IDT1337
REA LTIME CLOCK WITH SERIAL INTERFACE RTC
IDT™
REAL-TIME CLOCK WITH I
2
C SERIAL INTERFACE 17
IDT1337 REV H 120208
Thermal Characteristics for 8SOIC
Thermal Characteristics for 8MSOP
Thermal Characteristics for 16SOIC
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
