IDT1337
REA LTIME CLOCK WITH SERIAL INTERFACE
RTC
Thermal Characteristics for 8SOIC
Parameter
Symbol
Conditions
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
θ
θ
θ
Still air
150
140
120
40
° C/W
° C/W
° C/W
° C/W
JA
JA
JA
JC
1 m/s air flow
3 m/s air flow
Thermal Resistance Junction to Case
Thermal Characteristics for 8MSOP
Parameter
Symbol
Conditions
Min.
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
Still air
95
° C/W
JA
Thermal Resistance Junction to Case
θ
48
° C/W
JC
Thermal Characteristics for 16SOIC
Parameter
Symbol
Conditions
Still air
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
θ
θ
θ
120
115
105
58
° C/W
° C/W
° C/W
° C/W
JA
JA
JA
JC
1 m/s air flow
3 m/s air flow
Thermal Resistance Junction to Case
2
IDT™ REAL-TIME CLOCK WITH I C SERIAL INTERFACE
17
IDT1337
REV H 120208
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
