ATmega3290A Atmel Corporation, ATmega3290A Datasheet - Page 268

• Manufacturer Part Number: ATmega3290A
• Manufacturer: Atmel Corporation

Specifications of ATmega3290A

• Flash (kbytes): 32 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 69
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 160
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

26.5.4
8284D–AVR–6/11
Scanning the Analog Comparator
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
The relevant Comparator signals regarding Boundary-scan are shown in
Boundary-scan cell from
described in
The Comparator need not be used for pure connectivity testing, since all analog inputs are
shared with a digital port pin as well.
Figure 26-6. Analog Comparator
Figure 26-7. General Boundary-scan cell Used for Signals for Comparator and ADC
From Analog Ciruitry
From Digital Logic/
Table 26-3 on page
ADCEN
ACME
ADC MULTIPLEXER
REFERENCE
BANDGAP
OUTPUT
Figure 26-7
Previous
From
Cell
269.
ShiftDR
0
1
ACBG
ClockDR
is attached to each of these signals. The signals are
D
UpdateDR
Q
Next
Cell
To
ACD
D
G
Q
AC_IDLE
EXTEST
0
1
To Analog Circuitry/
To Digital Logic
ACO
Figure
26-6. The
268