AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 597

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

40.3
Table 40-1.
Part
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SSC
SSC
SSC
TWI
TWI
TWI
TWI
TWI
USART
USART
USART
USART
USART
USART
Voltage
Regulator
Voltage
Regulator
WDT
WDT
Errata Organization by Product and Revision or Manufacturing Number
“SAM7S512 Errata - Revision A Parts” on page 599
“SAM7S512 Errata - Revision B Parts” on page 606
“SAM7S256 Errata - Manufacturing Number 58818C” on page 614
“SAM7S256 Errata - Revision A Parts” on page 624
Errata
LASTXFER (Last Transfer) behavior
SPCK Behavior in Master Mode
Chip Select and Fixed Mode
Baudrate Set to 1
Disable In Slave Mode
Disable Issue
Software Reset and SPIEN Bit
CSAAT = 1 and Delay
Bad Serial Clock Generation on 2nd Chip Select
Periodic Transmission Limitations in Master Mode
Transmitter Limitations in Slave Mode
Transmitter Limitations in Slave Mode
Clock Divider
Software Reset
Disabling Does not Operate Correctly
NACK Status Bit Lost
Possible Receive Holding Register Corruption
Hardware Handshake
CTS in Hardware Handshaking
Hardware Handshaking – Two Characters Sent
XOFF Character Bad Behavior
RXBRK Flag Error in Asynchronous Mode
DCD is active High instead of Low
Load Versus Temperature
The Watchdog Timer May Lock the Device in a Reset
State
The Watchdog Timer Status Register and Interrupt
Current Consumption in Deep Mode
Errata Summary Table (Continued)
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6175M–ATARM–26-Oct-12
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