ATMEGA3250P-20AUR Atmel, ATMEGA3250P-20AUR Datasheet - Page 236

• Manufacturer Part Number: ATMEGA3250P-20AUR
• Description: MCU AVR 32K FLASH 20MHZ 100TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA3250P-20AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

23.5.4
236
ATmega325P/3250P
Scanning the Analog Comparator
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 23-6. Analog Comparator
Figure 23-7. General Boundary-scan cell Used for Signals for Comparator and ADC
From Analog Ciruitry
From Digital Logic/
Table
ADCEN
ACME
23-3.
ADC MULTIPLEXER
REFERENCE
BANDGAP
OUTPUT
Figure 23-7
Previous
From
Cell
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
8023F–AVR–07/09
23-6. The