SAM7X256 Atmel Corporation, SAM7X256 Datasheet - Page 636

• Manufacturer Part Number: SAM7X256
• Manufacturer: Atmel Corporation

Specifications of SAM7X256

• Flash (kbytes): 256 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 62
• Ext Interrupts: 62
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 3
• Can: 1
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

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636
Errata Summary by Product and Revision or Manufacturing Number
SAM7X512/256/128
Table 41-1.
Part
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
CAN
CAN
EFC1
EFC2
EMAC
EMAC
EMAC
PIO
PIO
PIO
PWM
PWM
PWM
PWM
RTT
SPI
SPI
Errata
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
Low Power Mode and Error Frame
Low Power Mode and Pending Transmit Messages
Embedded Flash Access Time 1
Embedded Flash Access Time 2
RMII Mode
Possible Event Loss when Reading EMAC_ISR
Possible Event Loss when Reading the Statistics Register Block
Leakage on PB27 - PB30
Electrical Characteristics on NRST and PA0-PA30 and PB0 -
PB26
Drive Low NRST, PA0-PA30 and PB0-PB26
Update when PWM_CCNTx = 0 or 1
Update when PWM_CPRDx = 0
Counter Start Value
Behavior of CHIDx Status Bits in the PWM_SR Register
Possible Event Loss when Reading RTT_SR
Software Reset Must be Written Twice
Bad Behavior when CSAAT = 1 and SCBR = 1
Errata Summary Table
Revision or Manufacturing Number
SAM7Xx 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
6120I–ATARM–06-Apr-11
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