AT91SAM7A3-AU Atmel, AT91SAM7A3-AU Datasheet - Page 572

• 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

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