ATMEGA169P-16MCU Atmel, ATMEGA169P-16MCU Datasheet - Page 268

• Manufacturer Part Number: ATMEGA169P-16MCU
• Description: MCU AVR 16K ISP FLSH 16MHZ 64QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA169P-16MCU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K 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: 64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• For Use With: ATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

25.5.5
8018P–AVR–08/10
Scanning the ADC
Figure 25-9
Boundary-scan cell from
need not be used for pure connectivity testing, since all analog inputs are shared with a digital
port pin as well.
Figure 25-9. Analog to Digital Converter.
The signals are described briefly in
NEGSEL_2
NEGSEL_1
NEGSEL_0
MUXEN_7
MUXEN_6
MUXEN_5
MUXEN_4
MUXEN_3
MUXEN_2
MUXEN_1
MUXEN_0
EXTCH
ADC_7
ADC_6
ADC_5
ADC_4
ADC_3
ADC_2
ADC_1
ADC_0
ADC_2
ADC_0
shows a block diagram of the ADC with all relevant control and observe signals. The
ADC_1
SCTEST
AMPEN
ACLK
Figure 25-5 on page 265
ST
To Comparator
+
-
1x
Table 25-3 on page
ADCBGEN
VCCREN
IREFEN
AREF
PASSEN
ACTEN
1.22V
GNDEN
ref
is attached to each of these signals. The ADC
1.11V
ref
269.
PRECH
DAC_9..0
ADCEN
HOLD
PRECH
AREF
10-bit DAC
ATmega169P
AREF
+
-
DACOUT
COMP
COMP
268