AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 596

• 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

40.2
Table 40-1.
Part
Chip ID
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
EFC
JTAG
MCK
NVM Bits
PIO
PIO
PIO
PMC
PMC
PWM
PWM
PWM
PWM
PWM
RTT
RTT
SPI
SPI
SPI
Errata Summary by Product and Revision or Manufacturing Number
Errata
Wrong Chip ID Value
DRDY Bit Cleared
DRDY not Cleared on Disable
DRDY Possibly Skipped due to CDR Read
Possible Skip on DRDY when Disabling a Channel
GOVRE Bit is not Updated
GOVRE Bit is not Set when Reading CDR
GOVRE Bit is not Set when Disabling a Channel
OVRE Flag Behavior
EOC Set although Channel Disabled
Spurious Clear of EOC Flag
Sleep Mode
Embedded Flash Access Time 1
Embedded Flash Access Time 2
Recommendation for TDI Pin
Limited Master Clock Frequency Ranges
Leakage on PA17 - PA20
Electrical Characteristics on NRST and PA0-PA16 and
PA21-31
Drive Low NRST, PA0-PA16 and PA21-PA31
Slow Clock Selected in PMC and a Transition Occurs on
PA1
Programming CSS in PMC_MCKR Register
Update when PWM_CCNTx = 0 or 1
Update when PWM_CPRDx = 0
Counter Start Value
Constraints on Duty Cycle Value
Behavior of CHIDx Status Bits in the PWM_SR Register
Possible Event Loss when Reading RTT_SR
RTT_VR May be Corrupted
Software Reset Must be Written Twice
Pulse Generation on SPCK
Bad Behavior when CSAAT = 1 and SCBR = 1
Write/Erase Cycles Number
Errata Summary Table
Revision or Manufacturing Number
SAM7Sx Product
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SAM7S Series [DATASHEET]
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
6175M–ATARM–26-Oct-12
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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