AT91SAM7S321-AU Atmel, AT91SAM7S321-AU Datasheet - Page 515

• Manufacturer Part Number: AT91SAM7S321-AU
• Description: IC ARM7 MCU FLASH 32K 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S321-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, I2S, SPI, SSC, TWI, UART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 10 bit
• Operating Supply Voltage: 1.8 V to 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7S-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Controller Family/series: AT91SAM7xxxx
• No. Of I/o's: 32
• Ram Memory Size: 8KB
• Cpu Speed: 55MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

37. Mechanical Characteristics
37.1
37.1.1
37.1.2
6175G–ATARM–22-Nov-06
Thermal Considerations
Thermal Data
Junction Temperature
Table 37-1
Table 37-1.
The average chip-junction temperature, T
where:
Symbol
θ
θ
1.
2.
• θ
• θ
• θ
• P
• T
JA
JC
page
Table 37-1 on page
36.3 ”Power Consumption” on page
JA
JC
HEAT SINK
A
D
= ambient temperature (°C).
T
T
= device power consumption (W) estimated from data provided in the section
= package thermal resistance, Junction-to-ambient (°C/W), provided in
= package thermal resistance, Junction-to-case thermal resistance (°C/W), provided in
J
J
515.
=
=
T
summarizes the thermal resistance data depending on the package.
T
Parameter
Junction-to-ambient thermal resistance
Junction-to-case thermal resistance
A
= cooling device thermal resistance (°C/W), provided in the device datasheet.
A
+
Thermal Resistance Data
+
P (
(
P
D
D
×
×
θ (
θ
HEATSINK
515.
JA
)
+
AT91SAM7S Series Preliminary
θ
JC
) )
501.
J
, in °C can be obtained from the following:
Condition
Still Air
Package
LQFP64
LQFP48
LQFP64
LQFP48
QFN64
QFN48
QFN64
QFN48
Table 37-1 on
49.0
49.5
25.5
26.4
14.1
12.7
Typ
5.9
5
Section
°C/W
Unit
515