DS1318 Datasheet, PDF (2/15 Pages) Dallas Semiconductor – Parallel-Interface Elapsed Time Counter

Parallel-Interface Elapsed Time Counter
ABSOLUTE MAXIMUM RATINGS
Voltage Range on any Pin Relative to Ground ......-0.3V to +6.0V
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
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TSSOP (multilayer board)
Junction-to-Ambient Thermal Resistance (θ_JA) ............72°C/W
Junction-to-Case Thermal Resistance (θ_JC) .................13°C/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.
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.
RECOMMENDED DC OPERATING CONDITIONS
(V_CC = V_CC(MIN) to V_CC(MAX), T_A = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage
Battery Voltage
V_CC
V_BAT
(Note 3)
(Note 3)
Logic 1 Voltage
V_IH
(Note 3)
Logic 0 Voltage
V_IL
(Note 3)
MIN
3.0
1.6
0.7 x
V_CC
-0.5
TYP
3.3
3.3
MAX
3.6
3.7
V_CC +
0.5
+0.3 x
V_CC
UNITS
V
V
V
V
DC ELECTRICAL CHARACTERISTICS
(V_CC = V_CC(MIN) to V_CC(MAX), T_A = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
Logic 0 Output Current
(V_OL = 0.15 x V_CC)
I_OL
Logic 1 Output Current
(V_OH = 0.85 x V_CC)
I_OH
SQW, INT Logic 0 Output
(V_OL = 0.15 x V_CC)
Input Leakage
I/O Leakage
Active Supply Current
Standby Current
Battery Input-Leakage Current
Power-Fail Voltage
I_OLSI
I_LI
I_LO
I_CCA
I_CCS
I_BATLKG
V_PF
(Note 4)
(Note 5)
(Note 6)
(Note 7)
(Note 3)
MIN TYP MAX UNITS
3
mA
1
mA
5
mA
1
μA
-1
+1
μA
10
mA
100 150
μA
10
100
nA
2.70
2.97
V
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