AT91SAM7S321-MU-999 Atmel, AT91SAM7S321-MU-999 Datasheet - Page 15

• Manufacturer Part Number: AT91SAM7S321-MU-999
• Description: IC MCU ARM7 32KB FLASH 64-VQFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S321-MU-999

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.6
6175IS–ATARM–30-Aug-10
I/O Line Drive Levels
tor from the I/O line to VDDIO. Care should be taken, in particular at reset, as all the I/O lines
default to input with the pull-up resistor enabled at reset.
The PIO lines PA0 to PA3 are high-drive current capable. Each of these I/O lines can drive up to
16 mA permanently.
The remaining I/O lines can draw only 8 mA.
However, the total current drawn by all the I/O lines cannot exceed 150 mA (100 mA for
AT91SAM7S32/16).
AT91SAM7S Series Summary
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