AT91SAM7A3-AU Atmel, AT91SAM7A3-AU Datasheet - Page 572
AT91SAM7A3-AU
Manufacturer Part Number
AT91SAM7A3-AU
Description
IC ARM7 MCU FLASH 256K 100LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7A3-AU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
60MHz
Connectivity
CAN, I²C, MMC, SPI, SSC, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
62
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
32K 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
100-LQFP
Controller Family/series
AT91SAM7xx
No. Of I/o's
62
Ram Memory Size
32KB
Cpu Speed
60MHz
No. Of Timers
3
Rohs Compliant
Yes
Package
100LQFP
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
60 MHz
Operating Supply Voltage
3.3 V
Data Bus Width
32 Bit
Number Of Programmable I/os
62
Interface Type
CAN/SPI/I2S/TWI/USART/USB
On-chip Adc
2(8-chx10-bit)
Number Of Timers
3
Processor Series
AT91SAMx
Core
ARM7TDMI
Data Ram Size
32 KB
Maximum Clock Frequency
60 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM7A3-EK
Minimum Operating Temperature
- 40 C
Cpu Family
91S
Device Core Size
32b
Frequency (max)
60MHz
Total Internal Ram Size
32KB
# I/os (max)
62
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
100
Package Type
LQFP
For Use With
AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7A3-EK - KIT EVAL FOR AT91SAM7A3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7A3-AU
Manufacturer:
MXIC
Quantity:
1 001
Company:
Part Number:
AT91SAM7A3-AU
Manufacturer:
Atmel
Quantity:
730
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40.2
40.2.1
40.2.1.1
40.2.1.2
40.2.1.3
40.2.1.4
40.2.2
40.2.2.1
572
AT91SAM7A3 Errata - Rev. A Parts
AT91SAM7A3 Preliminary
MultiMedia Card Interface (MCI)
Parallel Input/Output Controller (PIO)
MCI: Data Timeout Error Flag
MCI: STREAM Command Not Supported
MCI: Data FIFO and Status Bits
MCI: DATA FIFO Problem with PDC
PIO: Leakage on PB14 - PB29
Refer to
As the data Timeout Error Flag cannot rise, the MCI can be stalled waiting indefinitely the Data
start bit.
A Software Timeout must be implemented and a STOP command must be sent when the time-
out has elapsed.
The STREAM READ/WRITE commands are not supported by the MCI.
None.
Do not read/write the Data FIFO if RXRDY/TXRDY status bits are not set.
None.
The shared FIFO is reset at the beginning of a transfer command.
In order not to lose data, it is mandatory to enable the PDC channel after having written to the
command register. In order to achieve this sequence correctly it is mandatory to disable all IT
sources.
When PB14 - PB29, (the I/O lines multiplexed with the analog inputs) are set as digital inputs
with pull-up disabled, the leakage can be 25 µA in worst case and 90 nA in typical case per I/O
when the I/O is set externally at low level.
Set the I/O to VDDIO by internal or external pull-up.
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Section 40.1 ”Marking”, on page 571
6042E–ATARM–14-Dec-06
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