DS1339A Datasheet, PDF (2/19 Pages) Maxim Integrated Products – Low-Current, I2C, Serial Real-Time Clock

DS1339A
Low-Current, I²C, Serial Real-Time Clock
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground.....-0.3V to +6.0V
Operating Temperature Range (Noncondensing).....-40NC to +85NC
Storage Temperature Range............................. -55NC to +125NC
Lead Temperature (soldering, 10 seconds)....................+300NC
Soldering Temperature (reflow).......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
µSOP
Junction-to-Ambient Thermal Resistance (B_JA)......206.3NC/W
Junction-to-Case Thermal Resistance (B_JC)................42NC/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
RECOMMENDED OPERATING CONDITIONS
(T_A = -40NC to +85NC, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage
Backup Supply Voltage
V_CC
V_BACKUP
V_BACKMIN
Logic 1
V_IH
Logic 0
V_IL
Power-Fail Voltage
V_PF
MIN TYP MAX UNITS
1.71 3.3
5.5
V
1.3
3.0
3.7
V
1.15 1.3
0.7 x
V_CC
5.5
V
-0.3
0.3 x
V_CC
V
1.51 1.61 1.71
V
DC ELECTRICAL CHARACTERISTICS
(V_CC = MIN to MAX, V_BACKUP = MIN to MAX, T_A = -40NC to +85NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
Input Leakage
I/O Leakage
Logic 0 Out (SDA or SQW/INT)
V_OL = 0.4V,
V_CC R V_CCMIN
Logic 0 Out (SQW/INT)
V_OL = 0.2V, V_CC = 0V,
V_BAT R V_BATMIN
V_CC Active Current
V_CC Standby Current
Trickle-Charger Resistor Register
10h = A5h, V_CC = Typ,
V_BACKUP = 0V
I_LI
I_LO
I_OL
I_OL
I_CCA
I_CCS
R1
(Note 3)
(Note 4)
(Note 4)
(Note 4)
(Note 5)
(Note 6)
(Note 7)
MIN TYP MAX UNITS
-0.1
0.1
FA
-0.1
0.1
FA
3
mA
250
FA
450
FA
200
FA
200
I
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