AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 377

• Manufacturer Part Number: AT91SAM7A1-AU
• Description: IC ARM7 MCU 32BIT ROMLESS144LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7A1-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• For Use With: AT91SAM7A1-EK - BOARD EVAL FOR AT91SAM7A1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

28. Packaging Information
28.1
6048B–ATARM–29-Jun-06
Thermal Considerations
The heat transfer between the top surface of the die and the surrounding ambient air can be
characterized by the following equation:
where:
P = Device operating power (in W)
T
T
Table 28-1.
JA
J
A
Package
LQFP
= Temperature of a junction on the device (in C)
= Temperature of the surrounding ambient air (in C)
= Package thermal resistance i.e. between junction and ambient air (in C/W)
Package Thermal Resistance Data
T
J
–
T
A
=
P
JA
37
JA
(in C/W)
AT91SAM7A1
377