IDT1339
REAL-TIME CLOCK WITH SERIAL I2C INTERFACE
RTC
Thermal Characteristics for 8MSOP
Parameter
Symbol
θJA
Conditions
Still air
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
95
°C/W
Thermal Resistance Junction to Case
θJC
48
°C/W
Thermal Characteristics for 8SOIC
Parameter
Symbol
Conditions
Still air
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θJA
θJA
θJA
θJC
150
140
120
40
° C/W
° C/W
° C/W
° C/W
1 m/s air flow
3 m/s air flow
Thermal Resistance Junction to Case
Thermal Characteristics for 16SOIC
Parameter
Symbol
Conditions
Still air
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θJA
θJA
θJA
θJC
120
115
105
58
°C/W
°C/W
°C/W
°C/W
1 m/s air flow
3 m/s air flow
Thermal Resistance Junction to Case
IDT® REAL-TIME CLOCK WITH SERIAL I2C INTERFACE
20
IDT1339
REV K 032910
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
