AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 6

• 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: -

Table 4-1.
Notes:
6
Module
Timer T0
ADC
SPI
CAN0
JTAG
Power
Supplies
1. Values in brackets are values at reset H (high level), L (low level), Z (tri-state), I (input), O (output).
2. The EBI bus (address bus A[21:0], data bus D[15:0] and control lines NOE/NRD, NWR0/NWE, NWR1/NUB and NCS[3:0]) is
3. The EBI data bus D[15:0] has an internal pull-down.
AT91SAM7A1
tri-stated when NRESET is at a logical 0. This allows external equipment to access the external memory devices (e.g., for
Flash programming). It is up to the application to add an external pull-up on the chip select lines in order to avoid EBI con-
flicts at reset.
Name
T0TIOA[2:0]/MPIO
T0TIOB[2:0]/MPIO
T0TCLK[2:0]/MPIO
ANAIN[7:0]
VREFP
SPCK/MPIO
MISO/MPIO
MOSI/MPIO
NPCS[3:1]/MPIO
NPCS0/MPIO
CANRX0
CANTX0
SCANEN
TDI
TDO
TMS
TCK
TEST
VDDCORE
VDDANA
VDDIO
GND
Pin Description
Function
Capture/waveform I/O
Trigger/waveform I/O
External clock/trigger/input
Analog input
Positive voltage reference
SPI clock line
SPI master in slave out
SPI master out slave in
SPI chip select
SPI chip select
CAN0 receive line
CAN0 transmit line
Scan enable (Factory test)
Test Data In
Test Data Out
Test Mode Select
Test Clock
Factory test
Core Power Supply
Analog Power Supply
I/O Lines Power Supply
Ground
Type
I/O (I)
I/O (I)
I/O (I)
I/O (I)
I/O (I)
I/O (I)
I/O (I)
I/O (I)
O
O
–
–
–
–
I
I
I
I
I
I
I
I
(1)
Level
L (H)
(Z)
(Z)
(Z)
(Z)
(Z)
(Z)
(Z)
(Z)
H
H
L
(1)
Multiplexed with a general-purpose I/O
Comments
Multiplexed with a general-purpose I/O
Multiplexed with a general-purpose I/O
Multiplexed with a general-purpose I/O
Multiplexed with a general-purpose I/O
Multiplexed with a general-purpose I/O
Multiplexed with a general-purpose I/O
Multiplexed with a general-purpose I/O
Internal pull-down (must be connected
to GND or leave unconnected for
normal operation)
Schmitt trigger, internal pull-up
Schmitt trigger, internal pull-up
Schmitt trigger, internal pull-up
Internal pull-down (must be connected
to GND or leave unconnected for
normal operation)
3.3V
3.3V
3.3V to 5V
6048C–ATARM–29-Jun-06