SDA
CC
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in
the package code indicates RoHS status only. Package draw-
ings may show a different suffix character, but the drawing per-
tains to the package regardless of RoHS status.
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 connect-
ed to ground.
Moisture-sensitive packages are shipped from the facto-
ry dry-packed.Handling instructions listed on the pack-
age label must be followed to prevent damage during
reflow. Refer to the IPC/JEDEC J-STD-020 standard for
moisture-sensitive device (MSD) classifications.
16 SO (300 mils)
8 SO (150 mils)
PACKAGE
8 µSOP
TYPE
FT/OUT
N.C.
N.C.
N.C.
N.C.
N.C.
SCL
V
CC
PACKAGE
W16#H2
1
2
6
3
4
5
7
8
CODE
U8+1
S8+2
SO (300 mils)
Package Information
DS1340C
Pin Configurations
OUTLINE NO.
21-0041
21-0036
21-0042
16
15
14
13
12
11
10
9
SDA
GND
V
N.C.
N.C.
N.C.
N.C.
N.C.
BACKUP
PATTERN NO.
90-0096
90-0092
90-0107
LAND