AT91SAM9XE256-CU Atmel, AT91SAM9XE256-CU Datasheet - Page 15

• Manufacturer Part Number: AT91SAM9XE256-CU
• Description: MCU ARM9 256K FLASH 217-BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9XE256-CU

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 56K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 217-LFBGA
• Processor Series: AT91SAMx
• Core: ARM926EJ-S
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: 2-Wire, EBI, I2S, SPI, USART
• Maximum Clock Frequency: 180 MHz
• Number Of Programmable I/os: 96
• Number Of Timers: 6
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM9XE-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM9XE-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 4 Channel
• Package: 217LFBGA
• Device Core: ARM926EJ-S
• Family Name: 91S
• Maximum Speed: 180 MHz
• Operating Supply Voltage: 1.8|2.5|3.3 V
• For Use With: AT91SAM9XE-EK - KIT EVAL FOR AT91SAM9XEAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5. Power Considerations
5.1
6. I/O Line Considerations
6.1
6.2
6.3
6254C–ATARM–22-Jan-10
Power Supplies
ERASE Pin
I/O Line Drive Levels
Shutdown Logic Pins
The AT91SAM9XE128/256/512 has several types of power supply pins:
The power supplies VDDIOM, VDDIOP0 and VDDIOP1 are identified in the pinout table and
their associated I/O lines in the multiplexing tables. These supplies enable the user to power the
device differently for interfacing with memories and for interfacing with peripherals.
Ground pins GND are common to VDDCORE, VDDIOM, VDDIOP0 and VDDIOP1 pins power
supplies. Separated ground pins are provided for VDDBU, VDDPLL and VDDANA. These
ground pins are respectively GNDBU, GNDPLL and GNDANA.
The ERASE pin is used to re-initialize the Flash content and the NVM bits. It integrates a perma-
nent pull-down resistor of about 15 kΩ, so that it can be left unconnected for normal operations.
The ERASE pin is powered by VDDIOP0 rail.
This pin is debounced on the RC oscillator or 32,768 Hz low-power oscillator to improve the
glitch tolerance. Minimum debouncing time is 200 ms.
The PIO lines PA0 to PA31 and PB0 to PB31 and PC0 to PC3 are high-drive current capable.
Each of these I/O lines can drive up to 16 mA permanently with a total of 350 mA on all I/O lines.
Refer to the “DC Characteristics” section of the product datasheet.
The SHDN pin is a tri-state output only pin, which is driven by the Shutdown Controller. There is
no internal pull-up. An external pull-up to VDDBU is needed and its value must be higher than
• VDDCORE pins: Power the core, including the processor, the embedded memories and the
• VDDIOM pins: Power the External Bus Interface I/O lines; voltage ranges between 1.65V and
• VDDIOP0 pins: Power the Peripheral I/O lines and the USB transceivers; voltage ranges from
• VDDIOP1 pin: Powers the Peripherals I/O lines involving the Image Sensor Interface; voltage
• VDDBU pin: Powers the Slow Clock oscillator and a part of the System Controller; voltage
• VDDPLL pins: Power the PLL cells and the main oscillator; voltage ranges from 1.65V and
• VDDANA pin: Powers the Analog to Digital Converter; voltage ranges from 3.0V and 3.6V,
peripherals; voltage ranges from 1.65V and 1.95V, 1.8V nominal.
1.95V (1.8V typical) or between 3.0V and 3.6V (3.3V nominal). The expected voltage range is
selectable by software.
3.0V and 3.6V, 3V or 3.3V nominal.
ranges from 1.65V and 3.6V, 1.8V, 2.5V, 3V or 3.3V nominal.
ranges from 1.65V to 1.95V, 1.8V nominal.
1.95V, 1.8V nominal.
3.3V nominal.
AT91SAM9XE128/256/512 Preliminary
15