AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 762

• 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

Version
6175F
Comments (Continued)
Section 37. ”SAM7S Electrical Characteristics”
following tables.
Table 37-2, “DC Characteristics”
Table 37-5, “DC Flash Characteristics SAM7S64/321/32/161/16”
Table 37-6, “DC Flash Characteristics SAM7S512/256/128”
Table 37-7, “Power Consumption for Different Modes”
Table 37-8, “Power Consumption on VDDCORE
Table 37-10, “Main Oscillator Characteristics”
Table 37-11, “Crystal Characteristics”
Table 37-12, “XIN Clock Electrical Characteristics”
Table 37-13, “Phase Lock Loop Characteristics”
Table 37-22, “SPI Timings”
Section 37. ”SAM7S Electrical Characteristics”
“Absolute Maximum Ratings” on page
Table 37-7, “Power Consumption for Different
Section 38. ”Mechanical Characteristics”
Section 40. ”Errata”
TWI: Behavior of OVRE bit: eliminated.
change or added to all:
PIO: Leakage on PA17 - PA20...”
RTT: Possible Event Loss when Reading RTT_SR
SPI: Chip Select and Fixed Mode
SPI: Baudrate Set to 1
SPI: Disable in Slave Mode
TWI: Software Reset
USART: Hardware Handshaking – Two Characters are Sent
USART: XOFF Character Bad Behavior
added to AT91SAM7S64/32 only:
SPI: Disable Issue
SPI: Software Reset and SPIEN Bit
SPI: CSAAT = 1 and Delay
Change to AT91SAM7S321 only:
Voltage Regulator errata removed.
PWM: Constraints on Duty Cycle Value, updated all
Added
Section 40.1 ”Marking”
the leakage can be 9 µA in worst case...”
has been added.
557, change to Maximum Operating Voltages.
SAM7S512 added to Device and Package weights
Modes”, note added to table
AT91SAM7S512 specific info added and changes to the
(1)
”
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
Change
Request
Ref.
Review
#3058
#3061
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