IDT1337G
REA LTIME CLOCK WITH SERIAL INTERFACE RTC
IDT®
REAL-TIME CLOCK WITH I
2
C SERIAL INTERFACE 19
IDT1337G REV J 030111
Thermal Characteristics for 8SOIC
Thermal Characteristics for 8MSOP
Thermal Characteristics for 16SOIC
Thermal Characteristics for 16-pin QFN
Parameter Symbol Conditions Min. Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
JA
Still air 150 ° C/W
θ
JA
1 m/s air flow 140 ° C/W
θ
JA
3 m/s air flow 120 ° C/W
Thermal Resistance Junction to Case θ
JC
40 ° C/W
Parameter Symbol Conditions Min. Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
JA
Still air 95 ° C/W
Thermal Resistance Junction to Case θ
JC
48 ° C/W
Parameter Symbol Conditions Min. Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
JA
Still air 120 ° C/W
θ
JA
1 m/s air flow 115 ° C/W
θ
JA
3 m/s air flow 105 ° C/W
Thermal Resistance Junction to Case θ
JC
58 ° C/W
Parameter Symbol Conditions Min. Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
JA
Still air 69.4 ° C/W
θ
JA
1 m/s air flow 60.7 ° C/W
θ
JA
2.5 m/s air flow 54.4 ° C/W
Thermal Resistance Junction to Case θ
JC
9.7 ° C/W
