DS1374U-3 Maxim Integrated Products, DS1374U-3 Datasheet - Page 2

• Manufacturer Part Number: DS1374U-3
• Description: Real Time Clock
• Manufacturer: Maxim Integrated Products

Specifications of DS1374U-3

• Function: Clock, Calendar, Elapsed Time Counter, Watchdog Timekeeper
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Package / Case: uSOP
• Time Format: Binary
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
Voltage Range on V
Voltage Range on SDA or SCL
Junction-to-Ambient Thermal Resistance (θ
I
Trickle Charger and Reset Input/Output
RECOMMENDED DC OPERATING CONDITIONS
(V
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
Supply Voltage
(Notes 3, 4)
Input Logic 1
Input Logic 0
Pullup Resistor Voltage (INT,
SQW, SDA, SCL), V
Power-Fail Voltage
(Note 3)
Backup Supply Voltage
(Notes 3, 4, 5)
2
CC
Relative to Ground ....................................-0.3V to V
16-Pin SO .....................................................................73°C/W
10-Pin µSOP ...............................................................221°C/W
C, 32-Bit Binary Counter Watchdog RTC with
_____________________________________________________________________
= V
CC(MIN)
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
PARAMETER
to V
CC
CC
CC(MAX)
Pin Relative to Ground .....-0.3V to +6.0V
= 0V
, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 2)
SYMBOL
V
BACKUP
V
V
V
V
V
CC
PU
PF
IH
IL
JA
) (Note 1)
DS1374-33
DS1374-3
DS1374-18
(Note 3)
(Note 3)
(Note 3)
DS1374-33
DS1374-3
DS1374-18
DS1374-33
DS1374-3, DS1374-18
CC
+ 0.3V
CONDITIONS
Junction-to-Case Thermal Resistance (θ
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-55°C to +125°C
Lead Temperature (soldering, 10s) .................................+260°C
Soldering Temperature (reflow) .......................................+260°C
16-Pin SO .....................................................................23°C/W
10-Pin µSOP .................................................................39°C/W
0.7 x V
2.97
1.71
2.70
2.45
1.51
MIN
-0.3
2.7
1.3
1.3
CC
TYP
2.88
3.3
3.0
1.8
2.6
1.6
3.0
3.0
JC
) (Note 1)
V
CC
+0.3 x
(
MAX
5.50
1.89
2.97
1.71
V
V
MAX)
3.3
+ 0.3
5.5
2.7
3.7
CC
CC
UNITS
V
V
V
V
V
V