AT91SAM7S64C-AU Atmel, AT91SAM7S64C-AU Datasheet - Page 622
AT91SAM7S64C-AU
Manufacturer Part Number
AT91SAM7S64C-AU
Description
IC ARM7 MCU 32BIT 64K 64LQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7S16-MU.pdf
(779 pages)
Specifications of AT91SAM7S64C-AU
Package / Case
64-LQFP
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
55MHz
Number Of I /o
32
Core Processor
ARM7
Program Memory Type
FLASH
Ram Size
16K x 8
Program Memory Size
64KB (64K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, SPI, SSC, UART/USART, USB
Core Size
16/32-Bit
Core
ARM7TDMI
Package
64LQFP
Device Core
ARM7TDMI
Family Name
AT91
Maximum Speed
55 MHz
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Number Of Programmable I/os
32
Interface Type
SPI/TWI/USART/USB
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
AT91SAM7S64B-AU::AT91SAM7S64B-AU
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7S64C-AU
Manufacturer:
ATMEL
Quantity:
4 300
Part Number:
AT91SAM7S64C-AU
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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40.6.12.3
40.6.12.4
40.6.12.5
40.6.13
40.6.13.1
40.6.13.2
40.6.14
40.6.14.1
622
AT91SAM7S Series Preliminary
Voltage Regulator
Watchdog Timer (WDT)
USART: XOFF Character Bad Behavior
USART: RXBRK Flag Error in Asynchronous Mode
USART: DCD is active High instead of Low
Voltage Regulator: Current Consumption in Deep Mode
Voltage Regulator: Load Versus Temperature
WDT: The Watchdog Timer May Lock the Device in a Reset State
The XOFF character is sent only when the receive buffer is detected full. While the XOFF is
being sent, the remote transmitter is still transmitting. As only one Holding register is available in
the receiver, characters will be lost in reception. This makes the software handshaking function-
ality ineffective.
None.
In receiver mode, when there are two consecutive characters (without timeguard in between),
RXBRK is not taken into account. As a result, the RXBRK flag is not enabled correctly and the
frame error flag is set.
Constraints on the transmitter device connected to the AT91SAM7S USART receiver side:
The transmitter may use the timeguard feature or send two STOP conditions. Only one STOP
condition is taken into account by the receiver state machine. After this STOP condition, as there
is no valid data, the receiver state machine will go in idle mode and enable the RXBRK flag.
The DCD signal is active at High level in the USART Modem Mode.
DCD should be active at Low level.
Add an inverter.
Current consumption in Deep Mode is maximum 60 µA instead of 25 µA.
Due to current rejection from VDDIN to VDDCORE, the current consumption in Deep Mode can-
not be guaranteed. Instead, 60 µA is guaranteed whatever the condition.
None.
Maximum load is 50 mA at 85 °C (instead of 100 mA).
Maximum load is 100 mA at 70°C.
None.
Under certain rare circumstances, if the Watchdog Timer is used with the Watchdog Reset
enabled (WDRSTEN set at 1), the Watchdog Timer may lock the device in a reset state when
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
6175K–ATARM–30-Aug-10
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