AT91FR40162S-CJ Atmel, AT91FR40162S-CJ Datasheet - Page 200

• Manufacturer Part Number: AT91FR40162S-CJ
• Description: IC ARM MCU FLASH 1K 121BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91FR40162S-CJ

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 75MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 2MB (1M x 16)
• Program Memory Type: FLASH
• Ram Size: 256K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 121-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

21. Mechanical Characteristics
21.1
200
Thermal Considerations
AT91FR40162S Preliminary
The average chip-junction temperature T
Where:
From the first equation, the user can derive the estimated lifetime of the chip and thereby decide
if a cooling device is necessary or not. If a cooling device is to be fitted on the chip, the second
equation should be used to compute the resulting average chip-junction temperature T
1.
2.
•
•
•
• P
• T
Consumption”, on page
JA
JC
HEAT SINK
A
D
T
T
= ambient temperature (°C).
= device power consumption (W) estimated from data provided in
= package thermal resistance, Junction-to-ambient (°C/W).
= package thermal resistance, Junction-to-case thermal resistance (°C/W),.
J
J
=
=
T
T
A
A
= cooling device thermal resistance (°C/W), provided in the device datasheet.
+
+
P
P
D
D
HEATSINK
JA
178.
+
JC
J
in °C can be obtained from the following:
Section 19.5 ”Power
6174B–ATARM–07-Nov-05
J
in °C